Odd memory behavior

[mortimer]

I just built the system in my signature and am having some RAM speed problems. This MSI board is known to have problems with RAM. When I set the BIOS to run as DDR400 the system will not go above 12.5x113 (~1375 Mhz). If I lower the RAM speed to DDR333 I can get 12.5x160 (~2000 MHz). These are both at stock settings for voltage and RAM timing. The RAM is no-name with Samsung TTC4 chips (CL2.5). Any ideas? TYIA

[rhino56]

run memtest at stock setting and speeds and if you pass it then try giving the ram a little more voltage, try loosening up the timings. maybe its just not good ram

[mortimer]

Thank you! Not really sure what you mean by memory timings.

[stang8118]

Try switching around the DIMM sockets they are in. Test 1 stick at a time, how many sticks are you using?

[mortimer]

Two sticks of the same.

[tytlyf]

strange problem, possibly a motherboard issue. But even if you can run 12.5x160 at ddr400, you are still not getting DDR400. With that setting you are getting ddr320. I would lower the multiplier and up the frequency. try 10x200 at ddr400. Or even a lower multiplier with x200. I would stay away from using the " .5 " multiplier.

[mortimer]

ty. very likely a MB issue. right now all voltages, etc are "automatic"