Memory problem

[BlackDragon]

I currently have Kingston DDR-400 with CAS of 3 (thats what it is rated for) DIMMs, then i installed some GEILs DDR-400 with CAS of 2.5 to bring me up to a total of 2GB.

After that i booted up and my mobo detects it as DDR333MHz, rather than DDR400MHz. Why is this? Is it because of a difference in CAS timings?

I went in to the BIOS and changed it to 400MHz, but now my RAM all operates at a CAS of 2.5 (which is good of course). My worry is that will my Kingstons die because they are operating at a CAS of 2.5 rather than 3?

Is there any chance of damaging my hardware by forcing my RAM to do this?

 

[Chris Beard]

Probably, wouldn't worry yourself too much about it though. Run some stability software like prime and memtest just to be sure it's stable though.

 

[steve258]

No you won't damage anything, windows will reboot / freeze / BSOD at most.

Do you have all 4 sockets ocupied?? that is probably why it is default to DDR333 for better compatibility.

It's good now you have all 4 sticks at DDR400 Cas2.5. Now you just have to run some memtest to make sure it is 100% stable.