Arto Huusko wrote:

> KN20AA_MCHECK: unknown check vector 0x630
> Warning: recived processor correctable error.
>
> Is this something to be worried about and what could the problem
> be?

See:

http://www.alphalinux.org/archives/axp-list/September2000/0031.shtml
http://mail-index.netbsd.org/port-alpha/2004/01/30/0000.html


0x630 seems to be a "correctable ECC error (retryable)".
Because it appears so frequently in your case, your RAM (or a single 
module) is probably broken.


Regards

Felix