I have a Maxtor 6Y080L0 and only works at udma-66. How I can restore its original value udma-133

Here is an archived Maxtor web site:
http://web.archive.org/web/200208052035 ... ities.html

UDMA mode setting utility (for UDMA-100):
http://web.archive.org/web/200208052035 ... 00updt.exe

Tech note:
http://web.archive.org/web/200208052035 ... 21006.html

The Wayback Machine is often very sloooow ...

Thanks for the reply, fzabkar, but does not work on my 80gb Maxtor Diamond Plus 9. If this helps are the characteristics of the model:

http://seagate.custkb.com/seagate/crm/s ... 71&Hilite=

Any other suggestions.

Thanks for the reply, fzabkar, but does not work on my 80gb Maxtor Diamond Plus 9. If this helps are the characteristics of the model:

http://seagate.custkb.com/seagate/crm/s ... 71&Hilite=

Any other suggestions.

Thanks for the reply, fzabkar, but does not work on my 80gb Maxtor Diamond Plus 9. If this helps are the characteristics of the model:

http://seagate.custkb.com/seagate/crm/s ... 71&Hilite=

Any other suggestions.

Thanks for the reply, fzabkar, but does not work on my 80gb Maxtor Diamond Plus 9. If this helps are the characteristics of the model:

http://seagate.custkb.com/seagate/crm/s ... 71&Hilite=

Any other suggestions.

Are you sure that your motherboard or controller supports UDMA-133?

There was a time when Maxtor was offering the UDMA-100 utility (and earlier UDMA-66) to make nonvolatile changes to the drive so that it would be downward compatible with certain chipsets and BIOSes. Was your drive ever subjected to this procedure?

How do HD utilities report the drive's current UDMA mode and maximum possible UDMA modes?

My chipset is VIA K8T800 supports udma133 (http://www.via.com.tw/en/products/chips ... es/k8t800/)
When you run the utility tells me:
This drive does not support Mode 5 - Mode 4 defaulting

I wonder if the drive's full capabilities are being masked by a DCO (Device Configuration Overlay).

Here are tools that can see and modify the DCO settings:
http://www.vidstrom.net/stools/taft/
http://www.hdat2.com/

See section 7.10 of the following document.

Working Draft AT Attachment 8 - ATA/ATAPI Command Set (ATA8-ACS):
http://www.t13.org/Documents/UploadedDo ... A8-ACS.pdf

See Word 2 of Table 25 on page 23. The various bits define whether "Reporting support for Ultra DMA mode n and below is changeable".

Sorry, that should have been "page 93".

TAFT Running tells me udma 6 is supported,
but HDAT2 will not let me change it
Here some screenshots of the programs:

http://picasaweb.google.com/kcuatro/HDD#

If you are referring to the following screenshot when you say that UDMA 6 is supported, then that is not what it is telling you. It is in fact indicating that the drive supports the ATA commands in the ATA/ATAPI-7 standard, and the commands in previous versions.

http://lh4.ggpht.com/_7zeP3BJkDi0/S9oXd ... 010015.jpg

The ATA commands are documented in the following document.

Working Draft AT Attachment 8 - ATA/ATAPI Command Set (ATA8-ACS):
http://www.t13.org/Documents/UploadedDo ... A8-ACS.pdf

Here are direct links to your other screenshots:

http://lh5.ggpht.com/_7zeP3BJkDi0/S9ogI ... 010023.jpg
http://lh5.ggpht.com/_7zeP3BJkDi0/S9ohM ... 010022.jpg
http://lh6.ggpht.com/_7zeP3BJkDi0/S9oXf ... 010017.jpg

Can you use HDAT2 to Dump DCO Data? Their should be a 512-byte (256 word) block that includes the UDMA settings.

I need to tell me what I have to change, my programming skills are zero.
This is the dump:

*******************************************************************************
HDAT2 v4.7.1 (c) 2009 CBL 01.05.2010 18:12:53.051
*******************************************************************************
Dump DCO Data [Maxtor 6Y080L0]
*******************************************************************************

