IRQ Usage

  • Allows user to individually set IRQs for each Legacy ISA card

  • Allows user to reserve IRQ/DMA Channels if necessary

  • Auto-detects PnP Cards after HDD Detection


BIOS Settings

Here are my Recommended BIOS Settings for those of you who have been having problems with the TXP4-X and higher bus speeds, I'm not sure why though since it was very stable when I tested it. Below are my recommended settings for bus speeds < 66MHz, and 75MHz. If you are using Non-EDO RAM, then use the settings the in the 2nd (Non - EDO) column, if you are using SDRAM/EDO RAM with a 50/60/66MHz bus speed use the 3rd (66MHz Setting) column. The next column should be used if you are using the 75MHz bus speed and EDO/SDRAM. Finally, if you are looking for the safest and most stable setting, use the last column. There are more Chipset Features Setup options than those I have listed here, but they pertain to HDD settings as well as Serial/Parallel Ports and have nothing to do with memory timings so I left them out intentionally.

ASUS TXP4-X Chipset Features Setup
Item Non - EDO 66MHz Setting 75/83MHz Setting Safe Setting
Auto Configuration: Disabled Disabled Disabled Disabled
DRAM Read Burst Timing: x333 x222 x222 x333
DRAM Write Burst Timing: x333 x333 x333 x444
DRAM R/W Leadoff Timing: 10T/6T 10T/6T 11T/7T 10T/6T
DRAM RAS# Precharge Time: 4T 3T 4T 4T
Refresh RAS# Assertion: 4T 4T 5T 5T
Fast EDO Lead Off: Disabled Enabled Disabled Disabled
Speculative Leadoff: Enabled Enabled Enabled Disabled
SDRAM RAS# Timing: 3T/5T/8T 3T/5T/8T 3T/5T/8T 3T/5T/8T
SDRAM CAS# Latency: 3T 2T 3T 3T
SDRAM Speculative Read: Disabled Enabled Disabled Disabled
Passive Release: Disabled Disabled Disabled Disabled
Delayed Transaction: Disabled Disabled Disabled Disabled
16-bit I/O Recovery Time: 1 BUSCLK 1 BUSCLK 1 BUSCLK 4 BUSCLK
8-bit I/O Recovery Time: 1 BUSCLK 1 BUSCLK 1 BUSCLK 8 BUSCLK
Video BIOS Cacheable: Enabled Enabled Enabled Disabled
Memory Hole At Address: None None None None


Recommended SDRAM

This little addition to my review layout was put in here just so you all can have an idea of what brand of SDRAM I recommend and have tested with the board, just to avoid problems in the future if you decide to purchase the board.

Recommended SDRAM: Advanced Megatrends SDRAM; Corsair SDRAM; SmarTech SDRAM
SDRAM Tested: 2 x 32MB Advanced Megatrends SDRAM DIMMs; 2 x 32MB SmarTech SDRAM DIMMs; 2 x 32MB Corsair SDRAM DIMMs

Manufacturer: Advanced Megatrends
Purchase Web-Site:

Manufacturer: Corsair Microsystems
Purchase Web-Site:


The Test

In recent times, choosing a motherboard cannot be completely determined by a Winstone score. Now, many boards come within one Winstone point of each other and therefore the need to benchmark boards against each other falls. Therefore you shouldn't base your decision entirely on the benchmarks you see here, but also on the technical features and advantages of this particular board, seeing as that will probably make the greatest difference in your overall experience.

Test Configuration

Processor(s): AMD K6-233 ANR & Intel Pentium MMX - 233 & Cyrix 6x86MX PR2/200
RAM: 2 - 32MB Advanced Megatrends, Corsair, SmarTech SDRAM DIMMs
Hard Drive(s): Western Digital Caviar AC21600H
Video Card: Matrox Millennium (2MB WRAM)
Busmaster EIDE Drivers: Intel 3.01
Video Card Drivers: MGA Millennium
OS: Windows 95 Service Release 2
System Cooling: 1" Heatsink/Fan Combo
2 Case Fans
Generic OEM Mid Tower Case


Windows 95 Performance of the ASUS TXP4-X

CPU Business Winstone 97
AMD K6-200 53.2
AMD K6-208 56.5
AMD K6-225 57.0
AMD K6-233 57.0
Cyrix 6x86MX-PR2/166 (150/75) 53.0
Cyrix 6x86MX-PR2/200 (166/66) 55.6
Intel Pentium MMX - 200 51.0
Intel Pentium MMX - 208 55.0
Intel Pentium MMX - 225 54.6
Intel Pentium MMX - 233 53.5
Intel Pentium MMX - 262.5 57.0
Intel Pentium MMX - 290.5 57.8

It isn't the world's best performer, and sometimes it can give you a few problems when overclocking, however the TXP4-X offers performance that is true to the ASUS name =)


The Final Decision

This one is your call, if you just want a TX board, without any really special features, just an average TX board based on the ATX form factor which offers great performance and the backing of a great company...then the TXP4-X is for you, otherwise, I would consider the TX97 series instead


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