Help. Why my UDMA status keeps changing according to WinXP ?
This happens only on the Primary Master using my ATA66 IBM 22GXP.
First boot, it says the status is UDMA3 (eventhough it's an ATA66 hd). Once in a while, it
will really run at UDMA4.
But after some heavy harddisk activity, the status CHANGE to PIO. All this happens on the same
Windows session. In fact it happens within the first 10-15 minutes. It happens only on the
Primary Master. Checking the transfer rate using HDTach confirms that the hd transfer rate
is really falling. In Win2k, Microsoft says it is only the wrong status, but the harddisk is still
running at UDMA66, but I dont think this is the case with my WinXP. The harddisk is really losing
its UDMA, as indicated by the transfer rate which dropped from 50-52MB/sec to only 3-5 MB/sec.
Using my new ATA100 Seagate Barracuda IV, the problem is the same, so I think the problem is not
the harddisk itself, but might relate to VIA chipset, or WinXP driver for Via chipset ?
Anyone have this problem with hd performance losing its UDMA slowly ?
2nd question about Via 4in1:
For curiosity sake, I tried to solve the problem above by installing the latest VIA 4in1 4.33, but
the only available option to install is "The VIA 1.30 INF file". Where the hell "Atapi driver",
"Agp driver", and "IRQ Routing" go ? Using Win98SE, all options appears.
Is this normal for everyone here ?
Fyi, my system is Abit KT7 non-Raid, using Bios 3c.
