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Windows 7: Why is Win 7 only accepting 3 sticks of memory

12 May 2012   #11

Windows 7 Ultimate 64 bit SP1
Update on progress

Hi all,

A brief update on progress (or lack of it).


I decided to experiment with the settings in msconfig after first making a backup of my C drive. The maximum memory showing in the advanced boot tab was 12gig, which seemed more than a coincidence as this was the maximum I was able to install.

Turned out it was just a coincidence. I'm a little out of my depth here, but it seems that msconfig was monitoring the memory available rather than providing an opportunity to increase some arbritary limit.


I increased the DRAM voltage in small increments but was still unable to get past the Windows boot GUI with 4 sticks (16Gig) of memory installed.


I adjusted the memory speed down to the next lowest setting with and without a reduction in voltage, but still no luck.


I spent several hours searching the 'net, for anything relavent but found nothing.
I also posted an email question to Gigabyte which has been acknowledged, but I don't hold out much hope of a useful reply.


I think it is most likely that there is a compatibility issue with the memory. Sometime in the future I may try a matched set of four memory sticks. For the moment I have carefully repackaged the two upgrade sticks and returned them for a refund.

Now the kettle's on and I intend to sit down with a nice mug of coffee ... who needs an upgrade to 16Gig anyway ??

Thanks to you all for your tips and advice.

My System SpecsSystem Spec
12 May 2012   #12

Multi-Boot W7_Pro_x64 W8.1_Pro_x64 W10_Pro_x64 +Linux_VMs +Chromium_VM

Sorry to hear you couldn't find a solution.
At least you could still return it for a refund.

Re-reading this thread i noticed it was never mentioned to try running memtest86 with all 4 sticks.
Based on your testing, I don't know if this would help, but it's something that could be tested.

Something to keep in mind for the future...

Anyway, enjoy the hot coffee!
My System SpecsSystem Spec

 Why is Win 7 only accepting 3 sticks of memory

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