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Tech Helproom


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RAM issues


twisted1504

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i have just built a new PC and installed 8GB of DDR3 ram on a 64bit OS windows 7 HP , however it says 8GB installed 3.97GB useable please help as iv try ed everything and its really stressing me out :( my friends have told me the ram isn't compatible with my board its my CPU and also been told its because of my GFX card

SPECS CPU- AMD FX 4100 MOTHERBOARD - MSI 970A-G46 RAM - Corsair Vengeance Blue 8GB (2x4GB) DDR3 PC3-12800C9 1600MHz GFX - palit 9600gt 1GB PSU - Akasa 750w

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Zak

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Plse see last entry of this thread; may solve your problem as it appears that the detection of the full RAM depends on the slots you are using on the MB

[SOLVED] RAM 8GB only detect 3.97GB in 64bit OS ???

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twisted1504

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iv try ed slot 1 and 3 then iv try ed 2 and 4 same thing is happening

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Zak

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I take it that you have checked RAM with memtest to make sure the sticks are OK

Also here is some more things to try

Post by jaquith MEMORY MASTER 6 June 2012 20:54:09

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twisted1504

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from what iv read it sounds like a mobo issue as i have done everything else they have tryed

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Zak

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Sorry to hear that, and I have run out of ideas; best to RMA the mobo. Good luck and please let us know the final outcome.

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Chronos the 2nd

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Looking at your mobo manual your RAM should be installed in slots 2 and 4 and as far as I can make out your RAM is compatible with the motherboard.

Does the BIOS detect the full 8GB of RAM? If not then it is either a faulty module or faulty mobo.

A simple test boot with (1) stick then swap out the other, and if one fails then RMA the RAM for a new SET not just (1) stick.

Use Memtest86 and see if you are getting errors.

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mrwoowoo

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Does your OS show as 64bit in control panel/system? . If it shows as a 32 bit OS that could explain why it can only use 4GB. Silly question, but are you counting the slots from the correct direction. It has happened before. Slot 1 should be next to the CPU.

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twisted1504

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yes 64bit OS shows and tested each stick both working fine so i replaced the mobo and all is good now never using MSI again gone back to ASUS thanks for your help

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