P4 Max temp/max voltage?

januszian · 12-01-2004, 08:48 PM

Hey. I was just wondering, what is the max temp for a P4 2,8C 800 FSB northwood? It's running about 60 degrees Celsius with 2,8 @ 3,5 OC.

I have a P4 2,8C GHz 800 MHz FSB processor and an Asus P4C800-E Deluxe motherboard. I'd like to use my processors with 250 FSB as 3,5 GHz (I've done so before I bought a bunch of stuff to my computer) but it seems unstable with Doom III and/or running 5 movies and virus scan in win XP (100 % cpu usage) Computer just freezes.

What voltage should I use with the 250 FSB with my 2,8C P4 northwood with hyper threading? I tried using 1,65 voltage but it still freezes. What is the voltage max for a P4?

I have a Zalman CNPS 7000A Cu cooler on my CPU. Would Arctic silver be better than the white goo that came with the Zalman?

My memory is running about 400 MHz with with 5:4 divider. (320 MHz option in asus bios) My memory voltage is 2,75. I have a one gig dual channel kit of Kingston Hyper-X PC3500 memory. Memtest shows no errors with full testing. I have the lowest latencies possible without errors, 2-2-3-5.

I just bought an Antec Truepower 550 so it's not lack of power... (the reason why I bought a new PSU was that before my soundcard and video capture card I was able to OC to 3,5 GHz)

Also how much does the ASUS PAT and TURBO mode affect OC'ing? If I have the latencies set manually, should I disable the turbo and/or the Performance acceleration technology in the memory page in bios?

thanks.

**Praetor** · 12-02-2004, 02:12 AM

Quote:

What voltage should I use with the 250 FSB with my 2,8C P4 northwood with hyper threading

Whatever you need to make/keep it stable.

Quote:

I tried using 1,65 voltage but it still freezes. What is the voltage max for a P4?

Look in your BIOS or better yet, the manual. According the manual, p84, the max Vcore is 1.600

Quote:

Would Arctic silver be better than the white goo that came with the Zalman?

Depends on what the white goo was but probably

**Cromewell** · 12-02-2004, 09:32 PM

PAT doesn't hurt OCing, its just an ASUS thing that is supposed to lower RAM latencies. Weather it works or not is another story, I'm not sure as I can't see any difference when I enable/disable it.

I'd deffiently say try a lower core voltage, something like 1.55 should be enough

**Praetor** · 12-03-2004, 12:09 AM

Quote:

PAT doesn't hurt OCing, its just an ASUS thing that is supposed to lower RAM latencies

PAT is an Intel thing available on 875P boards. The ASUS Hyperpath is ASUS's version of PAT which they put on 865PE boards (because the Intel spec removed PAT from thr 865s)

Quote:

I'm not sure as I can't see any difference when I enable/disable it.

I concurr, a marketing hype

**Cromewell** · 12-03-2004, 02:02 AM

ah right I had PAT and hyperpath confused

januszian · 12-03-2004, 04:17 PM

Thanks dudes. But I've given up on the whole OC thang...

My PC is plenty fast with 201 FSB and turbo and PAT enabled with 2-3-2-5 latencies. (I can't boot with 2-2-2-5 because of the Intel I875/Kingston Hyper-X PC3500 thang...)

If anything, maybe a new Processor one day. (P4 3,4 Extreme Edition)

Doom III works nicely and more important, my machine is completely stable and shows no errors in Memtest 3.2. (Btw. what happened to "ALL" option in the test configuration? memtest just shows "STD" in the test section...)

Just out of curiosity, what do you suppose might have happened since I can no longer get my PC to even boot with 217 FSB which is the max for the Kingston Hyper-X PC3500???

Am I forgetting something? I set the latencies to auto, disable/enable turbo and PAT but still she won't wake up...

**Praetor** · 12-04-2004, 01:19 AM

Quote:

(I can't boot with 2-2-2-5 because of the Intel I875/Kingston Hyper-X PC3500 thang...)

