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Temperature for Pentium D 805

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April 3, 2006 5:48:51 AM

Guys, I'm using Pentium D 805 on Intel D945GNTL and :
- CPU temperature is around 58-62 Celcius
- Mobo temperature 37-40 Celcius
- Hdd Seagate Barracuda 80GB 7200.9 temperature 40-43 Celcius.
Are those temperatures normal? If I need HSF change, any recommendation please?
BTW the CPU fan control is on, and if I turn it off, it's only 3200rpm. I think it's quite slow coz my previous Pentium 3 was 4500rpm.
April 3, 2006 1:17:21 PM

If those are CPU idle temps.. I'd say that is too hot.

I'd check to see how much airflow your getting throw your case, first, since those temps seem abit high. I'd say anywhere 28-34C is good for case temp.

If it is airflow, you can try running it with the side off, do what ever you can to move that air out of the case (point a house fan at it), and check the temp. If it drops off to around 40ish C (idle), then I'd say your HSF is seated okay, and that you may have to work around the case to get airflow.

If it is not airflow, then I'd redo the thermal compound, and reseat the HSF, if the temp is at or above 50C with air forced on it.
April 4, 2006 5:56:43 AM

Yes it's idle temperature. Those were temperatures with my case open. I tried to close the case yesterday and the board temp increased to 49 Celcius.

Then I tried to put a fan on the case wall right in front of the HSF, but the temps were still high, they only drop around 2-4 degree compared with the case opened. The fan blew wind into the case.

Then I tried to put the fan on the back under PSU, take the heat out of the case. But it was as worse as the case closed without fan.

I can't find the right place to put my fan at the front. Any suggetion?
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April 4, 2006 10:12:17 AM

To get a picture of what your dealing with..

What kind of PC case you using?

Your idle - how many processes are running? (CPU load should be 0-2 percent, and somewhere 20+ processes)

Are you on the stock HSF by intel? Did you install the HSF yourself?

What videocard are you using? (looking at other heat sources)

I'm guessing you may possibly have an improperly installed HSF (should be able to get it into the mid 40's at least, idle) and not so good airflow from them mother board going up to 49C (with the side on). But not all MB sensors are going to give the same results.

I have about 4 different systems that have similar temp readings (general run times of at least 8hours case 29-34C / room temp 70-74F). One system (my dads- MB 50C) reads the highest, but his XP2400+ is idle 42C.

I know all different MB sensors are not going to be accuate, but they are good indicators to a point. Those temps are close to a threshold to where the PC may shut down from CPU overheating, or back throttle allot since it is a P805.

Hopefully you can get good sound advice from the people here.
April 5, 2006 6:03:42 AM

I using a cheap Simbadda case, it has 2 place to put 2 fan at the back under PSU. My idle was only running 3 Internet Explorer and Winamp 5 with classic skin.

Yes it's stock HSF by Intel and I installed it by myself. I didn't do anything to the thermal compund from the stock. I installed the CPU and place the HSF.

I'm using onboard VGA, I only have 1 SATA Hdd, and 1 CD writer.
I think the mobo temp is not so high coz I lived in Indonesia (which is hot), and no air-conditioning. But the CPU temp is high.
April 5, 2006 1:24:39 PM

Quote:
coz I lived in Indonesia (which is hot), and no air-conditioning


8O , no wonder. I guess you saw my room temp at 70-74F. I have A/C but not used at the momment, since it is kinda still winterish, but actually Spring time.

How warm is the room get where you run the PC? I'm guessing around 80F?

I'm also guessing, if you did get a big copper heatsink, it may help some. Hard to say since your temps are 58-62C CPU idle. Can't image what it does under full load.

What I've noticed with my zalman 7700, I didn't see too much of a difference idle, but I did notice the load temps. Though, I am on a northwood core rather PD805. (lol and in a 70F room)

So, bigger heatsink is what I'd advice. Maybe your intel stock HSF may have been better then my intel stock HSF, since mine was all aluminum. I noticed some intel are made with some copper.

To give you an idea what the 7700 (918 grams copper) did for me:

stock vs zalman:

stock: 2.66@2.90ghz
idle - 41-44C
load - 63-65C

zalman: 2.66@2.90ghz
idle - 39-43C
load - 49-53C

Also I kinda modded my airflow to help move the air better in my case. Only thing that may be a pain for you to get a zalman, is you may need to take the MB out to install the back plate.
April 5, 2006 3:18:36 PM

I just tried to reinstall the HSF, and guess what? Intel's thermal compound is more like glue than thermal compound. My HSF sticked with the CPU, I was shocked hearing the "kkrrrkkk" sound :? when I pulled the HSF. I just noticed that it's true there's some copper material on my HSF, but it's only on the surface that touch the CPU. :( 

I never used Fahrenheit, luckily there's a function in Ms Excel, so I think it's around 83F here. :?

