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Pci-e graphics card not detected?

Last response: in Motherboards
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December 20, 2011 4:15:51 PM

I bought a new motherboard and when i put in the 6600gt, there is no signal. While the 6600gt card is still in, if i switch the vga cable to onboard, it has signal and shows windows booting. I think there might be a problem with the psu (6 years old) as it is old and only has 300 watts or it could be a motherboard problem but im not sure. The 6600gt works on other motherboard that is old.

MSI GF615M-P31
AMD Sempron 145 2.8ghz Sargas
2G DDR3 PC10600 RAM
OCZ Onyx 32gb SSD
PSU 300W
NVIDIA 6600GT 256MB
a b U Graphics card
a c 121 V Motherboard
December 20, 2011 5:08:50 PM

You're right it could be the PSU, but since the cable works with onboard sound I would suggest going into the BIOS and set the video device to a PCIe device. See if that helps at all.
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a b U Graphics card
a b V Motherboard
December 21, 2011 3:35:30 AM

itzdanielp said:
I would suggest going into the BIOS and set the video device to a PCIe device.

This. Take note it should be under a heading called "Primary display device" or something similar.

Then remove the dedicated video memory in BIOS to allow you to use the 2GB RAM you have to full capacity.
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December 21, 2011 5:02:34 AM

Although ive already did all of this, it still does not work. Today, I also got a new psu 500w so we can rule that out. Im probably just going to assume that it is a defective motherboard. Thanks guys for your help.
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February 11, 2012 4:32:25 PM

Dont assume anything as it makes an 'ASS'- out of 'U' and 'ME' :D 

Let us know the result so others can learn from your thread...
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