pcie 3.0 issues

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The Canadian Prince

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Jul 8, 2013
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Got one for all you techies. A friend of mine got a new graphics card, and he is having trouble with it. Every time he turns on the computer, the monitor says no signal detected. Then as soon as the windows log on screen comes up, the display comes on. This obviously is a problem due to the fact that he can't see anything when he goes into BIOS, or boots from a CD, such as the windows setup DVD. I am confident that the psu, is more than enough to run the card. I think the culprit is that the mobo is too old to use pcie 3.0, but the last gpu he had was a 2.0 card, or he has to use a HDMI cable instead of DVI. I tried using my monitor thinking it might be a problem with either the cable or his monitor, but it didn't work. Tech support is NO help at all. They wanted me to use windows programs to diagnose the issue, and were telling me it was a driver problem. But how could that be, when replacing the hard drive with a blank drive, so there is no OS, doesn't fix it? I am really banging my head against the wall on this.

Any help is appreciated, please hold back smart ass remarks, but other than that no question or answer is stupid.


Update: Sorry, thought i mentioned the specs. It is an Acer Aspire t3600 with a quad core intel cpu. Aftermarket Thermaltake PSU, and a gt 640. The 2 gb edition
 
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smorizio

smorizio

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Jan 22, 2010
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I Seen this issue before on some rigs. It a bios bug-gpu bug. What your seeing is the onboard video chipset is being the main chipset at post then falling over to the new gpu. Some things to check,try are update the bios on the mb. Check that the primary video still set to peg...pci in the bios.
In the bios see if the video slot can be set to pci 2x mode. A lot of the newer cards and some mb chipset flake out in pci 3x mode but run fine in the slower mode.
 
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T

The Canadian Prince

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Jul 8, 2013
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I think the bios is the most updated version. Assuming that I would have to get it from the Acer website. The bios is very basic, I see nothing about video or pci express. I tried looking at the board for jumpers, the only ones I could find were for clear cmos, and something called wps, or something like that. It had to do with bios as well. When they sold him the computer, it had a cover over the on board video port, and a sticker that said disabled. I see no reference to the gpu in system, and couldn't find any stats on it in bios. I think I might have to totally strip the computer, and examine the board closely. Which is a task I am not looking forward to doing.

 
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T

The Canadian Prince

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Jul 8, 2013
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10,530


I tried connecting the monitor to the old vga port, without the new card installed. There was no visual at all. I am going to strip this computer tomorrow, and see if I can find some jumpers or switches that I can use. If I read gpuz right, there is only the nvidia card listed. If I can't find anything, I am just going to return the gpu, and buy him an AMD card, which is what I should of insisted on in the first place.

Really, I wish he had just hired me to custom build him a computer. It would of been much easier.
 
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