Weird Start-Up Glitch

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Sparroo

Sparroo

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Oct 21, 2013
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So I built a new PC with these specs:

PSU: Corsair TX750W
GPU: Gigabyte HD7970
CPU: Intel i5-4570
Mobo: Asus B85M-G

When booting the computer sometimes the screen will glitch out and look really weird. As soon as windows boots it will blue screen and the PC will restart itself. After restarting everything is perfectly fine. I have no clue as to why this happens randomly...
 
Solution
COLGeek
I am out of ideas. There is a setting you can change in your BIOS to force the PCIe x16 slot to operate in Gen2 mode (makes it work like a PCIe version 2.x vice 3.0 slot). This is used in some mobos to increase stability.

The info is on page 2-28 of your manual. This tweak shouldn't matter, but might be worth checking out.

Regarding the @BIOS program, make sure to run as administrator. BTW, according to the dates, the F3 is the newest of the firmware releases for your HD7970. Does it have F72 on it now?
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COLGeek

COLGeek

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These are often driver or BIOS issues, so that is why the easy questions were asked first.

When the system operates, how are your idle and loaded temperatures?

Also, I suggest testing your memory, to rule it out. A diagnostic tool like memtest (see below) should be used.

http://www.memtest.org/ (download, burn ISO to CD, boot from CD, run tests)
 
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Sparroo

Sparroo

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idle temp of GPU is 34C and CPU is 33C.

I tested the mem in another pc and it works fine

I'm almost certain its the GPU because sometimes the PC will seem to boot up normally however the GPU driver will not load. To fix this I have to restart the computer 1-2 times. All of these issues are only on start-up. once the computer boots up normally there is 0 further problems
 
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COLGeek

COLGeek

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Double check that the GPU is properly inserted into (and locked in) the x16 slot. Also double check the PCIe power connectors to verify that they are firmly connected as well.

Did you run memtest or just move the memory to another PC to see if it would work okay?
 
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Sparroo

Sparroo

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So I ran memtest and it returned no errors.

I checked everything inside the case. everything is connected properly and locked in.

CPU temp under full load is : 58C

GPU temp under full load is : 64C

I also checked the BIOS of the GPU and its the latest version
 
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COLGeek

COLGeek

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That is a factory overclocked GPU. I suggest doing this. Go into Catalyst and ensure Overdrive is enabled (in the Performance section). Then downclock the GPU settings to the stock speed of 925 Mhz (probably at 1000 now). Set the memory speed to 1375. These are stock HD7970 speeds. Save the settings and restart your rig.

If the system is now stable (you may need to run for a couple days), I suggest you RMA the HD7970 becuase it isn't performing as it was intended to. I have seen other factory OCed GPUs do this.
 
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Sparroo

Sparroo

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I'll try this and see if the problem persist or not...
 
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Sparroo

Sparroo

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Doesn't seem to have made a difference. Still getting blue screens with the same message as usual.

edit: seems the adjustments have to be made from OC Guru? The Clocks reset themselves to 1000/1375.
 
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Sparroo

Sparroo

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I tried this earlier but for some reason the programs they provided don't work. In the @BIOS program I just get an error when starting the program and in the other the "bios setting" button is locked for some reason. Also I'm not sure if I can go from F72 to F3. I heard somewhere that you can't but not sure about this.
 
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COLGeek

COLGeek

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Apr 6, 2009
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I am out of ideas. There is a setting you can change in your BIOS to force the PCIe x16 slot to operate in Gen2 mode (makes it work like a PCIe version 2.x vice 3.0 slot). This is used in some mobos to increase stability.

The info is on page 2-28 of your manual. This tweak shouldn't matter, but might be worth checking out.

Regarding the @BIOS program, make sure to run as administrator. BTW, according to the dates, the F3 is the newest of the firmware releases for your HD7970. Does it have F72 on it now?
 
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Solution
Sparroo

Sparroo

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Oct 21, 2013
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I tried the gen2 setting. same problem. the VGA@BIOS program magically started working and I tried to flash the bios with that but it said BIOS version does not match. I read a note on the gigabyte website saying BIOSs could only be flashed to a bios in the same series ex. F1->F3 F72->F74 (Doesn't exist, just an example). So yeah guess I'm stuck with this BIOS.

Just as a side note there is only 3 parts in this PC which are actually new (haven't been used before). They are the Mobo, The CPU and the GPU. So technically speaking the problem could be coming from any of the three. I do suspect its the GPU though due to the nature of the problems and the fact that the bluescreens lists an ATI file as the culprit. I have tried re-installing the ATI driver multiple times but it makes no difference.

The GPU is still under warranty so I think I'll take it back and exchange it for a GTX670(That's the Nvidia equivalent right?) or a R9 280X.

Thank-you for your help COLGeek.
 
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