58-62C was the temp when I turned on the CPU Fan Control, now I turn it off and my CPU temp now drops to 50-53C with 3700rpm HSF.

I don't think I can put Zalman 7700, coz I there's only around 3cm between my current HSF and PSU. I was wondering how could the motherboard handle Zalman CNPS9500? :?:
April 5, 2006 4:22:08 PM

Ahh... great. At least you got idle temps down. That seems more about normal 50-53C considering your room temp.

Forgot about CPU Fan Control, I usually have fans run at full speed. :oops: 

Ya, I figured you have the better stock one, and ya have to be careful taking off the HS when the compound has cured (depending on the type used). Usually if you twist 1st, you break the bond between the HSF and the CPU. Then you can pull it up, but some installions may make it hard to twist 1st.

My room will get 80-82F in the summer when the A/C is off, and goes by a different room temp. I guess I'll see how well my system stays cooler with the Zalmans.

The 9500 might be better since it points the fan to force air to the rear exhaust fans and draws heat farther away from the MB, just a lil more expensive to get.

The 7700 is quite big, I have a pic to show ya what room clearance I have:



So it might be a very tight fit, or just won't fit at all.
April 5, 2006 5:11:51 PM

Quote:
Ahh... great. At least you got idle temps down. That seems more about normal 50-53C considering your room temp.

Forgot about CPU Fan Control, I usually have fans run at full speed. :oops: 

Ya, I figured you have the better stock one, and ya have to be careful taking off the HS when the compound has cured (depending on the type used). Usually if you twist 1st, you break the bond between the HSF and the CPU. Then you can pull it up, but some installions may make it hard to twist 1st.

My room will get 80-82F in the summer when the A/C is off, and goes by a different room temp. I guess I'll see how well my system stays cooler with the Zalmans.

The 9500 might be better since it points the fan to force air to the rear exhaust fans and draws heat farther away from the MB, just a lil more expensive to get.

The 7700 is quite big, I have a pic to show ya what room clearance I have:



So it might be a very tight fit, or just won't fit at all.



emm Grimmy , looks like your setup -cooling setup is kinda bad

looks like your "exhuast" fans in the back of your case r the wrong way

u dont want hot air staying in your case u need to get that hot air out


i suggest u turn those antec fans around

=]
April 5, 2006 5:23:55 PM

Yes, I purposely put them in reverse. Believe it or not, I get better cooling on the CPU, with a sacrifice of 2-4+C on the MB temp.

The 2 exhaust act like intakes. The Zalman can get cooler air from the rear, as well as the PSU (has bottom fan as well as rear)

The 2 intakes in the front of the case are now exhausts. ( yes I feel warm air coming out the front)

I have a piece of cardboard in the back of the outside case to keep warm air from the PSU to be sucked back into the rear intake (exhaust, gawd that confusing to discribe)

So, airflow on my case is running backwards. :lol: 

You made an exllecent observation though :wink:

This is basically my results:

My Thread on Zalman 7700

I descible temps with correct airflow, and then reverse.

Edit: Also my AS5 hasn't totally cured yet... not sure how much of the 200 hours is left.
April 6, 2006 12:53:13 PM

Errr.... Zalman 7700 cost around $55 in my country, that's quite a money to me. I'm looking for something around $30-35? :?
BTW I installed my rear fan as you did Grimmy, and with the case opened. If I closed the case, my mobo temp raised to 45C.
So you have 4 fan in your case? 8O Wow, I wonder how noisy they are.
BTW how about Hdd temp? My Seagate 80GB 7200rpm SATA II is 42C. Is that hot?
April 6, 2006 1:21:49 PM

Yes, the 7700 Zalman is a lil expensive, I got mine for 48.99 free 3 day shipping. I could have got it for 44 bucks from another site. Though, that other 9500 Zalman is really expensive. NewEgg had it for 60 bucks, CompUSA had it for 80 bucks. That was why I just jumped on the 48.99 w/free shipping. :lol: 

I guess it would be somewhat harder to get a good price for it at where your at. Heh, I would hate to know how much it would be for you to get the 9500.

There might be another alternative or better solution that maybe cheaper, though I'm not sure what site you use to buy PC parts.

