Path: utzoo!attcan!uunet!zephyr.ens.tek.com!gvgpsa!gold!grege From: grege@gold.GVG.TEK.COM (Greg Ebert) Newsgroups: comp.sys.ibm.pc.hardware Subject: Re: Freezing 386 Message-ID: <1583@gold.GVG.TEK.COM> Date: 16 Oct 90 18:15:05 GMT References: Organization: Grass Valley Group, Grass Valley, CA Lines: 13 In article sigma@pawl.rpi.edu (Kevin J Martin) writes: >Does anyone have any ideas as to why a 386/33 might freeze up under certain >conditions? Because the problem is apparently repeatable (instead of random/intermittent), I smell an 'incompatibility bug' lurking about. Some of the "generic" designs overlook the CRITICAL (I cannot over-empahsize this word) nit-pickys about GATE_A20, restart, and Port B. If you can beg/borrow/steal the IBM Advanced Diagnostics, you can narrow down the bug. Anything that does a lot of Real <--> Protected mode switches and dies predictably points to an incomaptibility. I saw some truly bizarre stuff while debugging a PC design at a previous employer.