Sign in with
Sign up | Sign in
Your question

Athlon 64 X2, 4800+ overheating?

Last response: in CPUs
Share
March 20, 2008 10:24:06 PM

I recently bought this for socket AM2, 65W. I suppose I was a fool to think the stock HSF could be trusted. It's a small, aluminium piece of junk with a 2900 RPM fan. I don't even think the fins are skived. Anyway...

I used the default thermal pad/tape that was already on the HSF, and to my alarm, I saw the temp approach 80 C while under stress. And this is at normal speed. I only let it run like this briefly once I discovered it (probably 10 mins gross, at max). But even while idle on my desktop, it could reach 70 or more.

I quickly decided something needed to be done about this. So I ordered an Arctic Cooling Freezer 64 Pro, and Arctic Silver 5 grease. Now starting temp is around 50 C, with sustained idle temp between 55 and 65 C Under full load, I've seen it climb to 71 C

I looked up AMD's PDF on these, and they list a max temp between 68 and 70 generally. If I let it run at 71ish long term, am I at risk for damage? Also, is there any way to determine if there has been physical damage, short of a complete burnout, or frequent crashing/lockups? Example : could previously absent frame rate loss in games be an indication?

I guess the only other thing... could the temp monitor on my motherboard be providing inaccurate readings? I have a Biostar based on Via K8M800 chipset, with a 20 pin power connector. I'm getting my readings from ITE Smart Guardian software (and the BIOS reading are usually similar).

I'm not too fond of the Arctic for a couple of other reasons... the sink doesn't touch the entire core (it leaves about 1 or so milimeter of space on at least one side). It's very big and heavy, and the fan RPM is only 2300 max. I'm considering getting either a ZeroTherm BTF90, or a Zalman CNPS7700. Any advice on either of these 2? I'm pretty sure the ZeroTherm will fit in my case.

Someone asked me how my case ventilation was, so I'll post this info with something else that may be pertinent too. Remaining system specs:

EnerMax Noisetaker EG475P-VE (additional 12 volt, 4 pin connector plugged in)
4000 RPM system exhaust blower in PCI back panel
Vantec 80mm case fan under PSU

Honestly, most of the air being blown out of the case isn't that hot - in fact it's barely warm.

What's going on here? Do other people's 4800's get this hot?
a b à CPUs
March 21, 2008 12:40:43 AM

I have a fan similar to the 120mm all copper Zalman "mushroom" (CNPS7700) on my FX-60. It keeps it VERY cool. I can't remember the temps right now, but I think that they were under 50C at max load.

Still, that's surprising that your 4800 is so hot, considering it is a 65W part and mine is a 130W! Do you have good airflow through the case? I've never used the stock cooler (the one for my old X1 3800 is still in the box), but I was under the impression they were at least decent.

I doubt that those temps would kill your processor, but I would not feel comfortable with them and would probably get a cheap aftermarket cooler, such as this one (the one I have, it is a rip off the Zalman):

http://www.tigerdirect.com/applications/SearchTools/ite...

This one will work on 939's for sure. Is yours a 939 or AM2?
March 21, 2008 1:17:13 AM

It's an AM2 Case ventilation is fine. I think I'm going to go with the ZeroTherm I just hope I haven't done any damage already. I probably won't get the new heatsink until next week. And I can't stay off my PC for too long... I run my business from it
Related resources
March 21, 2008 1:20:57 AM

Well, I had an old A64 3500+, and I think it was the sensor on an old ECS board. Reported idle and max temps around yours (I even went to water!). Tossed out the water 'cause it was a hassle, and then the motherboard died. Replaced it, and I was getting idle of 30c, max at about 45c. Dunno if that might be your problem, though. :/ 
March 21, 2008 2:34:57 AM

Man, unsure why you'd have that problem, I've got mine with a stock heatsink/fan, I'm running a 5200 though, and big side fan, mine idles under 30 degrees.
March 21, 2008 3:02:58 AM

I think you found your own problem when you stated the heat sink didn't mount flush on the cpu. Something is wrong with your HSF mounting.
March 21, 2008 3:10:07 AM

I have the same motherboard and my 4200+ X2 is also around 65 degrees and many other users claimed that the CPU is supposed to be cool. I think that it's the motherboard temperature and not the CPU's according to hardware monitor. Use core temp to check your temp. Mine show that the cores are around 15 idle and 30 under load.
P.S. what kind of AGP card do you use?
March 21, 2008 3:40:20 AM

Yeah, guess that makes me an older timer, huh? Using AGP. I made a significant investment in a BFG, GeForce 7800 GS, 256MB. Over $300. It is OCed stock.

