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Advent 4-100 PC


CPUIntel DX4 100 in a socket 3 ZIF socket
MotherboardUA 4982
BIOSPhoenix Bios Version 4.04 Dated 10/03/95
Memory4MB RAM expandable to 64MB using 4 x 72 pin SIMMS of 1,4,8 or 16MB capacity
Cache8kb internal cache 0Kb external, upgrade options to 128/256/512Kb
Hard Drive170MB
CD DriveVertos 300HPD
Video CardS3 805 VLB - 512KB
Sound CardNot Fitted
Keyboard102 Key, 5 pin DIN socket
Mouse3 Button 9 pin connector on COM1
Interfaces1x 9 Pin Serial RS232C set as COM1 on IRQ4
1x 25 Pin Serial RS232C set as COM2 on IRQ3
1x Centronics Parallel Port LPT1 on IRQ7
1x PS/2 Keyboard Port
1x Video connector
Expansion5 ISA 16 and 3 VLB Slots.

Motherboard Information

Cache

OptionTag RAM
U22		Cache Bank 0
U12,U13,U14,U15
128K32x832x8
256K32x864x8
512K32x8128x8

CacheJP4JP5JP6JP10JP11JP12JP13
128K
(32Kx8)		Short
1-2		Short
1-2		OpenOpenOpenOpenOpen
256K
(64Kx8)		Short
1-2		Short
1-2		Short
1-2		OpenOpenOpenOpen
512K
(128Kx8)		Short
1-2		Short
2-3		Short
2-3		Short
1-2		ShortOpenShort

CPU

The motherboard has a type 3 ZIF socket, and supports only SX, DX and DX2 Processors. Pentium processors to P24D standard only are supported.

CPU TypeJP14JP15JP16JP17JP18JP19JP400
Intel 80486SX/SX2OpenShort
2-3		OpenOpenShort
2-3		OpenOpen
Intel 80486DX/DX2
AMD Am486DX/DX2/DX4**		OpenShort
1-2
3-4		Short
1-2		OpenShort
2-3		OpenOpen
*
Intel 80486SX/SX2
(SL Enhance)		Short
1-2
3-4		Short
2-3		OpenShort
5-6		Short
1-2		Short
1-2		Open
Intel 80486DX/DX2Short
1-2
3-4		Short
1-2
3-4		Short
1-2		Short
5-6		Short
1-2		Short
1-2		Open
Intel 80486DX2
(P24D)
(L1 W/B)		Short
1-2
3-4		Short
1-2
3-4		Short
1-2		Short
3-4
5-6		Short
1-2
4-5		Short
1-2
4-5		Open
Intel 80486DX4**Short
1-2
3-4		Short
1-2
3-4		Short
1-2		Short
5-6		Short
1-2		Short
1-2		Open
UMC Green
CPU U5S-Super		OpenShort
2-3		Short
3-4		Short
1-2		Short
2-3		Short
2-3		Open
Cyrix
CX486DX/DX2 (M7)		Short
2-3		Short
1-2
3-4		Short
1-2		Short
2-3
4-5		Short
1-2
3-4
5-6		Short
1-2
3-4
5-6		Open
Cyrix
CX486S (M6)		Short
2-3
4-5		Short
2-3		OpenShort
2-3
4-5		Short
1-2
3-4
5-6		Short
1-2
3-4
5-6		Open

* JP400 shorts for Am486DX2-80 or Am486DX4-100 internal CLK 2X, JP400 opens for Am486DX4-100 internal CLK 3X

* NOTE: JP100, 101, 102, 300 short for Cyrix DX2-50, if you use other CPU, the JP100, 101, 102, 300 are open.

** Some mother boards support 3.3V (you'll need to contact Advent directly to find out which ones). If the board does support 3.3v then DX4 processors are supported.

Clock Select

ClockJP7JP8JP9
25 MHzShortOpenOpen
33 MHzShortShortShort
40 MHzShortShortOpen
50 MHzOpenOpenShort

Jumpers

JP1 - Flash ROM. If programming a +5v flash ROM then short 1-2. If programming a +12v flash ROM then short 2-3.
JP3 - Keyboard Selection. External = Open, Internal = Short.
JP24 - Intel 80486 DX4 Internal Clock. 3X = Open, 2X = Short 2-3
JP400 - AMD Am486DX4 Internal Clock. 3X = Open, 2X = Short


In the Box

Disks Supplied

  • Microsoft Dos Ver 6.22 (3 disks)
  • Microsoft Dos Ver 6.22 Supplemental Disk (HD)
  • Microsoft Windows Ver 3.11 Disk 1 (8 disks)
  • S3 Utility Driver (HD)
  • QD 6580 Utility Programs (HD) (IDE Card Driver)
  • Mouse Driver - Test Program (DD)
  • ECS IDE Device Driver ver 1.60 and ECS Audio
  • Utility ver 2.10 (DD)
  • Pointing Device Driver and PopUp menus

Items Supplied

  • Advent DX4 100 Base unit
  • ADI Provista 14" Colour Monitor
  • Mouse
  • Keyboard
  • Set of Keys
  • Power cables

Documentation Supplied

  • QD6580W/787/777 VL IDE Card
  • VGA S3 805 User's Manual
  • UA 4982 Motherboard Manual
  • Advent 4250 Personal Computer
  • MS-DOS & Microsoft Windows for Workgroups Guide
  • Vertos CD ROM drive User's Manual
  • ADI Provista Colour Display Monitor Quick Reference Guide

Known Issues

Cannot Access Floppy Drive

In the BIOS there is a section labelled SECURITY. In this there is a section called DISKETTE ACCESS. This is set to SUPERVISOR.

This disables the floppy drive. Change this to USER and the floppy drive should work successfully.