PET48PN Motherboard Settings and Configuration

TMC RESEARCH CORPORATION

PET48PN

Processor
80486SX/80487SX/80486DX/ODP487SX/80486DX2
Processor Speed
20/25/33/40(internal)/50(internal)/50/66(internal)MHz
Chip Set
OPTI
Max. Onboard DRAM
128MB
SRAM Cache
64/128/256/512KB
BIOS
AMI
Dimensions
220mm x 240mm
I/O Options
32-bit VESA card slot (2)
NPU Options
None

CONNECTIONS
Purpose
Location
Purpose
Location
IDE interface LED
J4
Reset switch
J5 pins 9 and 19
Speaker
J5 pins 1-4
IDE interface LED
J5 pins 10 and 20
Turbo switch
J5 pins 7 and 17
32-bit VESA card (2)
S1 & S2
Turbo LED
J5 pins 8 and 18

USER CONFIGURABLE SETTINGS
Function
Jumper
Position
»
Monitor type select color
JP5
closed

Monitor type select monochrome
JP5
open
»
Channel ready select normal
JP7
open

Channel ready select EXRDY signal generated
JP7
closed

DRAM CONFIGURATION
Size
Bank 0
Bank 1
Bank 2
Bank 3
RNE1-RNE5
RNF1-RNF5
4MB
(4) 1M x 9
NONE
NONE
NONE
closed
open
4MB
NONE
NONE
(1) 1M x 36
NONE
open
closed
8MB
(4) 1M x 9
(4) 1M x 9
NONE
NONE
closed
open
8MB
NONE
NONE
(1) 1M x 36
(1) 1M x 36
open
closed
12MB
(4) 1M x 9
(4) 1M x 9
(1) 1M x 36
NONE
closed
open
12MB
(4) 1M x 9
NONE
(1) 1M x 36
(1) 1M x 36
open
closed
16MB
(4) 1M x 9
(4) 1M x 9
(1) 1M x 36
(1) 1M x 36
closed
open
16MB
(4) 4M x 9
NONE
NONE
NONE
closed
open
16MB
NONE
NONE
NONE
NONE
closed
open
20MB
(4) 4M x 9
(4) 1M x 9
(1) 4M x 36
NONE
open
closed
20MB
NONE
NONE
(1) 4M x 36
(1) 1M x 36
open
closed
24MB
(4) 4M x 9
(4) 1M x 9
(1) 1M x 36
NONE
closed
open
28MB
(4) 4M x 9
(4) 1M x 9
(1) 1M x 36
(1) 1M x 36
closed
open
32MB
(4) 4M x 9
(4) 4M x 9
NONE
NONE
closed
open
32MB
NONE
NONE
(1) 4M x 36
(1) 4M x 36
open
closed
36MB
(4) 4M x 9
(4) 4M x 9
(1) 1M x 36
NONE
closed
open
36MB
(4) 4M x 9
NONE
(1) 4M x 36
(1) 4M x 36
open
closed
40MB
(4) 4M x 9
(4) 4M x 9
(1) 1M x 36
(1) 1M x 36
closed
open
40MB
(4) 4M x 9
NONE
(1) 1M x 36
(1) 4M x 36
open
closed
48MB
(4) 4M x 9
(4) 4M x 9
(1) 4M x 36
NONE
closed
open
48MB
(4) 4M x 9
NONE
(1) 4M x 36
(1) 4M x 36
open
closed
52MB
(4) 4M x 9
(4) 1M x 9
(1) 4M x 36
(1) 4M x 36
closed
open
64MB
(4) 4M x 9
(4) 4M x 9
(1) 4M x 36
(1) 4M x 36
closed
open
128MB
(4) 16M x 9
(4) 16M x 9
NONE
NONE
closed
open

SRAM RESISTOR CONFIGURATION
Size
RNA1/RNA2
RNB1/RNB2
RNC1/RNC2
RND1/RND2
64KB
closed
open
open
open
128KB
open
closed
open
open
256KB
open
open
closed
open
512KB
open
open
open
closed

SRAM CONFIGURATION
Size
Cache SRAM
Location
TAG(U43)
TAG(U44 & U55)
64KB
(8) 8K x 8
Banks 0 & 1
(1) 8K x 8
(2) 16K x 1
128KB
(4) 32K x 8
Bank 0
(1) 8K x 8
(2) 16K x 1
256KB
(8) 32K x 8
Banks 0 & 1
(1) 32K x 8
(2) 16K x 1
512KB
(4) 128K x 8
Bank 0
(1) 32K x 8
(2) 64K x 1

CPU JUMPER CONFIGURATION
CPU
RNA3
RNB3
RNC3
80486DX2
closed
open
open
ODP486SX
open
closed
open
80486DX
closed
open
open
80487SX
open
closed
open
80486SX
open
open
closed

CPU SPEED JUMPER CONFIGURATION
CPU
JP2
JP3
JP4
JP8
JP9
W7
W8
W9
W10
20MHz
1 & 2
1 & 2
2 & 3
open
open
open
closed
open
open
25MHz
1 & 2
1 & 2
2 & 3
open
open
open
open
closed
open
33MHz
1 & 2
2 & 3
2 & 3
open
open
closed
open
open
open
40(internal)MHz
1 & 2
1 & 2
2 & 3
open
open
open
closed
open
open
50(internal)MHz
1 & 2
1 & 2
2 & 3
open
open
open
open
closed
open
50MHz
2 & 3
2 & 3
1 & 2
closed
closed
open
open
closed
open
66(internal)MHz
1 & 2
2 & 3
2 & 3
open
open
open
open
open
closed
Note:JP8 and JP9 are VESA bus speed select. W7 - W10 are clock source jumpers.

