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overclocking P4 3EGhz

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Last response: in Overclocking
January 19, 2006 11:04:44 PM

I'm planning too overclock my P4 3E Ghz 800Mhz FSB
Is der any way to overclock it with 1000+ FSB?
And Stable

More about : overclocking 3eghz

January 20, 2006 5:32:54 AM

would you explain it more clearly
250Mhz = 3750Mhz FSB?
I'm goin to do it manual, wer do I start?
January 20, 2006 8:01:14 AM

:)  no I'm asking the FSB
is it possible to reach 1000+ my current FSB is 800Mhz?
I'm goin to upgrade my ram soon so the DDR500 might help me in OC? right?
I'm planning to buy KINGMAX HARD-CORE series DDR500 cheaper than corsair and kingston..
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January 20, 2006 9:49:37 AM

lol this is going round in circles

(repeat what everyones saying in a diffrent way) a P4's FSB runs at (eg for FSB800) 200mhz but its effectivly 800mhz (equal to) as its QDR or Quad Data Rate (4x) so its 200x4=800mhz FSB and to get FSB1000 you have to overclock the FSB to 250 to get 250x4=1000mhz FSB and because P4's are multiplier locked (and yours at 15) when you raise the FSB from 200 to 250mhz that changes the original 15x200=3000 to 15x250=3750.

It seems like your a newbie at this, i suggest to google "overclock prescott" and see what everyone else has to say bout prescotts but here are the basics:

As for overclocking, dont go straight from 200mhz FSB to 250mhz FSB, do it in ~5mhz increasements.

As for Ram and overclocking, if you run the ram Async with a diffrent ratio (depending on what ur bios has to offer) you could run it at the '333' setting to when you get to FSB1000(250) your ram will be back to the stock 400mhz, but performance wouldnt be as quick as if you had ram in sync.

Prescotts are hot.
You will need excelent cooling to use a prescott (even with stock speeds).
Prescotts throttle and performance may be worse after overclocking.
January 20, 2006 12:46:44 PM

no i'm not planning to buy new PC right now, because i'm goin to buy notebook f0r school, but maybe next year (2007), i will use AMD fo my new PC :) 
January 20, 2006 12:46:56 PM

Quote:
If you have liquid nitrogen you may be able to pull it off...

If not I would advise you to upgrade to AMD64

Here is a decent upgrade setup for about $400 :D 

http://secure.newegg.com/NewVersion/Wishlist/WishShareS...

Good Luck!


All of this AMD versus Intel babble. I recently upgraded, and haven't had a single crash or ANY overheating. The best part is, I dind't use AMD or Intel.

Check it out
January 20, 2006 11:42:00 PM

whats that ROFL???
thanks for help guys, you rock!!!
Yeah!!1
January 25, 2006 10:08:55 PM

my Prescott is overclocked, and its running at 21C/69F. Yes, right now. I'm using a 3.0Ghz processor overclocked to 3.22Ghz. When overclocked to 3.48Ghz, its only mildly higher. Like, 23C. :roll: I've heard so much crap about Prescotts running hot, I don't know where it all comes from. Most ppl who claim they run hot haven't experienced it themselves, or have a crappy set up in their system, like being dusty.
January 25, 2006 10:51:12 PM

Quote:
my Prescott is overclocked, and its running at 21C/69F. Yes, right now. I'm using a 3.0Ghz processor overclocked to 3.22Ghz. When overclocked to 3.48Ghz, its only mildly higher. Like, 23C. :roll: I've heard so much crap about Prescotts running hot, I don't know where it all comes from. Most ppl who claim they run hot haven't experienced it themselves, or have a crappy set up in their system, like being dusty.


