GPU not being recognized/causing PC to not boot

JB420

Member
Joined
May 13, 2018
Posts
6
OK, so I just a new Radeon R5 220 for a new build, but when I installed it to the motherboard and turned the PC on, it caused the PC to not fully boot. Whether I had the monitor plugged in to the GPU or the motherboard, as long as it was installed to the motherboard, nothing would come on screen when turning on the PC. Everything internally would turn on a work perfectly fine, no random turn offs, no beeping. Like a "lights are on but nobody's home" kind of thing. Once I figured out that was causing it, I removed it and the PC started up just fine, which is weird in itself, but after I got Windows 7 installed, I turned off the PC, reinstalled the GPU into the motherboard, turned it back on, same thing. I then removed it and my PC turned on just fine. So I decided to just install the GPU drivers first, but the drivers wouldn't install from the disc, so I found it online. Everything seemed to be going ok, but then it said it couldn't detect any Radeon hardware. So I reinstalled the GPU and downloaded the driver again and it STILL said no Radeon hardware detected. Everything else works, hence the PC starting up just fine without it and me being able to type this. My recommended PSU size is 450, I'm using a 650, so it can't be that. Did Best Buy sell me a defective GPU, or is there something I'm missing?
 
Lenovo ThinkCentre M71E motherboard, Intel i5 3.3 ghz, 8 gigs of ram, 1 TB hard drive, basic dvd drive. And no, no other pc I can test it in.
 
Everything internally would turn on a work perfectly fine, no random turn offs, no beeping.
How do you know everything is working perfectly if it fails to boot completely? And note a successful POST (power on self-test) should result in you hearing 1 single short beep - if your motherboard has an integrated speaker (or you connected a speaker to it). According to this image, it does look like that board has an integrated piezoelectric speaker (that black round component just to the left of the small red jumper left of center, near the bottom).

My recommended PSU size is 450, I'm using a 650, so it can't be that.
Yeah it can. 650W is plenty big but you are assuming that PSU is working properly. Did you make sure both power connections from the PSU to the motherboard are tightly fastened? I would swap in a known good spare PSU if for no other reason than to rule out power issues.
 
@digerati, If you read my initial post, you'd see that it turns on and works perfectly fine without the gpu attached to the motherboard. And before I realised it was the gpu, I tested the motherboard without the ram, worked. I also thought it was the psu, so I replaced it. Also reset cmos. Also took everything out and put them back in one by one.

@softwaremaniac, I'll get that bios info in a couple hours.
 
@digerati, If you read my initial post, you'd see that it turns on and works perfectly fine without the gpu attached to the motherboard.
I did read that and it is not clear and it is not good to make assumptions - hence my question. Are you saying when you run with the "integrated" graphics, it works fine?

You can't test a motherboard without RAM. Sure, you can apply power to it, and some functions may work, but that does not conclusively test a motherboard.

Do you hear a single beep?

You might have to try that graphics card in another computer.
 
If it all worked before installing the video card and it all works if you remove the video card...................1st thing to check is the video card in another PC or another video card in this PC.
 

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