home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: comp.sys.mac.hardware
- Path: sparky!uunet!haven.umd.edu!darwin.sura.net!wupost!sdd.hp.com!swrinde!network.ucsd.edu!munnari.oz.au!hp9000.csc.cuhk.hk!cucs5.cs.cuhk.hk!skwong
- From: skwong@cuse1.se.cuhk.hk (Wong Sai Kee (Graduate Assistant))
- Subject: Re: IIsi accelerators and big video
- Message-ID: <1993Jan3.114806.2791@cucs5.cs.cuhk.hk>
- Sender: news@cucs5.cs.cuhk.hk
- Organization: Faculty of Engineering, The Chinese U. of Hong Kong
- References: <jdsmc-221292173235@kidsnoopy.lahabra.chevron.com> <1992Dec29.130336.26543@cucs5.cs.cuhk.hk> <1992Dec30.162819.1766@ryn.mro4.dec.com>
- Date: Sun, 3 Jan 1993 11:48:06 GMT
- Lines: 67
-
- akhiani@ricks.enet.dec.com (Homayoon Akhiani) writes:
-
- >|>>I am about to purchase a DayStar PowerCache 40MHz with FPU. My question
- >|>>is how do people like them and if I decide to get a 16" or 19" monitor
- >|>>later in the year, will there be enough room and power to run the monitor?
- >|>
- >|>I also want to buy an accelerator card (may be the newer & cheaper
- >|>LogicXXXX 50MHz030 w/ FPU) and a 24bit Color w/ digitizer (e.g. the
- >|>VideoSpigot Pro) in the future. And I also concern about the power
- >|>consumption & heat problem in a Mac IIsi as the Technical Manual said
- >|>the max limited is 7W only and the VideoSpigot Pro is 15W?
- >|>
- >(from what I know)
- >1st: DayStar Dualport IIsi let you plug in a Powercache and still have another
- >PDS slot. How much power is avaliable there? I asked them at MacWorld, their
- >answer wasn't clear! When you buy a Powercache for IIsi the sell you a adapter
- >which "looks" excatly like DualportIIsi.
-
- I know.
-
- >2nd: From "Guide to design NUbus card" (or something like that) published by
- >Apple, the IIsi Nubus slot supplies 13.3W (I really don't know where you heard
- >7W)
-
- Strange enough, the "Mac IIsi,LC, & Classic Developer Notes APDA
- M0991LL/A" didn't told me how much power can the PDS deliver? P.56
- pointed the reader to check it out from Chapter 14 of "Designing Cards
- and Drivers for the Mac Family, 2nd ed". For the sake of updated
- information, I ignored the 2nd ed from my bookshelf and checked the 3rd
- ed. P.115 said 13.3W as you had mentioned. But . . . P.353 stated for
- thermal considerations, the total power of the expansion card should not
- exceed 7W. If this implied the expansion card only (not included
- adapter card), then adding the adapter card's maximum consumption in
- P.362 for 2.5W, the total should be 9.5W only. See?
-
- So, it is not I heard from somewhere, it is printed on Apple's
- document.
-
- >3rd:Supermac has something called VideoSpigotProIIsi. Thats a 24bit display card
- >+ the normal Spigot.(they using a adapter called "0 Slot Adapter"!)
-
- I want the 24bit accelerated graphics (claimed as 6 times faster) and
- the video digitizer. My understanding (may be wrong) is 0 Slot Adapter
- is something like the Powercache's Dualport IIsi.
-
- >As far as I know, If you really need to have Powercache and 24bit display,
- >TODAY's solution is to get a NUbus expansion box (NB4) from SecondWave Inc.
- >(I saw it at MacWorld, has anyone ever used one of these?)
- >and your IIsi will have 4 Nubus slot * 13.3 Watt each.
-
- My conflict is: I want as compact as IIsi (else I will use ci as well)
- with 50MHz 030 + accelerated QuickDraw + video digitizer.
-
- >TOMORROW, someone might come up with a 24display card to be used by Powercache
- >in a IIsi.
-
- I hope so.
-
- Mr.Sai-Kee WONG
-
- >--
- >-------------------------------------------------------------------------------
- >Homayoon Akhiani "Turning Ideas into ... Reality"
- >Digital Equipment Corporation "Alpha, The New Beginning"
- >77 Reed Rd. Hudson, MA 01701 "All Rights Reserved. Copyright(c)1992"
- >Email: akhiani@ricks.enet.dec.com "The words are mine, and not my employer"
- >-------------------------------------------------------------------------------
-