soooo your prescott runs at 23 C overclocked... lol
looks weird to me because a prescott may start at 43 C doing nothing if it's perfect... even a watercooled prescott is over 30 C ( human body is 40 C ) so if you touch your heatsink it should be cold while your cpu runs... if you use stock air cooling, may i suggest that the sensor might be wrong. all prescotts i've seen were aroud 50 C and running up to 75 C with stock cooling. even a via c3 chip ( passive cooling ) with a real heatsink on won't go below 25 C
January 25, 2006 11:22:32 PM

yeah, right, 40 C is a serious fever
January 25, 2006 11:23:05 PM

ok,.. so you think my sensor is out of wack? maybe... but I gave it a stress test... and like I've said in some other threads, it's max is 37C.
January 25, 2006 11:56:04 PM

well, assuming the sensor is right,

to get 37 C could be a socket sensor. or chipset sensor ( mobo temp )
( with a fan blowing directly on it )

anyway, what program or tool give you that temp 23 C
( if it's an lcd screen in front of your case, the sensor is still on the intake )
January 25, 2006 11:57:16 PM

in my thread about it I state the reason why, I have too slow of RAM, and clocking back makes the RAM underclock... system works great at 3.48Ghz. I could leave this thing on 3.37Ghz (overclocking my current RAM to DDR454, and its a DDR400 stick) currently, at my 3.22Ghz overclock, I have my RAM overclocked to DDR430. Seriously, this thing is pretty cool, maybe the sensor is out, but I still think its running pretty cool. Ambient is about 20C. Processor is running at about 21C now.
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January 26, 2006 12:54:09 AM

It all depends Wusy.
My 3.0E does 3.75gig on stock voltage with memory set to 320 or 5/4 ratio. max temp so far is 58c running Stability test. A couple degrees higher than prime or Folding@home.
Of course I'm using a Thermaltake P4 Spark 5 copper heatsink(2 years old) with the fan turned down to 11/16 . Much too noisy at regular speeds.
Never tried the stock cooler. Still in the box.
January 26, 2006 1:00:41 AM

Unless you are using liquid nitrogen 21C is virtually impossible!

Semper Fi Linux on
January 26, 2006 1:15:48 AM

I agree,... Linux is wonderful.. but 21C Prescott? impossible? no way. It sure is possible. I'm doing it right now. :) 
January 26, 2006 6:40:27 PM

recommend me a good motherboard.. even though it'll be a lot of work to switch motherboards, I think it would be worth it if I could overclock more.

Two things I forgot to mention the other night, and that is its a LGA 775 socket CPU, and I get those low temp readings cuz I leave the cover off, I never put it on. The whole system runs a lot cooler with the side cover off. Under stress, with the cover on, it reads more like 42C. :) 
January 30, 2006 4:34:28 PM

I'm a big fan of Abit, Asus, and Gigabyte: in that order. If you're going Pentium, I HIGHLY recommend targeting an intel chipset rather than a particualar Mobo Mfr. Find your ideal chipset (Intel usually releases 2 at a time: a mainstream and ahigh-end). The latest chipset is the 955X.

I've gotten both good and bad mobos from the above Mfrs, so find your chipset and then research the difference between the different Mfr's boards: features, and common problems. I usually browse the Mfr message boards as well.

Abit and Asus usually have better overall OC solutions, while Gigabyte seems to be more creative value-adds, such as Dual Bios' and 'Wind Tunnels'. Abit's been pretty good about quit and creative cooling solutions, too. Asus has thier BIOS AI or whatever, which seems to be more bark than bite, usually.

Anyway, pick a chipset (I recommend Intel's 955X, or wait for the 975X for Crossfire), and then compare the different implementations. Stay away from SIS chipsets. VIA is hit-or-miss, but you get what you pay for. If you want nVidia SLI, get nVidia's new chipset for intel procs.
January 30, 2006 5:25:19 PM

My Prescott doesn't run that cool but it does run 30 degrees and under load it goes up to 39 degrees. I ran prime95 and it only went up to 43 degrees and that's running it clocked @ 3.27mhz with a zalman air cooler. My AMD 64 has a similar setup and it runs about the same temps maybe about a degree or two cooler if that. No big deal to me.
January 30, 2006 11:45:09 PM

I'd go with Abit if I found one with a good Intel chipset for good $$ thanks for the tips :)  Maybe even Asus, but I'm looking for one that will handle a good overclock.
January 31, 2006 11:47:12 AM

I’d like to point out that if you have proper airflow it’s cooler to leave the cover on then keep it off. Since you create a wind tunnel that ducts air directly over all the critical areas.