Yes, my main XP PC actually has 5 80mm fans, the side has one. Also has a slot fan under the VGA card, which has a Zalman VF700 92mm fan, and the PSU has 2 (intake/exhaust). I'm not too bothered by the noise of the fans, since I'm hard of hearing anyways. :lol: 

Plus I have 2 other PC running that has fans as well, so my room is filled with fan buzzing. I'm used to it, plus I use headphones every now and then.

So your running the fans like I am? Using the rear as an intake, rather then exhaust? If the exhaust fan is taking in hot air from the PSU, that might be bad. Like I mentioned, I tried keeping hot air from going back in. I usually put my hand in spaces of the case to figure out hot spots to see if I can get a fan to remove or push hot air out. Since the rear exhaust fan is an intake, do you have another fan to help push it out in the front? that may help get temps down on the MB.

Also, my room has a ceiling fan, so I take note on how the air is pushed around my room. So if it is set to push air up, the walls would have a downward force of air, which my pc sits close to the wall. So that is why I had card board between the PSU exhaust, and my exhaust fan as an intake.

The HD temp on my SATA is 25C and doesn't seem to change much. My linux HD temp was 26C but went up to 27C just now. Though, I'm not totally sure if they are correct temp readings for the HD. I'm just assuming it is.

40C for you HD would be a lil toasty for it. Might want to be sure it is the HD temp. I'd unmount it from the case and try running it outside the case to see if temps go down. Then if it does, try to relocate it to somewhere cooler in the case, or think of a way to get air going for it, which does sound like you don't have airflow in the front.
April 6, 2006 4:03:39 PM

Didn't realize how much I typed in the above post.

Well, looks like my room hit 80F this morning, was warm outside, 74F. To give you an idea what the temps are going for me now:

P4 2.66@2.960 XP Home
Full CPU load folding: 54-55C
Case: 35-36C
HD: 25C <-not too sure about that one :?

Linux FC5 AMD Thunderbird 1 ghz
Full CPU load folding: 57-58C
Case: 35C
HD: 27C <-not too sure about that one either :lol: 

Linux FC5 PII 400
Full CPU load folding: 49C
Case: 32C
HD: N/A

Linux FC5 PIII 800
CPU load folding: N/A <-- can't seem to bring this up :cry: 
Case: 35C
HD: NA

Running 3 PC in one room.... gets pretty warm 8O
Other PII 400 is running in another room... heh
**on a side note, these systems have been running over 24 hours.

Edit: looks like it might even get a lil warmer today too.. might need to turn on AC or turn off folding :oops: 

Edit: I did stumble on this link from reading another post:

10 Mamoth HSF

Those are benchies (almost a year ago) for different types of models you could look at, and price.
April 8, 2006 6:40:33 AM

Zalman 9500 cost around $75 here. I'm interested in Thermaltake Mini Typhoon, but it's not sold here yet. The retailer offered me Blue ORB II $35, Silent 775 $28 and Polo 735 $32.
Polo 735 has more copper than Silent 775, but Silent 775 has heat pipe. Which on is better? I don't think Blue ORB will fit, coz that crap Intel chipet heatsink (I hate this Intel mobo).



As you can see, I have no place to put fan at the front, I was thinking to put it above the hdd, but I'm confused where to screw it. Above the hdd there's a hole for fdd, which I don't have one, so I hope I can suck clean air from there.

Or can this stupid thought work?

I put something between the fan so the exhaust fan won't suck the new air from the fan above.

You can get the actual hdd temp using Speedfan http://www.almico.com/installspeedfan428.exe, but this freeware is not compatible with Pentium D I guess. At least I can read my hdd temp.
April 8, 2006 9:29:44 AM

I'd say the Silent 775 should do good out of all the choices, besides the Zalman 9500.

Wow.. Although, looking at those pic's, you do have definate airflow problem. In your case I even see your PSU is going to re-introduce hot air back into the case, since you are using the exhaust fans as an intake, and nothing to really push it out, and bring in cool air. So it recirculating heat, unless your some how ducting that hot air away from the rear case fans, like I have been doing.

Since you don't have fans in the front, your not really able to push air out like my case is doing (including the side to push cool air in). I suppose the side case doesn't have a fan. You should be able to find somekind of mod kit to have one put on the side, or perhaps on the very top (meaning like where the PSU is like a blow hole on a whale).

I do see holes on the bottom of your case where the HD bay is, does your case have clearance underneth it? Might be able to mout a fan there to pull air up from the bottom of the case. Can't see into your bays to really tell if you can or cannot install fans in them.

I would put the exhaust fans back to push air out, and figure out something with that bottom vent, and maybe put a side fan on at the most. I'd also get a bunch of cable ties to get those power cords organized and tucked away from the MB.

