Problem with GA-965P-S3 RAM recognition

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mariusandrei

Honorable
Jul 30, 2013
2
0
10,510
Hello,
My operating system is Win 7 Ultimate 32 bits with last F14 bios update for motherboard GA-965P-S3
I have 4 inserted ram in slots:
Two KHX6400D2LL/512MB and two KHX6400D2LL/2GigaB.

My problem is that the system displays only 3 giga out of 5 available.

Everest say's:

DIMM1: Kingston (512 MB DDR2-667 DDR2 SDRAM)
DIMM2: Kingston (1 GB DDR2-667 DDR2 SDRAM) (it should be 2GB)
DIMM3: Kingston (1 GB DDR2-667 DDR2 SDRAM) (it should be 2GB)
DIMM4: Kingston (512 MB DDR2-667 DDR2 SDRAM)

These are the ram cards that I have in the motherboard (see picture below).
Does anyone know why the system does not recognize all 5 giga of RAM?

nbowv6.jpg
 
Solution
das_stig
1. Memory must be in matched coloured slots, i.e 512MB sticks must be both yellow slots or 1GB sticks in both red slots, not mixed
2. Best not to mix memory of different sizes or speeds.
3. 32-bit Windows Ultimate can only see 4GB of ram and at best may only have 3.5GB useable due to system/video memory reservations, so to fully use 5GB of ram, you need 64-bit Windows Ultimate.
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das_stig

das_stig

Glorious
Jul 24, 2009
8,281
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1. Memory must be in matched coloured slots, i.e 512MB sticks must be both yellow slots or 1GB sticks in both red slots, not mixed
2. Best not to mix memory of different sizes or speeds.
3. 32-bit Windows Ultimate can only see 4GB of ram and at best may only have 3.5GB useable due to system/video memory reservations, so to fully use 5GB of ram, you need 64-bit Windows Ultimate.
 
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Solution
M

mariusandrei

Honorable
Jul 30, 2013
2
0
10,510
Thank you das_stig for answering!

1. I matched yellow 2 slots with 2 RAM cards 512 MB each (KHX6400D2LL/512MB) and 2 red slots with 2 RAM cards 2 GIGA each ( KHX6400D2LL/2GigaB) - There is still 3 giga RAM showen of 5 giga as it should be.
2. I try leaving the two card that has 2 giga each and after reboot it shows only 1,5 giga of RAM.
3. Related to this subject, there is an alternative to this, that would let you use all of available RAM. I made the steps in the tutorial but i guess that something was wrong.

Question: Is there any posibility in bios or anywhere else to see the actual 5 giga RAM that i have installed?

Thank you!
 
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das_stig

das_stig

Glorious
Jul 24, 2009
8,281
30
46,040
Put a 512MB stick in each slot and see if they all detect it correctly and BIOS shows 512MB of memory.
The do the same again, with the other 512MB.
Repeat for the 2GB sticks.
Repeat again, but using 2x512MB, then the 2x2GB.

If all detected in single and dual mode, then you either have a ram compatibility issue or bios/chipset problem.

If you want to check for faulty ram, memtest+ will do that for you.
 
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