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rf7080a.exe Model 70 386 Reference Disk v1.12 (zipped image)
XGAOPT.exe XGA/XGA2 Display Adapter Options Disk
(details HERE)
8570 Type 2 (short) Planar
System Firmware
ROM Images
8570 Type 2 (short) Planar FRU P/N 96F7308 or 41G3985
F1 Keyboard/mouse fuse
J1 Power supply edge connector
J2 Keyboard port
J3 Mouse port
J4 Parallel port
J5 Floppy/Hard-drive riser slot
J6 DB25 serial port
J7,9,10 72-pin SIMM socket
J8 HDD15 video connector
J11,12 32-bit MCA slot
J13 16-bit MCA slot w/ AVE
J14 Battery/Speaker connector
LN1-5 Inductors
OS1 40.0000 MHz osc
OS2 24.0000 MHz osc
OS3 14.3181 MHz osc
OS4 25.1750 MHz osc
OS5 28.3220 MHz osc
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U2 33F8602 FDC
U10 33F4906 BIOS
U18 NEC µPD72065L Floppy controller
U19 33F5838 I/O Controller
U20 132-pin 386 socket
U21 NEC 33F5946 CPU GA
U23 90X8134(ESD) DMA Controller
U37 NS16550AFV UART
U39 57X4111
U42 68-pin 387DX socket
U45 NEC 33F5944 Memory Controller
U59,60 68X6143 Video RAM
U61 90X8941 VGA controller
U68 Inmos IMSG171S-35 RAMDAC
U79 Hitachi HM6264LFP-15T
U81 Motorola MC146818AFN RTC/CMOS
Y1 32.768 kHz xtal (RTC)
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This planar uses the same core logic as the
Later P70 planar, the
5550-S/T Stage 2 planar, and the
Type 0 processor complex.
System Firmware (POST & BIOS)
Firmware stored in EPROM.
ROM Images
All ROMs are Toshiba TC571001D-20, AMD Am27C100 or compatible (position U10).
33F4906 - 12 May 1988, rev. 3, incomplete dump!
64F3513 - 15 Dec 1989, rev. 4
Note: The Type 2 planar uses a slightly
non-standard ROM device - Toshiba TC571001D or AMD Am27C100. These devices are
similar to the more common 27C010 line, but two pins are swapped (pin 2 and pin
24). Some of the programming parameters may differ as well.
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