Question about ATI RADEON HD 4870, PCI Express Video Card
I have a 650W powersupply and I run a Phenom 9650, ati hd4870 1GB card. it works perfectly.
So it seems to me either your 750W powersupply is worn out, or is poor quality, or your windows installation is messed up.
I would recommend you do a fresh install of windows into the computer.
If the problem still remains lets look at the power requirements of the 4870 X2
Quote - POWER CONSUMPTION While gaming with the HD 4870 X2 our test PC drew 521W
source : http://www.bit-tech.net/custompc/reviews/604626/ati-radeon-hd-4870-x2.html
so the card is sucking up around 550W from your powersupply alone - If you have a cheap 750w powersupply, that doesn't provide a stable 750W the powerdrain will be too much to keep the computer stable.
What I would recommend you to do, since a 1000W or 850W powersupply is not cheap. I would recommend you take the computer to a local shop or a professional or someone who has a 1000W powersupply.
Test the computer and the card with a 1000W powersupply, if the problems are gone, then we have figured out the problem, the card sucks out so much power, and the cheap 750W doesn't provide stable enough output (it probably gives 750W - PEAK power, so it goes around 690 to 750, jumps around there and doesn't provide the 750 constantly)
so lets assume your powersupply gives a good 680W , the card sucks 550 leaving you 130w which is not enough to run your hard drives, fans, cd/dvd drive, cpu, memory mainboard etc.
To me this appears to be a powersupply issue.
If these two things haven't solved the problem, I would have to work with the pc myself to find out the issue, but since that is not possible as I'm in finland, you will have to find someone locally to look into the system, as at this point, this is pretty surely a hardware issue, I would also recommend you test the ram on the computer. But a fresh windows into the computer and a more powerfull powersupply should solve the issue, unless the problem is somewhere else, you could try the X2 card on another system and see if the problems appear with another setup.
Posted on Sep 29, 2009
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Posted on Jan 02, 2017
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