Dont matter much as the TRCD isnt that critical as say TCAS or TRAS

Quote:

Just out of curiosity, what do you suppose might have happened since I can no longer get my PC to even boot with 217 FSB which is the max for the Kingston Hyper-X PC3500???

Well it depends on what you want to do ... push/keep that OC

Quote:

Am I forgetting something? I set the latencies to auto, disable/enable turbo and PAT but still she won't wake up...

Vdimm, manually set the latencies

12-01-2004, 08:48 PM	#1 (permalink)
januszian New Member Join Date: Nov 2004 Posts: 7	P4 Max temp/max voltage? Hey. I was just wondering, what is the max temp for a P4 2,8C 800 FSB northwood? It's running about 60 degrees Celsius with 2,8 @ 3,5 OC. I have a P4 2,8C GHz 800 MHz FSB processor and an Asus P4C800-E Deluxe motherboard. I'd like to use my processors with 250 FSB as 3,5 GHz (I've done so before I bought a bunch of stuff to my computer) but it seems unstable with Doom III and/or running 5 movies and virus scan in win XP (100 % cpu usage) Computer just freezes. What voltage should I use with the 250 FSB with my 2,8C P4 northwood with hyper threading? I tried using 1,65 voltage but it still freezes. What is the voltage max for a P4? I have a Zalman CNPS 7000A Cu cooler on my CPU. Would Arctic silver be better than the white goo that came with the Zalman? My memory is running about 400 MHz with with 5:4 divider. (320 MHz option in asus bios) My memory voltage is 2,75. I have a one gig dual channel kit of Kingston Hyper-X PC3500 memory. Memtest shows no errors with full testing. I have the lowest latencies possible without errors, 2-2-3-5. I just bought an Antec Truepower 550 so it's not lack of power... (the reason why I bought a new PSU was that before my soundcard and video capture card I was able to OC to 3,5 GHz) Also how much does the ASUS PAT and TURBO mode affect OC'ing? If I have the latencies set manually, should I disable the turbo and/or the Performance acceleration technology in the memory page in bios? thanks. Last edited by januszian; 12-03-2004 at 04:21 PM.

12-02-2004, 09:32 PM	#3 (permalink)
Cromewell Moderator Join Date: Dec 2004 Location: Canada Age: 25 Posts: 10,425	PAT doesn't hurt OCing, its just an ASUS thing that is supposed to lower RAM latencies. Weather it works or not is another story, I'm not sure as I can't see any difference when I enable/disable it. I'd deffiently say try a lower core voltage, something like 1.55 should be enough __________________ You know what the chain of command is? It's the chain I go get and beat you with 'til ya understand who's in command here. www.userfriendly.org

12-03-2004, 02:02 AM	#5 (permalink)
Cromewell Moderator Join Date: Dec 2004 Location: Canada Age: 25 Posts: 10,425	ah right I had PAT and hyperpath confused __________________ You know what the chain of command is? It's the chain I go get and beat you with 'til ya understand who's in command here. www.userfriendly.org

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12-03-2004, 04:17 PM	#6 (permalink)
januszian New Member Join Date: Nov 2004 Posts: 7	Thanks dudes. But I've given up on the whole OC thang... My PC is plenty fast with 201 FSB and turbo and PAT enabled with 2-3-2-5 latencies. (I can't boot with 2-2-2-5 because of the Intel I875/Kingston Hyper-X PC3500 thang...) If anything, maybe a new Processor one day. (P4 3,4 Extreme Edition) Doom III works nicely and more important, my machine is completely stable and shows no errors in Memtest 3.2. (Btw. what happened to "ALL" option in the test configuration? memtest just shows "STD" in the test section...) Just out of curiosity, what do you suppose might have happened since I can no longer get my PC to even boot with 217 FSB which is the max for the Kingston Hyper-X PC3500??? Am I forgetting something? I set the latencies to auto, disable/enable turbo and PAT but still she won't wake up...