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- Newsgroups: comp.sys.mac.hardware
- Path: sparky!uunet!nwnexus!kanefsky
- From: kanefsky@halcyon.com (Steve Kanefsky)
- Subject: Re: Daystar's PowerCache Power Consumption on a LC
- Message-ID: <1992Dec13.193138.19584@nwnexus.WA.COM>
- Sender: sso@nwnexus.WA.COM (System Security Officer)
- Organization: The 23:00 News and Mail Service
- References: <1gd40cINN78s@usenet.INS.CWRU.Edu>
- Date: Sun, 13 Dec 1992 19:31:38 GMT
- Lines: 54
-
- In article <1gd40cINN78s@usenet.INS.CWRU.Edu> al862@cleveland.Freenet.Edu (Brent D. McLean) writes:
- >
- > One of Daystar's competitors has an advertisement talking about
- >how the 8 watt PowerCache is drawing a lot more power than the 4 watts
- >the LC was designed to supply, and that by doing so it would shorten the
- >life of your LC. Can any of you technical gurus verify whether this is a
- >legimate point or just a marketing gimick. Thanks.
-
- I asked the same question to Steve Tuttle of Daystar over on Compuserve,
- and the jist of his reply was that:
-
- 1) Apple rates its power supplies very conservatively since the Mac Plus
- fiasco
-
- 2) They do extensive testing, using even bigger loads in high
- temperatures, and have never seen a case where the power supply failed
- because of the PowerCache.
-
- 3) Apple actually makes cards which violate their own rules. They
- support the use of their 8*24 video card in the IIsi, even though it
- draws more power than they rate the IIsi's slot for. DayStar
- has a contraption where they squeeze a 8*24 card *and* a PowerCache
- into a IIsi, and run it in a high-temperature environment, and they
- *still* haven't had any problems.
-
-
- If for some reason the PowerCache *did* cause your power supply to fail
- prematurely, it would only be the power supply anyway. It wouldn't
- "shorten the life of your LC." The LC power supply is quite modular and
- there are 3rd party companies that sell higher-capacity power supplies
- for the LC. There's no need to get one unless/until your LC power
- supply fails, though, which it probably never will. Another option is
- to get the expansion kit from DGR, which supplements your LC power
- supply with an additional 40W power supply, plus gives you 3 slots and
- room for a second low-profile or half-height 3.5" hard disk. It adds a
- "second story" to your LC. You install it by popping off the top of the
- LC, popping their unit in place, then putting the original LC top back
- on. It makes the LC (or LCII or Performa 400) a few inches taller, but
- no parts are removed or replaced and no tools are required to install
- it. It goes for $349. I've seen another product from a smaller company
- (judging by the little ad in the back of MacWorld compared to the
- full-page DGR ad) which gives you 2 slots and a bigger power supply, but
- it involves replacing the power supply and the top part of the case,
- rather than supplementing them. It also costs more (over $500 I think).
-
- The LC/LCII/P400 are such popular machines that I think you'll see a lot
- of interesting products becoming available. With the DGR unit, you can
- already have an LC running faster than a IIfx with big screen video,
- ethernet, and up to 1.7 gigabytes of internal hard disk space all at once.
- I also just saw the first 16-bit video card for the LC (on up to 16"
- monitors). It can't be long before there will be 24-bit cards as well.
-
- --
- Steve Kanefsky
-