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Dual channel memory problem

Last response: in Memory
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September 19, 2009 1:06:12 PM

My brand new custom built pc specs
Intel core 2 quad q8200
Gigabyte ep45 ds3p bios f8
650w psu i green power
1TB HDD
2x2048mb 800 mhz corsair memory ( problem)
1024 mb corsair ram



When i connect the 2 dual channel memory ram chips in the motherboard the system becomes unstable and doesnt boot successfully
when i just connect the 1 gig ram on it own the system boots perfectly
what is the problem
is there some sort of settings in the bios i must change?
BTW i am only 14 years old so i will not understand everything about the bios but im okay
thanks in advance
a c 80 } Memory
September 19, 2009 1:18:35 PM

What RAM are you using? Corsair have a lot of 1 GB modules. You can use CPU-Z to find out that info.
September 19, 2009 1:20:31 PM

GhislainG said:
What RAM are you using? Corsair have a lot of 1 GB modules. You can use CPU-Z to find out that info.

ok i will post ram info in a sec
Related resources
September 19, 2009 1:22:46 PM

Corsair ram info is
Part number for 1 gig
CM2X1024-5400C4
a c 80 } Memory
September 19, 2009 1:31:48 PM

According to CPU-Z, how is it configured (Memory tab)? What SPD tables are available? According to Corsair: "Tested at the low latencies of (4-4-4-12) at 2.0V". Are you running them at 667 MHz with the correct voltage and latencies?
September 19, 2009 1:47:17 PM

Dram frequency is 333.3mhz
FSB 1.1
Cas latency:5.0 clocks
Ras ro cas latency:5 clocks
Cycle times 15 clock
Row refresh cycle times: 36 clocks
Comand rate 2t
That is the full spec it is showing
September 19, 2009 1:47:50 PM

voltage 1.8v
September 19, 2009 1:51:35 PM

new 2 gig ram info is Part number
cm2x2048-6400c5
800mhz btw
a c 80 } Memory
September 19, 2009 2:17:14 PM

maney266 said:
new 2 gig ram info is Part number
cm2x2048-6400c5
800mhz btw
What do you mean? Are you trying to use one CM2X1024-5400C4 (667 MHz, 4-4-4-12 and 2.0V) module and one CM2x2048-6400C5 (800 MHz, 5-5-5-18 and 1.9V) module at the same time? If so, then you need to configure the RAM as per the CM2X1024-5400C4 specs and hope for the best. Unfortunately you didn't provide that important info in your original post.
September 19, 2009 4:08:53 PM

i want to use both 2 gig ram sticks
and the 1 gig ram stick
if that possible
if not both 2 gigs are fine
a c 80 } Memory
September 19, 2009 4:20:38 PM

Unless you run a 64 bit OS and you really need more than 4 GB, only use the 2 GB modules. If you need to use all three modules, then try the settings that I recommended.
September 19, 2009 4:23:34 PM

if i insert both of the ram sticks the pc doesnt boot
September 19, 2009 4:26:36 PM

even if i insert one of the two gig ram sticks the pc doesnt boot
September 19, 2009 4:27:12 PM

if there is no solution could you find a reasonably priced dual channel ram kit
a c 80 } Memory
September 19, 2009 4:28:37 PM

You wrote "if not both 2 gigs are fine , so I'm confused. It doesn't work with both 2 GB modules or it doesn't work when the 2 GB and the 1 GB modules are installed?
September 19, 2009 4:33:49 PM

Ok basically
The pc boots perfectly with just the 1 gig ram stick in place

The pc doesnt boot at all with any of the 2 gig ram sticks in place
a c 80 } Memory
September 19, 2009 5:06:42 PM

So if you install a single 2 GB module, it won't boot at all? If so, then they either are defective, incompatible or your RAM settings are not on Auto. Reset all memory settings to Auto or reset the CMOS.
September 19, 2009 5:31:17 PM

ok will try it
September 20, 2009 12:28:34 PM

nope looks like it was the same issue. i checked corsairs site and it is completely supported.
i will send it to corsair for repairs cuz of the life time warranty
a c 80 } Memory
September 20, 2009 1:13:44 PM

You should also contact them to make sure that they are compatible with your motherboard.
September 21, 2009 10:28:14 AM

they are compatible with the motherboard. but its been acouple of days now since ive contacted them maybe i should phone them
November 12, 2009 5:32:25 PM

Hello,

Have you got any solution? I'm with the same problem here. Thanks! :heink: 
!