Index

Clearly the KT133A motherboard market is one of the most competitive we’ve ever seen and it has been ever since the chipset has been available.   All the contenders are more than just "enhanced" versions of their KT133-based siblings, a feat that has been accomplished by integrating more features and being more stable.

Today we have the KT133A solution from AOpen, a company that has won quite a few Editors’ Choice Awards from AnandTech.  In the past, we’ve liked their products for the high quality construction and rock solid stability.  Their last attempt at the KT133 market, the AK73-1394, was outstanding, but came a little too late to be a major factor in the market since the KT133A was already on the way.

This time around, AOpen has arrived with a KT133A board in a much more reasonable time frame to be competitive, but the road will not be easy since the majority of KT133A boards we’ve seen are already very high quality products.  Can AOpen make their KT133A solution, the AK73 ProA, stand out from the crowd?  Read on to find out.

AOpen AK73 ProA

CPU Interface
Socket-A
Chipset
VIA KT133A
VT 8363A North Bridge
VT 686B South Bridge
Form Factor
ATX
Bus Speeds
100 / 102 / 104 / 106 / 107 / 108 / 109 / 110 / 111 / 112
113 / 114 / 115 / 116 / 118 / 120 / 124 / 129 / 130
133 / 136 / 140 / 145 / 150 / 155 / 160 / 166
Core Voltages Supported
Auto Detect
1.100 - 1.850 V (in 0.025V increments)
I/O Voltages Supported
3.2 / 3.3 / 3.4 / 3.5 V
Memory Slots
3 168-pin DIMM Slots
Expansion Slots
1 AGP Slot
5 PCI Slots (5 full length)
0 ISA Slots
1 AMR Slot
On-board Audio
Analog Device AD1885 AC’97 CODEC
BIOS
Award Modular BIOS 6.00PG
BIOS Revision
R1.07
The Layout

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