Appendix A, Video Boards

Document Number: 107315-027, Volume 2
Publication Date: July 1996

**Video Display Controller Boards (000031, 000160, and 000345)**
J3	J5	Function
2-3	2-3	Enable RGBI and composite video (high-scan) (Desktop default)
1-2	1-2	Disable RGBI and composite video (high-scan) (Portable default)

**Video Display Controller Board (000525)**
J3/5	Function
2-3	Enable RGBI and composite video (high-scan) (Desktops default)
1-2	Disable RGBI and composite video (high-scan) (Portables default)

**Compaq Enhanced Color Graphics Board (000410 and 000471)**
**SW1 Settings (As the Only/Primary Video Display Controller Board)**
1	2	3	4	Monitor Type	Power-On Mode	Mode
OFF	ON	ON	OFF	Compaq Color Compatible Enh Color Compaq Dual-Mode	80 x 25 (640 x 350)	Color
ON	ON	ON	OFF	Compaq Color Compatible Enh Color Compaq Dual-Mode	80 x 25 (640 x 200)	Color
OFF	OFF	OFF	ON	RGBI Color Compaq Dual-Mode	80 x 25 (640 x 200)	Color
ON	OFF	OFF	ON	RGBI Color Compaq Dual-Mode	40 x 25 (320 x 200)	Color
OFF	OFF	ON	OFF	Compaq Dual-Mode	80 x 25 (720 x 350)	Mono

**SW1 Settings (As the Secondary Video Display Controller Board)**
1	2	3	4	Monitor Type	Power-On Mode	Mode
OFF	OFF	ON	ON	Compaq Color Compatible Enh Color Compaq Dual-Mode	80 x 25 (640 x 350)	Color
ON	OFF	ON	ON	Compaq Color Compatible Enh Color Compaq Dual-Mode	80 x 25 (640 x 200)	Color
OFF	ON	ON	ON	RGBI Color Compaq Dual-Mode	80 x 25 (640 x 200)	Color
ON	ON	ON	ON	RGBI Color Compaq Dual-Mode	40 x 25 (320 x 200)	Color
OFF	ON	OFF	ON	Compaq Dual-Mode	80 x 25 (720 x 350)	Mono

**SW2 Settings**
1	2	3	4	5	6	Monitor Type
OFF	OFF					Compaq Color, Compatible Enhanced Color (external)
ON	OFF					RGBI Color (external)
OFF	ON					Compaq Dual-Mode (external)
ON	ON					No external (Portables)
		OFF				Compaq Dual-Mode internal (Compaq Portable, Plus, Portable 286, Portable II)
		ON				No internal (Portable III , Portable 386 , Desktops)
			ON	OFF	ON	Reserved

*Set system board setting to monochrome mode.

**SW3 Settings (000410 only)**
If installed, all OFF (Reserved)

**Jumper P1 (External Monitor)**
Pins	Monitor Type
1 - 2	Compaq Color or Enhanced Color
2 - 3	RGBI Color or Compaq Dual Mode

**Jumper JP3**
Pins	Address Select
1 - 2	3xxh (default)
2 - 3	2xxh

**Minimum System ROM Required for CECGB**
Product	Minimum ROM
Compaq Portable II	F
Compaq Portable III	K
Compaq Portable 386	H
Compaq Deskpro 386	E
Compaq Deskpro 386/20	H

**CECGB Video ROM Revision (Spare Part Number 106686-001)**
ROM	Number on ROM
B	108281-001
C	106633-001
D	106633-002
E	106633-003

**Compaq Plasma Display Controller Board (000932)**
Jumper	Function	Setting
E1	Reserved	Not installed
E2	Reserved	Installed

**Video Graphics Controller Board (000806, 001241, and 109360)**
Jumper	Function	Setting
J1 or W1 *	Video RAM	1-2, 16-bit 2-3, 8-bit
J2 or W2 *	Video ROM	2-3, 8-bit 1-2, 16-bit

* Default.

**Minimum System ROM Required for VGA**
Product	Minimum ROM
Compaq Portable III	K
Compaq Portable 386	H
Compaq Deskpro 386	E
Compaq Deskpro 386/20	H
Compaq Deskpro 386/25	K.2

**VGC ROM Locations**
000806 Board	001241 and 109360 Boards
U14 EVEN	U11 EVEN
U23 ODD	U12 ODD

**VGC ROM Revision (Spare Part Number 109315-001)**
Revision	Number on ODD ROM	Number on EVEN ROM
A.0	109327-001	109328-001
A.1	109327-002	109328-002
A.2	109327-003	109328-003
B.0	109793-001	109794-001
B.1	109793-002	109794-002
D.0	109793-003	109794-003

**Advanced Graphics 1024 Board (109958)**
Jumper W1 Setting	Function
2 - 3 *	Select address space 290h - 29Fh
1 - 2	Select address space 280h - 28Fh

* Default.

**QVision 1024/E (001924, 002664, 002930) and QVision 1280/E (002727) Controllers**
SW1 Settings
1	2	Function
ON		Power-up as Secondary Adapter
OFF *		Power-up as Primary Adapter
	ON	Test
	OFF *	Normal

*Default.

QVision 1024/I (002163 and 002948) and QVision 1280/I (002951)Controllers
SW1 Settings
1	2	3	4	5	6	7	8	Function
OFF*								V3 (Virtual ID bit 3)
	OFF*							V2 (Virtual ID bit 2)
		OFF*						V1 (Virtual ID bit 1)
			OFF*					V0 (Virtual ID bit 0)
				OFF* ON				RAM interface 16 bits RAM interface 8 bits
					OFF ON*			ROM interface 16 bits ROM interface 8 bits
						OFF* ON		32 K ROM 24 K ROM
							ON	Test
							OFF*	Normal

* Default.

© Copyright 1994, 1995, 1996 Compaq Computer Corporation.
Revised: 13 September 1996