Video cards won't be recognized on gateway dx4870 pc

DesperateUser · Jul 6, 2014

My computer is a gateway dx4870. I've seen tons of people post on here with similar problems with very little luck, and perhaps they found the solution on their own and never bothered to post back here.

I'm running Windows 7 Home premium.
I've updated my BIOS to the newest version.
I have a 500w power supply so power isn't an issue.
I've bought two video cards, an Nvidia GT740 and a Radeon R7 250x.
I thought it might just be nvidia, so i returned it. I bought something else instead in hopes that it was the card and a hardware thing. no such luck.
the card is seated firmly. the card shows a green dot signifying power as well as the fan turns on.
There is no "secure boot" option in my BIOS for me to turn off. or a legacy option for that matter.
i've disabled my onboard video card in control panel.
my VGA cable is connected and is not bad because it works in original VGA connection for the onboard video card.

any thoughts on what it could be? i've tried everything and am at wits end. maybe i should update my OS to windows 8 so i could disable secure boot? that seems like a lot of work.

stridervm · Jul 6, 2014

I know this is kinda idiot-proofing but..... Do you know that in high power video cards there is a cable that goes from your Power Supply to the video card? Have you plugged it?

DesperateUser · Jul 6, 2014

absolutely. i have it plugged in, and the video card shows that it has power as well as the fan turns on.

clutchc · Jul 6, 2014

Some OEM PC manufactures "lock" their BIOS so it will only recognize cards that they sell as upgrades. They do this for profit and to protect themselves from damage claims.

DesperateUser · Jul 6, 2014

is that the case with my Gateway pc? if so, is there some way to circumvent this "lock"?

honestly, that would make so much sense. it feels like i've tried everything under the sun with no such luck.

clutchc · Jul 6, 2014

DesperateUser :

No, not that I am aware of. The BIOS chip would have to be changed; not a job for the average person.

DesperateUser · Jul 6, 2014

certainly out of my expertise.

hmm.... i'm rather at a loss for what i should do. thanks everyone for your help, your responses have been fast and greatly appreciated.

if anyone has any suggestions, i'm always open to what input you have to say.

stridervm · Jul 8, 2014

To clarify, I saw in your first post that the video is disabled in "Control Panel" . As you saying this is from Windows? There should be a setting in the BIOS (It depends on the motherboard manufacturer, but typically it's DELETE KEY or F2 on the very first screen before Windows boots up) that disables the onboard video. Just removing it via control panel in Windows will not do it.

Search

Video cards won't be recognized on gateway dx4870 pc

DesperateUser

Reputable

stridervm

Distinguished

DesperateUser

Reputable

clutchc

Titan

DesperateUser

Reputable

clutchc

Titan

DesperateUser

Reputable

stridervm

Distinguished

TRENDING THREADS

Latest posts

Moderators online

Share this page