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- From: fan@tammy.cath.puh.upmc.edu (Ningping Fan)
- Newsgroups: comp.sys.sun.hardware
- Subject: RE: IPX vs SS2 & Local Bus
- Message-ID: <FAN.92Jul30120057@tammy.cath.puh.upmc.edu>
- Date: 30 Jul 92 16:00:57 GMT
- Sender: news+@pitt.edu
- Distribution: comp.sys.sun.hardware
- Organization: School of Medicine, Univ. of Pittsburgh, USA
- Lines: 38
-
- >>Does anyone notice that IPX uses a GX on the cpu board, but SS2 uses
- >>a GX S-bus board. If we assume that GX on the cpu board is on the local
- >>bus, then it would be faster than SS2 in graphics?
- --
- >From David.Kahn@eng.sun.com Wed Jul 29 07:14:25 1992
- >
- >Though the silicon is physically on the motherboard, the device,
- >along with the on-board scsi host adaptor (esp0) and the on-board
- >ethernet device (le0) are all Sbus devices. They still operate
- >as Sbus devices. So, the answer is no.
- >
- --
- >From dpkemp@afterlife.ncsc.mil Wed Jul 29 08:42:08 1992
- >
- >What do you mean by "the local bus"?
- >
- >S-bus is a peripheral bus that is used by the GX, ethernet, etc. regardless
- >of whether they are on cards or the cpu board.
- >
- --
-
- The local bus officially is the one anounced by Intel for its
- X86 motherboard. But in general we use the name to refer any bus
- directly connected with the cpu chip. In other words, the
- clock of the bus is the clock of the cpu chip, and the width
- of the bus is the width of the cpu chip. This convention has
- been used by other computer vendors, such as NEXT Inc.
-
-
- --
- --
- Ningping Fan, Ph.D., | ning@vms.cis.pitt.edu,
- School of Medicine, | fan@caroline.ee.pitt.edu
- Univ. of Pittsburgh, | fan@tammy.cath.puh.upmc.edu
- Pittsburgh, PA 15213 |
- (Tel) 412-647-6992 | Respect is a virtue of humanity.
-
-
-