graphics card not being detected in device manager or giving video output (hd 7470)

[popeye16]

I have an old hp pro which i bought a Radeon hd 7470 for to help with basic gaming and YouTube. when i installed it it was on 100% fan all the time, didnt give a video output and wont be detected in device manager. i have installed the hp support software (which didnt help at all), manually updated the bios, installed the amd gpu patch driver and the official hd 7470 graphics driver and even manually cleaned the pcie connector and port but so far have had no luck getting it working.

[Paul_Tikkanen · Accepted solution]

Hi:

That PC is too old to run a Radeon HD 7xxx series graphics card.

Those require a UEFI BIOS which your PC does not have.

The newest Radeon HD graphics card you could install would be the HD 6450.

The specs for the model indicate the supported graphics cards were:

• ATI Radeon HD 4350 HDMI (512MB) FH PCIe x16 Graphics Card
• ATI Radeon HD 4550 (512MB) DH PCIe x16 Graphics Card
• ATI Radeon HD 5450 (1GB) FH PCIe x16 Graphics Card
• ATI Radeon HD 5450 (512MB) FH PCIe x16 Graphics Card
• NVIDIA GeForce G210 HDMI (512MB) PCIe x16 Graphics Card
• NVIDIA Geforce GT220 (1GB) FH PCIe x16 Graphics Card
• NVIDIA GeForce GT320 (1GB) FH PCIe x16 Graphics Card

[popeye16]

Well thats unfortunate. Card only cost me £12 so not a big deal i guess, could always use it in a later project. Thanks 

[Paul_Tikkanen]

You're very welcome.

The HD 6450 should cost about the same on eBay.

[popeye16]

After trying the card in my main gaming pc with a modern motherboard i have found that the card is straight up dead. Either way buying a 6450 solves the problem and is prbably the safest bet.

[Paul_Tikkanen]

At least you know exactly what the problem was, but I agree that the HD 6450 has almost a 100% guarantee of working in your PC.