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BIOS not detecting full ram

post #1 of 8
Thread Starter 
Hi

It was all fine until I replaced the heat sink, then I have noticed that the bios is only detecting half of the 16gb of ram. I have tried few things mentioned here including "reseating" the cpu but no luck.

Windows detects 12gb ram but not all usable. I have run few programs like cpuz and it detects all 16gb so I am not sure if it is a hardware or software (bios) issue.

I tried updating the bios and resetting the bios by removing the battery.

Screenshot http://imgur.com/pwBeCiR.


Thanks
Hassan
post #2 of 8
What I would try is, remove all memory sticks and gently rub the contacts of them (perhaps using alcohol), then installing them back into their slots.
post #3 of 8
Thread Starter 
Thanks deepor for replying

I've have just tried that, using isopropyl alcohol and it is still the same.
post #4 of 8
Did you try each stick of ram by itself in each slot?
post #5 of 8
are you able to change them to dual channel?

What type of motherboard do you have?
post #6 of 8
Thread Starter 
Thanks infinite0180 for the idea.

I have tried one stick at a time and it only works in slot 2(white) and slot 4 (blue) so I put the sticks in 2 and 4 slot and the bios detected all the ram.

@cloud forever, the mother board is GIGABYTE GA-970A-DS3 I checked the manual but couldn't find anything about dual channel and also checked the bios and couldn't find anything about dual channel and to be honest I am not sure what to look for.

Thank you all for your help and infinite0180 again for your suggestion.
post #7 of 8
No problem, slots 2 and 4 are most likely running it in dual channel mode which is what you want... If you download cpu-z and check the memory tab it will say what channel your memory is running at... Usually when ram is in slot 1 and 2 or 3 and 4 its single channel. And usually slots 1 and 3 or 2 and 4 are dual channel... Good luck!


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post #8 of 8
Quote:
Originally Posted by hassan123a View Post

Thanks infinite0180 for the idea.

I have tried one stick at a time and it only works in slot 2(white) and slot 4 (blue) so I put the sticks in 2 and 4 slot and the bios detected all the ram.

@cloud forever, the mother board is GIGABYTE GA-970A-DS3 I checked the manual but couldn't find anything about dual channel and also checked the bios and couldn't find anything about dual channel and to be honest I am not sure what to look for.

Thank you all for your help and infinite0180 again for your suggestion.

Manuals are a wonderful thing. Check page 11. Your memory goes Slot 4-2-3-1 from left to right. You are suppose to have it in 1-2 for 2 sticks Dual channel.
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