Re: UDMA goofed up (I think)

Chuck wrote:
HI, LV (?)
Thanks for the help, but as I just told Gerry, I've tried that at least 1/2 dozen times to no effect. I have also tried the registry edit described. But something occurs to me. I'll have to look at home (at work now), but I seem to recall that in that entry, the list of drives (00000, 00001, etc, or however it goes) didn't have 00001, which would be the drive in question. Well, the one in PIO, anyway. Even the faster drive is still running at only UDMA 2.
Argh!

Looking through your listing again, I can see another potential mechanism.

You have an ICH5/ICH5R chipset. The Southbridge has options for "Enhanced"
(PCI bus mapped drives) or "Compatible" (I/O mapped drives). Compatible mode
restricts usage to four of six possible drives, and compatible is used when
working with Win98.

The ICH5 has room for six disks. The Primary ribbon cable holds two disks.
The Secondary ribbon cable holds two disks. There are two SATA ports and
they have room for two disks (and are treated by the BIOS as if they were
a third ribbon cable). If the BIOS is put in "Compatible" mode, the user
is offer options to choose any two of three "ribbon cables" for their
drive selection. So there should be, perhaps, three choices for hard drive
config (to choose which four of six drives to support).

OK, now what happens in Enhanced mode (suitable for Win2K/WinXP etc) ?
Well, Enhanced makes all six drive ports available. Which means there is
no need to make a "sub choice" in the BIOS, as to which drives to use,
because with Enhanced, all drives work.

It turns out, if a user selects Enhanced, some BIOS still have the disk
selection item. Only one of the three choices then is correct (it might
say "SATA" perhaps). The other two choices will cause slow drive operation!

Check the BIOS. Usually the BIOS default values, are the ones which are
functionally correct. So check the manual for guidance.

Paul


"LVTravel" wrote:

Right click My Computer, left click Manage then click on Device Manager. Click on + mark next to IDE ATA....controllers (obviously you know how to get there but I give instructions just in case). Right click on the IDE Channel that you are having an issue with and Uninstall it. Reboot the computer. The computer will find and reinstall the driver. See if that fixed your issue with PIO.

Information from http://winhlp.com/node/10

For repeated DMA errors. Windows XP will turn off DMA mode for a device after encountering certain errors during data transfer operations. If more that six DMA transfer timeouts occur, Windows will turn off DMA and use only PIO mode on that device.
In this case, the user cannot turn on DMA for this device. The only option for the user who wants to enable DMA mode is to uninstall and reinstall the device.

Windows XP downgrades the Ultra DMA transfer mode after receiving more than six CRC errors. Whenever possible, the operating system will step down one UDMA mode at a time (from UDMA mode 4 to UDMA mode 3, and so on).

Hope this information helps, let us know.






"Chuck" <Chuck@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message news:FE5CFB4C-EF83-4609-B1AD-E7C231610413@xxxxxxxxxxxxxxxx
Hi, all. Here's my dilemma.
I was using my boy's PC the other day to rip a DVD, when I noticed his drive
was running at least 2x what mine does. SO I got to poking around in my
system info, and found many strange things. Both my HDDs are running at a
lower UDMA mode than they are rated for. In fact, one is, I believe, running
in PIO, and defeats all attempts to reset it. Here is info, taken from
EVEREST:

Computer:
Operating System Microsoft Windows XP
Home Edition
OS Service Pack Service Pack 2
DirectX 4.09.00.0904
(DirectX 9.0c)
Computer Name PC1 (Our PC)
User Name Chuck

Motherboard:
CPU Type Intel Pentium 4,
2800 MHz (14 x 200)
Motherboard Name Dell Dimension 4600i
Motherboard Chipset Intel Springdale-G
i865G
System Memory 1024 MB (PC3200 DDR
SDRAM)
BIOS Type Phoenix (08/26/04)

Storage:
IDE Controller Intel(R) 82801EB
Ultra ATA Storage Controllers
IDE Controller Intel(R) 82801EB
Ultra ATA Storage Controllers
Disk Drive ST380011A (80 GB,
7200 RPM, Ultra-ATA/100)
Disk Drive HDT722516DLAT80
(160 GB, 7200 RPM, Ultra-ATA/133)
Optical Drive LITE-ON DVDRW
SOHW-1693S


[ ST380011A (3JV9C0LL) ]

ATA Device Properties:
Model ID ST380011A
Serial Number 3JV9C0LL
Revision 3.16
Parameters 155010 cylinders, 16
heads, 63 sectors per track, 512 bytes per sector
LBA Sectors 156250000
Buffer 2 MB
Multiple Sectors 16
ECC Bytes 4
Max. PIO Transfer Mode PIO 4
Max. UDMA Transfer Mode UDMA 5 (ATA-100)
Active UDMA Transfer Mode UDMA 2 (ATA-33)
Unformatted Capacity 76294 MB

ATA Device Features:
SMART Supported
Security Mode Supported
Power Management Supported
Advanced Power Management Not Supported
Write Cache Supported
Host Protected Area Supported
Power-Up In Standby Not Supported
Automatic Acoustic Management Supported
48-bit LBA Supported
Device Configuration Overlay Supported


[ HDT722516DLAT80 (VD0D1CTCDK8WLE) ]

ATA Device Properties:
Model ID HDT722516DLAT80
Serial Number VD0D1CTCDK8WLE
Revision V43OA70A
Parameters 319120 cylinders, 16
heads, 63 sectors per track, 512 bytes per sector
LBA Sectors 321672960
Buffer 7674 KB (Dual
Ported, Read Ahead)
Multiple Sectors 16
ECC Bytes 51
Max. PIO Transfer Mode PIO 4
Max. UDMA Transfer Mode UDMA 6 (ATA-133)
Active UDMA Transfer Mode UDMA 0
Unformatted Capacity 157067 MB

ATA Device Features:
SMART Supported
Security Mode Supported
Power Management Supported
Advanced Power Management Supported
Write Cache Supported
Host Protected Area Supported
Power-Up In Standby Supported
Automatic Acoustic Management Supported
48-bit LBA Supported
Device Configuration Overlay Supported


As you can see, one's slow, one seems to be in totally non-UDMA mode. In
Device Mgr, under Primary IDE Channel, Device 0 seems to correspond to the
ST3800, and is shown at UDMA 2. Device 1 is shown as PIO [Transfer Mode:DMA
if available], with no option to change it. I am at a total loss. I've tried
everything I can think of, from uninstalling the HDD and rebooting in hopes
it would redetect the UDMA settings,. to registry editing. Nothing works.
Help!!

Chuck




.

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