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64-bit = more stable?

S

ShawnD1

Lifer
I just made the switch to 64-bit Windows and I even bought an extra 4GB of RAM to go with it. Naturally, I stability test this stuff to make sure my OC settings still work in 64-bit and make sure the new RAM works. Everything works great and it passes 64-bit Linpack and 64-bit Prime95. I decided to play around with the OC settings a little just to see where the exact stability limit is in 64-bit since I like to keep a certain margin of safety. As I changed the settings, it seemed to run fine even at speeds that were not stable in 32-bit testing. Before the upgrade, my Phenom X6 1055 was running at 240MHz bus and the CPU voltage had to be 1.500V just to maintain this. After 64-bit, the system can now run at 250MHz bus but the voltage can be dropped to 1.45 and the system can run 64-bit Linpack all day and night without an error.

Any explanations for why the system seems more stable now? Is the 64-bit version of Linpack less stressful than the 32-bit version?
 
Maybe you were ram limited before?

You did change the OS, but also the ram.

But I also have Win7 64bit and am very happy with it.
 
Yes.. coz 32 bit dont support 4 GBS...
You have to upgrade to 64 bit if you are using 4 GB ram..
and i guess so.. 64 bit is slighter better than 32 bit in performance all the way... you can overclock better in 64 bit.
 
Marlin1975 said:
Maybe you were ram limited before?

You did change the OS, but also the ram.

But I also have Win7 64bit and am very happy with it.
Click to expand...

The old memory is still in the computer, and new memory was added on top of that. It should still crash at the same frequencies shouldn't it?
 
Ben90 said:
Definitely not. Anyone attempting to break benchmark records does so on a 32 bit operating system, unless the application specifically benefits from 64 bit.
Click to expand...

Pretty much this 32 bit allows for larger overclocks generally. Its strange that the OS change influenced your OC so much.
 
ShawnD1 said:
The old memory is still in the computer, and new memory was added on top of that. It should still crash at the same frequencies shouldn't it?
Click to expand...

While you might have the same memory installed the new memory may have changed your timings, which would change the timing on your old memory as well.

My guess is that you have softer timings now, hence the newly found headroom.
 
it could also be that your ambients are cooler than before, allowing a higher overclock because your silicon isn't as hot as it was before.
 
BD231 said:
While you might have the same memory installed the new memory may have changed your timings, which would change the timing on your old memory as well.

My guess is that you have softer timings now, hence the newly found headroom.
Click to expand...

Makes sense. Thanks for the replies everyone 🙂
 
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