computer won't run 4 sticks ram

N

newbuilderkid

New Member
I have a Gigabyte motherboard GA-MA69G-S3H which supports up to 16 GB dual channel ram (ddr2 800) and has 4 slots. The problem is it will run any 3 out of the 4 sticks (2 sets of dual channel) G.Skill F2-6400CL5D-2GBNQ ddr2 800 ram but not 4. I test each of these 1 GB sticks individually and in pairs at the preset 1.8v so I know they all work. With one dual channel 2GB kit in, every part of vista 64 bit runs well. With 4 sticks however, the computer will not even post unless I raise the voltage to 2.0v (the ram box suggests from 1.8-2.0v), but then white lines often occur at startup, shutdown, and windows messages, and there are problems with sound. I tried upping the voltage to 2.05 and even 2.1. What should I do, go even higher? Thanks.

P.S. If i do not find a solution in the next week i will sell one 2x1GB kit for 50 dollars (free shipping) so if interested email me at [email protected]
 
The 3gb barrier still is seen as a problem in the 64bit as well as 32bit OSs. That's since the 64bit versions are still in need of real support since they are considered secondary versions by MS still. The real problem there however has more to do with the chipsets seen on the new boards with 8gb and 16gb capacities since those are the same chipsets found on 2gb and 4gb models.

One thing to look at with 4 dimms installed is the dram timings to see if those are still set to auto or need a manual setting. I wouldn't toy around with the voltages there since that hasn't helped any. The thing to do there since 3 out of 4 seem to work and a pair seems to run the best is to keep 1 or 2 dimms aside as spare ram in case one of the others develops faults down the line and needs replacement. When a pair of 800 dimms were seeing 667 here on the first post the dram timings were manually set to correct that. You may have to tweak something there to all 4 actually work like slowing it down from a Cas 4 to 5.
 
I,ve run alot of G Skill with Gigabyte boards and never had a problem, check and see what the board it running the timing at and see what it suppost to be at stock, you might just need to raise it some.
 
Everything points at the board there. Even with some problems seen running larger amounts of memory with 64bit versions the system should still see a normal startup unless a setting change is needed or you simply have a bad dimm slot present. With only 2 or 3 dimms in have you tried them in all slots?
 
You say you've tested all the RAM but have you tried all the slots?
The 3gb barrier still is seen as a problem
Click to expand...
That's not the problem here. It's that the board will not POST with all the RAM installed
 
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