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Qi 486 Rev 'D' Motherboard Revision History
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Information sourced from Mitsubishi Electric's Insight CD page (rev. 1.1.17).
| Item |
Build
Ref |
Reason For Change |
Rev. |
Date |
I/O Board Qi/Pan
+ ROM's
P/N 14898831
Rev D |
20816 |
Initial Release |
01 |
11/12/91 |
| 20824 |
Release 148953RW Specification |
02 |
14/2/92 |
| 21057 |
Various Changes |
03 |
6/3/92 |
| 21051 |
Update Firmware to V 1.02.23 |
04 |
16/3/92 |
| 21940 |
Update BIOS to V 1.02.25 |
05 |
4/3/93 |
| 21966 |
Update 121874SW to V1.20.02 |
12 |
22/3/93 |
I/O Board
(NON 82C402)
P/N 12195831
Rev D |
13105 |
Initial Release |
01 |
31/1/91 |
| 13183 |
Various Changes |
02 |
1/5/91 |
| 20060 |
Various Changes |
03 |
22/5/91 |
| 20120 |
Release PALs/GALs |
04 |
27/5/91 |
| 20279 |
Various Changes |
05 |
4/7/91 |
| 20243 |
Change SRAM etc. |
06 |
1/10/91 |
| 20632 |
Fit Heat sink to IC83 |
07 |
5/10/91 |
| PP3957 |
Remove Snubbers S1-3, S5-7 |
08 |
20/12/91 |
| 20878 |
Cut Track to Res. S2 |
09 |
11/1/92 |
| 21057 |
Change Resistor R179 + Capacitor C46 |
10 |
6/3/92 |
| 21298 |
ECO 21336 Removes ECO 21298 |
11 |
19/6/92 |
| 21966 |
Update 121874SW to V 1.20.02 |
12 |
22/3/93 |
486SX-16
CPU Board
P/N 12229231
Rev D |
20956 |
Initial Release |
01 |
12/2/92 |
| 21016 |
|
" |
|
| 21047 |
Adjust Pin 17 on IC317 |
02 |
1/5/92 |
| 21214 |
Remove R326 |
03 |
22/5/92 |
486SX 25MHz
CPU Board
P/N 12214231
Rev D |
20288 |
Initial Release |
01 |
30/7/91 |
| 20151 |
Change Item 300 Oscillator |
02 |
27/5/91 |
| 20176 |
Change Res.,Cap.,ICs. |
03 |
19/6/91 |
| 20242 |
Change Res. + IC PAL |
04 |
25/6/91 |
| 21047 |
Adjust Pin 17 on IC317 |
05 |
1/5/92 |
486/485 CPU Card
P/N 14709331
Rev D |
13187 |
Initial Release |
01 |
12/4/91 |
| 13183 |
Various Changes |
02 |
1/5/91 |
| 20120 |
Release PALs/GALs |
03 |
27/5/91 |
| 20279 |
Various Changes |
04 |
4/7/91 |
| 20164 |
Release R/W Spec. 147792RW "C" |
05 |
30/5/91 |
| 20224 |
Release R/W Spec. 147792RW "E" |
06 |
29/7/91 |
| 20359 |
Release GALs |
07 |
5/8/91 |
| 21053 |
Add IC322 12215031 |
08 |
24/3/92 |
| 21424 |
Release GAL IC300 Marked HCKD300B |
09 |
28/8/92 |
486/485 CPU Board
P/N 14828631
Rev D |
20314 |
Initial Release |
01 |
29/7/91 |
| 20359 |
Release GALs |
02 |
5/8/91 |
| 21053 |
Add IC322 12215031 |
03 |
24/3/92 |
| 21282 |
Change IC302 to HKD1302C |
04 |
9/6/92 |
| 21424 |
Release GAL Marked HDK1300B |
05 |
28/8/92 |
486 25MHz
CPU Board
P/N 12214331
Rev D |
20288 |
Initial Release |
01 |
30/7/91 |
| 20151 |
Change Item 300 Oscillator |
02 |
27/5/91 |
| 20176 |
Change Res.,Cap.,ICs. |
03 |
19/6/91 |
| 20242 |
Change Res. + IC PAL |
04 |
25/6/91 |
| 21047 |
Adjust Pin 17 on IC317 |
05 |
1/5//92 |
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