Question : Problem: "Single-Bit ECC Errors in Memory Bank"

At bootup I see the message "Single-Bit ECC Errors in Memory Bank", but I am able to proceed with booting and nothing seems wrong.

I assume that at least one of the banks of ram is bad (I think I have either 4 or 8 banks in there).

Should I pull one out at a time until I find the broken one (and then replace it) or is it safe to just ignore it? If I can ignore it, is the speed of the ram impacted by this at all?

I don't know if my type of memory corrects single bit errors or simply detects them.

Answer : Problem: "Single-Bit ECC Errors in Memory Bank"

are these simms or dimms? does the mobo require matched ram in certain banks?

yes, you should try finding which one it is & remove it (one at a time)

but there are memory testers:
        http://www.memtest86.com/#download0
        http://www.simmtester.com/page/products/doc/docinfo.asp
        http://oca.microsoft.com/en/windiag.asp#top