DDR2 533/667/800 Motherboard Compatibility

[mrrogerz]

Hello,

I bought a ECS G33T-M2 motherboard and an E6550 Core 2 Duo. I built the computer and I am not getting a post-screen.

I thought maybe it was because I was trying to use DDR2 533 Ram when this motherboard offically supports "DDR2 800/667" (according to the link above).

Officially supporting those bandwidths, is it not backwards compatible to DDR2 533 ram?

Could this be why I am not getting a post-screen?

I've built other computers before, however, with standards changing every 5 or so months, it's hard for me to remember whats backwards compatible and not.

Thanks for your time,

MrRogerz

 

[Drexl]

I've heard of this recently. Yes, some boards now will not work with DDR2-533 memory.

 

[mrrogerz]

Thanks for the input,

I'm going to run to the electronics store tomorrow and pick up a stick of DDR2 667 SDRAM. keeping my figures crossed.

 

[Blain]

Originally posted by: mrrogerz
I thought maybe it was because I was trying to use DDR2 533 Ram.

> Post the specs of your DDR2 533. <

1. Your CPU is designed to run on a 1333FSB (4x333)
2. Your DDR2 533 memory is designed to run on a 533FSB (2x266)
3. You'll have to set the memory to CPU ratio accordingly.
4. You should have DDR2 667 to run 1-1 with your CPU.

The memory speed issues are just a starting point.
There may still be some other things causing your no-post problem.

 

[mrrogerz]

Thanks for all the input,

Looks like the ram was the problem. Getting post-screen now.

Thanks again.