Headaches Begone! A Systemic Approach To Healing Your Headaches

Don't Let Your Bike Seat Ruin Your Sex Life Book

PET48PN Motherboard Settings and Configuration

Search

My Books

Discover

Processor	80486SX/80487SX/80486DX/ODP487SX/80486DX2
Processor Speed	20/25/33/40(internal)/50(internal)/50/66(internal)MHz
Chip Set	OPTI
Max. Onboard DRAM	128MB
SRAM Cache	64/128/256/512KB
BIOS	AMI
Dimensions	220mm x 240mm
I/O Options	32-bit VESA card slot (2)
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
IDE interface LED	J4	Reset switch	J5 pins 9 and 19
Speaker	J5 pins 1-4	IDE interface LED	J5 pins 10 and 20
Turbo switch	J5 pins 7 and 17	32-bit VESA card (2)	S1 & S2
Turbo LED	J5 pins 8 and 18

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Monitor type select color	JP5	closed
	Monitor type select monochrome	JP5	open
»	Channel ready select normal	JP7	open
	Channel ready select EXRDY signal generated	JP7	closed

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3	RNE1-RNE5	RNF1-RNF5
4MB	(4) 1M x 9	NONE	NONE	NONE	closed	open
4MB	NONE	NONE	(1) 1M x 36	NONE	open	closed
8MB	(4) 1M x 9	(4) 1M x 9	NONE	NONE	closed	open
8MB	NONE	NONE	(1) 1M x 36	(1) 1M x 36	open	closed
12MB	(4) 1M x 9	(4) 1M x 9	(1) 1M x 36	NONE	closed	open
12MB	(4) 1M x 9	NONE	(1) 1M x 36	(1) 1M x 36	open	closed
16MB	(4) 1M x 9	(4) 1M x 9	(1) 1M x 36	(1) 1M x 36	closed	open
16MB	(4) 4M x 9	NONE	NONE	NONE	closed	open
16MB	NONE	NONE	NONE	NONE	closed	open
20MB	(4) 4M x 9	(4) 1M x 9	(1) 4M x 36	NONE	open	closed
20MB	NONE	NONE	(1) 4M x 36	(1) 1M x 36	open	closed
24MB	(4) 4M x 9	(4) 1M x 9	(1) 1M x 36	NONE	closed	open
28MB	(4) 4M x 9	(4) 1M x 9	(1) 1M x 36	(1) 1M x 36	closed	open
32MB	(4) 4M x 9	(4) 4M x 9	NONE	NONE	closed	open
32MB	NONE	NONE	(1) 4M x 36	(1) 4M x 36	open	closed
36MB	(4) 4M x 9	(4) 4M x 9	(1) 1M x 36	NONE	closed	open
36MB	(4) 4M x 9	NONE	(1) 4M x 36	(1) 4M x 36	open	closed
40MB	(4) 4M x 9	(4) 4M x 9	(1) 1M x 36	(1) 1M x 36	closed	open
40MB	(4) 4M x 9	NONE	(1) 1M x 36	(1) 4M x 36	open	closed
48MB	(4) 4M x 9	(4) 4M x 9	(1) 4M x 36	NONE	closed	open
48MB	(4) 4M x 9	NONE	(1) 4M x 36	(1) 4M x 36	open	closed
52MB	(4) 4M x 9	(4) 1M x 9	(1) 4M x 36	(1) 4M x 36	closed	open
64MB	(4) 4M x 9	(4) 4M x 9	(1) 4M x 36	(1) 4M x 36	closed	open
128MB	(4) 16M x 9	(4) 16M x 9	NONE	NONE	closed	open

SRAM RESISTOR CONFIGURATION
Size	RNA1/RNA2	RNB1/RNB2	RNC1/RNC2	RND1/RND2
64KB	closed	open	open	open
128KB	open	closed	open	open
256KB	open	open	closed	open
512KB	open	open	open	closed

SRAM CONFIGURATION
Size	Cache SRAM	Location	TAG(U43)	TAG(U44 & U55)
64KB	(8) 8K x 8	Banks 0 & 1	(1) 8K x 8	(2) 16K x 1
128KB	(4) 32K x 8	Bank 0	(1) 8K x 8	(2) 16K x 1
256KB	(8) 32K x 8	Banks 0 & 1	(1) 32K x 8	(2) 16K x 1
512KB	(4) 128K x 8	Bank 0	(1) 32K x 8	(2) 64K x 1

CPU JUMPER CONFIGURATION
CPU	RNA3	RNB3	RNC3
80486DX2	closed	open	open
ODP486SX	open	closed	open
80486DX	closed	open	open
80487SX	open	closed	open
80486SX	open	open	closed

CPU SPEED JUMPER CONFIGURATION
CPU	JP2	JP3	JP4	JP8	JP9	W7	W8	W9	W10
20MHz	1 & 2	1 & 2	2 & 3	open	open	open	closed	open	open
25MHz	1 & 2	1 & 2	2 & 3	open	open	open	open	closed	open
33MHz	1 & 2	2 & 3	2 & 3	open	open	closed	open	open	open
40(internal)MHz	1 & 2	1 & 2	2 & 3	open	open	open	closed	open	open
50(internal)MHz	1 & 2	1 & 2	2 & 3	open	open	open	open	closed	open
50MHz	2 & 3	2 & 3	1 & 2	closed	closed	open	open	closed	open
66(internal)MHz	1 & 2	2 & 3	2 & 3	open	open	open	open	open	closed
Note:JP8 and JP9 are VESA bus speed select. W7 - W10 are clock source jumpers.