MCP61PM-HM (Iris) and memory issues

Pierce Devol

Honorable
Apr 2, 2013
6
0
10,510
I have an old compaq that I am trouble shooting. The motherboard is an MCP61PM-HM (Iris). Documentation states that it can use both DDR2 5300 & 6400 speeds. It states that it can support up to 4GB. It works fine with a single 1GB stick of either speeds. It refuses to work with 2 x 1GB stick of any configuration. Both slots work independently. With 2 sticks: most of the time it doesn't POST or show the logo. Sometimes it shows the logo. Sometimes it posts then freezes immediately. I can sometimes press the button to access cmos settings, but they never load. The display will also be distorted (I want to say artifacting?)

I think it it must be something with the Front Side Bus or the whole north bridge, but something with the motherboard in general.

But, would trying 1 x 2 of DDR2 be worth the price? Do you think I'd get the stick and find the same or similar problems and have to replace the motherboard anyway?

Should this be posted in the memory section?