I have been reading Tom's for a few years and this forum for awhile.
The time has come for me to get a new system, On a tight budget mind you.
I have overclocked the system but not nearly as much as others have obtained.
Here is my system and what I have done.
From Previous p4-478 System:
Case: Cooler Master cm690
Power Supply Extreme Power 600
LG Dvd Burner
80gb WD sata HD
200gb WD sata HD
Zalman 7700cpu cooler
Asus P5k-SE MB
Intel 2160 stepping "d" revision "mo"
Asus 8600gt Silent
2gb ddr2-667 kingston ram
I installed everything, used artic silver paste.
I use cpuid Hardware Monitor and cpu-z.
I have been able to overclock to 2.61ghz. which is 290fsb * 9
vcore is at 1.45
ram is at 725 at 1.9v
i put the pci-e at 100
anything higher than this and it will not post.
At this setting I ran prime 95, one on each core and temp on each core was about 67'c idle 38.
I know that tom's was able to reach 3.2-3.3 and suggests 3.0 with a 333 fsb without a problem with only a bit of voltage.
For me this would be perfect because I could then keep my ram at 667. In the bios I cannot choose a better ram option, it gives me choices of auto, ddr2-725 and another one higher...its runnin 4:5 fsb ram right now. sucks.
I think to go higher I need better ram because the next setting brings me to 753. when i use 295fsb.
Another this there is this fsb to northbridge setting that the manual says should be set to 200,266,333 depending on the fsb being used.
Can anyone shed some light on what I may be doing wrong?
oh I scored 9827 in 3dmark05
and 4643 on cinebench multiple cpu render test
4820 on cinebench open gl test
thanks in advance for the help
Ya learn something new everyday, If ya don't, Ya dead.
First of all, I have the same chip. While every chip and every chip/MB combo is different, there is no way you should need 1.45V to do 2.61GHz (290x9). I can undervolt to 1.28V @ 2.8GHz. Once again every chip is different but that is drastically different.
Second, I'm not familiar with your board so if you've read the sticky guides on OCing on these forums I'll assume that you disabled speedstep, EIST and such. Do you have a performance enhance option? Set it to standard not turbo.
Is that RAM really only rated for 667MHz? I would assume that if they are they could do 753 but might require +.2 to DDR Overvoltage. I don't think this is as important as getting your CPU voltage down but consider some new DDR2-800.
Finally, how old is your power supply? I don't know how having an old or poor quality power supply effects CPU voltages but it seems an obvious option.
im not sure how to post the bios, unless i take digital pic of it.
but i can enumerate it to you tonight when i get home.
thanks for the help though.
and i am going to switch the ram for some ddr2800 instead of 667 and see it that helps me overclock more.
I cant figure out why i would need to put 1.4 volts when your stable at a higher speed with 1.28, very weird.
This forum seems to be dead of late. Sorry you couldn't get more help with your board. I know that a lot of people here love the Asus P5K-E, and a lot of people love the Gigabyte DS3L including myself.
If you plan to upgrade to a 45nm chip in the next year you should consider the P5K-E.
Try starting a new thread with your specific question. Sorry I couldn't help more, I've only been doing this for a few months and although I've learned my board quite well, I don't want to give you bad info.