MOBO POSTs but Windows loading screen gets pixelated - can it be MOBO's fault?

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Marek Ogarek

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Jun 23, 2013
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When trying to fit a modified GPU I used a bit of force (but didn't hear or feel anything break). Later I removed the modification and tried to turn on the computer. It POSTed, started loading Windows but screen got pixelated.
Then I replaced graphics card for a new one. No change.It POSTed, started loading Windows but screen got pixelated. It doesn't work even in a different PCIE slot which I didn't try to force anything in (I know that PCIE works, I used it a few months ago).
I didn't even touch PSU, RAM or CPU since the last time computer was working. New GPU needs even less power than previous one so I doubt it's a problem with not enough power.
I don't want to wait for a repair place to determine the cause (they are very slow in my country) and was wondering how probable it is that a new MOBO will fix the problem.
EDIT:
Also, MOBO is GA-970A-UD3, new GPU is GTX 1050Ti (old one was HD7770).
 
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M
After some time I finally realized that it was my SSD's fault. It got corrupted so Windows couldn't load properly, hence the weird pixelation during Windows loading. Reinstalling system solved the issue.
Psoting in case somebody gets here after google search.
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Marek Ogarek

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Jun 23, 2013
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Not really pertinent in my case (besides seating GPU correctly), which you would know if you actually read my whole question. (Because it worked before and only thing that changed was messing around with GPU)
Still just in case:
1.Yep
2.Yep
3.Yep
4.Yes.
5. My version of 1050Ti doesn't need power connector (Pallit KalmX)
6. Yes
7. Yes
8. Yep
9. Had a good laugh at least.
10.Yep
11. Yep
12.Took heatsink off to check.
13.Yes it is.
14. Yes
15. No
16. I leave power plug in out of laziness. I don't specifically try to touch case before working but I do have to put it sideways so it just happens on its own.
17. No signal because it POSTs fine
18.Yes
19.Yes
20.Yes
21. Did it after some googling
22. Don't have one
23. Done


"Pull everything except the CPU and HSF. Boot. You should hear a series of long single beeps indicating memory problems. Silence here indicates, in probable order, a bad PSU, motherboard, or CPU - or a bad installation where something is shorting and shutting down the PSU.

I heard it.

To eliminate the possiblility of a bad installation where something is shorting and shutting down the PSU, you will need to pull the motherboard out of the case and reassemble the components on an insulated surface. This is called "breadboarding" - from the 1920's homebrew radio days. I always breadboard a new or recycled build. It lets me test components before I go through the trouble of installing them in a case.

PSU doesn't shut down

If you get the long beeps, add a stick of RAM. Boot. The beep pattern should change to one long and two or three short beeps. Silence indicates that the RAM is shorting out the PSU (very rare). Long single beeps indicates that the BIOS does not recognize the presence of the RAM.
If you get the one long and two or three short beeps, test the rest of the RAM.

Only one stick

If good, install the video card and any needed power cables and plug in the monitor. If the video card is good, the system should successfully POST (one short beep, usually) and you will see the boot screen and messages.

As I wrote before it POSTs successfully.
 
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clarkjd

clarkjd

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Dec 7, 2005
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I know that most of the steps do not apply in this case, BUT as we can neither see nor touch your system, we need some basic steps to rule out simple mistakes or errors. When working on your PC, we have no idea what may have been touched, moved, accidently disconnected, or other issue, and the list helps eliminate those issues. Now, back to the list: You say that on step 17 there is no signal because it posts fine. But even a good post comes with one short beep, if you have the speaker installed. So either you DON'T have the speaker installed ( or you neglected to mention it)or your post is NOT fine.

The answers help us to help you!

 
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Marek Ogarek

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Jun 23, 2013
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I neglected to mention that my case doesn't have a speaker. Completely forgot about it; it's been a long time since I put my MOBO in the case.
 
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clarkjd

clarkjd

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Dec 7, 2005
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The speaker is very important. It can reveal problems that can't be found otherwise. Unless you get that single, good post beep, you really don't know what the issue is. In fact, some of the later steps in the list depend on the beeps, or lack thereof, to give meaning to the other steps.

 
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M

Marek Ogarek

Honorable
Jun 23, 2013
33
0
10,540
After some time I finally realized that it was my SSD's fault. It got corrupted so Windows couldn't load properly, hence the weird pixelation during Windows loading. Reinstalling system solved the issue.
Psoting in case somebody gets here after google search.
 
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