Recently, my graphics card ”Geforce 7900 GTX” PCI-e 1.0 started having problems with 3D programs, it is working fine with 2D programs. So I thought it was time to upgrade. My motherboard has a PCI Express x16 1.0 slot. I checked out the net and it seems that graphic cards with PCI-e 1.0 are almost extinct. I did a small lookup and found that PCI-e 2.0 graphic cards are supported by motherboards with 1.0 slots.
So I bought a new graphics card, “ASUS Geforce ENGTS250 Dark Knight” PCI-e 2.0. I’ve done graphic card upgrades before so I know the procedure (uninstalling older display drivers first and so on). When I inserted the card in the 1.0 slot and connected the extended power supply (the same that was used by 7900 GTX) and started the computer, all I got was a blank screen. The cooling fan turns on and runs for some seconds and then turns off. On other restarts it continues to run.
I also tried starting without connecting the extended power supply for the graphics card. What i got was a continuous beep from the computer. I don't know what that beep means in terms of POST error. Maybe someone can clarify. What is interesting here is that i don't get this beep when i start the computer with 7900 GTX without power supply.
When I re-inserted the old 7900 GTX, it worked fine.
I read on the back of the box for the ASUS ENGTS250 that it requires a minimum 450 W system power supply (with 12 V current rating of 24 A). After reading this, I checked the specification of my PSU. This is what I found:
Delta Electronics , INC
Model: DPS-460DB A
Input 100-240V ~/8A
Output +5V /13A
Max Power: 460 W
MAX.Combined POWER ON +12Va, +12Vb,+12Vc EQUAL TO 385 W
After reading this I get the feeling that it’s my PSU that is the issue here, but I am not so sure. Specially because I have inserted a PCI-e 2.0 card in a PCI-e 1.0 slot.
I need someone’s opinion someone, who has had a similar experience. Please Help!
Here is some more info on my hardware:
The computer is a HP d4580.se.a, check out the link
did it say max power = 460w?
then the problem is there....
that rating will be done at a very low temp and also max power means its not the power which it can supply in full load and continuously...
try using a different psu may b get one from a frnd nd see if it wrks..
and also asus gts250 dk is a factory overclocked version so it consumes more power...