Wierd overclocking problems...

[Jonny]

Righty ho, I have;
3000+ Winchester
MSI K8N Neo 2 Platinum
2 x 512 Corsair TwinX 3200XMS
Stock Cooling.

I set out to overclock the system, and began by finding the max speed of each component.
CPU topped out at ~2370, RAM at ~260, and motherboard seemed limitless.
It was ok to run at 1000 HTT.
I decided that I would reduce the HTT multiplier to 3, and run the HTT at 240.
This would keep every part of the system within it's limit.

But no!

I can only reach 225 Mhz before the system reboots if i'm using clockgen, or doesn't boot at all if I'm using the Bios.

Why is this? Extra voltage doesn't seem to help, and I don't think it's overheating.

I have no idea what is holding it back, as I believe that all my components are sound well beyond this speed!

Thanks for any help.

[ifyouknowme]

that is strange

weve overclocked a k8n plat very effectivly before and we never incountered that problem u could try loclking the pci frequencys and agp and ram to standard or just over standard

[RavenNight]

It could be your mobo, the overclocking of components varies massivley even between identical items. My mates AMD 3000+ is stable with stock cooling 300MHz more than mine.

[Jonny]

I tested the max speed of the Northbridge by dropping CPU multiplier to 3 and RAM divider to 100 and increasing HTT. I got bored and stopped before it even crashed once - it was easily over 400.

[Beer Moon]

You did them separately, now try them 2 at a time. See if you can get teh CPU to go over HTT 225 with a memory divider to keep the RAM at a lower speed.

The CPU might have gone up fine on it's own, but that's no guarantee that the Winny mem controller likes running at that higher speed. If you were able to up the CPU higher before with a low memory divider, try that again, and just up the HTT speed.

A64's don't care all that much about the bandwidth anyway. If you can get the CPU to OC stable with the memory on a divider, then do it.