Qi 600 Rev 'G' Motherboard Revision History

Information sourced from Mitsubishi Electric's Insight CD page (rev. 1.1.30).


Item Build
Ref
Reason For Change Rev. Date
386/25 Ethernet
P/N 12164931
REV G
12207 Release of Rev G BOM 01 5/7/89
6845 Release SDP Chip Software 02 16/8/89
6823 Step IC82385 13137730, 13137830 03 1/10/89
12334 Corrections to BOM 04 31/8/89
12390 Corrections to BOM 05 31/8/89
12448 Amend Comp Quantities 06 4/9/89
12457 RAMDAC Fix IC168-19 to 0V 07 4/9/89
12514 Lift Sockets for 486 12171730 132 Way 08 9/11/89
12528 Release 82C451B 09 29/11/89
12532 CMOS 50MHz osc 10 29/11/89
12560 Add 2 Resistors to Prevent Hanging 387/Weitek 11 25/2/90
12542 Change C's to 22pF for 80C607 osc 12 27/2/90
7150 Gold Plated SIMMs 12175631, 12175731 13 15/3/90
7170 Release NGGL185VE Ethernet Collision Fix 14 12/4/90
7217 (7211), Add 2R2 MCA Ethernet Card Fix 15 9/5/90
2936 Use Hex Inverter 12132121 - 14069 16 24/5/90
7218 MCA Wait State Fix GAL501 17 7/6/90
7228 Disqualify Brooktree for 12132921 18 22/5/90
7227 Use EQXO-105OU 19 6/6/90
3361 Disqualify TFC Crystal MCA Ethernet Card Fix 20 21/8/90
3601 Change SC49, C3, C9 to 47nF 21 14/12/90
3640
7492 Release New GAL Ethernet Collision Fix 22 17/12/90
7528 Changes to Front Panel Board 23 8/2/91
7559 Remove Ferrite Bead FE54 24 25/2/91
7632 Remove 502 Add 8392 @ IC149 25 26/4/91
7611 Uprev Security Chip 12120621 26 24/5/91
7691 "C" Step Chip Rework 27 10/5/91
15066 Change 47nF to 51nF Cap @ C3 28 30/5/91
20351 Security Software Update 29 29/7/91
22127 Update BIOS Software to V 1.02.23 30 25/5/93
22149 Update Keyboard Controller Software to V 1.02.25 " 25/5/93
22128 Update BIOS Software to V 1.02.21 " 25/5/93
386/25 No Ethernet
P/N 14407131
REV G
12308 Release of No Ethernet BOM 01 8/8/89
6845 Release SDP Chip Software 02 16/8/89
6823 Step IC82385 13137730, 13137830 03 1/10/89
12391 Delete BOM, Copy From 12164911 05 31/8/89
12448 Amend Comp Quantities 06 4/9/89
12457 RAMDAC Fix IC168-19 to 0V 07 4/9/89
12514 Lift Sockets for 486 12171730 132 Way 08 9/11/89
12528 Release 82C451B 09 29/11/89
12532 CMOS 50MHz osc 10 29/11/89
12560 Add 2 Resistors to Prevent Hanging 387/Weitek 11 25/2/90
12542 Change C's to 22pF for 80C607 osc 12 27/2/90
7150 Gold Plated SIMMs 12175631, 12175731 13 15/3/90
7217 (7211), Add 2R2 MCA Ethernet Card Fix 14 9/5/90
2936 Use Hex Inverter 12132121 - 14069 15 24/5/90
7218 MCA Wait State Fix GAL501 16 7/6/90
7228 Disqualify Brooktree for 12132921 17 22/5/90
7227 Use EQXO-105OU 18 6/6/90
3361 Disqualify TFC Crystal MCA Ethernet Card Fix 19 21/8/90
3601 Change SC49, C3, C9 to 47nF 20 14/12/90
3640
7492 Release New GAL Ethernet Collision Fix 21 17/12/90
7528 Changes to Front Panel Board 22 8/2/91
7559 Remove Ferrite Bead FE54 23 15/2/91
7611 Uprev Security Chip 12120621 24 24/5/91
20351 Security Software Update 25 29/7/91
386/25 4MB
No Ethernet
P/N 14667031
REV G
3601 Change SC49, C3, C9 to 47nF 20 14/12/90
3640
7492 Release New GAL Ethernet Collision Fix 21 17/12/90
7528 Changes to Front Panel Board 22 8/2/91
7559 Remove Ferrite Bead FE54 23 15/2/91
7611 Uprev Security Chip 12120621 24 24/5/91
15066 Change 47nF to 51nF Cap @ C3 25 30/5/91
20351 Security Software Update 26 29/7/91

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