banshee@ucscb.UCSC.EDU (Wailin' Through The Nets) (05/03/90)
My z-159 has been slightly flaky over the last several months. Since I've replaced the CPU and switched to 4dos, I assumed that it was my problem. However, running 'ramtest' by Brown Bag indicated that I had a parity error. The program claimed the error was in the parity chip of the third bank of chips. Which chip is the parity chip? post or mail, I read the group banshee@ucscb.UCSC.EDU
michelbi@oregon.uoregon.edu (05/03/90)
In article <3022@darkstar.ucsc.edu>, banshee@ucscb.UCSC.EDU (Wailin' Through The Nets) writes: > was in the parity chip of the third bank of chips. Which chip > is the parity chip? Usually, the parity chip is the last chip of bank. In your specific case, Z-159, check the chip ID numbers. They must be increasing in some orderly fashion. The last one on the third bank should be it. There exist a piece of software called CheckIt from Performance Computer Diagnostics (813) 443-1331, that will actually draw a picture of the bank, and visually isolate that bad chip. I hope this helps... Michel Biedermann michelbi@oregon.uoregon.edu Zenith Data Systems U. of Oregon Student Representative
RFM@psuvm.psu.edu (05/04/90)
Check it out with the Zenith ROM-Based test routines. Press a CTL>ALT>INS; at the prompt write "TEST", then choose memory test from the menu. Let the test run thru a couple or three times, and note any error messages. This is the DEFINITIVE diagnostic routine for Zenith Z159. Bob M., PSU-Harrisburg.
banshee@ucscb.UCSC.EDU (Wailin' Through The Nets) (05/05/90)
In article <90123.181605RFM@psuvm.psu.edu> RFM@psuvm.psu.edu writes: >Check it out with the Zenith ROM-Based test routines. Press a >CTL>ALT>INS; at the prompt write "TEST", then choose memory test >from the menu. Let the test run thru a couple or three times, and note >any error messages. This is the DEFINITIVE diagnostic routine for Zenith >Z159. I've run this before, often overnight, without any problems but it seemed to me that it was only testing the first bank of RAM and not the entire memory. Is this correct? Will TEST check EMS memory once it is installed? My impression that it was only checking the first bank was watching TEST run before and after I added a bank of memory. banshee@ucscb.UCSC.EDU
RFM@psuvm.psu.edu (05/07/90)
<90123.181605RFM@psuvm.psu.edu> <3104@darkstar.ucsc.edu> My impression is that TEST checks out all memory. I have a Z-159, started out w ith what?? 768K ???, and have since filled the memory board up -- now I have 1.2megs. Seems to me that TEST runs through more banks now than it did before. I've never noted all the addresses before & after, so I could be wrong . Bob M., PSU-Harrisburg.