BIOS Settings

Here are my Recommended BIOS Settings for those of you who have been having problems with the PD5N and higher bus speeds. Below are my recommended settings for bus speeds < 66MHz, 75MHz, and 83.3MHz. If you are using FPM RAM, then use the settings the in the 2nd (Non - EDO) column, if you are using EDO RAM with a 50/60/66MHz bus speed use the 3rd (66MHz Setting) column. If you are using EDO RAM with a 75/83.3MHz bus speed use the 4th (75/83MHz Setting) column. Finally, if you are looking for the safest and most stable setting, use the last column.

PD5N Chipset Features Setup
Item Non - EDO 66MHz Setting 75/83MHz Setting Safe Setting
Auto Configuration: Disabled Disabled Disabled Enabled
Refresh Cycle Time (us): 187.2 187.2 187.2 187.2
RAS Pulse Width Refresh: 6T 4T 5T 6T
RAS Precharge Time: 4T 2T 4T 4T
RAS to CAS Delay: 5T 2T 4T 6T
CPU to PCI Post Write: 4T 3T 4T 4T
ISA Bus Clock Frequency: 7.159MHz 7.159MHz 7.159MHz 7.159MHz
L2 Cache Tag Bit Length: 8bits 8bits 8bits 8bits
NA# Enable: Enabled Enabled Enabled Enabled
Starting Point of Paging: 2T 2T 4T 8T
CAS# Pulse Width (FP): 2T 1T 2T 2T
CAS# Pulse Width (EDO): 2T 1T 2T 2T
RAMW# Assertion Timing: 3T 2T 3T 3T
CAS Precharge Time (FP): 2T 1T/2T 2T 2T
CAS Precharge Time (EDO): 2T 1T/2T 2T 2T
Enhanced Memory Write: Disabled Enabled Disabled Disabled
Read Prefetch Memory RD: Enabled Enabled Enabled Enabled
CPU to PCI Burst Mem. WR: Enabled Enabled Enabled Enabled
System BIOS Cacheable: Disabled Disabled Disabled Disabled
Video BIOS Cacheable: Enabled Enabled Enabled Disabled
Memory Hole at 15M-16M: Disabled Disabled Disabled Disabled
VGA Shared Memory Size: 1  MB 1  MB 1  MB 1  MB
VGA Memory Clock (MHz): 60 60 60 50

 


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
Board Revision: 1.3
RAM: 2 - 32MB 50ns Micron EDO SIMMs
Hard Drive(s): Western Digital Caviar AC21600H
Video Card: Matrox Millennium (2MB WRAM)
Busmaster EIDE Drivers: SiS 5598 BMIDE Driver
Video Card Drivers: MGA Millennium 4.03.00.3410
OS: Windows 95 Service Release 2
System Cooling: InWin G500 Mid Tower AT Case
1" Heatsink/Fan Combo
3" Secondary Case Fan

 

Windows 95 Performance of the ABIT PD5N

CPU Business Winstone97 Business Graphics Winmark97
AMD K6/200 52.6 101
AMD K6/208 55.6 113
AMD K6/225 55.2 111
AMD K6/233 54.2 107
Cyrix 6x86MX-PR2/166 (150/75) 53.7 109
Cyrix 6x86MX-PR2/200 (166/66) 55.0 116
Intel Pentium MMX 200 49.8 99.9
Intel Pentium MMX 208 52.9 100
Intel Pentium MMX 225 53.4 110
Intel Pentium MMX 233 52.6 107
Intel Pentium MMX 250 56.3 125
Intel Pentium MMX 290.5 55.6 122

 


The Final Decision

The ABIT PD5N is a decent motherboard, although it doesn't take full advantage of the SiS 5598 chipset it is based upon it is still a great low cost alternative to some other single chip solutions.  It doesn't measure up to ABIT's usual quality and excellence, however the motherboard as a whole isn't bad, in fact it is much better than quite a few of its competitors...ABIT seems to hold the SiS 5598 throne, however MTech is working on an answer to it...the Mustang Ultra...with SDRAM support!  We'll just have to wait and see...

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