Hello, I have an old Alienware at home that I use as a media computer on my Tv. I had a Sapphire Radeon 7990HD in it and it was running really good (a bit of overheating in the summer, its not a really great cooling case). I bought a new computer and installed my Sapphire in it. For my Alienware I bought a used Asus GTX 650 TI 2gb from a friend that I trust and installed an OCZ Vertex 60gb SSD that was running my linux. I formated it with a brand new Windows 10, the same as my new computer and it work great so its not the windows. So my problem is this, after all the driver updates and windows updates, my pc will randomly restart (when I open a browser, a game, a movie, anything). It brings me back to my windows login screen, It will restart after a shorter period of time each time to the point where my pc freeze at the login screen and i cant log on my computer. I shut down my computer, wait a couple hours and its the same cycle. I was able to have a 3h gaming session on it without a problem, its only when i open a program that it reboot. My PCIe slots are setup like this (x16, x8, x8). when i put it in a 8x slot it seems to works without a problem but i want the best performance possible. I aslo have a 4 usb addon port PCIe with a molex connector that i put in one of my 8x slot. I dont think its overheating, it could handle a 7990... and i was able to play a long time without a problem. Here are my specs, I Boot my program from an Internal HDD. Thanks =).
Asus PT6 Deluxe V2 Motherboard
Corsair Tx750W Power Supply
Intel i7 920 CPU
6GB DDR3 SDRAM at 1333MHz - 3 x 2048MB
Alienware® P2 Chassis
OCZ Vertex 60gb SSD
Seagate 500GB SATA 3Gb/s 7,200RPM 16MB Cache
Asus GTX 650 TI 2gb
Asus PT6 Deluxe V2 Motherboard
Corsair Tx750W Power Supply
Intel i7 920 CPU
6GB DDR3 SDRAM at 1333MHz - 3 x 2048MB
Alienware® P2 Chassis
OCZ Vertex 60gb SSD
Seagate 500GB SATA 3Gb/s 7,200RPM 16MB Cache
Asus GTX 650 TI 2gb
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