OS - Windows 7 x64
Video Card - XFX Radeon HD 4870 Video Card - 1024MB GDDR5
Mobo - ASUS M4A79T Deluxe AM3 DDR3 AMD 790FX ATX AMD Motherboard
PSU - CORSAIR CMPSU-650TX 650W ATX12V / EPS12V
CPU - AMD Phenom II X3 720 2.8GHz
RAM - G.SKILL Ripjaws Series 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800)
HD - 2 SATA drives (Highly doubt it would be causing the issue, can provide exact models if needed)
Like the title says... thats the issue I'm having. I had left my PC running... mother came in to check it out my new rig and the monitor signal was lost then the PC shut itself down and started to reboot... it would reboot during startup and occasionally get to Windows 7, only to lose signal and reboot again (couldn't even get that far into BIOS with it restarting).
So.. at first I thought it could perhaps be my Power Supply as I remember that had something to do with random reboots...
So I pop open the case and turn it on to see if anything fishy is going on and... blam... the fan on my brand new Radeon 4870 isn't spinning up at startup with the card. I give it a flick or two and it starts spinning. The PC hasn't crashed since.
I just built this new rig on Friday night and it has worked flawlessly ever since... playing many games just fine on high settings with zero crashing. My mother comes to see how fast it is and it crashed thus.
What tests could I do? Could it be something else wrong? I've shut it on/off a few times and the GPU fan has worked fine since I gave it a little flick...
Any advice? Suggestions? I've read up on this card running hot... I'd rather not be stuck with a dead brick card so I'm trying to get this all squared off before I can no longer return it.
Let me make sure I understand you right: you're saying after you opened the case and gave the GPU fan a flick, it ran fine - right?
If so, then the case seems clear: without its fan, the graphics card ran hot, shut off, and forced the system into that reboot cycle. All that's going on is that that fan sometimes gets stuck. You could either watch it for a while (run HW Monitor on your system to watch the GPU temp) or return the card right away.
I think it's possible but rarely a good idea. That fan is matched with the card, and RMA'ing is going to save you money anyway. I know having to wait for it is hard. Maybe you have an old graphics card lying around somewhere?
Heh. Yeah, an old ATI x1850 but it won't work with Windows 7. I'm setting up the RMA now..
My other issue that I've found is that my g.Skill RAM isn't running at the proper speeds. Upon asking Google... seems like this is just something common and it isn't fully supported by my mobo... it said they were going to release support for it in an update also... trying to decide if I should just RMA the memory too...