Len263 Posted February 16, 2010 Share Posted February 16, 2010 Good day I am trying to add 2 CMX1024-3200C2PT to my computer which already contains 2 CMX1024-3200C2PT modules but the screen remains black when I startup with the 4 modules. The markings on the existing modules are as follows CMX1024-3200C2PT XMS3202v3.1 07220051 The markings on the new modules are as follows: CMX1024-3200C2PT XMS3202v8.1 07495116-0 I have rum memtest86 on all modules and they all pass. Is there an incompatibility between the modules or must I change some settings? My current settings are: DRAM Voltage: 2.8 volts CAS : 3 Trcd: 3 Trp: 3 Tras: 6 System components: Motherboard: DFI Lanparty UT NF4 Ultra-D CPU: AMD Athlon 64 X2 Dual core 4400+ PSU: Thermaltake Toughpower 850W Video card: ATI Radeon X1900 Thank you for your assistance Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted February 17, 2010 Corsair Employees Share Posted February 17, 2010 Try setting the timings at 3-3-3-8 and then lower the memory frequency down to 333MHz to see if it helps. Please let us know the results. Link to comment Share on other sites More sharing options...
Len263 Posted February 17, 2010 Author Share Posted February 17, 2010 GREAT, the computer now boots up with all 4 memory modules. However, in the Control Panel I read the following: Installed Memory (RAM): 4.00GB (3.25GB usable) Is this normal? Thanks again BTW, I am using Windows 7 Link to comment Share on other sites More sharing options...
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