Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: Locking up computer - CPU Vcore experiencing massive fluctuation(33%)

20 Sep 2011   #21

Windows 7 Ultimate x64

BAH! The computer locked up with a new video card. Same as usual.

I had no lockups for 46 hours using Intel HD graphics. This lockup occured about 7 hours after installing 6770.

It looks like we are dealing with a:
1) Bad PCI connectors on mobo
2) PSU issue

This is what I will be advising my retailer to test tomorrow, as I am cutting my losses and bringing the computer in. It's free repairs but honestly, I preferred to not have strangers meddling with my parts (hence this thread). Oh well.

Any other suggestions on what the problem can be now that it's locked up with 2 PCIe cards, but is stable when using Intel HD graphics?

My System SpecsSystem Spec
20 Sep 2011   #22

Windows 10 Pro/ Windows 10 Pro Insider

Mark, I don't know enough about video cards to give you an answer. I don't have that problem. But, using logic, the drivers for any card are located in the OS. So, until the OS loads, your video card is on it's own. That seems logical to me. But, I'm sure some more knowledgeable about video cards will answer soon.
My System SpecsSystem Spec
20 Sep 2011   #23

Windows 10 Pro. EFI boot partition, full EFI boot

I suspect this is a memory (or CPU) problem. Download memory diagnostics and run them at boot time for an hour or so.

Or alternatively, run Prime95 with the settings as I previously suggested.

As you first posted:

- Anything in a USB slot can still receive power. However anything new plugged into USB cannot.
- The lockups occur randomly; sometimes when nothing is running at all but the OS.
- All functionality is gone.

Doesn't sound like a video card issue IMO.
My System SpecsSystem Spec

06 Jan 2013   #24

Windows 7 Ultimate x64

Well great. After over 1 year of no problems, the same issue has returned after doing a repair install of Windows 7.

I've re-installed all my drivers but still getting the same random freezes as before.

Any suggestions?
My System SpecsSystem Spec
06 Jan 2013   #25

WIN7 Ultimate 64bit

One stick of memory could be/is bad

- causes the bios to flip the voltage up to 1.6x to try to get it past post.

The borked memory then causes loads of other intermittent problems further down the line.

Try leaving one stick in for a few days - then swap.

Can't believe you were still overclocking parts whilst fault finding!
My System SpecsSystem Spec

 Locking up computer - CPU Vcore experiencing massive fluctuation(33%)

Thread Tools

Similar help and support threads
Thread Forum
BSOD after starting up computer, first time experiencing
EDIT: Solved for now Hey all, Just booted up, and about 20 seconds after getting into Windows, I got a BSOD. I wasn't looking at the screen when it happened but I briefly saw some type of counter, increasing in number, up to 100, at which point the computer restarted. Any clues? Thanks for...
BSOD Help and Support
Computer Locking Up/Experiencing BSOD While Playing Games and Browsing
Unfortunately, I can't provide a whole lot of information on this problem, as there doesn't seem to be any single, consistent action that causes it. I have now experienced two BSODs, one during Metal Gear Solid 5, the other I believe was merely surfing the internet using Chrome. However, possibly...
BSOD Help and Support
locking your computer
If i leave my computer, for even a short time,when i come to use it i get a message "locking your computer".I have removed the password protection but i want to stop this happening as i am the only user and it's a pain having to wait for my screen to reappear. System is Windows 7 Home Premium 64...
General Discussion
Locking down a base computer
I'm currently trying to lock down my base computer from my friends and was wondering what are the best ways ways on doing it?? When I mean locking it down I mean as far as accessing the data on the computer. I have quite a bit of computer knowledge but I'm like everyone else, I don't know it all....
General Discussion
Computer locking up
So almost eevry time I come back to my computer after a longer period of being away it will completely freeze on me. I have not added any hardware or installed software since this began and have been using this computer for a year and a half. Example would be Im able to use now, and it will run...
BSOD Help and Support

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 15:08.
Twitter Facebook Google+ Seven Forums iOS App Seven Forums Android App