Hi,
I have an old HP DC7600 which has one PCI Express x16 slot. (ooooold Pentium 4 machine)
I have an old random graphics card which has worked just fine in this slot.
- I got hold of a slightly better card - Asus EAH4850 Matrix (HD4850 basically) with 512MB ram.
I can boot the pc up just fine;
- without any PCI E card
- with the older misc card
I cannot boot it up with the HD4850, and all the fans in the PC starts spinning - then stops - then starts (ad infinitum).
There is nothing on the screen, not even a POST message or BIOS, F-button prompt or anything...
- if I use the onboard VGA plug after taking out the HD4850 it works just fine.
- I am 99% sure the GPU is fine, since I took it out of a working rig.
In search of an answer or solution I tried getting a 450W new PSU (brand: XFX). - The GPU has 1x6pin power connector, and draws around 225w from what I can tell from the specs.
However, I am down to this either being a short somewhere on the Motherboard - or something I haven't thought of.
There are no obvious shorts, and I have tried semi-breadboarding (the DC7600 does have the motherboard mounted on a little metal plate easily removed from the rest of the tower).
Any ideas would be welcome. I suspect a faulty Motherboard, but I don't fancy throwing money at one after getting a new PSU if it could be avoided..
Thank you in advance
I have an old HP DC7600 which has one PCI Express x16 slot. (ooooold Pentium 4 machine)
I have an old random graphics card which has worked just fine in this slot.
- I got hold of a slightly better card - Asus EAH4850 Matrix (HD4850 basically) with 512MB ram.
I can boot the pc up just fine;
- without any PCI E card
- with the older misc card
I cannot boot it up with the HD4850, and all the fans in the PC starts spinning - then stops - then starts (ad infinitum).
There is nothing on the screen, not even a POST message or BIOS, F-button prompt or anything...
- if I use the onboard VGA plug after taking out the HD4850 it works just fine.
- I am 99% sure the GPU is fine, since I took it out of a working rig.
In search of an answer or solution I tried getting a 450W new PSU (brand: XFX). - The GPU has 1x6pin power connector, and draws around 225w from what I can tell from the specs.
However, I am down to this either being a short somewhere on the Motherboard - or something I haven't thought of.
There are no obvious shorts, and I have tried semi-breadboarding (the DC7600 does have the motherboard mounted on a little metal plate easily removed from the rest of the tower).
Any ideas would be welcome. I suspect a faulty Motherboard, but I don't fancy throwing money at one after getting a new PSU if it could be avoided..
Thank you in advance