See the thing is, I'm kind of reluctant to buy new technology I'm not terribly familiar with. I haven't been on the main Tom's site in a long time - so I'm behind. Some time back, I kind of saw PCI Express as unproven technology. In truth, it isn't a slot that is dedicated to graphics cards, like AGP. As I understand, it can accept sound cards, NICs, etc...

See, that's the thing. I didn't want to get a Biostar, but that was the only thing NewEgg still had that was compitable with my current system. They had an MSI based on Via K8M800, but it had a 24 pin power connector, whereas my EnerMax PSU is 20 pin. I really wanted to get an SiS chipset, but it seems AMD is making good quality motherboards now.

I've learned that in recent years, processors are becoming more essential to PC gaming that video cards. Where with most games, you can tone down in game options to compensate for older cards, there's not much you can do about CPU processing (AI, path finding threads, etc...). Upgrading video cards now seems only necessary if the card needs a next generation feature via hardware routes (ie DirectX 10 acceleration, pixel shading 4.0, etc...). Of course, software routes really slow things down, but they still allow the game to play.

As for me not mounting the HSF correctly - no that's not true. It is flat against the core... just on 2 of the sides, it doesn't reach the tip of the edge. The clips are in exact place, and I know before I installed it, that it didn't cover the entire core. That was also only on this Arctic Cooling, not the stock HSF.

Maybe I can just hope the motherboard reading are inaccurate - or perhaps just elevated?
March 21, 2008 12:23:23 PM

Hey guys, one thing I've noticed is that the Vcore voltage appears to be a little low. I have it set on auto in the BIOS. The readings are hovering around 1.25V While the listed voltage is supposed to be 1.325 minimum, and possibly as high as 1.4 Could this be causing the problem? I did wonder if a 475 watt PSU would be enough.
March 21, 2008 12:39:14 PM

That is really high. Does it ever crash or anything? What happens if you run Prime95?

Honestly, my guess is that the temp sensor is mest up. If it isn't, though, and you are really getting that high, I would return/exchange it for a new CPU and MObo.
March 21, 2008 1:03:24 PM

Hasn't crashed so far. But... why would the temp sensor be displaying artificially high readings? Just bad design by Biostar or Via? Or perhaps just a flaw with my particular board? One thing I did find peculiar... there was no black plastic guard over the CPU socket on the board (and there clearly is in the manual). I bought it new, retail from NewEgg - so I know it hasn't had a previous owner. The I/O plate and other accessories were unopened, still inside plastic bags that can't be resealed.

Maybe the sensor just got dinged around a bit during shipping or something? If so, that appears to be the only thing malfunctioning - as the rest of the board is fine (though my hard drive is running a little slowly)

If this is the case though, I have no way of knowing what the actual temp is. Any way to get another sensor in there, or something equivalent?
March 21, 2008 1:13:33 PM

Wow, I've owned the x2-4200 and the x2 5600, the 4200 run about 28c, and the 5600 ran about 34 celcius of stock fans, when i replaced the stock fan with the arctic cooling 64fan, my temps wnt to about 28c on the 5600, so something your doing is wrong, I'd clean off everything and start over, the temps are way hot.
March 21, 2008 1:39:42 PM

That's a bit high, I have an A64 X2 5600 running at 3015Mhz (215x14).

I get 38 degrees on stock HSF, and at max, mine's at 56 Celsius, by running Folding@Home on SMP clients.

Well, in my experience, I get that temperatures more naturally at Pentium 4's, and when they get to that temperatures, that are so hot to the touch I am physically unable to touch the heatsink for more than 3 seconds, while I can touch the 56 degrees A64 temperature.....
March 21, 2008 7:39:12 PM

Gene over at AMD says it is quite possible I could be getting inaccurate readings, especially if I have a Brisbane core (ditto). He said either that or the MB's diode sensor could be defective - or not translating temps properly. But if I really want to be sure, I should put my finger against the heatsink and see how hot it is. If it burns me, the temps might accurate - if it is only lukewarm, then it is definitely a prob with the readings.

Stangely enough, he discouraged the use of silver thermal compounds because of their "high electrical conductivity" He suggested ceramic or silicone instead.
a b à CPUs
March 21, 2008 11:38:14 PM

Well, the silver compounds are fine as long as you are careful and don't get any on the MB or processor pins.

I'd do the touch test like he suggests. The more I read your posts, the more I think that it just an inaccurate reading. Those temps are insane if true.

Here's another test for ya. Turn the computer off fo an hour or two, then turn it on and go straight into BIOS. If it reads 70-80C in there already, then you know it is just a misreading.
March 22, 2008 12:23:44 AM

I've never seen it below 50 C in the BIOS. Even after my tower has been turned off (mind you, turned OFF, not sleep mode) over night for several hours. Same thing for the ITE software.

