Problem with new case+PSU!!!!

[Aya Brea]

My previous case+PSU (250w) run my Cely300A@450 without any problem but when I buy a new case+PSU (300w) it shutdown my PC after 2 or 3 minutes running!!!

I decide to run my Cely at its original speed and it run very stable (with new case+PSU).... My new case has no fan on it, so I think it's heat problem. Anyone know this problem before??? Can you tell me...

[outhouse]

Aya Brea (Apr 28, 2001 08:17 p.m.):
My previous case+PSU (250w) run my Cely300A@450 without any problem but when I buy a new case+PSU (300w) it shutdown my PC after 2 or 3 minutes running!!!

I decide to run my Cely at its original speed and it run very stable (with new case+PSU).... My new case has no fan on it, so I think it's heat problem. Anyone know this problem before??? Can you tell me...

Sounds like a heat problem to me but to find out for sure you can take the side cover off and aim a fan at your PC and see if that will keep it running longer if that works then it's time for you to do some serious cooling work.

[Karsta]

Other possibility is that your new PSU gives lower voltages.

This is what happened to me. I replaced my old trusty 235 W PSU with a new 300 W in hopes to get higher o/c. What happened was vice versa. The reason was that it was adjusted to lower voltages. It gave constantly less than 12 V, less that 3.48 V which is necessary for my memory - and about 0.05 V less than it should for Vcore under load. Now after burning the fuse of the new one I have the old back and the 866 MHz I was aiming at...