- Dec 29, 2000
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OK, first off. I put this 2.66 into my existing system (see sig) that runs my 2.26 at 160FSB, Vcore set in BIOS at 1.55V. It runs 100% stable, Prime95 and anything else I throw at it.
Put in the new 2.66 (using my existing Alpha 8942 + ASIII) and set my Vcore in the BIOS to 1.6V and FSB at 150. Booted into Windows fine, runs programs fine but errors out in Prime95 (v2.29) in less than one second. Tried up to 1.65V in BIOS and it still fails Prime95.
Started lowering FSB (set Vcore back to 1.6V) until Prime95 would run. Ended up at 145FSB. Ran Prime95 for 10 hrs with zero errors. Max CPU temp was 51C.
Now what? Do I "burn this in" for a while and try again? If so, how long, at what FSB and voltage?
Re: voltage:
One thing I noticed is that Vcore varies quite a bit. PSU is Antec True480. When I set Vcore in BIOS to 1.6V, in Windows it shows up as 1.63/1.65 at idle in MBM5. At load it runs 1.54/1.57V. Is this normal?
I haven't seen these kind of voltage swings with my previous P4 Northies (several 1.8As and a 2.26B).
When you guys talk about "max Vcore" does that mean what is showing in Windows, at load in MBM, or does that mean what is showing in the BIOS (presumably at no load)? There is a big difference on my board (Asus P4b533E). BIOS set at 1.6V shows 1.6 in BIOS, 1.63/1.65 at idle in Windows/MBM5, 1.54/1.57 at load. What is right? Which matters?
I also tried using Asus' molex 12v connector on the board as an extra source of 12v. Several people have suggested doing this. It has made no difference to my idle or load Vcore as shown in MBM5. Only difference I can see is the very initial voltage right after Windows is done booting and MBM loads is about .05V higher. I still can't run any faster than 145FSB since I tried this.
Put in the new 2.66 (using my existing Alpha 8942 + ASIII) and set my Vcore in the BIOS to 1.6V and FSB at 150. Booted into Windows fine, runs programs fine but errors out in Prime95 (v2.29) in less than one second. Tried up to 1.65V in BIOS and it still fails Prime95.
Started lowering FSB (set Vcore back to 1.6V) until Prime95 would run. Ended up at 145FSB. Ran Prime95 for 10 hrs with zero errors. Max CPU temp was 51C.
Now what? Do I "burn this in" for a while and try again? If so, how long, at what FSB and voltage?
Re: voltage:
One thing I noticed is that Vcore varies quite a bit. PSU is Antec True480. When I set Vcore in BIOS to 1.6V, in Windows it shows up as 1.63/1.65 at idle in MBM5. At load it runs 1.54/1.57V. Is this normal?
I haven't seen these kind of voltage swings with my previous P4 Northies (several 1.8As and a 2.26B).
When you guys talk about "max Vcore" does that mean what is showing in Windows, at load in MBM, or does that mean what is showing in the BIOS (presumably at no load)? There is a big difference on my board (Asus P4b533E). BIOS set at 1.6V shows 1.6 in BIOS, 1.63/1.65 at idle in Windows/MBM5, 1.54/1.57 at load. What is right? Which matters?
I also tried using Asus' molex 12v connector on the board as an extra source of 12v. Several people have suggested doing this. It has made no difference to my idle or load Vcore as shown in MBM5. Only difference I can see is the very initial voltage right after Windows is done booting and MBM loads is about .05V higher. I still can't run any faster than 145FSB since I tried this.
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