Maybe some not so bright manufacturers accidently label F degrees and C degrees?
March 22, 2008 1:03:41 AM

First thing, see if taking the side off affects temps. If it does, you need to balance air in + air out.
Are you sure you tightened down the hsf all the way? Can you rotate it at all?
The old finger on the hs is a good test. I borrow an IR temp sensor, but a finger is okay.
If you cant rotate the hsf and the hs is not too hot to the touch, you probably just have a poor sensor calibration.
It's important to remember that a chip will get flakey before it gets damaged. I use F@H to check stability. If it can run @ 100% for hours on end, your temps are fine.
March 22, 2008 1:21:54 AM

Where can I find an IR temp sensor, and what do you mean by flakely? Also, what's F@H?

Maybe one other thing that contributes to the current theory of inaccurate readings... For those 10 mins I did run it using the stock HSF, and it was reading damn near 80 - even if that didn't result in permanent damage, would it not have at least crashed the proggies I was running to crash? Because they didn't.

My Vantec case fan is directly behind the heatsink. The air is it blowing out is in the same direction. I'd say the air is a little warm at worst, but that's it. Shoot, the air my PSU is blowing out is warmer than that from the case.
a b à CPUs
March 22, 2008 1:27:16 AM

Hehe, that would be funny if that was F instead of C (its a little low to be that I think, though). It wouldn't be the first time units screwed stuff up.
March 22, 2008 2:12:03 AM

Rathine said:
Where can I find an IR temp sensor, and what do you mean by flakely? Also, what's F@H?

Maybe one other thing that contributes to the current theory of inaccurate readings... For those 10 mins I did run it using the stock HSF, and it was reading damn near 80 - even if that didn't result in permanent damage, would it not have at least crashed the proggies I was running to crash? Because they didn't.

My Vantec case fan is directly behind the heatsink. The air is it blowing out is in the same direction. I'd say the air is a little warm at worst, but that's it. Shoot, the air my PSU is blowing out is warmer than that from the case.
I just grab an IR thermal unit from work. One that I use sometimes, costs ~$5000, but some of the others are <$100. Know anyone at a large electrical maintenance company? Some tool rental places might carry them as well.
By flakey, I mean you get errors.
F@H is folding @ home, it's a distributed computing program. It would take too long to explain more, just google (yahoo) it. Any error at all will cause the program to restart, so it's a great stability program.
Quote:
would it not have at least crashed the proggies I was running to crash? Because they didn't.
That may be a good sign, but a lot of today's progs are fairly forgiving. I use F@H, but Sysoft Sandra Burn-in works, as does Prime 95, and a bunch of others, because they respond quicklyto instability, and put a lot of stress on the chip.

March 22, 2008 2:38:35 AM

Just did the Prime 95 torture test. It was hovering between 69 and 71 C I ran it for 10 mins, and it came back with 0 errors and 0 warnings. I assume this is a good indication of both stability, and inaccurate thermal readings? Now I'm gonna go try F@H
March 22, 2008 4:55:40 AM

You should leave your stability prog running a lot longer than that.
Start with an hour, then work up to a day.
If it were me, I'd OC till the temp started to rise drasticly, and figure out the point of instability. That would tell me how close I was running to max thermal.
March 22, 2008 5:19:14 AM

I tried folding at home too. No probs. I'm not sure I want to risk OCing till I find out exactly what's going on here. I ordered a Zalman 9500A If that and Arctic Silver 5 don't bring it down quite significantly; then it is clearly obvious I am getting unreliably high temp readings. Which sucks because if I did decide to OC, I'd have no way of knowing if I was going to high.

Furthermore, if the fan ever dies, it could very well overheat - seeing as that my video card fan is so loud I can't hear the CPU fan anyhow. The BIOS auto shutdown is only good to 70 C So if I can't get it to read below that regardless of the stress level, or whether the reading is accurate - I don't have any fail safe backup.
March 22, 2008 5:42:33 AM

I just looked up that arctic cooler. It looks nice. Is the fan on the top or bottom?
March 22, 2008 6:10:58 AM

The Arctic Cooling Freezer 64? The fan is on the side. You have to install it so the fan faces horizontally, one direction or the other (because the clip hooks are only on the top and bottom). In most cases, I'd assume you'd want it blowing out of the case. It's fairly good quality, and not very expensive... but it is a little big and heavy.

