Problem with CUSL2 and Promise Fasttrak100

[bmg]

I've generally had good results with the Promise Fasttrak100, however, the write performance with the cusl2 is horrible. Read performance is fine. I've tried both of my Fasttrak100 controllers and 2 different sets of 45Gb IBM drives. I've tried the 1003 and 1005.001 bios. I've tried both slots 2 and 4, neither of which is sharing an IRQ. BTW, the Promise Ultra100 works fine. The problem is unique to the Fasttrak100. I don't think it's a driver problem, as I can tell that the write performance is poor in dos mode as well as Win98SE. By slow I mean the burst/sequential/random write rates are all under 2mb/sec, whereas reads are 77/69/7mb/sec. The Fasttrak100 setup works great with my KT7 motherboard.

Anyone have a clue what the problem might be??

 

[Trashman]

May I ask what benchmark program you used for testing? I've just put together an identical system, just curious on how this benches out.

 

[subhuman]

Did you install the appropriate drivers for the 815 chipset? The 815 chipset which the CUSL2 uses isn't natively supported under 98, but is under ME.