No Display

[Matlough]

Just bought an HD5870 to replace what I thought was a broken HD 3870 and I seem to be getting the same problem (i.e no display not even boot info)

The only card that seems to work is an old basic PCI-E Asus card which requires no power, now I am thinking its either the power supply or the MB.


Is there an easy way to test or do I just have to try replacing power supply and then the MB?

(power supply is CORSAIR TX 750W)

 

[J-I-M]

Sounds like it's leaning in the direction of a PSU problem, going on what you've explained if the PCIE slot is working with an old asus card that doesn't require power from the PSU but the 2 cards that require power from it don't, i'd say it's the supply.

 

[Matlough]

Just performed the 'Paper Clip' test and fan spins up ok...... ???

 

[Phatzy]

paper clip doesn't do anything, it only turns the psu on.
You need to put load on the rails, try get psu tester or get a stop gap psu while your corsair is RMA'ed.