The Zalman is the same, side fan. That's one thing I read about one of the Dynatron's with a 7,000 RPM fan. It was a low profile HSF designed for servers... so it blew the air either up or down, instead of to one side. If you have a standard ATX case, I can't see any reason why you wouldn't want it to go directly out of the case, or towards your case fan.
March 22, 2008 6:59:56 AM

Oh, yes, the holddowns on your board are top and bottom.
I think the fan is not really supposed to go either way. It is only supposed to be installed on the front, so it blows through the heatsink, toward the rear. The distance between the chip and holddown is greater on the bottom of the socket, so if you can see part of the heat spreader on the bottom, it may be because your freezer is on wrong way round.
March 22, 2008 7:59:09 AM

Rathine, I presume that your mobo's probe is defective. I have X2-4800+ OCed @ 3.1 Ghz and it runs very cool. Iddle=22-24 C, and Full load(prime95) it reaches 39 C at max! I've never seen it 40+ C!! I can provide a screenshots if you wish. No chance this CPU goes to 71 C, it will catch fire. So I presume that your mobo is not reading correct temp.
a b à CPUs
March 22, 2008 2:03:54 PM

Well, that is a bummer for OCing. Is there a BIOS update out for your MoBo (I have no idea if that would help, but it may be worth a try if you feel like it).
March 22, 2008 2:46:24 PM

There's no BIOS update unfortunately. There's an update utility, but that's it.

The fan is blowing directly out the back. I actually checked and compared the size of the surface contact plate to the core before I put the silver on and installed it. It doesn't cover the entire core unfortunately - but only in one direction. Has about a milimeter of space.

Yeah, right now looks like OCing is the biggest disadvantage to this whole situation. But then again, when I bought this CPU, I was under the impression it was so powerful it wouldn't need OCing anyhow. And so far I've been correct. We'll see
March 22, 2008 3:17:19 PM

By the way, if you ever replace the mobo but want to keep the PSU with a 20 pin connector, you know they do make an adapter right? You plug your 20 pin into it, and it's got a 24 pin connection on the other end.
March 22, 2008 5:02:23 PM

Thanks for letting me know. This opens up the possibility to that MSI board.
March 22, 2008 10:27:42 PM

Rathine said:
Thanks for letting me know. This opens up the possibility to that MSI board.

Do you still have the box your psu came in? I have the same unit. It has the adaptor.
March 22, 2008 11:32:49 PM

No, there's no adaptor in the box... just a set of screws and some other unit. But all of this information has been very helpful. Guess I have some decisions to make when I get more money to spend on PC hardware. The first would be whether I want to keep this GF 7800 on the AGP bus. No point in buying an MB that has an AGP slot but no PCI express
February 26, 2009 11:18:37 AM

Dear all,

My experience with Gigabyte GA-MA69VM-S2 and AMD X2 5000+ CPU is:

1) Overheat is a process. The CPU gets hotter and turns the ambient air hotter then the CPU gest hotter again and
the spiral continues. It is necessary to cut this process from the beginning.

2) More case ventilation (4 fans, one 12x12, two throwing air in and two taking out), duct and a bigger case did not solve CPU temperature problem.

3) Changing for a better thermal paste with more conductivity (more silver) did not solve.

4) Changing for a better cooler (Buffalo HPFA - 10025) solved the problem. The CPU temperature stabilized at 38 to
39 degrees Celcius.

5) CPUID Hardware Monitor TMPIN2 is the CPU temperature (comparing with EasyTune5 from AMD) and TMPIN0 is the system (NorthBridge temperature). I guess TMPIN1 is the SouthBridge temperature.

Conclusion: The standard AMD cooler (in-a-box) was not sufficient. A better cooler was critical to cut the heating process down.

In fact before I bought a better cooler, I put the motherboard and the energy source outside the case, on the ground, and temperature did stabilize. So the better cooler is critical to remove the heating generated INSIDE the case (even inside a bigger case).

Good computing to you,

Jaques
February 26, 2009 3:11:09 PM

I have a friend with a 4800 brisbane. I know his temps stay around 40-50C with stock cooling. I think you have something else wrong with your computer. The stock cooling isn't great, but it's enough at stock speeds. If you buy a processor that can't run with a stock cooler at stock speeds, I'd suggest you return it.
May 21, 2009 9:07:25 PM

I have major problem with my 4800, it can get over boiling temp sometimes. I don't have any probs in winter when my room temp is around 13 C but now it's like 25-30 C and it gets VERY hot. I've seen >120 C readings on my bios thermometer after forced high-temp shutdown. Maybe sensor is just broken b/c the computer isn't very hot when I touch it and processor doesn't show symptoms of overheating - it'd been fried at 140 degrees C temperature.

SpeedFan charts are even more weird - after exiting a game core temp drops IMMEDIATLY from >120 to just 55 C in several seconds!

Spec:

Gigabyte S2 series MB
AMD athlon X2 4800+ (at 2515 MHz stock, without any OC)
GeForce 8600 GT (gigabyte)
stock cooling
Tracer 480W amp integrated with tower
!