2.4/400 @ 3.0/125 1.6V Stock HSF

[TheHorta]

Title says it all. Retail box 2.4/400 running on Asus P4T533-C with OCZ PC1066 in full stock configuration, stock HSF (using AS2) running at 3000/125 - have CPUID shot that needs posting. Bumped up VCORE to 1.6 from stock 1.5. Running <40C. Tried full 3200/133 but only at 1.55OV and failed to post. With better HSF and higher VCORE, might have a shot. Stunned at 25% increase from stock though. Bonafide 3Ghz with zero mods or add-ons. Have not stress tested, but using it to post here with Win2K.



The Horta.

 

[Duvie]

NIce job....NOw go again and stress test it...I can post at 2.8ghz with 1.71v but can only get it to be stable at 2.74ghz....At least you have room to go up to 1.65v probably to get stability if 1.6v isn't enough...


Is that actual vcore???

 

[TheHorta]

The BIOS reports (and stops asking for F1 to continue) 1.71 or so fluctuating between 1.68 and 1.72. It did this even if I set it to 1.550. Not sure if that's what you mean or not. It the board giving the CPU what it needs? Not sure why it would say over 1.7+ if I set it to 1.60. Any ideas?

Prime95 fails out within 1 minute, but nothing seems unstable. Ran MemTest and after a while the machine rebooted itself. Only running at 125 FSB @ 4x so I don't think anything is being taxed too much. Will try 1.65V and see if Prime will run.


The Horta.

 

[TheHorta]

The BIOS reports (and stops asking for F1 to continue) 1.71 or so fluctuating between 1.68 and 1.72. It did this even if I set it to 1.550. Not sure if that's what you mean or not. It the board giving the CPU what it needs? Not sure why it would say over 1.7+ if I set it to 1.60. Any ideas?

Prime95 fails out within 1 minute, but nothing seems unstable. Ran MemTest and after a while the machine rebooted itself. Only running at 125 FSB @ 4x so I don't think anything is being taxed too much. Will try 1.65V and see if Prime will run.


The Horta.

 

[TheHorta]

The BIOS reports (and stops asking for F1 to continue) 1.71 or so fluctuating between 1.68 and 1.72. It did this even if I set it to 1.550. Not sure if that's what you mean or not. It the board giving the CPU what it needs? Not sure why it would say over 1.7+ if I set it to 1.60. Any ideas?

Prime95 fails out within 1 minute, but nothing seems unstable. Ran MemTest and after a while the machine rebooted itself. Only running at 125 FSB @ 4x so I don't think anything is being taxed too much. Will try 1.65V and see if Prime will run.


The Horta.

 

[TheHorta]

The BIOS reports (and stops asking for F1 to continue) 1.71 or so fluctuating between 1.68 and 1.72. It did this even if I set it to 1.550. Not sure if that's what you mean or not. It the board giving the CPU what it needs? Not sure why it would say over 1.7+ if I set it to 1.60. Any ideas?

Prime95 fails out within 1 minute, but nothing seems unstable. Ran MemTest and after a while the machine rebooted itself. Only running at 125 FSB @ 4x so I don't think anything is being taxed too much. Will try 1.65V and see if Prime will run.


The Horta.

 

[boi]

Dang, I thought you couldn't post twice, let alone 4 times in a row?

 

[oldfart]

Your system is not stable

1) Prime95 should run all day without errors. 1 min is really bad.
2) The instability is causing quadruple posts!!

 

[CrazySaint]

Originally posted by: TheHorta
Not sure if that's what you mean or not. It the board giving the CPU what it needs? Not sure why it would say over 1.7+ if I set it to 1.60. Any ideas?

This is because Asus boards tend to overvolt quite a bit.

Prime95 fails out within 1 minute, but nothing seems unstable. Ran MemTest and after a while the machine rebooted itself.

Believe me, this system is NOT stable! You should be able to run Prime95 for AT LEAST 12 hours with no errors. Btw, I've heard that MemTest86 doesn't work on RAMBUS.

Only running at 125 FSB @ 4x so I don't think anything is being taxed too much. Will try 1.65V and see if Prime will run.


The Horta.

At 3GHz, the CPU is being taxed. If you're already getting over 1.7v with the vcore set at 1.6v, DO NOT increase the voltage any more, since 1.7v (actual) is considered the maximum safe voltage for P4 Northwoods.

 

[RalfHutter]

Originally posted by: CrazySaint
..........Btw, I've heard that MemTest86 doesn't work on RAMBUS.

FWIW, the Memtest86 Read Me says this:

"Memtest86 supports all types of memory. If fact the test has absolutely no knowledge of the memory type nor does it need to"

 

[TheHorta]

OK, I dropped down to 120/40 still at 3x and get 2879 nice and stable. I was concerned about the FSB at 140, but ran P95 for over 10 straight hours without an error. Using MBM the temp quickly went from 28C to 46C but levelled off there. I guess that stock HSF will have to go. I was surprised that is was stable overnight. Awoke to check it out and it was still kicking along. Oh, and I'm at default 1.50 VCORE set.

Seems like a nice "sweet spot" at almost 2.9G with nothing other than an FSB bump. Otherwise all stock through and through. Once I get a MUCH better HSF, I'll tinker with 3Ghz again at higher voltages. May not do much, but at least it shouldn't hit 46C under stress.


The Horta.

 

[Thor86]

Originally posted by: oldfart
Your system is not stable

2) The instability is causing quadruple posts!!

LOL!

Nice overclock though!

 

[shurleydude]

less than 40 on stock HSF?????? i'm getting 65 degrees full load and 45 degrees idle on a 2.66 OCed to 3010 with a volcano 7+!!!!!! something is wrong on yours or mine!

 

[JaFF]

My P4 2.4B is sitting at 2853 atm with stock intel cooler and no problems with instability, max temp at the mo has been 42 C
When I get a TT V7+ I'll try hitting 3Ghz, the Corsair 3200XMS Cas 2 rocks!

 

[TheHorta]

less than 40 on stock HSF?????? i'm getting 65 degrees full load and 45 degrees idle on a 2.66 OCed to 3010 with a volcano 7+!!!!!! something is wrong on yours or mine!

I think yours. I run MBM at all times and after being on for MANY hours and "normal" use (ie: surfing, Word, Excel, etc) my temps read 25C for MB and 28C for CPU with all stock HSF (though using AS2). I would submit that something indeed is WAY wrong with your temps. They seem whacked out, bigtime! I can only hit 45C after running P95 all day. My house is cold (Fall here in New England), but still. This is on NORMAL voltage however--as I have not needed to increase it one bit to get 120/40 FSB @ 2879MHz stable all day long.

After I snag a better cooler, I'll go for the big 3G again.



The Horta.