I just got a new graphics card to replace my old 8600gt, and I went thru the standard protocol for installing a gpu (uninstall old drivers, remove card, etc.) When I put my new card in, I get no signal at all from my new graphics card. I can put my old gpu back in and I get a signal, but with my new one I get no signal to my monitor whatsoever. I am using dvi to vga adapters on both cards.
I have onboard video, but that can't be the problem since my 8600gt works with it
I can verify that the new card is properly seated, powered, and running
I have 550w psu, so I have adequate power
I made sure I completley uninstalled all drivers and files using driversweeper before putting new card in
Does anybody have any idea how to fix this? I have tried almost everything and I am running out of options. Please Help!
try both the dvi slots. And make sure nothing got moved around while u were installing the card ex check ram to see if its seated properly. oh ya make sure the dvi/vga connector doesn't have any broken pins.
Had the same problem when I would reinstall my 8800gtx's. I would totaly disconnect the dvi cable turn off and unplug the monitor reconnect the dvi cable plug in the monitor and turn it on worked for me on numerous occasions.Hope this helps
Can you list your motherboard model please? (I would like to look up your Bios)
As you said it would be odd and unlikely to get 2 defective cards and I don't think power has anything to do with it because the card uses a very small percentage of its power at idle. (Even if the PSU was severely too small for the 4850, it would still power it enough to show video at idle.)
I think it is a problem w/ the onboard video. For some reason, when I put the 4850 in, it enables onboard video but when I put my 8600gt in, onboard video is disabled and I get a signal from the gpu. This is really weird, anybody else got any ideas?
And I think my psu is good enough, I am running a processor that doesn't take much power, one optical drive, one hard drive, and 3 120mm fans
Since you RMA's your first video card, it is probably due to 1) Your power supply not providing enough power to your video card. or 2) Your bios and/or motherboard somehow does not like this video card. What is the model of the motherboard and the CPU you have?
According to their website, their minimum is a 450 watt power supply. I don't know how your power supply is working, but it might not be providing enough power to the video card. I would try to unplug the power from fans, dvd rom, and the hard drive to see if it works or not.
I don't think it's his PSU.
Sure Rosewill are far (FAR) from the greatest, but that specific PSU's got good reviews, is SLI certified and certainly has enough juice to run the card.
Plus, one of the reviewers has a 4850 and it powers it just fine according to him.
I'd do what helios suggested.
Disable the onboard video from the BIOS, there should be an option there.
We can guide to where it is if you give us the name and model of your motherboard.
Also, as previously suggested, try clearing the CMOS.
I know the card is getting enough power. I can hear the fan running, see the fan running, and can feel the warmth of the card. I know the minimum specs are 450w but my psu is 550w and I am running a very low power system. In fact, before I got this card, I was able to run my whole system (including the 8600gt) on a 300w power supply.
Here are some pics of my bios, I can't find an option to disable onboard video anywhere:
taken on my phone, sorry about the quality, but apparently Print Screen doesn't work in the bios
main screen of bios:
under 'advanced' tab
'advanced features' under 'advanced' tab
'integrated peripherals' under 'advanced' tab
'PnP/Pci configuration' under 'advanced' tab
I really don't see an option anywhere to disable video, maybe someone does?