Overclocking with ASUS A8N-Sli & 4000+ San Diego Help Pls

syfer · 8 May 2006 at 22:47

As title, noob here!

I have recently upgraded my motherboard & CPU, my current system is as follows:

ASUS A8N-SLI Premium Skt 939
Athlon 64 4000+ With Zalman Copper Air
X850XT PE With Zalman Copper Air
2 x 1GB Crucial DDR400

Not sure the best way to go forward with this, I currently have the 4000+ running at 2.64 with ASUS bios set to 10% overclock.

My 3DMark 05 scores are about the same as my old ASUS P4GPLX & P4 2.8 running at 3.5

Could someone let me know what overclock settings I should be running with this board & CPU? I have seen people about running these chips at 2.9 & above on air cooling, is this possible with this setup?

Bit dissapointed with the upgrade so far....

Cheers.

Cyanide · 8 May 2006 at 22:51

You're best to do the overclocking manually, rather than letting the bios do it itself.

The board's good for 250+ FSB, and the RAM should run fine on a divider.

Have a lil play around, set the ram speed low, lock PCI etc and slowly increase the FSB to see how far it goes

syfer · 8 May 2006 at 23:00

Cyanide said:
You're best to do the overclocking manually, rather than letting the bios do it itself.

The board's good for 250+ FSB, and the RAM should run fine on a divider.

Have a lil play around, set the ram speed low, lock PCI etc and slowly increase the FSB to see how far it goes

Duh, sorry, that went straight over my head! Quite new to all this oc'ing. I managed to get my old P4 2.8 to 3.5 by using the ASUS auto settings.

So what does setting the ram low mean? I reduce it from 400mhz?

I presume locking PCI means setting it to 33.33?

Sorry for being completely useless.......

Cyanide · 8 May 2006 at 23:15

syfer said:
Duh, sorry, that went straight over my head! Quite new to all this oc'ing. I managed to get my old P4 2.8 to 3.5 by using the ASUS auto settings.

So what does setting the ram low mean? I reduce it from 400mhz?

I presume locking PCI means setting it to 33.33?

Sorry for being completely useless.......

Sorry for jumping the gun

Righty, reduce the ram speed down from 400mhz to a level or 2 below it. This will give you some room to increase it. RAM speed increases with the FSB speed and if it's set to 400mhz and it's only rated for 400mhz then it won't go very far!

Then lock the PCI to 33.33 and PCI-E to 100 (I think... should be set to that anyways). This will stop them increasing as you up the speed so they won't become unstable.

Set voltages to auto so you don't fry anything.

Then set your multiplier to it's max and gradually increase the FSB (CPU frequency) by 5mhz. Save and load windows, then run CPUZ to be sure it's clocked.

Then go back to the bios and up it by another 5mhz, save, load and check.

Keep doing that until it becomes unstable, then either up the cpu voltage by a little bit or, if you decide that it's as far as you want to push it, drop it by 5-10mhz so it's stable again.

The Asus board is really stable, so you shouldn't have too many problems, it's only downside is the lack of cpu voltage, but I suppose that means there's no risk of killing the chip!