I think some of you are getting dud readings on you temperatures. My 3.0E idled at around 50c with a zalman cooler. Now I went liquid and it idles at 48c ocd to 3.75 250 fsb… the biggest difference is while the cpu could go up to nearly 70c under load with the zalman, now it idles at 58c under load with liquid. I can break the 4ghz barrier completely stable, but the returns are diminishing.

Prescotts (well p4’s in general) can get fairly insane over clocks. Provided you have enough cooling 300 fsb is fairly easy.

For intel overclocking I'd always go with abit. Their boards are solid OC platforms.
a b à CPUs
February 1, 2006 5:54:59 AM

my celeron D 2.4ghz (socket478) hits 3ghz on stock and no further, but the same chip with better cooling hit 5ghz on the net somewhere so i want to try for that some day.

oh yeah - wierdly runs cool at like 58 under load on my ASUS P4P800S

As for my main - P4 2.6c @ ~3ghz stock cooling - what would a better cooler do for me?

i agree on the case on theory - case off runs cool for a while till the hot air gets recycled and heats up more where as a case with decent front intake and rear outtake will run cooler.
February 1, 2006 6:18:29 AM

40C your dead
February 1, 2006 7:05:28 AM

Check your temp. readings aren't faulty. And what's your room temperature? It must be at least 13C at your place. Yes, right now.
February 1, 2006 6:24:51 PM

room temp = ambient. room temp = 69F/21C. Current sensor reading is 22.5C case open, 3.24Ghz OC from 3.0Ghz. Either it runs hotter in the BIOS or it gets a more correct setting, but I find that temps are higher when I check them in the BIOS, mind you, not by a whole lot. :) 

I know people who have run their Pentium 4 at 55C (under load)... and survived it just fine. The idiots just didn't know better and let it get really dusty inside. Cleaned it... and it ran way, way cooler.
February 1, 2006 9:20:57 PM

Preshott overclocked at slightly above room temperature, on air cooling? get off the grass!.
February 2, 2006 12:54:02 AM

want a screenshot, lol :p  just say yes, and I'll get one up. :) 
a b à CPUs
February 2, 2006 2:22:32 AM

55 wont kill the cpu - mine sits at 40's and before i got a better case i was rendering a video for a couple of hours at 69*c and average load was pushin it to ~60's, and as for the old AMD ThunderBird's - idle at 60's anyone? and aparently the pentium m's are rated at 100*c max temp well above desktop cpu's.

BTW thats without dust, and now i got the side pannel with a fan and duct to suck in fresh air for cpu only and under load it will go to ~59*c - i live in Australia, its a P4c 2600 northwood, stock cooling and AC5 (heatsink base polished to a mirror).
February 2, 2006 4:39:08 AM

Unfortunately the reality is that prescott today does not equall preshott any more.

I run a P4 640 3.20GHz. Non stock cooling and lets face who runs on stock cooling today anyway, as well as 4 controlled fans in an Antec Sonata case.

My idle temps are between 32C and 38C on a hot australian summers day ambient temp of 25 to 30C.
.
Playing doom3 it ranges from 42C to 48C load on that same summers day.

It will idle at 38C without a/c being run in the room. It runs at 32C with a/c running.

O/C to 3.60GHz by FSB it runs at 42C to 50C with a/c running.

Obviously at 35C and above ambient, the running temps rise to reflect the ambient temp. But and I stress but I have never ever seen the temp rise above 50C.

You may say the mobo temp sensor is wrong. SpeedFan is wrong. MBM is wrong. Unfortunately the digital and analogue sensors also used where not.

I suggest that you make enquiries as to the technical specifications of TODAYS intel 6xx series cpu's. You may be suprised. While your at check AMD with equivelant and you may be surprised how close they are in regards to Temp.
February 2, 2006 6:41:16 AM

You must be using the 641, not the 640 to be getting those temps. That sounds about right too.
February 2, 2006 7:39:38 AM

Quote:
You must be using the 641, not the 640 to be getting those temps. That sounds about right too.


Definitely P4 640 SL7Z8 LGA775 on a Gigabyte Intel 625PE/ICH5 board.

SL7Z8 3.20GHz 800 MHz FSB 84W (TDP) 67.7C (max)
February 2, 2006 7:56:48 AM

I'm confux0red now.

