Thierry de Coulon posted <[EMAIL PROTECTED]>, excerpted below, on Sat, 25 Feb 2006 21:04:35 +0100:
> So, I am wondering what causes the conflict: the board, the opterons, > Gainward's card? > Has anyone a 6600GT running fine ona double opteron? It could be the marginal timings between the card and the board (and the main memory). Sending signals of hundreds of megahertz thru not only a hard-wired (and factory tweakable) mainboard, and a similar expansion card, but thru the slot connector, is inherently an unstable situation. Some cards will simply cause problems with some boards, even tho both are within spec and "work" in general, and there's not much that can be done about it except switch things out to get something that works. Of course, timings on a dual CPU board are going to be even more finely tuned, and memory as well has signals at hundreds of megahertz, and a socket that introduces a slight bit of variability in capacitance and connectivity on each conductor -- that can make HUGE difference at hundreds of megahertz radio frequency. Power, as already mentioned, is probably a more common issue than this, but... -- Duncan - List replies preferred. No HTML msgs. "Every nonfree program has a lord, a master -- and if you use the program, he is your master." Richard Stallman in http://www.linuxdevcenter.com/pub/a/linux/2004/12/22/rms_interview.html -- gentoo-amd64@gentoo.org mailing list
