Computer wont boot after cpu upgrade

Clewis83

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Feb 25, 2017
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So....I just bought a new cpu and gpu. The gpu arrived first so I installed the new card (Sapphire Nitro RX 480 8GB). No problems during installation. Compter started normally. I downloaded the new drivers from AMD website and ran installation. During installation of drivers the screen went black several times and when finished the system rebooted.
Upon booting the usual gigabyte splash screen was garbled (Artifacts?) with some barely legible letters at the bottom left wich hinted at "gigabyte." Other then that windows booted normally. I tested it out by playing a game for 30-45 minutes and everything was apperently fine.
CPU arrived during this time (nice timing USPS). Power down, unplug power supply, disconnect motherboard power connector and cpu fan, remove old cpu (I3 2120), cleaned paste off from heatsink, placed new cpu in (I5 3570) applied new thermal compound (arctic silver) put cpu fan back on (stock fan that came with the I3 2120 my new cpu did not inclute heatsink& fan)...reconnect motherboard and fan power connectors. Cross fingers and push the power button...everything is normal, ALL fans working properly get the weird gygabyte splash screen and after 5-10 seconds shuts down for a few seconds then restars itself. It does this on off loop 2-3 times then i kill the power thinking "uh oh."

Google time:
I reset the CMOS. That got me to a screen where i could choose between "last know working settings" "default" etc. I choose default and got windows to load this time before eventually (3-4 minutes?) freezing in a specific way (the mouse cursor insta-centered itself, also the screen went black maybe twice for a few seconds during this time).
My memory is a lttle iffy from here but I tried restarting a few more times with similar results, sometimes making it into windows and eventually freezing and also sometimes doing the boot loop thing it was doing before i reset the CMOS.

I did manage to get into safe mode and it seemed the issue was no longer there but when I tried using selective startup with only microsoft services it kept booting back up with most services off as if in safe mode still. After rebooting in normal startup the problems returned.

I ran out of time to mess with it and plan on putting the old components back in in reverse order, one at a time to see if I can pinpoint if its the new cpu or gpu when I get time.

Between now and then any suggestions are appreciated.

I bought all the components and put together about 5 years ago, never had any issues- no overclocking, bios tinkering etc. pieced it together and hit the GO button (my first build)

Mobo: gigabyte z68ma-d2h-b3
Old cpu: i3 2120
New cpu: i5 3570 (non K)
old gpu: Sapphire Radeon HD 6850
new gpu: Sapphire RX 480 8GB
HEC Xpower Pro 650W PSU
8GB (2x4gb) Kingston HyperX 1600
Windows 10 64
 
Solution
It is up to you, but I think would return the CPU at this point. Depending upon where you purchased it from, you may not even have return shipping costs.

If you had it running for five minutes, you would have CPU temperature error messages (if the cooler wasn't working). So I don't see that reinstalling it will make that much difference.
I would try putting the old CPU back in first . If it boots up fine, then run through these checklists.

http://www.tomshardware.com/faq/id-1893016/post-system-boot-video-output-troubleshooting-checklist.html

http://www.tomshardware.com/faq/id-2041564/troubleshoot-boot-display-issue.html

Look for any loose screws or anything that may short to the case. Make sure that all of the power connectors are seated. If everything checks out then, try reinstalling the new CPU. Check for any bent pins or debris (And cross your fingers.). If it fails, return the CPU. You can try it again with the replacement CPU.
 
Did you ever do a bios update on the motherbaord.

While it must have been new enough to support the cpu or it would not even get you to windows, but possible they released a bug fix from it.

I would try downloading the newest drivers available for chipset and other hardware in the board as well.
 

Clewis83

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Feb 25, 2017
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I was considering updating bios but before that I thought it would be best try the old cpu first as I dont want to have to second guess wether the bios update might be the problem if trying the old cpu fails...
I decided against the DDU route (BEFORE I even started changing anything-I had read about the DDU program) to remove old drivers when a prompt appeared specifically warning me about some windows pin number that was apparently essential. Also read that when going from amd gpu to amd gpu this wasnt necessary (on the internet so it's definitely true)

http://www.gigabyte.com/Motherboard/GA-Z68MA-D2H-B3-rev-10#support-dl

I see 2 driver updates and 5 bios updates. Are these all generally safe to download except maybe the beta bios??
 
I would probably stick to the non- beta BIOS versions for now. You can always update them later. I would try the latest motherboard BIOS first, that should include any updates for a newer processor (unless there is a specific update for your particular processor in the notes). There is a small risk that the BIOS will fail, but that risk is small in modern motherboards.
 

Clewis83

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Feb 25, 2017
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Looking through the bios updates is a little encouraging. Im seing support for 3rd gen intel updates(old was 2nd new is 3rd) and 22nm support updates (old 32 new 22) so i guess i will try these before i do anything else.
Or...wpuld it be better to try old cpu first?
 


Update to F10 1.67 MB 2012/02/20 I see you upgraded to an ivybridge CPU which is probably the reason your board won't post. Bios update should fix your issue.
 

Clewis83

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Feb 25, 2017
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So...I updated the BIOS to F10 (was F9) and got the black screen of death about 5 minutes after windows loaded...
I tried removing the new gpu, using only integrated video and had the same issues although the gigabyte splash screen was back to normal.

I then the old cpu back in along with the new gpu and the problems were gone. Apparently all fingers point to the new cpu? Im going to try the new cpu again tomorrow because i had done a fairly sloppy job applying the thermal paste (and probably ussd too much) and perhaps the heat sink wasnt making good contact...if that doesnt work then I guess the cpu is "bad"...?
 
It is up to you, but I think would return the CPU at this point. Depending upon where you purchased it from, you may not even have return shipping costs.

If you had it running for five minutes, you would have CPU temperature error messages (if the cooler wasn't working). So I don't see that reinstalling it will make that much difference.
 
Solution