[LinuxBIOS] Current Status of DFI P2XBL (440bx w/ w83977ew)
corey_osgood at verizon.net
Thu May 10 06:08:59 CEST 2007
> BTW: I've set up my asus/p2b/auto.c to mimmick the tyan/s1846/auto.c
> So DRAM *should* be working and getting to at least elfboot.
> Only things I can think of would be DRAM timing too.
roger, only test with one dimm for now, single sided if possible, and in
the first slot. It's very possible that dram init is only working for
the first dimm. Once that's working, try to get the rest going. And
afaik, the timings being used right now (CL3) should be safe/sane for
any sdram dimm. Also check that your dimm(s) are capable of running the
same speed as your cpu's frontside bus, I haven't looked at the code
recently but I'm going to guess that it's still set up to statically set
the ram to the same speed as the fsb. When I was working with it, I was
using an old 466MHz celeron (66MHz*7) and PC100 ram to make sure this
was a non-issue. Let me know if you need a cpu with a slower fsb, I must
have a few dozen old celerons and pentium 2s kicking around, socket 370
and slot 1.
Also, asus p2b's auto.c is fixed in the latest revisions ;)
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