udma problem

[ddyck 0]

Currently I am running both Win98 and Win2000 on my computer. I have 2 Maxtor HDD installed which are both udma compliant. In Win98, both harddrives are recognized as udma and I get good transfer rates with both. In Win2000, only the primary master is recognized as udma. The primary slave is set to PIO only, and I get terrible transfer rates with it. I have the primary slave set as "udma if available" but it doesn't recognize it. I have made changes to the registry to recognize it as udma, but nothing works. If I take the HDD out and reinstall it, would my problem be fixed? I don't know where to go from here. Help please.

 

Dave

[eepok 0]

see the post i just made about this very same prolem under the "maxtor 30gb too slow" post... it may be helpful

[eepok 0]

THE PROBLEM HAS BEEN SOLVED!!!

Thanks to the amazingly dedicated geeks like myself at Lockergnome, I found out the my primary slave (CDRW) was slowing down the whole ide cable!

I just put both my HDDs on the primary cable and the dvd and CDRW on the secondary!! ALL is good now!!

 

YAY!!!!!!!!!!!!!!!

[pbuckne 0]

Your transfer rates to your CDRW should improve, as well. By the way, what type of CDRW and DVD do you have? I am currently seeking two that will play well together, and have heard some nightmare stories...

[eepok 0]

I'm using a yamaha 8x4x24 CD-RW with a, Afreey 10x dvd

[BladeRunner 0]

This 'issue' was corrected with the Intel 815 chipset and newer.

If you read the specification of that chipset you'll see that Intel added a system that allows each IDE device on a channel to run at independent speeds, so an ATA-33 device will run at that speed which in turn will not slow down an ATA-100 device running at it's correct speed.

It always was the case that on a single IDE channel both devices would slow down to the speed of the slowest device.

[eepok 0]

unfortunately I'm running an AMD 751 Irongate Northbridge and a VIA 686a Southbridge on my ASUS K7M... it's AMD