If you put your DVD/CD-Rom on the middle bay, you can use that as a shelf to rest the cables when you cable tie them. Plus you might be able to install fans to push air directly to the CPU. (looks like it is in the line of site). Just an example:

5.25 Bay Fan

I know this is for HDs, but if you don't want to drill holes into the case, this may push some air into the front of the case to the CPU. It prolly will be noisy, and will not move air as good as 80mm fan. (80mm push at least 30CFM, while those push 20CMF, RPM are bit high, but they are small).

And if you go with that idea, you might want to get the IDE cable that is rounded instead of flat like you have that is on your DVD/CD-Rom drive. Or if you can manage to fold that cable neatly and push/tuck it aside. I think it will at least get air in, and the exhaust will help pull it in, while the HSF takes in it.

Just try to get you to imagine a way for air to get in, and get out. That last picture you did, still introduces heat from the PSU, and may cause a vacum lock to where air isn't flowing anywhere. But if you do place something inbetween, may help (plastic). Cardboard would eventually just bend, and to keep it in place, may be a pain.
April 8, 2006 10:25:47 AM

I've got an 805 .. runs around 34C idle (overclocked to 3.4GHz at stock voltage) ... rises to high 40s loaded. This is stock HSF, case side off (six HDDs in there to keep cool). Does sound ridiculously low compared to what most find on here .. maybe I fitted the HSF wrong :lol:  In the UK so guess my room was around 20C heated.

I've just bought an Arctic Cooling Freezer 7 Pro after great experience of the same on an Opteron .. these cost about half what the Zalmans do. Do a google for reviews .. they often win comparisons on price/performance.

Link is http://www.arcticcooling.com/cpu2.php?idx=79&disc= ... the guide prices sound high - mine was less than £12 before tax ($20US).

Good luck with fixing this up...
April 8, 2006 10:44:22 AM

That would work great (design wise to push out in the flow of the exhaust) for him, if he could get find it in Indonesia, or merchant that would deliver it.

Other problem he has is 83F room temps, and airflow problem in his case.
April 9, 2006 10:10:18 AM

OK thanks guys.
I got your point about that hot air from PSU grimmy. Now I'm trying to move that fan to the case side. I do have fan mounting on the case side, right in front of the CPU. But the fan sound noisier there. :( 
Now my case is :
- exhaust fan at the back
- intake fan at the side case in front of CPU
- put a piece of paper to ensure the clean air go directly to HSF instead of being sucked by exhaust fan at the back.
I manage to keep the case temp to 40C in closed condition (usually 45C closed), but the CPU seems to be hotter coz the CPU fan is 4500rpm (CPU temp stays 52C).

FYI, the upper fan in the pic has higher RPM than the lower. The lower fan is only around 1600rpm. I haven't make any arrangement to my cables, since I still plug n unplug here n there. :?

I think those holes at the bottom are speaker holes, coz they're only 5x5 4cm I guess. I've checked that 5.25 Bay Fan, looks like it's gonna be very noisy with 6500rpm. I'll skip that one.

@gagaga :
8O Wow it's amazing only 34C. Even your room temp is 8C lower, still 34C compared to my 52C is amazing 8O . Do you use stock thermal paste as well? My friend's Northwood 2.6Ghz is 43C. Are you sure it's CPU temp?

Yes Arctic Cooling Freezer Pro 7 is very interesting, I was just about to ask about that. Now I'm focusing on Thermaltake Mini Typhoon and Arctic Cooling Freezer Pro 7, even though I haven't found Arctic Cooling retailer here.
April 9, 2006 10:45:03 AM

Quote:
I've checked that 5.25 Bay Fan, looks like it's gonna be very noisy with 6500rpm. I'll skip that one.


Hehe, ya it would be loud, but just a thought if you didn't want to mod the case with fans (actual cutting out a hole and use a fan/grill kit). I wasn't sure if you had a side fan mount.

Nice to see you dropped some of the heat off (case wise). It makes sense that it would have a fan for the side case for side to rear airflow.

That Arctic Cooling Freezer Pro 7 would help out pretty well. They are great for the price if you can find one.
April 11, 2006 5:52:30 AM

I just checked Arctic Cooling Freezer 7, it's $38 damn expensive. They don't have Freezer 7 Pro yet. The official website said that Pro has better cooling than Freezer 7. Pro has 6 pipes and lower noise design, while Freezer 7 has 4 and bigger pipes. Check this out
They also offered me Scythe Katana Cu $33.
So what do you think? Should I wait for the Pro? Katana or Thermaltake Silent 775?
April 11, 2006 6:14:30 AM

Those all seem pretty kewl, hard to keep up on all the new coolers these days.

