PRODUCTS -
PRODUCTS - MAINBOARDS - 5BTX
- Intel TX Chipset.
- AT Format.
Special Featues
- CPU Voltage & Speed Auto-Detection.
- ACPI (Advanced Configuration and Power Interface).
- PC 97 Platform.
- Replaceable Lithium Battery.
CPU
- Supports Intel MMX Microprocessor P55C upto 233MHz.
- Supports Intel Pentium Microprocessor P54C/CT/CS/CQS 90MHz to 233MHz.
- Supports Cyrix/IBM 6x86 Microprocessors (M1/M2) , P-133+, P-150+ and P-166+
- Supports AMD-K5 Microprocessors PR-90 to PR-200.
- Supports AMD-K6 Microprocessors PR2-166 to PR2-233.
- Provides 321-pin ZIF socket. (Socket 7).
Speed
- Supports CPU bus clock from 50MHz to 66MHz.
- Supports 25/27.5/30/33 MHz PCI Bus speed.
- I/O clock 8MHz for ISA Bus.
DRAM Memory
- Supports 2 168-pin DIMM module.
- Supports 2 banks (4 pcs) 72-pin 4MB/ 8MB/ 16MB/ 32MB SIMM module sockets.
- Supports DRAM memory 8MB to 128MB on board.
- Supports EDO and FP Mode DRAM.
- Supports Symmetrical and Asymmetrical DRAM.
Cache Memory
- Supports Pipelined Burst SRAM upto 512KB.
Bus Slots
- Provides three 16-bit ISA Bus slots and four 32-bit PCI Bus slots.
PCI Enhanced IDE Built-in On Board
- Supports 4 IDE hard disk drives.
- Supports mode 4, Bus Master Mode, high performance hard disk drives.
- Supports IDE interface with CD-ROM.
- Supports high capacity hard disk drives.
- Supports LBA mode.
ISA I/O Built-in On Board
- Supports one multi-mode parallel port.
1. Standard & Bi-directional Parallel Port (SPP).
2. Enhanced Parallel Port (EPP).
3. Extended Capabilities Port (ECP).
- Supports two serial ports, 16550UART, with 16 Byte FIFO.
- Supports 360KB, 720KB, 1.2MB, 1.44MB and 2.88MB floppy disk drives.
- Supports PS/2 MOUSE.
Universal Serial Bus (USB)
- Supports two Universal Serial Bus (USB) ports.
Dimension
- 22cm x 22cm (W x L)
BIOS
- AWARD legal friendly BIOS.
- Flash Memory.
- Supports PnP functions.
Operating Systems
- MS-DOS, OS/2, Windows 3.1, Windows 95, Windows NT, Novell.

ttdmbdiag.jpg (63636 bytes)

JP3: CMOS Function Selecton
JP3 Assignment
1-2 closed Normal Operation
2-3 closed Clear CMOS Data
1-3 open Onboard Battery Disabled
JP7, JP8: CPU Voltage Selection
CPU TYPE JP7 JP8 CPU Voltage
CORE I/O
Single Voltage
INTEL
P54C/CQS/CT
Cyrix
6x86
AMD
K5		 1-2 open
3-4 open
5-6 closed		 1-2 closed
3-4 closed
5-6 closed		 3.5V 3.5V
Dual Voltage
INTEL
P55C/MMX
Cyrix
6x86L / 6x86MX
AMD
K6		 1-2 open
3-4 open
5-6 open		 1-2 open
3-4 open
5-6 open		 2.8V 3.4V
1-2 closed
3-4 open
5-6 open		 1-2 open
3-4 open
5-6 open		 2.9V 3.4V
1-2 open
3-4 closed
5-6 open		 1-2 open
3-4 open
5-6 open		 3.2 3.4V
JP11, JP9: CPU Clock Selection
(a) INTEL CPU
CPU Speed Bus Clock &
Multiplier		 JP11 (1-2) JP11 (3-4) JP11 (5-6) JP9 (1-2) JP9 (3-4)
90MHz 60MHz x 1.5 open closed closed open open
100MHz 66MHz x 1.5 closed open closed open open
120MHz 60MHz x 2 open closed closed closed open
133MHz 66MHz x 2 closed open closed closed open
150MHz 60MHz x 2.5 open closed closed closed closed
166MHz 66MHz x 2.5 closed open closed closed closed
200MHz 66Hz x 3 closed open closed open closed
233MHz 66MHz x 3.5 closed open closed open open
* JP11 (1-2) open & JP11 (3-4) open & JP11 (5-6) closed: Bus Clock = 60MHz
* JP11 (1-2) closed & JP11 (3-4) open & JP11 (5-6) closed: Bus Clock = 66MHz
* JP9 (1-2) open & JP9 (3-4) open: Multiplier = 1.5
* JP9 (1-2) closed & JP9 (3-4) open: Multipler = 2
* JP9 (1-2) closed & JP9 (3-4) closed: Multipler = 2.5
* JP9 (1-2) open & JP9 (3-4) closed: Multipler = 3
* JP9 (1-2) open & JP9 (3-4) open: Multipler = 3.5
(b) Cyrix 6x86 / 6x86L CPU
CPU Sped Bus Clock &
