WINDOWS 7 64bit ultimate RTM RANDOM LOCK UPS

p6t deluxe v1 and a i940 and i kept having win7 rtm 64 lock up and i would have to do cold boot so i messed around with voltages of my cpu my ram bus voltage. and here is what works so far i got my cpu @ 1.35 volts my ram at 1.5 volts and ram bus voltage is at 1.64 volts xmp seting in ai bios setting. thanks to you guys my system is working [knock on wood]. i will post in a few days to let every one know how its going if u care to know

i still want to run prime 95 i think i will do that when i go to bed

Okay. I've ran Prime95 for a few hours, (normally it would lock multiple times an hour), and then it apparently stopped running unknowingly. I was surfing away, listening to music, then my computer locked up at 2:52 AM EST. When it locked I was like wtf, but then I realized that Prime95 must have finished it's task. I loged back in at 2:55 and fired up F@H.

What I'm getting at is that there seems to be an issue with the system being at 5% throttle. As I've been able to reproduce this after running Prime95. From what I can tell it only effects some multicore processors, but I'm not entirely sure at this point, we need to wait for confirmation about this from windew420.

diablofan said:

@Dave: My power setting shows that the minimum usage is set to 5%. I'm currently running Prime95 to see if it has the same effect as F@H. Also, F@H was set to 100% usage.

@zigzag: I'll turn down F@H to 80% if I have to run it to keep my computer stable.

@squonksc: That seems to be the theory it's evolved into, so if it turns out to be true, then we have a slight problem possibly.

@windew: Prime 95 does run on Windows 7, in fact I'm running it right now. There is also a 64Bit edition as well.

@Diablofan - Turn the 5% CPU up to 100% and do not run Prime95 or F@H and see how the PC behaves

magicdave26 said:

@Diablofan - Turn the 5% CPU up to 100% and do not run Prime95 or F@H and see how the PC behaves

Ok, I set it to 100% to see how it runs, I then restarted my computer in order to make sure it does use the 100% setting right from the beginning. I also have made sure that F@H and Prime95 aren't running.

darkassain said:

it might be a that a stepping in your cpu might not be getting enough voltage...
try throttling F@H until it locks up...
that would be the steeping that is freezing under (most likely the lowest stepping)...
i dont know if your intel chipsets allow for different stepping voltages (from the default) but it is possible in AMD's chips...
like people said you may want to up the voltages little by little (but dont go too far)
until you see the problem going away (i believe its the Vcore that need to be changed but dont quote me on that..)

I'll try that later after my computer locks up...if it locks up that is...

diablofan said:

Ok, I set it to 100% to see how it runs, I then restarted my computer in order to make sure it does use the 100% setting right from the beginning. I also have made sure that F@H and Prime95 aren't running.

Fingers crossed this solves it, but then again, I like the power saver feature and dont want this to be a bug

still running good im gona run prime95 tommorrow i forgot last night. yum win7 bliss. im not mad at asus no more lol. system has been running all night too

also in a forum on asus web site a guy said that 1.35 volts for my i940 is to much any one have any input on that? cause im running good!

ok i got another problem when i run prime95 the chip heats up into 90's so i shut off prime95 cause dont want want to ruin it. i also lowered i the cpu voltage to like 1.21-1.25 in that range. man it gets hot quick. any ways if someone has any ideas how i can get prime95 to not burn up my cpu so i can do a normal test all night.

Your problem appears to be solved.

Prime95 is heating up your machine because, in this application (use of the technology), that is what it does.

Doc, it hurts when I do this.
Don't do that.