Just installed 8gb ddr3 and only 4.9 is usable..

seekario · Apr 10, 2014

Well I just installed this motherboard GA-970A-DS3P
http://www.amazon.com/gp/product/B00DJ3DWN2/ref=oh_details_o00_s01_i02?ie=UTF8&psc=1

Also installed this memory ram
Dual channel corsair 8gb ddr3 vengeance
http://www.newegg.com/Product/Product.aspx?Item=N82E16820145345

So everytime I check the system info it says I got 8gb installed but only 4.9 GB is usable..
I tried resitting the ram to the another 2 slot and didnt worked..
I dont really know what to do guys.
Any help will be greatly appreciated.

PD: I looked all over google and I only see when 3.9gb is detected and normally is because they dont have a x64 bit windows but I do.
I have windows 7 ultimate.

Thanks you for your time!

emdea22 · Apr 10, 2014

Well since you don't have an IGP and you do have Windows 7 Ultimate x64 something must be wrong with the ram OR some incompatibility with the ram and mobo. If anybody has some better ideas i can't wait to hear em

Lucas Iemini · Apr 10, 2014

My best guess is that one of the RAMs are dead

seekario · Apr 10, 2014

Umm I did the memtest86 with no errors...
Also I got 8gb installed memory ram but I get the message (4.98 Usable) :S

bignastyid · Apr 10, 2014

Have you tested the ram sticks 1 at a time?

Jacob McIntosh · Apr 10, 2014

Lucas Iemini :

Yeah, that's what it probably is. To find out which one, download and run the program Speccy, and go to the RAM tab. If you have 4 sticks installed, Speccy will report 4. If you have 1 less stick being reported in speccy, that is the dead stick. RMA it. You may have to RMA the entire kit. Also, it it saying that there is 8gb installed, and 4.9gb usable, or that there is 4.9gb installed, and 4.9gb use usable?

Lucas Iemini · Apr 10, 2014

Jacob McIntosh :

Lucas Iemini :

Yeah, that's what it probably is. To find out which one, download and run the program Speccy, and go to the RAM tab. If you have 4 sticks installed, Speccy will report 4. If you have 1 less stick being reported in speccy, that is the dead stick. RMA it. You may have to RMA the entire kit. Also, it it saying that there is 8gb installed, and 4.9gb usable, or that there is 4.9gb installed, and 4.9gb use usable?

go along with Jacob's idea

seekario · Apr 10, 2014

So heres what I get.

BTw it says 8gb installed (only 4.9 usable)

Lucas Iemini · Apr 10, 2014

well... then its ssomething with your OS

emdea22 · Apr 10, 2014

ramdisk?

seekario · Apr 10, 2014

Because the common probleM is that out of 8gbs only 3.98 or 3.99 gb is usable but when is 4.98 it like blew me off :S
but idk if it has something to do with the OS or is the ram itself.
I just dont want to change it and have the same problem again :S

And no I dont use ramdisk

Lucas Iemini · Apr 10, 2014

well dude, I think ( Ive never seen it before, just makes sense to me) that inside the RAM stick, there might be a corrupted component, maybe the lauout is broken or something... I dont know... thats the first time I see something like that...

emdea22 · Apr 10, 2014

Check ram sticks one by one. Talking isn't gonna solve this one. Do that and check back

rwinches · Apr 10, 2014

Please, try one at a time.

Lucas Iemini · Apr 10, 2014

yeah, go along with them, they might be right and I want to learn too

seekario · Apr 10, 2014

yeah I'll try one by one makes sense to me..
See if that works

seekario · Apr 10, 2014

So I did what was mentioned(try them one by one) and same result with both..
In my system windows says installed Memory ram 4(gb) without the (usable)
:S

Lucas Iemini · Apr 10, 2014

well, with that said, I think you got two options: 1- buy other RAM sticks or contact the manufacturer. 2 - bring to a priest to bless and exorcise it.

emdea22 · Apr 10, 2014

weird stuff man. Honestly i never heard of this. Are you sure you don't have some retarded software creating a ramdisk? Windows bug maybe?! try a reinstall

seekario · Apr 10, 2014

yeah I never heard of it either , and is hard to find anything related to this on the internet ..
I was thinking on return it , but looks like they are fine
No error with mentest86
tried the both separate ...
I guess that gotta be my last step , a full format and re install of windows 7 ultimate..
I just dont feel like erasing all my data :S

bignastyid · Apr 10, 2014

Reinstall the ram in slots 1 and 3 and reset bios defaults with the jumper on the mothetboard.

seekario · Apr 10, 2014

bignastyid :

Well thats something I havent tried.
I've putting the mem stick with the color of the brackets.
Like grey to grey in my case.(I already tried the blac to black combination)
So ur suggesting that I connect one in black and one in grey?)
thanks btw

bignastyid · Apr 10, 2014

Yes it will run the memory in single channel rather than dual channel mode, to do this you could use either 1 and 3 or 2 and 4.

seekario · Apr 11, 2014

well I just understand what you just said , and it was like that before...
I even tried it putting one in bracket 1 and bracket 4(Different colors grey and black) and I get 8 gb installed but only 3.98gb usable
so doesnt make any difference. :S

seekario · Apr 11, 2014

So I tried resseting the Cpu also checking that there wasnt any bend pins.
Tried installing the stock Heat sink..
I tried talking to a corsair representative this is what they said
"This seems like a limitation of your board or of the OS. The RAM is being detected however, like I said there is either a limitation on the board or through the OS."

I got a GA-970A-DS3P gigabyte
http://www.amazon.com/gp/product/B00DJ3DWN2/ref=oh_details_o00_s01_i02?ie=UTF8&psc=1

And I also got Windows ultimate 7 x64
So basically I got nothing from that answer :S

PD: This is my memory btw

http://www.newegg.com/Product/Product.aspx?Item=N82E16820145345

PD: And to be honest I fell my system a lil slower than when I had all that old components in it :s

Just installed 8gb ddr3 and only 4.9 is usable..

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