My specs: Computer Unit - HP Pavillon HPE H8-1022 Motherboard - Pegatron IPISB-CH2 CPU - Intel Core i7-2600CPU @3.4 ghz OS - Windows 7 64-bit GPU - EVGA Geforce GTX 760 PSU - OCZ Fatal1ty 750W Memory - 10G RAM So recently I bought this new GTX 760 from EVGA and a new PSU (OCZ fatal1ty 750W) to meet the requirements (my old PSU was a 460 Watt. It wouldn't be able to run the card). I've had this computer since 2011 and never had a single problem with it. Upon installing the new hardware, when starting the machine, the HP start menu screen appears, followed by a beeping sound every 10-15 seconds and no response from the keyboard. Obviously the problem must have been with the new hardware, but no. Restoring the old ATI Radeon HD 6770 (the one that came with my computer unit when I bought it) while keeping the new PSU, my system boots and works just fine. All games and everything else works with no hassle. To test out the GTX 760, I installed it on another computer we have and it booted up and worked perfectly. So there hardly seems to be any issue with it either..! I tried updating my BIOS, I tried the whole bunch of different connectors that came with my modular PSU to see if that might do the trick, with and without the extensions included with the graphics card. The GPU is a 6pin + 8pin one, and both were always connected. After around 8-9 tries, where I checked each time to see if the connectors and the card were connected and fitted like they should, I ran out of options. Does the problem lie with the motherboard itself (an IPISB-CH2 by Pegatron), who might not be compatible with the GTX 760 or with Nvidia at all, or is it something between my PSU (its connectors maybe) and my Graphics card? I've found a lot of people with the same motherboard who're running GTX cards in the 500/600/700 series, so that might not be it. Maybe something with my unit in particular, or the card itself? EVGA support suggested updating the firmware using the other computer on which the new GPU worked. When trying a screen appears for 1 second and half just to disappear as fast. I managed to PrintScreen it and all it says is some warnings about not turning off the PC and that it's searching for Display Adapters to update just to shut itself right after. Any idea on how to make it work? I've found BIOS updates for my GPU as well online. Is it worth a shot? Here's what the tech said, if that's of interest : Also since you do have other computers at your disposal you could try updating the firmware on this video card. You will need to rename the file to 2673_5C.zip in order to access the zip contents. Once the video card has been updated try testing on the HP computer. Instructions on how to flash the firmware: Extract the files to a location on disk. Make sure no programs are running in the background, and double click update.exe. Press "Y", then ENTER to begin the update. DO NOT TURN OFF POWER OR RESET DURING THE UPDATE PROCESS! After update, restart PC. Thank you all!