Not sure if we are looking at the same one:

Katana scktn-775

Tough call on all those. I think any of those you couldn't go wrong.
April 12, 2006 5:45:09 AM

You looked at Katana 775, which is only for LGA 775. I mean Katana Cu which is universal, even socket 370 can use it, and the heatsink is made of copper overall. Anyway they're the same design.
I don't understand how come Katana can also make cooling for the mobo too. The heatsink is hot coz of the heat pipe, so the air flowing through it should be hot too, don't you think?
April 12, 2006 7:58:14 PM

Quote:
You looked at Katana 775, which is only for LGA 775. I mean Katana Cu which is universal, even socket 370 can use it, and the heatsink is made of copper overall. Anyway they're the same design.
I don't understand how come Katana can also make cooling for the mobo too. The heatsink is hot coz of the heat pipe, so the air flowing through it should be hot too, don't you think?


Ah.. I see. NewEgg has it for $29.99

About what your saying of it helping to cool the MB. My 7700 CU is suppost to do the same, but it still does release heat that goes towards the MB, its suppose to disburst heat, so I don't see how it can really cool a MB. I think its just marketing talk. :lol: 

Saw the review that was in English, seems to do okay. Only thing I'm not sure if I like is the tilt it has:



I thought it was to help airflow with the case (didn't really noticed that tilt). Yes, the HS is going to dissipate heat, but pushing it at or tward the MB doesn't seem that logical to me, with that tilt it has. Unless it is to help (fan) avoid hitting the RAM dimms on different MBs.

Freezer 7 Pro seems to really sit straight, and looks good for airflow.
April 12, 2006 8:26:23 PM

have you gotton your cpu temps down?

I have an d805, overclocked to 3.4ghz with stock hsf. It goes to 58° under 2x cpu burn load for an hour it idles around 37°. I use AS5 compound. I tried the cremiquie and it was about the same.
I do have 5 case fans 2 turned low. room temps around 75°f.
April 12, 2006 8:37:44 PM

try zipzoomfly.com also sometimes they out do newegg and usually everything they sell comes with free 2 day air , but not sure about other countries.

But I would go with what these guys suggested and if you can get that Zalman 9500 that is going to be one of the best investments you will make , I love mine. :wink:
April 13, 2006 4:20:03 AM

Quote:
Ahh... great. At least you got idle temps down. That seems more about normal 50-53C considering your room temp.

Forgot about CPU Fan Control, I usually have fans run at full speed. :oops: 

Ya, I figured you have the better stock one, and ya have to be careful taking off the HS when the compound has cured (depending on the type used). Usually if you twist 1st, you break the bond between the HSF and the CPU. Then you can pull it up, but some installions may make it hard to twist 1st.

My room will get 80-82F in the summer when the A/C is off, and goes by a different room temp. I guess I'll see how well my system stays cooler with the Zalmans.

The 9500 might be better since it points the fan to force air to the rear exhaust fans and draws heat farther away from the MB, just a lil more expensive to get.

The 7700 is quite big, I have a pic to show ya what room clearance I have:



So it might be a very tight fit, or just won't fit at all.


u try clearing up the clutter , u have a load of wires and it was hard for to fix all the mess i "had" =]



=0
April 13, 2006 6:03:47 AM

Quote:
try zipzoomfly.com also sometimes they out do newegg and usually everything they sell comes with free 2 day air , but not sure about other countries.

But I would go with what these guys suggested and if you can get that Zalman 9500 that is going to be one of the best investments you will make , I love mine. :wink:



I don't think zipzomfly nor newegg will ship their items to Indonesia, even if they would, I think it gonna cost much. Which one did you mean "these guys suggested"?
Neither Zalman 9500 nor 7700 will fit to my mobo, you see the chipset HSF is right under the CPU socket.

@IcBlUsCrn :
Great for you. Now I stuck with D945GNTL which doesn't support OC, and I still got this heat problem.

@grimmy :
So you think I should buy Freezer 7? Freezer 7 Pro hasn't arrived here yet.
April 13, 2006 11:09:37 AM

Quote:

u try clearing up the clutter , u have a load of wires and it was hard for to fix all the mess i "had" =]



=0


:lol:  . o O (why?)

Err, you don't look like you have much in that rig. I admit it looks good.

I have allot of cords to deal with since most are power for the fans. I'm not concerned with looks, since you can't see into my PC. Plus the rails you see going around, are cable tied to the case.

