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Windows 7: Pc only recognizes 8gb of 16 gb of ram

02 Aug 2014   #1
bigboi972

Microsoft Windows 7 Professional 64-bit
 
 
Pc only recognizes 8gb of 16 gb of ram

I have 16gb(two sticks) of ram installed on my system. My pc is only recognizing one stick of ram(8gb). I have re installed the memory several times to insure it is installed properly. I have also used CPU-Z in order to determine if the motherboard is reading both sticks of ram. I have included a photo of the results Pc only recognizes 8gb of 16 gb of ram-untitled.png




My System SpecsSystem Spec
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02 Aug 2014   #2
DocBrown

Win7 Enterprise, Win7 x86 (Ult 7600), Win7 x64 Ult 7600, TechNet RTM on AMD x64 (2.8Ghz)
 
 

Can you make some snips of the SPD tab in CPU-Z for each different memory socket ? How many memory socket are on your MB ?
My System SpecsSystem Spec
02 Aug 2014   #3
Layback Bear

Windows 7 Pro. 64/SP-1
 
 

ASRock > H81M-HDS

I think this is the motherboard.

Quote:
- Dual Channel DDR3 Memory Technology
- 2 x DDR3 DIMM Slots
- Supports DDR3 1600/1333/1066 non-ECC, un-buffered memory
- Max. capacity of system memory: 16GB*
- Supports Intel® Extreme Memory Profile (XMP) 1.3 / 1.2
Filling in your system specs completely would help us help you.

Use this tutorial by Brink:

System Info - See Your System Specs
My System SpecsSystem Spec
.

03 Aug 2014   #4
Lady Fitzgerald

Win 7 Ultimate 64 bit
 
 

The board supports 16GB of RAM.

Try to run each stick of RAM by itself to make sure one of them isn't faulty. Also, did you buy both sticks together or buy one to add to an existing one?
My System SpecsSystem Spec
03 Aug 2014   #5
bigboi972

Microsoft Windows 7 Professional 64-bit
 
 

Quote   Quote: Originally Posted by DocBrown View Post
Can you make some snips of the SPD tab in CPU-Z for each different memory socket ? How many memory socket are on your MB ?
here you go

[ATTACH]Pc only recognizes 8gb of 16 gb of ram-untitled2.png[/ATTACH]


Attached Thumbnails
Pc only recognizes 8gb of 16 gb of ram-untitled.png  
My System SpecsSystem Spec
03 Aug 2014   #6
DocBrown

Win7 Enterprise, Win7 x86 (Ult 7600), Win7 x64 Ult 7600, TechNet RTM on AMD x64 (2.8Ghz)
 
 

Quote   Quote: Originally Posted by Lady Fitzgerald View Post
The board supports 16GB of RAM.

Try to run each stick of RAM by itself to make sure one of them isn't faulty. Also, did you buy both sticks together or buy one to add to an existing one?
Yes, try one stick at a time, in slot #1 and make CPU-Z SPD tabs snips. Then
one stick at a time in slot #2, and make CPU-Z SPD tabs snips.
My System SpecsSystem Spec
03 Aug 2014   #7
bigboi972

Microsoft Windows 7 Professional 64-bit
 
 

Quote   Quote: Originally Posted by Lady Fitzgerald View Post
The board supports 16GB of RAM.

Try to run each stick of RAM by itself to make sure one of them isn't faulty. Also, did you buy both sticks together or buy one to add to an existing one?
I purchased them together and ill try to run them one at a time
My System SpecsSystem Spec
03 Aug 2014   #8
bigboi972

Microsoft Windows 7 Professional 64-bit
 
 

I put each stick in slot one and booted one at a time and they both where detected when I booted the system with one stick in at a time. I did notice that if I had either stick of ram only in slot 2 my pc attempted to come on and showed nothing oin screen in terms of the bios boot menu. My lcd fan lit up and my cpu fan started spinning for maybe 2 seconds and stop and started again two seconds later. Not sure if that is important information.
My System SpecsSystem Spec
03 Aug 2014   #9
Mellon Head

Win 7 Pro x64/Win 10 Pro x64 dual boot
 
 

Did the computer make any beeping noises when you did that?
My System SpecsSystem Spec
03 Aug 2014   #10
DocBrown

Win7 Enterprise, Win7 x86 (Ult 7600), Win7 x64 Ult 7600, TechNet RTM on AMD x64 (2.8Ghz)
 
 

Sounds like you may have a BAD slot #2 on the MB. Try inspecting it for any broken pieces, dirt or dust in slot, bent metal connections. Use a magnifying glass if you have one available.
My System SpecsSystem Spec
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