• Please review our updated Terms and Rules here

080000 0000 201 Memory Error - PARITY CHECK 1 IBM 5162 problem

aihk

Member
Joined
Jul 28, 2021
Messages
22
I found an old 5162 computer, when start to [080000, 0000, 201 the Memory Error - PARITY CHECK 1) problem. The Memory chips are changed, is still the same Error. Don't know is there any other place can cause this error
 

Attachments

  • photo63558.jpg
    photo63558.jpg
    35.1 KB · Views: 1

modem7

Veteran Member
Joined
May 29, 2006
Messages
7,896
Location
Melbourne, Australia
80000 = error at address 512 KB
From the the information at [here], the problem is expected to be in the chips that comprise the 128 KB component of motherboard RAM (the blue chips in the diagram).

0000 = no data bits in error, which together with the "PARITY CHECK 1" error suggests a problem with one of the two parity bits.
From the the information at [here], the problem is expected to be either a faulty U4 or a faulty U1.
But rather than one of the chips being faulty, maybe the problem cause is a poor electrical connection - try reseating U4 and U1.
 

aihk

Member
Joined
Jul 28, 2021
Messages
22
80000 = error at address 512 KB
From the the information at [here], the problem is expected to be in the chips that comprise the 128 KB component of motherboard RAM (the blue chips in the diagram).

0000 = no data bits in error, which together with the "PARITY CHECK 1" error suggests a problem with one of the two parity bits.
From the the information at [here], the problem is expected to be either a faulty U4 or a faulty U1.
But rather than one of the chips being faulty, maybe the problem cause is a poor electrical connection - try reseating U4 and U1.

Thank you very much, I replaced the U1, U4。 This problem have no
 
Top