New GPU causes computer to constantly restart when "loading operating system"

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Solution
rcald2000
@TBMNKY,

There are usually three causes: heat, power and software. My vote is that heat is causing this issue, although it would be surprising since you're only running a GTX 960. I recommend that you try the following steps in the order that I've laid out.

*** heat ***
With your new GPU installed, open the side of your case, and lean the entire case (computer) on it's side, so that the the motherboard and case opening is pointed up toward the ceiling. This should help excess heat escape from your system. I'd like to know if the rebooting stops. One possibility is that excess heat from the GPU is causing the southbridge to overheat and reboot your system. The purpose is for you to have the computer on, and for you to...
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maxalge

maxalge

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May 31, 2012
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did you plug in the 6-pin the card needs from the power supply?

might need to clear the cmos ( look at your motherboard guide )

then go into the bios and load optimized defaults



could also need to update the motherboard bios
 
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T

TBMNKY

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Dec 13, 2015
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I have connected the 6 pin PCIe. Whenever I switch back to my old gpu, everything displays fine (with no drivers the resolution is small but it works).
 
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rcald2000

rcald2000

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Nov 3, 2009
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@TBMNKY,

There are usually three causes: heat, power and software. My vote is that heat is causing this issue, although it would be surprising since you're only running a GTX 960. I recommend that you try the following steps in the order that I've laid out.

*** heat ***
With your new GPU installed, open the side of your case, and lean the entire case (computer) on it's side, so that the the motherboard and case opening is pointed up toward the ceiling. This should help excess heat escape from your system. I'd like to know if the rebooting stops. One possibility is that excess heat from the GPU is causing the southbridge to overheat and reboot your system. The purpose is for you to have the computer on, and for you to use it normally. If it stops rebooting then excess heat is probably the cause and I would then ask you to take a photo of the components inside the computer while the case was open, to get an idea of the air flow. Then we can proceed with recommendations to solve the excess heat issue.

*** power ***
What is the precise power supply that you're currently running. What is it's mfg and it's model number. And while you're at it, please list your entire system specs in addition to the power supply's, and also include your "old" power supplies mfg/model.

*** software ***
I don't believe I've ever seen bad drivers simply reboot a system, without displaying a mini dump or blue screen. Did you see anything like that before the reboots? Were I in your situation, I would download and run DDU (display drivers uninstallers) from the Bleeping Computer website. Google query: bleeping computer ddu
Then navigate to nvidia's website and download and install the drivers only if possible. I'm not sure if Nvidia still allows downloading drivers without the GEforceExperience but if they do then please do so. If not then install the entire GEforceExperience package, along with the latest drivers.
If problem persists, then I would download and run BlueScreenView from Nirsoft's website. If there are any recently mini dumps then it'll pull the logs and you can post them here for us to diagnose them. After that, I would recommend scanning for infection with ADWcleaner and then Combofix. Both utilities are best downloads from Bleeping Computer and you should save any and all work before running them because they both will reboot your computer while diagnosing it for infection.
 
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Solution
D

danxj3

Reputable
Jan 10, 2016
1
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4,510
@TBMNKY
I am having the exact same problem.
When I have my Zotac GTX 560 plugged in, the comp will start, BIOS > POST > Loading Operating System ... then boot loop again.

Gigabyte ga-z68x-ud3h-b3
Seagate 250gb 7200pm HDD (brand new)
LG UH12NS30 Bluray
OCZ 550W PSU
intel g2030

This setup ran without issue until i swapped out CPU's - it had a i5, but I replaced it with the g2030. so i switched back to i5, still stuck in boot loop.
I am now reinstalling a different version of Windows (from 7 to 8) to test.
 
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GreenBoyMK

Commendable
Apr 13, 2016
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From Green Boy

Please specify more information about your hardeare system
1PSU manifecturerr and power of PSU
what processot
what Motherboard you are using
what memory and capacity before I can give you any information
and of course there is always a solution for the problem
The card itself is not an issu try it on a new system if it works it is not the card
Somethimes is the motherboard bios Update it
second step try after updating bios if there is newer version to clean motherboard bios by removing the batterry for couple of minutes and restart If that doesent fix the problem try another PSU And also write on the post with more info
GreenBoy
 
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