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- Newsgroups: comp.sys.ibm.pc.hardware
- Path: sparky!uunet!usc!sol.ctr.columbia.edu!destroyer!ubc-cs!unixg.ubc.ca!physics.ubc.ca!unruh
- From: unruh@physics.ubc.ca (William Unruh)
- Subject: AMI Cmos settings. What do they mean?
- Message-ID: <unruh.714509027@physics.ubc.ca>
- Summary: AMI Cmos settings. What do they mean?
- Keywords: AMI, page mode, A20, hardware
- Sender: news@unixg.ubc.ca (Usenet News Maintenance)
- Nntp-Posting-Host: physics.ubc.ca
- Organization: University of British Columbia, Vancouver, B.C., Canada
- Date: Sat, 22 Aug 1992 18:43:47 GMT
- Lines: 12
-
- I have a 486-33 computer with PCChips chip set. In the Advanced Cmos
- settings there are two entries I do not understand.
- 1) Fast Page Mode - enabled/disabled. What is this supposed to do?
- ( The manual says "depending on the specification of the DRAM)
- I have 8 Meg of 1Meg chips filling banks 1 and 2 60ns. Enabeling it
- seems to slow things down rather than speed them up ( very subjective
- impression)
- 2)A20 emulation- Hardware/chipset/Disabled(8042 controls A20)
- Which of these should be run?
- Finally there are the ATbus stuff- AT Bus clock =CPUclk/2,3,4,6,8-can
- this be set to the highest speed before things get flakey?
- I/O recovery time delay-2,4,8,12 BCLK delay- what does this do?
-