Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!rutgers!usc!henry.jpl.nasa.gov!elroy.jpl.nasa.gov!grian!alex From: alex@grian.cps.altadena.ca.us (Alex Pournelle) Newsgroups: comp.sys.mac Subject: Re: MacIIx Power Supply Upgrades Message-ID: <1989Sep25.090240.26215@grian.cps.altadena.ca.us> Date: 25 Sep 89 09:02:40 GMT References: <2842@skivs.UUCP> Organization: College Park Software, Altadena, CA Lines: 24 jmm@skivs.UUCP (Joel M. Miller) writes: >It seems relatively easy to exhaust the capacity of the MacIIx power supply. >I appear to have done it with 4MB RAM, a Relax WrenV disk, a Supermac >Spectrum8/II video card, a Tecmar NuLink tape card, and a National Instruments >NB-MIO-9 multifunction data acq card. >Does a power supply upgrade exist? In the PC universe, we'd get a bigger power supply. That hard drive isn't small; you could externally power it from a PC supply (I'm only half-joking). Alternately, you could comb the power-supply catalogues for a comparable supply of similar form factor. Power supplies are the great undiscovered gotcha in the Mac. Over in PC-land, we all got bit early and often by this one; even your 250-watt supply has no overvoltage protection, so it's *SNAP* everytime a component cooks. Unless you spend $180 on a PC-Cool or similar U.S. supply. Sorry, don't think they've gotten to Macses yet. Ask Sony--they make most of the Mac supplies. Alex