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Questions about GIGABYTE products => Motherboards with AMD processors => Topic started by: MerrickPlainview on June 28, 2016, 07:13:54 pm

Title: My GA-F2A88XM-D3H only using 4GBs of F3-12800CL9D-8GBXL ram in Single Channel!
Post by: MerrickPlainview on June 28, 2016, 07:13:54 pm
Back in October, I purchased all new components including the G.SKILL Ripjaws X Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model F3-12800CL9D-8GBXL. After a few months, I noticed that my RAM was being recognized by Windows 7 (64-bit) and the Gigabyte BIOS as 4GB. In my bios it shows both sticks, see picture below:
(http://i.imgur.com/lnk7Zxy.jpg)

I tried several methods to fixing the problem:

Here's some PC info:

Any ideas? Thanks in advance.
Title: Re: My GA-F2A88XM-D3H only using 4GBs of F3-12800CL9D-8GBXL ram in Single Channel!
Post by: regit on June 28, 2016, 10:49:28 pm
Quote from: MerrickPlainview on June 28, 2016, 07:13:54 pm
Back in October, I purchased all new components including the G.SKILL Ripjaws X Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model F3-12800CL9D-8GBXL. After a few months, I noticed that my RAM was being recognized by Windows 7 (64-bit) and the Gigabyte BIOS as 4GB. In my bios it shows both sticks, see picture below:
(http://i.imgur.com/lnk7Zxy.jpg)

I tried several methods to fixing the problem:
  • Reseating the ram
  • Moving the Ram from DDR3_3 & DDR3_4 to DDR3_1 & DDR3_2 (as the mobo manual suggests)
  • Clearing CMOS
  • Checking status in CPU-Z (Which recognizes both sticks but indicates Single Channel)

Here's some PC info:
  • MOBO: Gigabyte GA-F2A88X-D3H (3.0)
  • BIOS Ver: F6
  • GPU: Nvidia Gefore GTX 560 ti
  • CPU: AMD A10 7850k
  • Operating System:   Win 8 64-bit
  • Power Supply: 500w

Any ideas? Thanks in advance.

First :Update bios to latest F10a
Title: Re: My GA-F2A88XM-D3H only using 4GBs of F3-12800CL9D-8GBXL ram in Single Channel!
Post by: MerrickPlainview on June 29, 2016, 12:46:32 am
Quote from: AgentFXA on June 29, 2016, 12:27:15 am
You have 3 ram sticks installed? (according to bios screen)
there is 1 in slot4 and 2 in slot2?

looks fishy, no?

I only see 2.  ???
Title: Re: My GA-F2A88XM-D3H only using 4GBs of F3-12800CL9D-8GBXL ram in Single Channel!
Post by: AgentFXA on June 29, 2016, 12:53:51 am
Yep, I misread the screen!
Title: Re: My GA-F2A88XM-D3H only using 4GBs of F3-12800CL9D-8GBXL ram in Single Channel!
Post by: MerrickPlainview on June 30, 2016, 02:40:29 am
Alright, I tried each stick individually on each slot. Ram sticks are healthy and work by themselves. I checked bios to see what ddr3 slot correlated with what DIMM #.


So I took the advice from another forum on Tom's Hardware and plugged them into the same channel, into DDR3_4 & DDR3_2 and viola, 8GB!
Title: Re: My GA-F2A88XM-D3H only using 4GBs of F3-12800CL9D-8GBXL ram in Single Channel!
Post by: ElectroStingz on June 30, 2016, 01:11:50 pm
Hello,

So you are saying Channel A works, when you tried just 1 stick did you test just channel B?
Place only 1 stick in either one.
DDR3_1 = DIMM 4 (Channel B)
DDR3_3 = DIMM 3 (Channel B)

Then try both in above slots.
Will not work?

Title: Re: My GA-F2A88XM-D3H only using 4GBs of F3-12800CL9D-8GBXL ram in Single Channel!
Post by: MerrickPlainview on June 30, 2016, 06:26:44 pm
Quote from: ElectroStingz on June 30, 2016, 01:11:50 pm
Hello,

So you are saying Channel A works, when you tried just 1 stick did you test just channel B?
Place only 1 stick in either one.
DDR3_1 = DIMM 4 (Channel B)
DDR3_3 = DIMM 3 (Channel B)

Then try both in above slots.
Will not work?



Yes, Channel A works with both sticks. Windows and BIOS now displays 8GBs. So the problem is fixed. I tried Channel B and it does work with one stick in DDR3_3.