I have the same motherboard, and it works fine for me. Note the
80w cable detection. Perhaps you've got a bad cable?
-Nick
----------VIA BusMastering IDE Configuration----------------
Driver Version: 3.23
South Bridge: VIA vt82c686b
Revision: ISA 0x40 IDE 0x6
Highest DMA rate: UDMA100
BM-DMA base: 0xd800
PCI clock: 33MHz
Master Read Cycle IRDY: 0ws
Master Write Cycle IRDY: 0ws
BM IDE Status Register Read Retry: yes
Max DRDY Pulse Width: No limit
-----------------------Primary IDE-------Secondary IDE------
Read DMA FIFO flush: yes yes
End Sector FIFO flush: no no
Prefetch Buffer: yes no
Post Write Buffer: yes no
Enabled: yes yes
Simplex only: no no
Cable Type: 80w 80w
-------------------drive0----drive1----drive2----drive3-----
Transfer Mode: UDMA UDMA UDMA PIO
Address Setup: 30ns 30ns 30ns 120ns
Cmd Active: 90ns 90ns 90ns 90ns
Cmd Recovery: 30ns 30ns 30ns 30ns
Data Active: 90ns 90ns 90ns 330ns
Data Recovery: 30ns 30ns 30ns 270ns
Cycle Time: 20ns 20ns 60ns 600ns
Transfer Rate: 100.0MB/s 100.0MB/s 33.3MB/s 3.3MB/s