Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!mips!ptimtc!nntp-server.caltech.edu!flowers From: flowers@caltech.edu (Dave Flowers) Newsgroups: comp.sys.mac.hardware Subject: Re: SE/30 screen flickers/no it doesn't/yes it does/... Message-ID: Date: 10 Jun 91 21:49:10 GMT References: <12163@skye.cs.ed.ac.uk> <1991Jun8.223327.25416@spool.cs.wisc.edu> <1991Jun10.194731.5008@mmm.serc.3m.com> Sender: news@nntp-server.caltech.edu Organization: California Institute of Technology, Pasadena Lines: 30 pejacoby@mmm.serc.3m.com (Paul E. Jacoby) writes: > I have an SE/30 with a RasterOps 264/30 24-bit video card. I just > recently swapped my internal 40 meg Sony drive out for a Quantum PRO > 105 megger. Now, on occassion, when starting the machine up, it goes > into a try-to-boot/reboot/try-to-boot cycle. When this happens, the > RasterOps logo comes up on my external monitor, accompanied by a lot > of BLUE NOISE--horizontal blue bars at random locations all over the > screen. If I let the machine sit, it will do the reboot-thing for > quite a while. Each time, the RasterOps card repaints the whole logo, > and the blue bars are there. > Eventually, I get tired of it and hit the Programmers switch. Sad Mac! Code > 000F 0013 or something similar. Hitting the Reset switch makes the > machine boot properly! After getting a good boot from the reset > switch, all is well, and life is happy. > Note that often I will boot just fine the first time; no delays, no > reboot, no blue bars on the monitor. Any ideas? I have no idea why the problem is irratic, but I think I do know what's wrong - you hard drive is flaky. Recently, my mac refused to boot - it displayed a disk with a very slowly flashing question mark icon. I took the drive out (the 40M that came with the mac) and put it back in, and it worked fine. (During testing, I noted that I didn't get a whine from the hard drive when I turned the computer on - my guess is the drive wasn't getting power, for whatever reason, and when I took it out and put it back in I reonnected the power.) I also got a Sad Mac! code 000F 0013 upon hitting the Programmer's switch. Hope this helps. Dave Flowers