Windows 7 (64) only Recognize half RAM

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Last response: October 3, 2011 6:54 PM in Memory

hasten

October 2, 2011 9:22:32 PM

I recently swapped out 2 x 2gb for 2 x 4gb of of identical (other than size) Ripjaws 1600 on my MSI P55-GD65. The bios and CPU-Z both are showing 8gb and they passed two passes of memtest when I installed them, but today I had a few programs running with Civ 5 minimized and the pc was crawling. Fired up Task Manager and it showed 87% memory utilized and only reporting 4gb of RAM.

Anyone know what's up with this?

More about : windows recognize half ram

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rolli59

Memory Master

Windows 7 Expert

October 3, 2011 1:50:04 AM

Presuming you are using 64bit OS!

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hasten

October 3, 2011 2:14:05 AM

Yeah, that's what I was implying in the title. I probably should have typed it out instead of being lazy.

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JackNaylorPE

Memory Authority

Windows 7 Expert

October 3, 2011 3:36:28 AM

Have them in the right slots ? Are both fully seated ?

Run Belarc Advisor and see what it finds.

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Wamphryi

Windows 7 Expert

October 3, 2011 3:51:33 AM

Run Msconfig by clicking start and typing in Msconfig in the search programs and files field. Click Boot then Advanced Options. Make sure Maximum Memory is not selected. If it is unselect it and reboot.

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yasir siddiqui

October 3, 2011 5:43:12 AM

if maximum memory is selected then what should we do?

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Wamphryi

Windows 7 Expert

October 3, 2011 10:09:13 AM

If maximum memory is selected then unselect it and then reboot.

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hasten

October 3, 2011 6:54:29 PM

So it's working properly now. I tried swapping slots last night, checked the max mem setting, and ran Belarc Advisor. Swap didn't help, boot mem setting was fine, and belarc was reporting 4gb total but 4gb's in slot 1 and 3 (correct slots).

So I shut her down, swapped them back to the position they were in and low and behold, I boot into the bios and it's showing the 8gb. Weird, but at least it seems to be working properly now.

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