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- Xref: sparky comp.sys.ibm.pc:1056 comp.sys.ibm.pc.hardware:34570 comp.unix.xenix.sco:3575
- Newsgroups: comp.sys.ibm.pc,comp.sys.ibm.pc.hardware,comp.unix.xenix.sco
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!news.acns.nwu.edu!nucsrl!ddsw1!karl
- From: karl@ddsw1.mcs.com (Karl Denninger)
- Subject: Re: What 486motherboards work with Buslogic 542B SCSI
- Message-ID: <C075p7.CH1@ddsw1.mcs.com>
- Date: Fri, 1 Jan 1993 22:41:31 GMT
- References: <926@gdx.UUCP> <1993Jan1.115712.1440@news.cs.indiana.edu>
- Organization: MCSNet, Chicago, IL
- Lines: 28
-
- In article <1993Jan1.115712.1440@news.cs.indiana.edu> "Michael Squires" <mikes@moose.cs.indiana.edu> writes:
- >In article <926@gdx.UUCP> jay@gdx.UUCP (Jay Snyder) writes:
- >>
- >>
- >>When I use it under SCO Xenix (2.3.2GT + UFN + xnx339), everything
- >>works fine until I load X (Roell's -- ported by Per Linquist). Then
- >>it crashes within minutes.
- >>
- >>This is also the case with non-GT Xenix on the same board (which is
- >>non-scsi, and in theory, shouldn't even try to access the board).
- >
- >This suggests that you have memory problems, caused either by marginal
- >SIMMs or a motherboard with ringing/noise on the memory bus. In either
- >case only substitution will find the problem if this is true.
-
- One other possibility -- bad (or too slow) cache RAM. This will blow you
- sky high on a Unix or Xenix system, but frequently works just fine under
- MSDOS.
-
- I've seen several cheap clone boards come with cache RAM that's 5ns too slow
- for the board's specs. The symptom was unpredictable crashes, usually
- within minutes of booting.
-
- --
- Karl Denninger (karl@ddsw1.MCS.COM, <well-connected>!ddsw1!karl)
- Data Line: [+1 312 248-0900] Anon. arch. (nuucp) 00:00-06:00 C[SD]T
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