Overclocking slowed my drives?

[alexb75]

My system is a Asus A7N8x rev. 1.06 with Barton 2500+ and WD800JB.

I just got some new memory capable of 200 MHz+ (HyperX), so I overclocked the system. I have my FSB raised from 166 to 200 and have my CPU multiplier at 11 (200*11=2200). Raised mem voltage to 2.7.

So, basically overclocked the Bartin 2500+ to 3200+. The system is stable and runs 3dmark and other benchmarks fine.

The problem now is the IDE access is WAY TOO SLOW. It's like there's a delay when requesting a file or something. For instance when I open word for the first time (from HDD), it's FREAKING slow. When I open it again (resident in memory) it's lightning fast. Ofcourse, I know the second case must be faster, but the first case compared to when I was runnig 166 is WAY SLOWER.

Any help is appreciated!

[@md0Cer]

Im not sure, but I know the Nforce2 chipset motherboards have a PCI lock feature so when you overclock, your AGP and PCI (IDE controller is part of PCI bus (southbridge) ) it keeps them running at stock speeds. I don't know, but there may be a way to enable/disable this feature in the BIOS or via a jumper on the motherboard. My thoughts are that this is disabled and your PCI is running over 33Mhz causing some troubles. I know that when it gets from 35 to 38 you get errors where you have to reformat and things get corrupted. So I was thinking was that maybe some things might be getting corrupted and slowing it down.

If this feature is not changeable and it always on then I guess that blows that theory.

Good Luck!

[fiji]

well why dont you get a hdd benchmarking software and run it while the computer is overclocked and not-overclocked?

[alexb75]

I did, results are the same (very close).

I restarted a couple of times, and it seems to be fine now. Still behaving wiered though.

I also couldn't find the PCI freq. setting! Anyone knows where to set it on Asus A7N8x BIOS?

[johan851]

Have you tried defragging it? That could easily be the problem.

The nForce2 shouldn't be able to disable the PCI lock, or at least I haven't heard of any boards that let you disable the it.

[alexb75]

Ok, I think I fixed it.

First ran Scandisk and it found a few problems that needed restart. Then it still was slow, I realized it was the stupid indexing service and I turned it off but for some reason it still didn't stop until next restart. It's fine now!

BTW, does anyone know what's FSB Spread Spectrum?

Thnx for all the help