ga-x58a-ud3r shows 18 gig's of ram but only using 12 gigs

LtPin · May 18, 2014

how or what changes do I need to make to get it running on all 6 ram sticks

unknownofprob · May 18, 2014

you most likely have reserved memory for graphics ect..this is normal.

Are you saying there is 18GB total, and only 12GB available, then this is the case.

LtPin · May 18, 2014

This was not an issue before, I had all 6 stick in and it worked fine. I pulled 3 of them to use in another computer for a bout 2 months and now when I put them back in its not working as it should. this is want i'm getting http://s137.photobucket.com/user/exe16/media/BLAR_zpsa1dc8173.png.html

unknownofprob · May 18, 2014

you tried putting the channels around the other way, swapping left three with right three?

LtPin · May 18, 2014

unknownofprob :

yes, same results

unknownofprob · May 18, 2014

Have you run a PC test to see if you actually do have 18GB installed, As far as I can tell, it does have 18GB usable, rest taken by graphics and cache.

LtPin · May 18, 2014

unknownofprob :

I am running an EVGA GTX 670 Graphics Card if there is some place I have ram allocated to video I have no idea where that would be set at

LtPin · May 18, 2014

http://s137.photobucket.com/user/exe16/media/BLAR_zpsa1dc8173.png.html lower left photo shows the bios with all 6 sticks of ram and there amounts it then shows slot 5 and 6 with a - as if not enabled

unknownofprob · May 18, 2014

Oh, I see, BIOS knows that there is ram in the slot, but appears to have no memory.

Have you mixed 2GB sticks with 4GB? Some OS's hate this.

LtPin · May 18, 2014

unknownofprob :

im running 2 triple channel kits corsair dominator 3x4Gb and 3x2GB they had been working and showing fine I then pulled the 3x2gb to use in another computer for a month and now there now working as they did before

photonboy · May 18, 2014

Sounds like the MOTHERBOARD slots are damaged.

unknownofprob · May 18, 2014

yeah, some motherboards do this when taken out sometimes. Did you update your OS recently when the ram sticks were out?

photonboy · May 18, 2014

unknownofprob :

Not relevant if he can't see all sticks in the BIOS.

unknownofprob · May 18, 2014

he used to.

LtPin · May 18, 2014

photonboy :

so I decided to pull the ram from slots 3 and 4 and then it still shows 12 gigs with 5 and 6 being used so slots not the issue

photonboy · May 18, 2014

*Try using FOUR sticks in:
a) Dual, and
b) Triple

See your motherboard Manual (pg. 16).

If BOTH of these work, but all six sticks do NOT then the problem is Slot#5. If the Dual-Channel with four sticks passes the left four slots work. If the Triple-Channel with four sticks fails after the Dual-Channel passes the Slot#6 is defective (Slot#5 may be as well).

So again, if ALL the positions pass except with SIX sticks it's Slot#5 that is defective.

Make sense?

Regardless, it sounds like you may contact Gigabyte.

LtPin · May 18, 2014

after the test with removing ram from slots 3 and 4 I reinstalled the ram in to them and now it is showing 18 gigs and working as it should be

unknownofprob · May 18, 2014

glad to know it works, if you have any other questions just ask and we'll gladly help.

photonboy · May 18, 2014

Possibly not fully seated?

Run a full test with MEMTEST just to be sure with the optimal profile setup in the BIOS.

LtPin · May 18, 2014

Thanks for the help

not sure why it dident work the first 6 times I reseeted the ram lol

unknownofprob · May 18, 2014

6 times!, Did they fully click in when you did it the other times?

ga-x58a-ud3r shows 18 gig's of ram but only using 12 gigs

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