I /effectively/ have an ACER Aspire M3450 Computer, the only part in it thats acer is the motherboard, new case, new psu, new ram, new harddrive, Running Windows 7, i know, ancient right? I bought a EVGA GeForce GTX 740 SC 4GB GPU and when i plug it in, i get nothing. just a blank screen with a flashing white dash. I know the GPU works because i tested it in another system. I was told, by a forum, on here i think, that it was compatible, its /definately/ out of the warranty, ive had it sitting around for so long. i just tested it in a friends pc this morning, but i still cant get anything out of it in this computer.