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As far as I know there is only ONE Promise Controller applicable:

PDC 20265

Latest ATA 100 drivers are version (verified from my own PC)
these drivers are updated together with BIOS update.
My current BIOS version: ASUS A7V-133 ACPI BIOS Revision 1010 Beta 001-A

Anybody with a different PDC?. You may read the PDC number on the Chip.

Promise PDC info at Promise

PDC20265 Introduction

PROMISE PDC20265 ASIC is a PCI bus mastering ATA/ATAPI controller chip which supports complete UDMA/100 specifications. It communicates with the PCI bus using a burst bus mastering and advanced scatter/gather engine for better overall system performance. It is widely used on motherboard, system products & NAS products.

128 Pin, PQFP ASIC

Host Bus Interface
* 32-bit PCI interface compliant to PCI Rev 2.2
* Up to 33MHz bus speed & 133MB/sec burst data transfer rate
* Co-exists with built-in IDE channels or other SCSI controllers

Ultra ATA/100 Interface
* Supports Ultra ATA/100 specification of 100MB/sec transfers with CRC error-checking
* Support two independent IDE channels & up to four UDMA/100/66/33 or EDIE drives


There is a dropdown list, select ATA 100, not TX2.

Compatibility & Utilities
* GUI monitors status of array
* BIOS utility for configuration and maintenance

Driver support
* Windows 9x/ME/NT/2000
* RedHat Linux
* SuSE Linux
* NetWare




Last reviewed: Wed, 9 April, 2003

Contact info: asusa7v@conram.com

This site is private and not affiliated with anybody, however,
I will be PROUD to present information and links with logo´s to other established A7V sites!!