mrkf74 Posted September 28, 2010 Share Posted September 28, 2010 In a computer that I built about 4 years ago I initially installed 1GB of Corsair ValueSelect RAM (2 x 512, VS512MB400, PC3200, 184pin, double-sided) in 2 slots (4 slots available) on MSI K8N Neo2 Platinum MS-7025 motherboard. I have a AMD Athlon 64 3000+ Socket 939 chip (1.8MHz, System Clock 200 MHz) which I have overclocked to run at 2.3MHz (System Clock 256.0 MHz). I purchased the other day another 1GB Kit (VS1GBKIT400, 2 x 512GB) of the same memory (only difference is they are now single-sided) to install in the other two slots to make it 2GB system. However, when I installed the new RAM the system will not boot up (just a blank screen). So then I removed my old RAM sticks and put in the new ones in the same slot and when I hit the power button the computer will start up, but not boot (same black screen). Here is the information for my memory when I use the System Information for Windows program. Memory Summary Maximum Capacity 16384 MBytes Max Memory Module Size 4096 Mbytes Memory Slots 4 Error Correction None DRAM Freq 209.5 MHz Memory Timings 3-3-3-8 (CL-RCD-RP_RAS) Device Locator Slot 1 Manuf Corsair Part# VS512MB400 Capacity 512 Mem Type DDR (PC3200) Speed 200 MHz Support Freq 200 MHz Memory Timings 2-3-3-8-9 at 200.0 MHz, at 2.5 volts (CL-RCD-RP-RAS-RC) The above info is the same for Slot 2 as well. The Corsair website shows the following for the 1GB Kit that I got: VS1GBKIT400 PC-3200 1GB Kit 2.5-3-3-8 184pin DIMM One thing I did notice is on the new RAM sticks they have only 8 memory chips on one side compared to 8 chips on both sides (16 total) on the old RAM sticks. Is the new set being single sided and old one being double sided make a difference? And for some reason they seem to sit a bit lower compared to my old RAM sticks. But even if I can't mix and match single-sided with double-sided, why isn't the single-sided new 512MB sticks working by themselves in the same lots as my old 512 sticks? I've tried the other slots and nothing seems to work. I know the other slots are fine since I put my old 512 in those slots and it works. Link to comment Share on other sites More sharing options...
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