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Questions about GIGABYTE products => Motherboards with Intel processors => Topic started by: GrimLock380 on January 20, 2010, 01:08:45 pm

Title: 6gb of ram installed, 4gb of ram usable
Post by: GrimLock380 on January 20, 2010, 01:08:45 pm: Hi,

I recently built a computer, with 6gb of ddr3 corsair dominator ram, however (under system information) it shows that only 4gb of the 6gb of ram is usable.

After going through other forums, I eventually came to the conclusion that i need to enable memory remapping. I couldn't find anything to do with that in the BIOS. Does anyone know what it's under? Or if this isnt the solution, then what is?

Motherboard - P55A-UD4

OS: Windows 7 Pro. 64bit
Title: Re: 6gb of ram installed, 4gb of ram useable
Post by: oggmonster on January 20, 2010, 09:37:25 pm: I've heard of people having to enable XMP somewhere in the memory settings, don't know exactly where as I do not own an i5/i7 board. Also make sure you're using latest BIOS
Title: Re: 6gb of ram installed, 4gb of ram useable
Post by: Pottypete on January 21, 2010, 09:04:16 pm: Hi,
Have you downloaded the manual, it should show bios settings in there?
Cheers
Title: Re: 6gb of ram installed, 4gb of ram usable
Post by: GrimLock380 on January 22, 2010, 01:34:50 am: It's ok, i've fixed it :D thanks for the help
Title: Re: 6gb of ram installed, 4gb of ram useable
Post by: Pottypete on January 23, 2010, 10:58:29 am: Hi,
Happy you sorted it,
Cheers
Title: Re: 6gb of ram installed, 4gb of ram useable
Post by: oggmonster on January 28, 2010, 09:51:20 am: Quote from: GrimLock380 on January 22, 2010, 01:34:50 am
It's ok, i've fixed it :D thanks for the help

What was the fix out of interest? :)
Title: Re: 6gb of ram installed, 4gb of ram usable
Post by: palavering on February 01, 2010, 11:25:40 pm: I have the same problem. I'm glad you fixed yours; can you tell us what you did to fix it?
Title: Re: 6gb of ram installed, 4gb of ram usable
Post by: Beekeeper on February 03, 2010, 02:29:31 pm: it seems like kind of bug in this OS, just found this solution on unofficial win 7 forum:

1) run
2) type "msconfig"
3) go under the "boot" tab
4) click "advanced options" button
5) UNCHECK "Maximum memory"
6) Reboot

try and let us know
Title: Re: 6gb of ram installed, 4gb of ram usable
Post by: palavering on February 03, 2010, 04:39:55 pm: It wasn't checked to begin with. But thanks. Here's what I've discovered: DDR3-2 and DDR3-1 aren't reading the RAM I place in them. These are the first two slots from the left facing the board. However, DDR3-4 and DDR3-3 are working fine. I am using 1 dual-channel stick and 1 ddr3 stick in the first two slots and the same in the last two slots. I have tested both the dual channel and the sd Ram and all work, but not in the first two slots that I mentioned. Do I have a defective board, or can these first two slots be turned on? And, if YES, how do I do it?
Thank you for your assistance and your time. I appreciate it very much.
Bill
Title: Re: 6gb of ram installed, 4gb of ram usable
Post by: runn3R on February 03, 2010, 04:54:09 pm: Hi palavering

We will discuss it here:
http://forum.giga-byte.co.uk/index.php/topic,1258.0.html

as you did too many duplicated posts about the same problem
Title: Re: 6gb of ram installed, 4gb of ram usable
Post by: hyrola on March 02, 2010, 03:03:08 am: Dont you just love people who come on just to post there issue, find a solution to a problem that many others are having and don't come back to offer the advise in how they resolved it!?

I've only just registered here after buying a x58a ud7 board, but if i find a resolve to a problem i will come back on and update!

Glad you got your issue sorted Grimlock... if you come back on here, please share it with the rest of us.
Title: Re: 6gb of ram installed, 4gb of ram usable
Post by: runn3R on March 02, 2010, 06:20:29 pm: Hi hyrola

Fully agree!

I've just sent PM to Grimlock380 about it. Let's hope he'll reply soon.