Intel 640 SL7Z8 3.20 GHz 800 MHz 90 nm N0 (84W)
Intel 540 SL7KL 3.20 GHz 800 MHz 90 nm D0 (84W)
Intel 641 SL94X 3.20 GHz 800 MHz 65 nm B1 (86W)
Intel 541 SL8J2 3.20 GHz 800 MHz 90 nm E0 (84W)
Intel xxx SL7LA 3.20 GHz 800 MHz 90 nm D0 (103W)

I thought the 65nm chips were supposed to run cooler than 90nm,
February 2, 2006 8:43:21 AM

Quote:
I'm confux0red now.

Intel 640 SL7Z8 3.20 GHz 800 MHz 90 nm N0 (84W)
Intel 540 SL7KL 3.20 GHz 800 MHz 90 nm D0 (84W)
Intel 641 SL94X 3.20 GHz 800 MHz 65 nm B1 (86W)
Intel 541 SL8J2 3.20 GHz 800 MHz 90 nm E0 (84W)
Intel xxx SL7LA 3.20 GHz 800 MHz 90 nm D0 (103W)

I thought the 65nm chips were supposed to run cooler than 90nm,


A SL7LA is 84W and a server product in PLGA package.

Apparently the 65nm chips do not have speed step EIST at present and is being added for availability in April.

http://www.intel.com/cd/channel/reseller/asmo-na/eng/pr...


Whats this an AMD with 89W at 90nm?.

AMD Athlon64
ADA3700DAA5BN 3700+ 2.2 GHz 4 GB/s 1 MB 89W 70C 939 90 nm

http://www.hardwaresecrets.com/article/272/2
February 2, 2006 6:30:44 PM

ok, here's some screenshots :)  just click one of the thumbnails below (hosted @ imageshack)

February 3, 2006 3:42:55 AM

How is this possible? My Intel 660 3.6. Ghz runs at 50 C MINIMUM! and thats with a Zalman cooler running at full speed (2600).
February 3, 2006 4:38:15 AM

Quote:
How is this possible? My Intel 660 3.6. Ghz runs at 50 C MINIMUM! and thats with a Zalman cooler running at full speed (2600).


Because your TDP is 115 watts.
February 5, 2006 12:43:23 AM

Yeah, I'm using a DFI 925X-T2 and right now, i've got my scotty OC'd to 3.8Ghz. Still running cool and performs very well. Abits are good boards. :D 

Intel 630 OC Specs
February 5, 2006 2:09:21 AM

That's impressive. You're making AMD look bad.
February 5, 2006 1:03:36 PM

Are you certain your temp sensor is working correctly and the CPU is not throttling down?

What are your voltages?

What kind of cooler are you using?

What's your RPM?
February 5, 2006 7:03:33 PM

CPU is not throttling... to throttle, it would have to heat up, and then throttle right? well, I monitor my temps... after doing some intensive benchmarks for a while, the CPU temp only rises to about 35C. Outperforms the 3.4Ghz and the AMD 3200 when I have mine overclocked to 3.48Ghz. Definitely not throttling. Voltage is stock (come on, it's only a 8.5% overclock). 1.324 volts max (watching it with CPU-Z). That's standard for a Prescott. Cooler is the heatsink it came with. Intel fan and all. CPU Fan RPM is 2200, another fan says it's running at 675,000RPM :o , and third one is running at 5,625 RPM. One is for the ATX power supply, I'm not sure about the others, but there is one for the HDD too I'm sure. It's pretty quiet btw. And about that 675,000 RPM? I don't believe it :lol:  sheer centrifugal force would probably have blown it apart by now, and if it hadn't, it would be howling like a monkey in an African jungle. lol

Edit: there's also a fan blowing air out of the case.
February 5, 2006 7:11:57 PM

If you're overclocking Is there any way of turning off EIST so that it doesn't throttle? Or, can you change the temperature that it throttles at?
February 5, 2006 7:15:48 PM

come to think of it, I think I found a place in the BIOS I can change the temp at which the processor will shut down. I have it disabled, I think. As for throttling? I think I have TM1, which I have shut off. So there is no throttling. :)