why wont my a64 3200+ run at 2.5ghz anymore?

Neolink

Neolink

Neolink

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i recently made the move to PCI-E, which involved me changing my mobo and graphics card, the old mobo was a neo2 platinum and it had no problems running my a64 3200+ at 2.5ghz. it was rock solid and never crashed, but now with this new mobo (epox 9NPA+ Ultra) it will happily run on 2.5ghz...until you stress it, then all i get is constant lockups :( this might be due to the amount of extra memory options this mobo has, ive never even heard of half of them and i've been overclocking for 6+ years so i have no idea what to set a lot of them to :confused: , so far i have tried upping vcore, upping memory voltage, relaxing memory timings and ive updated the bios. it is superpi stable and can get through 3dmark05 etc fine, its just when you have it under load for over 10 mins it cant seem to handle :( anyone have a suggestion?
 
Well as you suggested and as logic goes it may be down to the extra options being as the CPU, and memory are the same from your old setup.

The only other thing I could think it would be is the board is flakey at 250 HTT but im pretty sure the Epox boards are renound for being quite good clockers and majority of nForce4 boards have no issues with 250+ HTT.

Have you flashed to the latest bios?
 
yes the bios is the latest one from the epox USA website. its also certainly not heat problems as its currently sitting happily at 29c, raises to 34c when i stress it. i'll have a browse around and try and figure out what all these silly memory settings do
 
I think its something to do with the HTT multiplyer
I cant remmber its proper name but It will be in the CPU section.
It has 5 settings:
5x
4x
3x
2x
1x

Default is 5x, try sticking it on 3x or 4x, 3x will allow for a higher clock. this is what let my CPU run at 2.6!

MC_Bob
 
yes ive always had it at x4 and it was fine, theres no reason it should not be working at x4 now :( ill push it to 2.6ghz and lower it to x3 then and see what happens
 
My 3200 won't stably go past 2.35 on my 9NPAJ-SLI. It just hits a wall, and that's a poor overclock for that chip. So my overclock is a mystery to me and it's interesting you're having similar problems.

Are you running a divider on the memory?
 
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