I'm pretty sure that my airflow is not being hindered by the way I have everything strung up. I mean its like a regluar heater with the airflow backwards. So making it look any more pretty, is not going to help me in any way.
April 13, 2006 11:16:53 AM

I was only saying the freezer pro sits straight, rather then at a tilt like the Katana.

The freezer pro 7 just kinda reminds me of the zalman 9500 sits straight up from the motherboard, and helps push the air to the exhaust fans.

But because of what your able to buy, just hard to recommend what would be best for you. I think the ones you've found would do fine for your PD805.
April 17, 2006 5:44:57 AM

I just bought Scythe Katana last Saturday, $29 for the aluminium fin and $36 for the full copper. I pick the aluminium one, prefer to save that $7 (only 1-2C cooler what I got from Googling). Arctic Cooling Freezer 7 is $40 rarely sold.

At first I was so excited, but what I get is the same CPU temp, and HIGHER :evil:  mobo temp! For the first time my mobo reached 50C (full load) with the case opened. With my stock HSF my mobo never reached 46C even in closed case. Well, it was a hot Sunday, maybe around 35C, but the case was opened and I got fan (for me, my PC got some air too).

On idle, mobo temp is 45C. CPU temp looks like a little bit cooler on full load, but it's the same on idle. Then I tried to blow some air to the chipset heatsink (holding the fan with my hand, Katana is very big I can't put fan on the case wall). Guess what, both CPU and mobo temps are cooling down. CPU down to 49C (from 50C) and mobo to 39C. But the mobo temp is unstable, it varies from 39C to 44C.

My conclusion is Katana spreads hot air to the mobo. I need to put a fan that blow clean air at the front, unfortunately my case didn't provide that.

BTW, Scythe recommends that Katana should positioned upward (the 70 degree tilt), does anybody know why? I positioned the tilt backward, so that the hot air sucked by exhaust fan at the back.
I wonder if that would cool down CPU. Changing tilt direction means taking off the mobo, such a complex installation.
April 17, 2006 9:27:01 AM

Quote:
I just bought Scythe Katana last Saturday, $29 for the aluminium fin and $36 for the full copper. I pick the aluminium one, prefer to save that $7 (only 1-2C cooler what I got from Googling). Arctic Cooling Freezer 7 is $40 rarely sold.

At first I was so excited, but what I get is the same CPU temp, and HIGHER :evil:  mobo temp! For the first time my mobo reached 50C (full load) with the case opened. With my stock HSF my mobo never reached 46C even in closed case. Well, it was a hot Sunday, maybe around 35C, but the case was opened and I got fan (for me, my PC got some air too).

On idle, mobo temp is 45C. CPU temp looks like a little bit cooler on full load, but it's the same on idle. Then I tried to blow some air to the chipset heatsink (holding the fan with my hand, Katana is very big I can't put fan on the case wall). Guess what, both CPU and mobo temps are cooling down. CPU down to 49C (from 50C) and mobo to 39C. But the mobo temp is unstable, it varies from 39C to 44C.

My conclusion is Katana spreads hot air to the mobo. I need to put a fan that blow clean air at the front, unfortunately my case didn't provide that.

BTW, Scythe recommends that Katana should positioned upward (the 70 degree tilt), does anybody know why? I positioned the tilt backward, so that the hot air sucked by exhaust fan at the back.
I wonder if that would cool down CPU. Changing tilt direction means taking off the mobo, such a complex installation.


Well.. only advice since you got that Katana (Like I said before, I wasn't too sure about the tilt, I was for the freezer Pro 7):

Is to have it point up towards the PSU (lol like you mentioned in your post), and tilted so it si pointed twards the MB. I think that would be the max performance you can get from it. (By the instructions recommended way)



It also helps since you said you have a side fan for the case, so I can image the side fan pushing some air to the Katana.

I'd still use the exhaust fans to remove/pull air out. The PSU will have to deal with hotter air from that katana.

Perhaps mounting a fan on the HS for the northbridge could help. I noticed you do have a big HS below your CPU. Guess its too bad the PSU doesn't have a bottom intake from the last pics you had for your MB.

I can also imagine its going to take allot of tinkering time to get the best results in your situation.

Hope that helps.
April 17, 2006 3:06:15 PM

@SupremeLaw:
(5) Thanx, now I'm using one rear fan as exhaust.
(9) I used to do that with Intel stock HSF, but now I'm using Katana that's tall enough I can't put side fan.
(10) There's not enough holes on my case.
(11) Thanx, I'll check it later.
(12)-(14) I've spent enough money, so I'll be looking other free solution with what I've got.

