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Pentium 4 630 Prescott Overclocking

post #1 of 12
Thread Starter 
I am getting a P4 630 HT 3.0ghz, and it is coming with stock heatsink and fan, everyone OC's their P4's and they say it brings a ton of performance, so how can I do this? I mean I saw you can do this in the BiOS, is is possible to do so in the OS with an application?

ALSO, will I be able to get a stable clock of about say 3.6ghz on stock? maybe 3.4 to expand the lifetime.

EDIT:

I only want this to be stable, no super clocks just for benchmarks, I need a perfectly safe and stable OC.
Edited by assaulth3ro911 - 5/25/11 at 11:59am
post #2 of 12
That's the 90nm Prescott, so I don't know what their typical is, but the 65nm Cedar Mill die shrink (the 6x1 series) gets to 4GHz and above easily. With the stock heatsink on that 90nm model, temperatures will probably be what limits you.

It's hard to say when you don't list the motherboard/RAM, but I'd recommend using the BIOS, not software.
post #3 of 12
Thread Starter 
Okay I'll use the BIOS, also, the motherboard: http://www.biostar.com.tw/app/en/mb/content.php?S_ID=363

Could you tell me what kinda temps there will be? Because this will be my first time OCing.. I don't want to screw up, and what kind of performance increase will I get from say a 3.2-3.4GHz OC?
post #4 of 12
Decent cooling = 4.0-4.5GHz
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Swag box m8
(13 items)
 
7 x BL460c
(6 items)
 
 
CPUMotherboardGraphicsRAM
2500K Asus P8P67 Sapphire HD 5770 2x8GB Corsair 1333MHz 
Hard DriveMonitorMonitorPower
Corsair Force 3 120GB Aoc F22S+ Aoc F22S+ Powercool 850W 80+ 
Case
NZXT Phantom 
CPUCPUMotherboardRAM
Xeon E5520  Xeon E5520  BL460c G6 12GB ECC DDR3 
Hard DriveOS
1TB of SAN Server 2008 R2 
  hide details  
Reply
post #5 of 12
Thread Starter 
Quote:
Originally Posted by overclocker23578;13633544 
Decent cooling = 4.0-4.5GHz

Stock cooling? What will I get (stable)?
post #6 of 12
Quote:
Originally Posted by assaulth3ro911;13633540 
Okay I'll use the BIOS, also, the motherboard: http://www.biostar.com.tw/app/en/mb/content.php?S_ID=363

Could you tell me what kinda temps there will be? Because this will be my first time OCing.. I don't want to screw up, and what kind of performance increase will I get from say a 3.2-3.4GHz OC?
Okay, the board probably won't become a limit, and since it's using DDR2, I doubt that will. The limit will be temperatures. On a 65nm variant with far better than stock cooling, I got 4.5GHz easily. Around 4.6GHz and higher it started getting iffy stability and temperature-wise. I got 4.8GHz to boot to Windows, and 5GHz to boot to BIOS, and temperatures and voltage were way high. A 90nm with stock cooling won't get far. It's a shame, with that board/RAM, I'd say even a decent budget cooler (like a Freezer 7 Pro) might net you ~4GHz. Hard to say though what you'll get.
post #7 of 12
Thread Starter 
Quote:
Originally Posted by Princess Garnet;13633704 
Okay, the board probably won't become a limit, and since it's using DDR2, I doubt that will. The limit will be temperatures. On a 65nm variant with far better than stock cooling, I got 4.5GHz easily. Around 4.6GHz and higher it started getting iffy stability and temperature-wise. I got 4.8GHz to boot to Windows, and 5GHz to boot to BIOS, and temperatures and voltage were way high. A 90nm with stock cooling won't get far. It's a shame, with that board/RAM, I'd say even a decent budget cooler (like a Freezer 7 Pro) might net you ~4GHz. Hard to say though what you'll get.

Well what kind of performance will I get with say a 3.4ghz overclock (stable) and what kinda temps with say, 6-8 hours gaming?

Lifespan?
post #8 of 12
Depending on temperatures, I'm going to guess that a stock Pentium 4 Prescott on stock cooling has little headroom, so 3.4GHz-3.6GHz might be your absolute upper limit. If I remember right, via a YouTube video, the 3.6GHz variant was close to thermal limits.

[ame]http://www.youtube.com/watch?v=N1hg1zf7rrY[/ame]

That's with a 5x0 model, so it's not the same as your 6x0 model, but if I remember right, the only difference between the 5x0 and 6x0 models was that the latter had 2MB L2 cache vs 1MB L2 cache, while the 6x1 was the 2MB L2 cache and 65nm die shrink. The 90nm variants ran warmer. I'd say you're likely looking at a similar ceiling range. You may even run warmer in theory since it has more cache/transistors? I'm not sure. Then again, that case looked like it had less cooling/airflow than ones these days do.

I wish I could answer for performance. I didn't bench mine (Pentium 4 641) at stock versus overclocked. It's a shame you can't drop the multiplier on those models. That would help you greatly. Since cooling is your limit, you'll have alot of FSB bandwidth to spare, which the Netburst CPUs (Pentium 4/Pentium D) absolutely loves. Dropping the multiplier to get the same clock speed with more FSB would be ideal... if possible.

I don't know the voltage or thermal limits of the 5x0 Prescott, so I'll let someone else answer.

My ideal recommendation would be to look for a cheap Freezer 7 Pro cooler, and try and get ~4GHz with nice voltage. It should last that way longer than you'd probably be left using it.
Edited by Princess Garnet - 5/25/11 at 12:29pm
post #9 of 12
Thread Starter 
Sad to say, I'm a newbie at overclocking, so I have no idea what the limits are, and are you saying my limits are 3.4-3.6 STABLE? or just die hard maximum? Because I am looking for stable smile.gif And even though you may not have an exact answer to performance increase, WOULD IT BE WORTH IT?
post #10 of 12
Thread Starter 
Quote:
Originally Posted by Princess Garnet;13633843 
Depending on temperatures, I'm going to guess that a stock Pentium 4 Prescott on stock cooling has little headroom, so 3.4GHz-3.6GHz might be your absolute upper limit. If I remember right, via a YouTube video, the 3.6GHz variant was close to thermal limits.

http://www.youtube.com/watch?v=N1hg1zf7rrY

That's with a 5x0 model, so it's not the same as your 6x0 model, but if I remember right, the only difference between the 5x0 and 6x0 models was that the latter had 2MB L2 cache vs 1MB L2 cache, while the 6x1 was the 2MB L2 cache and 65nm die shrink. The 90nm variants ran warmer. I'd say you're likely looking at a similar ceiling range. You may even run warmer in theory since it has more cache/transistors? I'm not sure. Then again, that case looked like it had less cooling/airflow than ones these days do.

I wish I could answer for performance. I didn't bench mine (Pentium 4 641) at stock versus overclocked. It's a shame you can't drop the multiplier on those models. That would help you greatly. Since cooling is your limit, you'll have alot of FSB bandwidth to spare, which the Netburst CPUs (Pentium 4/Pentium D) absolutely loves. Dropping the multiplier to get the same clock speed with more FSB would be ideal... if possible.

I don't know the voltage or thermal limits of the 5x0 Prescott, so I'll let someone else answer.

My ideal recommendation would be to look for a cheap Freezer 7 Pro cooler, and try and get ~4GHz with nice voltage. It should last that way longer than you'd probably be left using it.

I'd probably get someone to sell me a C2D for like $20-$40 instead though smile.gif
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