I've oc'd my cpu freq to 239mhz.Running at 2.5ghz from the original 2.2ghz. Any higher it shuts itself off. I've been told that I could go higher.
I've got a kick ass zalman heatsink, it keeps my cpu cold. Around 33c 91f.My gpu gets hot around 55c 130f. Do I need to cool my stuff a little to get it to 3.0ghz?

nForce4m-A, amd 6400+, Geforce 7600gs, 2gig sticks at 533mhz. Upgrading ram asap

Apart from the freq to 239mhz did you undertake any other adjustments ??

Your GPU is not hot...55C is normal. Besides, it has nothing to do with your CPU overclock. In your other posts, you claim to have a 4200+, then a 4600+, now a 6400+...which is it? If it's the 6400+, it's not gonna overclcok as well as the other CPUs because it's already close to being maxed out.

The Zalman was an unnecessary added expense (unless you have the 6400+), you should have invested in DDR2-800 RAM instead. The DDR2-533 is killing your overclocking experience. Let me repeat what I wrote in one of your other posts...I changed it slightly (in bold) now that I know what RAM you have:

"Lock the PCI-e at 100MHz, lower the HT frequency from 5x to 4x, disable ALL Spread Spectrum settings, lower the RAM setting from DDR533 (or auto) to DDR400, raise the CPU frequency a little at a time & test for stability after each change...try to get it up to 250MHz. Be prepared to raise the CPU voltage."

If you take the time to read all this, you'll be an expert:

http://icrontic.com/articles/a64_ov...

Here's a review of your board showing how to overclock:

http://www.sysopt.com/features/mboa...

I had a little to drink last night. I was trying to say 4600+. I lowered my HT freq to 4x.Now I have ddr800.
Thanks for link.

"Now I have ddr800"

Then You have to follow my original instructions:

"Lock the PCI-e at 100MHz, lower the HT frequency from 5x to 4x, disable ALL Spread Spectrum settings, lower the RAM setting from DDR800 (or auto) to DDR667, raise the CPU frequency a little at a time & test for stability after each change...try to get it up to 250MHz. Be prepared to raise the CPU voltage."

Just to add - make sure your RAM is running at the manufacturer's recommended voltage.

How do I change the RAM voltage?

manufacturer's recommended voltage is 1.9V

In the BIOS, just like you change all the other settings when you overclock. It may be called something else...possibly vdimm? Or you may not have the option at all. As long as the RAM is running at the recommended voltage, you'll be fine, but you may encounter problems if the RAM is undervolted. For instance, running RAM at 1.8v when it's designed for 2.0v.

After doing all this my sound does'nt work

Your sound drivers may have somehow become corrupted. Check device manager & see if there's any exclamation points. You could either try reinstalling the drivers, or you could try uninstalling the sound entries from device manager, then rebooting to see if they correct themselves.

Also, double check your cables. You probably had to lay the case on it's side when you swapped the RAM, so maybe you knocked something loose. If you unplugged the speakers, you may have replugged into the wrong port.

Thanks for all the help.

You mentioned that you are using a Zalman Cooler. Are you using the 9700? Very interested in this product. Looks great and seems to get great reviews.

DigitalStorm thx,
CM Stacker 830
XP Pro sp2
nForce 680i SLI mobo
Kentsfield OC'd 3.33ghz, 2gb 8500
2 8800GTX'S
X-Fi Fatal1tySC
Tpwr1000wPS,
Samsung 244T

Currently using the Arctic Freezer Pro7. Very concerned about my current temps after my last oc'ing.

DigitalStorm thx,
CM Stacker 830
XP Pro sp2
nForce 680i SLI mobo
Kentsfield OC'd 3.33ghz, 2gb 8500
2 8800GTX'S
X-Fi Fatal1tySC
Tpwr1000wPS,
Samsung 244T

the zalman 9700 is what I have. Works great keep cpu cold after ocing to 2.7ghz from 2.2ghz
runs at 78f to 81f during Call of Duty 4 Mod War. ALL setting maxed out.