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- Path: sparky!uunet!virgin!unhtel!mozz.unh.edu!svpal4.unh.edu!paul
- From: paul@svpal4.unh.edu (Paul Secinaro)
- Newsgroups: comp.sys.ibm.pc.hardware
- Subject: Re: Gateway 486 simm configurations
- Date: 30 Dec 1992 22:18:00 GMT
- Organization: Synthetic Vision and Pattern Analysis Lab, University of New Hampshire
- Lines: 36
- Message-ID: <paul.7.0@svpal4.unh.edu>
- References: <92364.174405JXS118@psuvm.psu.edu>
- NNTP-Posting-Host: svpal4.unh.edu
-
- In article <92364.174405JXS118@psuvm.psu.edu> Jeff Siegel <JXS118@psuvm.psu.edu> writes:
-
- >Gateway is selling their 486 systems with 8 meg of ram. The salesperson
- >claims that the machines are shipped with two 4 Meg simms. Now given that
- >a simm is 8 data bits and a parity bit, does this mean that the
- >micronics motherboards gateway is using use only 16-bit access to the
- >main memory? I always thought that simms had to be added in multiples of 4
- >to have a 32-bit wide main memory.
-
-
- SIMMS have to be added in such a way that they are always 32-bits wide (or
- 36 if you count parity). For 9-bit SIMMS, this means you have to use
- multiples of four.
-
- But the Micronics motherboards in the new Gateways use 36-bit SIMMS.
- Plug in one SIMM, and bingo, you have 4MB of memory (or 1MegaWord, where
- a word is 32 bits wide).
-
-
-
- >
- >I know a person who bought one of these systems with 8 Meg of Ram.
- >Windows 3.1 won't let him turn on the "32-bit disk access" option. Is
- >this related?
- >
-
- This usually means that Windows did not detect a 100% WD-1003 compatible
- disk controller. Only certain controllers are allowed to use 32-bit disk
- access. My system, for example, has a SCSI controller and Windows won't
- allow me to use 32-bit access.
-
-
- --
- Paul Secinaro, pss1@kepler.unh.edu
- Synthetic Vision and Pattern Analysis Lab
- EE Dept., University of New Hampshire
-