@grimmy:
Well I was saving $10 buying this Katana.
I still don't understand, why upward? :?

Some good news is that I managed to "hang" my 8cm fan above my Hdd. "hang" means the fan is not screwed to the case, but it is tied by twist tie (a long one). The fan doesn't touch the case at all. (I should patent this one 8) j/k)


As a result my CPU and System Zone 2 temps are about 2C lower. :D 
But System Zone 1 temp is still high, I'm guessing it's because of Katana's tilt. Another work to do. :?
I'll post some pics later, don't have my dig cam here.
April 18, 2006 1:09:28 PM

Quote:
@grimmy:
Well I was saving $10 buying this Katana.
I still don't understand, why upward? Confused


Thats fine.. I'm all in for saving cash :D 

Simply because I think its design helps the flow of the heat, with both pipes going up, rather having one side (one pipe) higher then the other.

Even though it would still be pointed at the MB, I don't see anything there that would be effected by heat, execpt the PSU. The PSU would basically be eating hot air from the Katana. Depending on where your side case fan is, that would help the Katana push air from the side fan to help cool the CPU.

But, like I said, it will take some time to figure/tweak out what would work for the best in your situtation.

EDIT:

Not too sure, but I've read/heard that the HS with pipes may have a small amout of fluid that helps transfer heat from the bottom to the top. So if one pipe is not pointed upwards, it may effect some cooling ablity.

That would explain why that Katana has a 70 degree tilt, for MB that stand vertical, rather then horizontal (non-tower PC) desktop.
April 19, 2006 11:19:36 AM

OK, I think I've learned something. The fins in stock HSF help to cool other components near the socket. This Katana doesn't despite the 70 degree tilt. And Katana moves hot air from CPU, stock HSF try to cool down HSF and the air from HSF is not as hot as Katana's.

When I touch them, they're very hot, even hotter than the socket. I think one of the mobo temp sensor is located there, that's why my System Zone Temp 1 is hotter than Zone 2. I think Zone 2 is located near Northbridge chipset.

I'm afraid if I positioned Katana upward will heat my PSU badly. It's only 2 cm from Katana.
April 19, 2006 11:40:45 AM

Again... I still think about the 70 degree tilt. I do believe it has a specific design reason for it, and why the instructions recommend having it set that way.

And the more I think about the MB in a vertical postion just enforces that reason, that the heat pipes need to be faced upwards.

I suggest give it a try to at least see the result, but if its too much of a pain, then I guess you will never know.

I think the PSU will be okay, since it bascially takes in hot air regardless, if you think about it. Just take your time in trying to figure out or test what can be done to make it cooler.

I mean, I reversed my airflow in my case for example. Its prolly something no one would really do/consider, but I like the results it has done for me at least. (and I was.. bored)
April 21, 2006 5:52:57 AM

I just checked my f*ckin Intel mobo manual, this is what I got :


Katana doesn't blow any air to A area, where the voltage regulator is located. I think that's why System Zone 1 is very hot.
Looks like Katana doesn't suite my mobo. I might switch back to stock HSF.
April 21, 2006 9:53:31 AM

Voltage regulators are going to get pretty hot regardless.

Even my old PIII 800mhz system has hot voltage regulators.

Your stock HSF still blows warm air around, since its disbursing heat from the CPU. I realize you said its hotter with the katana, but then the aiflow is not ciruclar (blows air out in all directions) like the stock HSF, while the katana is more focus right on that area.

So, I guess your not even going to try having it faced up?

Heres a quote to take note of, and think about that katana having that 70 degree tilt.:

Quote:
What are heat pipes?
A heat pipe is a device has an extremely high thermal conductivity, and is used to transport heat. In order to achieve this, heat pipes take advantage of simple physical effects:
As a liquid evaporates, energy - in the form of heat - must be taken from the environment. Therefore, an evaporating liquid will cool the surrounding area. This is how a heat pipe effectively cools the heat source. However, this doesn't get rid of the heat; heat is just transported with the vapor. At the target side for heat transport, the heat pipe must be cooled, for example using a heatsink. Here, the inverse effect takes place: The liquid condenses, and therefore emits heat.

Using these effects, it is possible to build heat pipes that have a thermal conductivity that is many thousand times higher than a copper piece of the same size. Note that unlike Peltier elements, a heat pipe does not consume energy or produce heat itself. It is also not possible to cool a device below ambient temperature using a heat pipe.


