p4 overclocking
 

i know the number of p4 users is small here but i have a strange problem and wonderd if anyone else has seen this.

i have a p4 2.53 c1 stepping running at 3153ghz. i just installed some xms 3500 cl2 memory (had samsung 3200 cl2.5 before )and increased the fsb from 166 to 170 giving me 3230ghz. i ran sandra cpu benchmark before and after and the benchmark was the same. the strange thing is it was only 8196 mips. when i first setup this system up it was running faster at 9011mips.

i have lowerd the core volts to 1.52 and the system is running fine with no lockups. on my old benchmark i would have had the volts at 1.5v or higher. could this be the problem ?

Lee
:shrug:

Maybe the CPU is throttling off due to overheating ?

system temp 25C
idle temp 38C
load 42C

i am looking into the by spd settings on my p4pe. it looks like that could be one problem.

SPD settings are programed into the RAM~sticks themselves, not the BIOS/mobo. You're best off setting it up yourself...

Yes, spd is programmed inn thoses sticks. so set them up yourself.

If that is done, right and u still have problems i would think throttling or that your software is a bit "¤)(/#(¤/%" :)

No spyware proggies that have gone past you?

-P-

i did a bit of searching last night and found that the xms 3500 on chip spd is the same as 3200 so i set them myself to 2-3-3-7. I also found that the p4pe i have has problem with high fsb in memory slot 1 so i will change that too.

just before i switched of my pc last night i ran one more sandra benchmark and found it was 9003 mips.
This morning back to 8000.

I have my 1.6a "Northy" at 2.59 the other day...

Temps were 32 deg cel for the chip
case was 34 deg cel...

Using air cooling setup...

I'll post pics soon....

after installing sandra max today i found my benchmarks are close to what they have for 3gig and 3.2gig p4 non HT so i am happy.

also have the xms 3500 at cl2 424mhz
fsb 170
core volts 1.55
speed 3230

i have a little more left on the ram so after giving it a good bashing i will try higher.

cant wait for my cascade as my temps will drop giving me even more room to improve.

I did have a close call as the ehiem 1048 i have stopped working and my bios temps shot up to 86C !!!!!!!!!!!!!!:eek:

I have changed the 1048 to a aquabee 1000 l/h for the moment.