And when I put them together and turn on the power, the monitor doesn't not detect any signal (dvi).
so I switched the dvi cable to the on-board graphic card then the monitor can display but the device manager only detects ob board graphic card.
then I put back gt 130 and it works perfectly as before.
then I tried putting 7850 back then same issue (monitor doesn't detect anything)
I can see the fans are running on 7850
I think that PCIe slot is a 1.0. Some new cards have issues running on that. You may need a new motherboard to run that card. You can try doing a bios update and check for any new chipset drivers, but I don't think you can get a high-end video card running on your stock HP OEM motherboard.
If you can, try the card in another PC, one with a motherboard made for gaming systems. Or fine a higher end card with a PCIe 2.0 or lower interface to try.
I tried that alr..
1. I connect dvi cable to on-board graphic card so that I can see the BIOS setting on display.
2. change to PCI-E in BIOS
3. shut down and changed cable to 7850
4. start the cpu again but no display on monitor.
okay guys. I decided to get help from a shop and found out that 560ti doesn't work on my old OEM motherboard too.
I bought a new motherboard gigabyte s-series and left everything at the shop to have them put all together.
I'll go get it tomorrow and post the results.
Just took back my pc from shop. I had to RMA the GPU yesterday also. The technician from shop says smoke came out of it after abt using for 30min. Btw I had to change motherboard as well. $_$
Now everything seems fine at the shop.
Thanks for all the help guys.