Blank screen after installing graphics card

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DM404

Reputable
Nov 27, 2014
2
0
4,510
I just plugged in my VisionTek Radeon™ 7750 SFF 1GB x16 PCIe Graphics Card card on my Dell Vostro 460 and after powering it up the screen is blank. It seems like the monitor doesn't seem to recognize the video card at all.

I've tried the following based on other suggestions I was given:

  • Updated the BIOS
    Uninstalled the old ATI drivers before I installed the card
    Installed the new video drivers before I installed the card
    Set the resolution to its lowest setting and rebooting
    I even replaced the card thinking it was defective.
I should have a powerful enough PSU to run the video card (350W for my PSU and 300W for the video card according to the company's website).
None of these solutions works and I'm at my wits end. Does anyone know what might be the cause to this problem? Am I doing something wrong? Is the card incompatible?

Here are the specs on my PC
Dell Vostro 460
Intel(R) Core(TM) i5-2400 CPU @ 3.10GHz
Clock Speed 3.1Ghz
L2 Cache Size: 1024
Memory: 8GB
Hard Drive: 500GB
PCI-E X16 2.0
 
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junkeymonkey

Polypheme
BANNED
Nov 11, 2013
17,389
4
66,960
well you did what you could do but its dell that decides what work and what will not

some models of store bought computers [dell.hp,acer,ect..] may come with a ''locked or fixed'' bios and may not allow you to change certain hardware as a video card.. this is done to protect them from undue warranty claims and refunds .this is not done to hurt you but to protect them. you really need to see if that upgrade has been proven to work in your model first before you invest money in it .. there are a lot of these threads here at toms to look at some models will allow upgrades and some dont.. and a lot of guys here say ya ya ya when is really no no no...it would be sad you spent $200 on a card that wount post after you installed it as most find out. then get told its your psu and you spend more and end up right back where you are now, but its up to you good luck..


you got to know the the boards in these computers are not like the ones we use to do custom builds witch are open to upgrading with in the boards compatibly . the bios is custom made for there design and just for the parts they authorize to be used on there computers there only guaranteed to work as is out of the box as you bought it ,..

they don't care about you upgrading they sell computers -- if it works out fine then its good if not then you know better next time .. right??



 
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