Multiplier		 JP11 (1-2) JP11 (3-4) JP11 (5-6) JP9 (1-2) JP9 (3-4)
PR-133+
110MHz		 55MHz x 2 closed closed open closed open
PR-150+
120MHz		 60MHzz x 2 open closed closed closed open
PR-166+
133MHz		 66MHz x 2 closed open closed closed open
PR-200+
150MHz		 75MHz x 2 open closed open closed open
* JP11 (1-2) closed & JP11 (3-4) closed & JP11 (5-6) open: Bus Clock = 55MHz
* JP11 (1-2) open & JP11 (3-4) closed & JP11 (5-6) closed: Bus Clock = 60MHz
* JP11 (1-2) closed & JP11 (3-4) open & JP11 (5-6) closed: Bus Clock = 66MHz
* JP9 (1-2) closed & JP9 (3-4) open: Multiplier = 2
(c) AMD-K5 CPU
CPU Speed JP11 (1-2) JP11 (3-4) JP11 (5-6) JP9 (1-2) JP9 (3-4)
PR-90 open closed closed open open
PR-100 closed open closed open open
PR-120 open closed closed closed open
PR-133 closed open closed closed open
PR-166 closed open closed closed closed
PR-200 closed open closed open closed
(d) AMM-K6 CPU
CPU Speed JP11 (1-2) JP11 (3-4) JP11 (5-6) JP9 (1-2) JP9 (3-4)
PR2-166 closed open closed closed closed
PR2-200 closed open closed open closed
PR2-233 closed open closed open open
Connectors
Pin
No.		 Assignment Functon
1 Speaker Speaker
Connector
2 NC
3 Ground
4 +5V
5 Power LED (+) Power LED
&
Keylock
6 No Connection
7 Ground
8 Key lock
9 Ground
10 Power Switch ATX Power
Button
11 Standby Voltage
12 Reset Control Reset
13 ground
Pin.
No.		 Assignment Function
14 +5V VCC
Ground
15 Ground
16 No Connecton NC
17 Green Control Green Switch
18 Ground
19 No Connection NC
20 HDD LED (-) HDD
LED
21 HDD LED (+)
22 +5V IrDA
Connector
23 No Connectioon
24 IRRX
25 Ground
26 IRTX
J2 PS/2 Mouse Cable Connector
Pin No. Assignment
1 Mouse Data
2 No Connection
3 Ground
4 +5V
5 Mouse Clock
J13 U.S.B Connector
Pin No. Assignment Pin No. Assignment
A1 +5V B5 No Connection
A2 Port 1 Negative Data B4 Groun
A3 Port 1 Positive Data B3 Port 2 Positive Data
A4 Ground B2 Port 2 Negative
A5 No Connection B1 +5V
DRAM Installation
(a) SIMM
DRAM AcessTime: fast page mode 70ns, EDO mode 60ns.
DRAM Type: 4MB/8MB/16MB/32MB SIMM Module (72pin)
Total
Memory Size (MB)		 Bank 0 Bank 1
SIMM1-SIMM2 SIMM3-SIMM4
8M 4M x 2 pcs ----
16M 8M x 2 pcs ----
32M 16M x 2 pcs ----
64M 32M x 2 pcs ----
16M 4M x 2 pcs 4M x 2 pcs
24M 8M x 2 pcs 4M x 2 pcs
40M 16M x 2 pcs 4M x 2 pcs
72M 32M x 2 pcs 4M x 2 pcs
24M 4M x 2 pcs 8M x 2 pcs
32M 8M x 2 pcs 8M x 2 pcs
48M 16M x 2 pcs 8M x 2 pcs
80M 32M x 2 pcs 8M x 2 pcs
40M 4M x 2 pcs 16M x 2 pcs
48M 8M x 2 pcs 16M x 2 pcs
64M 16M x 2 pcs 16M x 2 pcs
96M 32M x 2 pcs 16M x 2 pcs
72M 4M x 2 pcs 32M x 2 pcs
80M 8M x 2 pcs 32M x 2 pcs
96M 16M x 2 pcs 32M x 2 pcs
128M 32M x 2 pcs 32M x 2 pcs
* SIM1-SIM2 (Bank1) & DIMM2 (Bank1) cannot install simultaneously
(b) DIMM
DRAM Access Time: 3.3V Unbuffered SDRAM 15ns required.
DRAM Type: 8MB/16MB/32MB/64MB DIMM Module (168pin)
Total
Memory Size (MB)		 Bank 0 Bank 1
DIMM 1 DIMM 2
8 8M x 1 pc ----
16 16M x 1 pc ----
32 32M x 1 pc ----
64 64M x 1 pc ----
16 8M x 1 pc 8M x 1 pc
24 16M x 1 pc 8M x 1 pc
40 32M x 1 pc 8M x 1 pc
72 64M x 1 pc 8M x 1 pc
24 8M x 1 pc 16M x 1 pc
32 16M x 1 pc 16M x 1 pc
48 32M x 1 pc 16M x 1 pc
80 64M x 1 pc 16M x 1 pc
40 8M x 1 pc 32M x 1 pc
48 16M x 1 pc 32M x 1 pc
64 32M x 1 pc 32M x 1 pc
96 64M x 1 pc 32M x 1 pc
72 8M x 1 pc 64M x 1 pc
80 16M x 1 pc 64M x 1 pc
96 32M x 1 pc 64M x 1 pc
128 64M x 1 pc 64M x 1 pc
* Each Bank can be installed and worked individually, the main board provides optimal performance and free choices depending on your needs.
* Dual In-line Memory Module DIMM2 DRAM size configurationis the same as SIMM Bank1.
* SDRAM mixed with FP or EDO is not recommended.