This would be the only reason why the directions recommend it having faced upwards, where the liquid it may have to vaporize when heated at the bottom, then carried up to the tips to be cooled/condensed to flow back down.
April 23, 2006 1:00:28 PM

Yeah we shared the same reading grimmy, I've spent my lunch time reading articles about heat pipe. I've tried positioned it upward, it doesn't make any change, so I positioned back to the rear, rescuing my PSU.

I managed to lower my System Zone 1 temp, putting a fan under my CD writer, blowing air from outside to HSF while at the same time cooling the right side of the socket too. But I'm still afraid about the VR, since it's located at the left side of the socket. :( 

BTW I've checked my friends Athlon 3000, he has the same case temp as I do, so I'm not so worried about the 39-42C. But amazingly AMD is so cool, only 30C. It's 20C less than mine. 8O
April 23, 2006 9:49:05 PM

Well, AMD will run cooler because of lower vcore, and slower CPU speeds. Of course that doesn't mean much since AMD are using a better archetecture then intels to make up for lessor speed.

And, you should only take in consideration of what your MB is telling you as far as temp, not that it is accurate.

What I mean by that, even though it isn't accurate, but by changing out parts to make things run cooler, you should see a difference.

You could take that P-D and put it in another MB and get a different temp reading using the same HSF.

Like for example an Asus will report temps around 14C cooler then an Abit MB. Not all MB use the same process to determine CPU temps.

Anyhoo... Sorry to hear it won't run cooler in the upwrite position.

My room has been hitting in the 80+F, so my temps are hitting high, so it pretty much unavoidable, to run cooler. Running 3 pcs 24/7 might be a lil absurd when I just wanted to help with folding.. hehe.
May 3, 2006 3:10:33 AM

I have the same processer and mine is runs anywhere between 25C to 27C with the Arctic-cooler 7 pro.

Pentium D 805@ 2.66
Foxconn mobo
1 G Corsair memory
6600 GT 256M
May 3, 2006 6:01:51 AM

How about your mobo and room temperature? My room temp can reach 33C.
May 11, 2006 11:55:37 PM

My mobo runs at 30C as far as room temp goes, I don't have control over the heating were I live. The cooling in your pc case also makes a big diffrence. I have no Idea who the maker is of my case, but it's a full size case and here's what the inside looks like

Minus the tube.
May 12, 2006 12:24:32 AM

did you buy the processor installed or did you do it, if you did it did you take the silly little plastic tape off the heat sink myself I take off the crap the company puts on and use my own but then again I'm water cooled with no heatsink paste at all dielectric I used.
May 12, 2006 12:29:59 AM


War of pic's
May 12, 2006 12:33:47 AM

The temperature that influences the most or is the main factor, is room temp. (air cooling wise)

For example Temps I recently experienced:

Room temp 88F

Case Temp 38-39C
CPU Temp - Folding 58-59C

Room Temp 67F

Case Temp 25-26C
CPU Temp - Folding 47C

So, yes it good to have a PC Case with good airflow, but if your room temps are in the 80+'s F, your going to have problems in keeping it cool. The only other thing is to switch to water cooling when AC is not available.

I also have 2 other PC's folding in my room, and basically had the close to or same PC Temp Case reading, 38-39C. My Athlon Tbird actually hit 62C when my room temp was 88F. It dropped to 48-49C when the room temp hit 67F, Case temp was around 24-25C. And the other thing is, it has very poor air flow, but not as bad as my P3 slot 1 800mzh system, which I forgot to check temps on. :lol: 
May 12, 2006 12:47:56 AM

God dam those slot 1 were hot I had one too I had more fans in the system and still was running in the 70 ish
May 12, 2006 1:54:45 AM

Actually my P3 800mhz system seems to do okay, from what the reading tells.

Room temp now is 76F.

Sensor readings P3 800mhz slot 1:

Case 34C
CPU - folding 38-39C

But then the sensor is placed differently (diode is not in core), so it is more far off on temp accuracy. So I guess (not sure) if you add 4-6C to that figure, may be a safe guess (42-45C).
May 12, 2006 2:25:52 AM

I just lowered my temps by 3-4C by moving my PC back a bit (I have one of those enclosed desks) but I guess the hot air was getting trapped inside with the PC so now it vents out of the back :)  now getting about 52/53C under load. Cost involved reading this thread and about 20 seconds of work lol
May 12, 2006 9:34:11 AM

suggestion dude if you cut a hole in the top of the case and put a 120mil fan on top this will really help lots, when I had a case I did that and it really help with the heat. cut the hole between the psu and cdrom I used a skill saw to cut the hole. The fan must be sucking the air out rather than blowing in.
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