Computer won't boot sometimes

Omar_33

Commendable
Jun 5, 2016
5
0
1,510
Hi,

I have recently built a pc and didn't have too many problems until I upgraded my GPU from an AMD r7 250x to an nvidia geforce gtx 980.

Now sometimes when I turn on my pc it will get to the gigabyte screen (I have a gigabyte mobo) and won't continue any further. Other times it will get to to the windows bootup screen and also freeze. And sometimes it is just a black screen with an underscore flashing in the top left. Furthermore today it just switched off after getting to the gigabyte screen.

This doesnt happen all the time as I am typing this message on my pc but it does happen enough that it is getting annoying and worrying because I sometimes have to restart multiple times.

Any help is appreciated, also my specs are as follows

Motherboard: GA-X99P-SLI
GPU: Nvidia GeForce GTX 980
CPU: Intel core i7 3.3ghz 6 core
HDD:Solid State 120GB (Soon to have a 500 GB HD aswell)
RAM: 2x 16gb DDR4 sticks
PSU: Corsair 750Watt
 
Solution


Yes, 750W is more than enough. 650W would even be fine unless you plan on adding a second GPU. But for a high end system like yours I wouldn't run it on a Corsair CX PSU, they're just not made well (cheaper internal parts). They can exhibit poor power regulation under load which can cause system instability, and lack some of the better circuit protections to protect your expensive hardware.

Have a look at the PSU Tier List here on Tom's. You'll want something from Tier 1 or 2:
http://www.tomshardware.com/forum/id-2547993/psu-tier-list.html

jonnyGURU...

rcxtra

Reputable
Sep 15, 2015
410
0
5,160
When you upgraded your GPU, did you uninstall the AMD drivers before powering down and swapping the graphics cards? If not, you might have some remnance of the old GPU drivers causing conflicts. You can use the DDU cleaner here
http://www.guru3d.com/files-details/display-driver-uninstaller-download.html
to clean out all GPU drivers and then reinstall your GTX 980 drivers to see if it clears up your problem.

Also, is that a quality Corsair PSU (i.e. NOT CX750)? The Corsair CX series PSU's are crap and could cause a problem on a high end system like yours. Especially after upgrading to a more power hungry GTX 980.

OR, your new 980 could be flaky. Does the problem only happen from a cold boot when the system has been powered off for awhile? Can you reproduce the problem after shutting down and then restarting the computer right away? If not, and you have ruled out the above, then the new 980 could have a problem when it's cold and stabalizes after it's warmed up. But honestly, I would expect a cold boot problem from a PSU before a GPU.
 

Omar_33

Commendable
Jun 5, 2016
5
0
1,510


Thanks a million for your reply, I will try that programme now and also check the PSU one more time as I have forgotten which one it is and I will get back to you with the result
 

Omar_33

Commendable
Jun 5, 2016
5
0
1,510


Sorry for late reply as I have just finished work. So I deleted and reinstalled drivers and it seems to have fixed the issue (mind you I only booted twice). Even though the problem seems to be resolved it turns out my PSU is in fact a CX750 so even though it isnt causing the problem would you recommend I upgrade it? What would you recommend? And 750 watts should be enough right?
 

rcxtra

Reputable
Sep 15, 2015
410
0
5,160


Yes, 750W is more than enough. 650W would even be fine unless you plan on adding a second GPU. But for a high end system like yours I wouldn't run it on a Corsair CX PSU, they're just not made well (cheaper internal parts). They can exhibit poor power regulation under load which can cause system instability, and lack some of the better circuit protections to protect your expensive hardware.

Have a look at the PSU Tier List here on Tom's. You'll want something from Tier 1 or 2:
http://www.tomshardware.com/forum/id-2547993/psu-tier-list.html

jonnyGURU is also a good place for PSU recommendations and it's a little more up to date:
http://www.jonnyguru.com/

 
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