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- Path: sparky!uunet!usc!news!proton!hope.llumc.edu!borodin
- From: borodin@hope.llumc.edu (Sergi Borodin)
- Newsgroups: comp.sys.ibm.pc.hardware
- Subject: Re: Arguments Against Local Bus? (Was: Local Bus, what is it?)
- Message-ID: <1992Sep9.205549.20736@proton.llumc.edu>
- Date: 9 Sep 92 20:55:49 GMT
- References: <1992Sep09.014838.22919@gibdo.engr.washington.edu> <1992Sep09.131756.11565@zeos.com>
- Sender: root@proton.llumc.edu (Operator)
- Organization: LLUMC Radiation Research Lab
- Lines: 31
-
- In article <1992Sep09.131756.11565@zeos.com> kgermann@zeos.com (Ken Germann) writes:
-
- !> I have pretty much decided on getting a 66DX2 vesa-local-bus system,
- !> but before I do, I'd like to hear some arguments against it. What
- !> are some of the drawbacks of a local bus? Wouldn't a 32-bit video card,
- !> a SCSI controller and an Ethernet card all the same bus cause some
- !> problems?
-
- !There will be timing issues that need to be addressed. They are
- !simpliefied with only having two Local Bus Slots.
-
- How come? Two slots put twice as much load on bus drivers,
- besides the capacitance of two slots will also be two times
- bigger. And if we'd count the capacitance of the traces, and
- all that at 33-50 Mhz.. You gotta be kidding.
- I understand that "Zeos" might be offering moms with
- two local bus slots, but ...
-
- Since CPU can't address two slots simultaneously I don't see
- (do you? tell me) why (despite commercial interest) two slots
- could cause better performance.
-
- !--
- !Ken Germann ZZZZ EEEE OO SSS ZEOS International, Ltd.
- !support@zeos.com INET Z E O O S Technical Support Dept.
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-
- Sergei Borodin
- Design Engineer
-