Need help with my 9800GT graphics card

Okay, so the weirdest thing has happened to me. Out of some miracle, the graphics card worked yesterday. I was able to install my 3d apps and they worked like a charm. Today, however, I get the same problems that I had before. No input signal from the card. My bios has the PCIe as the first option. What can cause a graphics card to suddenly work then not work the next day? I'm happy that the neither the card nor slot are fried. Now I gotta see why my computer does not want to run from the card. I'm going to try what paulson31 suggested later today. I will update my situation later today.
 

My Computer My Computer

At a glance

Windows 7 (32-bit)
OS
Windows 7 (32-bit)
Okay, so the weirdest thing has happened to me. Out of some miracle, the graphics card worked yesterday. I was able to install my 3d apps and they worked like a charm. Today, however, I get the same problems that I had before. No input signal from the card. My bios has the PCIe as the first option. What can cause a graphics card to suddenly work then not work the next day? I'm happy that the neither the card nor slot are fried. Now I gotta see why my computer does not want to run from the card. I'm going to try what paulson31 suggested later today. I will update my situation later today.
The card could be broke, or the port could be as well. If you have warranty,return it.
 

My Computer My Computer

At a glance

Win 7 pro 64-bit, Ubuntu 9.10 64-bitIntel Core 2 Duo 2.60 Ghz4 gb ddr2 667 MhzNVidia Geforce 9400 GS 1 gb ddr2 550 mhz GPU
Computer Manufacturer/Model Number
Acer Veriton m261 (modded)
OS
Win 7 pro 64-bit, Ubuntu 9.10 64-bit
CPU
Intel Core 2 Duo 2.60 Ghz
Motherboard
Whatever came with the system
Memory
4 gb ddr2 667 Mhz
Graphics Card(s)
NVidia Geforce 9400 GS 1 gb ddr2 550 mhz GPU
Sound Card
Intergrated
Monitor(s) Displays
samsung SyncMaster 2494 24"
Screen Resolution
1080p
Hard Drives
80gb - IDE
750gb - SATA II
PSU
whatever came with the system
Case
whatever came with the system
Cooling
whatever came with the system
Keyboard
Apple Aluminium (Awesome)
Mouse
Some awesome Dell mouse, really good.
Internet Speed
100mbps
Sorry to necro this thread, but did you ever find a solution to this problem? I'm having what looks to be the same issue and nothing has worked so far.

Trying to get my XFX geForce 7950 in my Asus A8M2N-LA mobo.

PSU and card are good (I've tested), but I get nothing through the card-out, not even POST.. it defaults to my on-board graphics.

CUPID PC Wizard sees that the slot is occupied, and the card gets warm, but no signal.

Can anyone help?
 

My Computer My Computer

At a glance

Windows 7 Professional x64AMD Athlon 64 X2 4600+ 2.4 Ghz4Gb DDR2nVidia GeForce 7950gt
Computer Manufacturer/Model Number
HP Pavilion a1630n
OS
Windows 7 Professional x64
CPU
AMD Athlon 64 X2 4600+ 2.4 Ghz
Motherboard
ASUS A8M2N-LA
Memory
4Gb DDR2
Graphics Card(s)
nVidia GeForce 7950gt
PSU
Antec Earthwatts 750-Watt
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