Sign in with
Sign up | Sign in
Your question
Solved

Dual Channel Memory Not Working?

Last response: in Motherboards
Share
August 30, 2012 7:37:00 PM

hi all i just recently purchased my motherboard from amazon as i recall i bought a "new asrock z77 extreme 4" that supports dual channel memory and can hold atleast 28 gb of installed ram now my problem is i checked my mother board manual it says "it is recommended to install them in slots DDR3_A1 and DDR3_B1, or DDR3_A2 and DDR3_B2" so I did what the manual recommended and when i run my computer i get an dr.debug error 55 i tried repositioning the ram in the other ram slots and i noticed that slot A1 and A2 are working (no dr.debug errors and is able to run win 7) but when i check cpu-z and my computer specs it says 8GB ram Installed but (3.87 usable) so i was thinking this is only single channel i'm wondering if my motherboard ram slots are defected is there some kind of way to make dual channel memory work? and do i need to update my bios?


specs
cpu: intel core i5 2380p Sandy Bridge
Mobo: Asrock z77 Extreme 4
GPU: Zotac Geforce 550 ti 1gb ddr5
RAM Corsair Vengeance 2x4 DDr3(8gb installed but 4 usable help pls)
PSU:700 watts
Harddrive:WD green 7200 rpm
ODD:LG DVDWriter
Case SilverStone Local Brand

PS i have win7 64 bit os
and the memory model is Corsair Vengeance CMZ8GX3M2A1600C9
BIOS Version 1.20

any help is appreciated
a b V Motherboard
August 31, 2012 6:34:23 PM

Install RAM nearest to the cpu.
Slot 1 and 3 or Slot 2 and 4.
Dual channel memory doesn't require any configuration.
m
0
l
a b V Motherboard
a b } Memory
August 31, 2012 6:56:01 PM

check if your onboard vga in bios is on or not. onboard gpus can take up ram for shared video memory
m
0
l
Related resources
a b V Motherboard
a b } Memory
August 31, 2012 7:05:51 PM

Looks like another ram is not detected. IGPU will share more than 4gb. Is A2 and B2 doing same? I suggest check memory module separately if they can run system. Take out other memory to boot and then with another. It will ensure if there is any faulty memory.
m
0
l
August 31, 2012 11:40:00 PM

unreal9400 said:
Install RAM nearest to the cpu.
Slot 1 and 3 or Slot 2 and 4.
Dual channel memory doesn't require any configuration.

yes i tried that also and i also tried 1 stick at a time the problem is slot B1 and B2 is not working and always show the error 55 and wont boot up and there's this thing i've been reading in some posts in the forums about dual channel mem's not working because some pins in the cpu are bent? if i do have a bend pin then why can i boot up my os?
m
0
l
August 31, 2012 11:40:20 PM

mubin said:
Looks like another ram is not detected. IGPU will share more than 4gb. Is A2 and B2 doing same? I suggest check memory module separately if they can run system. Take out other memory to boot and then with another. It will ensure if there is any faulty memory.

there are no faulty memory actually only slot b1 and b2 are not working and it shows the error 55 dr debug displayed in the mobo and i also tried it seperately from A1- B2
m
0
l
a b V Motherboard
a b } Memory
September 1, 2012 3:48:32 AM

PatrickStarr said:
there are no faulty memory actually only slot b1 and b2 are not working and it shows the error 55 dr debug displayed in the mobo and i also tried it seperately from A1- B2


What about A2 and B2 not A1 and B2?
m
0
l
a b V Motherboard
September 2, 2012 9:48:29 AM

Update bios under Windows.
Usually updated bios contains fixes and enhancement that will improve your motherboard capability and support such as new cpu support and compatibilty issue.
Give it a try and let me know if it works.
m
0
l

Best solution

a b V Motherboard
a b } Memory
September 2, 2012 11:32:24 AM

Bios update dont fix memory issue, but new cpu stepping, feature and better overclock.

Maybe your memory slot is faulty.
Share
September 2, 2012 1:29:47 PM

unreal9400 said:
Update bios under Windows.
Usually updated bios contains fixes and enhancement that will improve your motherboard capability and support such as new cpu support and compatibilty issue.
Give it a try and let me know if it works.

ok i will give it a try
m
0
l
September 2, 2012 5:03:30 PM

unreal9400 said:
Update bios under Windows.
Usually updated bios contains fixes and enhancement that will improve your motherboard capability and support such as new cpu support and compatibilty issue.
Give it a try and let me know if it works.

i successfully updated my bios to 2.00 but yeah i think this is the problem with inside the motherboard dimms slot i may have to send this motherboard back to amazon and hope to get this mb replaced thank you for your help if there is any more suggestions i might try it out before i send this one out
m
0
l
September 2, 2012 5:05:23 PM

mubin said:
Bios update dont fix memory issue, but new cpu stepping, feature and better overclock.

Maybe your memory slot is faulty.

yes that was my hunch i also tried different ddr3 ram gskills i think i forgot the exact model but yeah i will send this back for a replacement
m
0
l
September 9, 2012 8:20:19 AM

Best answer selected by PatrickStarr.
m
0
l
!