XMS2x2048 800mhz on MSI K9A Platinum not working after RMA

[dpm]

Hi,

 

I originally had 2 kits of CM2x2048-6400C5DHX (means 4*2gb) of revision 1.2 on my board. They were running fine!!!

 

After one RAM Dimm produced errors, i got two new ones from Corsair, of revision 3.4. Now the Screen is staying black when i insert all 4 modules.

(I've tried every possible combination). When there are just two modules on the board everything works fine (every combination).

 

I've just tried the following:

• Decrease Memory frequency
  
• Increase Memory voltage
  
• Different bios revisions - 1.6, 1.7, 1.8, 1.9
  
• Increased Northbridge voltage
  
• Higher Hypertransport voltage
  
• Other graphics card ^^
  
• manual exact timings 5-5-5-18-2T
  
• manual slower timings 6-6-6-20
  
• memtest on every module
  

 

At also wrote a support request to msi, they just said that the ram is probably not compatible with my board.. :rolleyes:

 

It would be really nice if someone could give me a suggestion to solve the problem.

 

Regards

Philipp