8570 Type 1 Planar

386 16 MHz or 20 MHz

rf7080a.exe Model 70 386 Reference Disk v1.12 (zipped image)
XGAOPT.exe XGA/XGA2 Display Adapter Options Disk (details HERE)

8570 Type 1 Planar
System Firmware
   ROM Images

8570 Type 1 Planar FRU P/N 96F7309 or 41G3984

P/N 15F8379 (16 MHz, -F61) [P] [P]
P/N 33F6083 (20 MHz, -121) [P]

CR1 LM340T 7805 5V reg. (incl. SCP)
J1 16-bit MCA slot w/ AVE
J2, J3 32-bit MCA slot
J9 HDD15 video connector
J10 DB25 serial port
J11 Parallel port
J12 Mouse port
J13 Keyboard port
J19 Battery/Speaker connector
J30-32 72-pin SIMM socket
J34 Floppy/Hard-drive riser slot
J36 Power supply edge connector
LN1-4 inductors
U2 Inmos IMSG171P-35 RAMDAC
U12 NS16550AV UART
U13 N8042AH Keyboard controller
U14,34 Video RAM
U15 15F6864 VGA controller
U17 28.3220 MHz osc
U18 25.1750 MHz osc
U31 1.84320 MHz osc
U35,36 N8259A-2 PIC (cascade)
U85 14.3181 MHz osc
U88 72X8299
U89 NEC µPD72065L Floppy controller
U128 90X8134(ESD) DMA Controller
U143 i80386DX-16 or -20
U145 NEC µPD446G-20L 2Kx8 SRAM
U148 i80387DX
U150 Motorola MC146818A RTC/CMOS
U159 32.0000 or 40.0000 MHz osc
U164 32.0000 MHz osc
U169 15F8303 BIOS ROM Odd
U170 15F8302 BIOS ROM Even
Y1 32.768 kHz xtal (RTC)

U150 Motorola MC146818A RTC/CMOS - The only RAM this chip has on it is the 64 bytes of CMOS memory. The other MCA configuration information is in the U145 NEC D446G-20L chip (U79 Hitachi HM6264LFP-15T on the Type 2 planar). (thx David)

System Firmware (POST & BIOS)

Firmware stored in EPROM.

ROM Images

15F8302 / 15F8303 - 11 Apr 1988, rev. 2 / 0*, 2x D27512-2 (U170 / U169)
   * reports rev. 2 for Model 70, rev. 0 for Model 80

Content created and/or collected by:
Louis F. Ohland, Peter H. Wendt, David L. Beem, William R. Walsh, Tatsuo Sunagawa, Tomáš Slavotínek, Jim Shorney, Tim N. Clarke, Kevin Bowling, and many others.

Ardent Tool of Capitalism is maintained by Tomáš Slavotínek.
Last update: 08 May 2024 - Changelog | About | Legal & Contact