Overclocking and Vista - works on XP, not on Vista

[wadewood]

So, I'm trying out Vista. I have the retail Vista Business Edition and set up a separate partition to try it out. System Specs are Biostar P965 MB, 2x512 Buffalo Firestix ram, E6300 CPU, 500 GB WD drive, 2 DVD drives, OCZ 700w GameXstream PS, Nvida 6600 PCIexpress Video, water cooled CPU and northbridge.

Running XP, I have overclocked and tested stable (memtest overnight, prime overnight, orthos) this system up to 7x510 Mhz. I have left settings at 7x500 and have been running XP with no issues since installing this setup (about 7 weeks).

However, Vista would not install or boot at these settings. I installed it by lowering settings. The Biostar P965 has a hole from 446 to 486 Mhz (? bootstrap issue) where bios will not boot at these settings. It works fine above and below this range. To run boot Vista I had to drop setting back down to 7*445Mhz. I have tried both the 32 bit and x64 bit versions of Vista with same result.

The question is what is Vista doing different that will not allow the system to boot? On startup, does it perform some type of system/CPU/memory test? Is anybody else having this issue?

 

[StopSign]

You never install an OS on an overclocked system.

 

[wadewood]

Originally posted by: StopSign
You never install an OS on an overclocked system.

I had said that I lowered settings to install Vista. I lowered back down to stock.

I am now booting with Overclocked settings and can select to boot into XP or Vista. Why do overclock settings work great with XP and will not boot Vista?

 

[StopSign]

How does it "not boot"? More info please.

 

[wadewood]

Originally posted by: StopSign
How does it "not boot"? More info please.

While Vista is starting, it has a a bar in lower portion of screen that flashes while OS is loading. When system is overclocked, it does not get past this, instead it reboots back to bios.

 

[genec57]

I installed vista without touching a setting and it is just as solid as with XP. OCed to 3600.

 

[rogue1979]

Originally posted by: StopSign
You never install an OS on an overclocked system.

If your overclock is 100% stable, there is no reason not to.

If it appears to run stable but screws up on OS install, then it is not stable.

 

[aka1nas]

Yep, your OC wasn't stable.

 

[BadThad]

Originally posted by: wadewood

Originally posted by: StopSign
You never install an OS on an overclocked system.

I had said that I lowered settings to install Vista. I lowered back down to stock.

I am now booting with Overclocked settings and can select to boot into XP or Vista. Why do overclock settings work great with XP and will not boot Vista?

Drivers.