00-08 01-09 02-0A 03-0B 04-0C 05-0D 06-0E 07-0F 0123456789ABCDEF
Ú--------------------------------------------------------------------¿
0000 ³ 0001 0000 001F B9FF 098A 0000 0000 01C8
....ÿ¹Š ....È
³
0000 ³ 0000 0000 0000 0000 0000 0000 0000 0000 ................ ³
0001 ³ 0000 0000 0000 0000 0000 0000 0000 0000 ................ ³
0001 ³ 0000 0000 0000 0000 0000 0000 0000 0000 ................ ³
0002 ³ 0000 0000 0000 0000 0000 0000 0000 0000 ................ ³
0002 ³ 0000 0000 0000 0000 0000 0000 0000 0000 ................ ³
0003 ³ 0000 0000 0000 0000 0000 0000 0000 0000 ................ ³
0003 ³ 0000 0000 0000 0000 0000 0000 0000 0000 ................ ³
0004 ³ 0000 0000 0000 0000 0000 0000 0000 0000 ................ ³
0004 ³ 0000 0000 0000 0000 0000 0000 0000 0000 ................ ³
0005 ³ 0000 0000 0000 0000 0000 0000 0000 0000 ................ ³
0005 ³ 0000 0000 0000 0000 0000 0000 0000 0000 ................ ³
0006 ³ 0000 0000 0000 0000 0000 0000 0000 0000 ................ ³
0006 ³ 0000 0000 0000 0000 0000 0000 0000 0000 ................ ³
0007 ³ 0000 0000 0000 0000 0000 0000 0000 0000 ................ ³
0007 ³ 0000 0000 0000 0000 0000 0000 0000 0000 ................ ³
0008 ³ 0000 0000 0000 0000 0000 0000 0000 0000 ................ ³
0008 ³ 0000 0000 0000 0000 0000 0000 0000 0000 ................ ³
0009 ³ 0000 0000 0000 0000 0000 0000 0000 0000 ................ ³
0009 ³ 0000 0000 0000 0000 0000 0000 0000 0000 ................ ³
000A ³ 0000 0000 0000 0000 0000 0000 0000 0000 ................ ³
000A ³ 0000 0000 0000 0000 0000 0000 0000 0000 ................ ³
000B ³ 0000 0000 0000 0000 0000 0000 0000 0000 ................ ³
000B ³ 0000 0000 0000 0000 0000 0000 0000 0000 ................ ³
000C ³ 0000 0000 0000 0000 0000 0000 0000 0000 ................ ³
000C ³ 0000 0000 0000 0000 0000 0000 0000 0000 ................ ³
000D ³ 0000 0000 0000 0000 0000 0000 0000 0000 ................ ³
000D ³ 0000 0000 0000 0000 0000 0000 0000 0000 ................ ³
000E ³ 0000 0000 0000 0000 0000 0000 0000 0000 ................ ³
000E ³ 0000 0000 0000 0000 0000 0000 0000 0000 ................ ³
000F ³ 0000 0000 0000 0000 0000 0000 0000 0000 ................ ³
000F ³ 0000 0000 0000 0000 0000 0000 0000 27A5 ..............¥' ³
À--------------------------------------------------------------------Ù

Sorry, I can't help you. :-(

It appears that Word 2 of the DCO block (0x001F) is indicating that reporting support for Ultra DMA modes 5 & 6 is not changeable.

See page 93 of the following document.

Working Draft AT Attachment 8 - ATA/ATAPI Command Set (ATA8-ACS):
http://www.t13.org/Documents/UploadedDo ... A8-ACS.pdf

In any case, even if changes to the DCO were possible, those changes would appear to be volatile. I suspect Maxtor's utility has written the changes to the firmware, either on the platters, or in the physical ROM, using a vendor specific ATA command.

I'm not a DR guy, but no doubt the solution would be very easy, using professional software tools. Without knowing anything about the structure of the firmware modules, I expect you could dump the existing "UDMA-4" firmware, use Maxtor's utility to reduce the UDMA mode to 3, dump the modified UDMA-3 firmware, and then compare the two sets of modules. There will probably be a difference in a single word (0x001F versus 0x000F), and maybe a difference in a checksum word. You would change 0x001F to 0x007F, and recompute the checksum, probably over a 512-byte block.

I have done something similar for my old 2x Ricoh CD writer, but all its firmware was in flash. I don't know how a HD stores Identify Device info blocks, but in my CD writer there was an Identify Packet Device info block in flash memory, and the solution involved flipping a DMA bit and recomputing checksums.

One thing you could try is to send the drive a Set Features ATA command. However, the changes will once again be volatile. Nevertheless, it would be interesting to see whether the drive allows UDMA 6 to be selected, even though "reporting support" is disabled. Let me know if you want to try this.

I can indicate that software performs the dump and the restoration of the firmware. Then you send the dump and help me with the changes.

Sorry, I can't help you. I'm not a DR guy. I don't have professional software tools. I was merely suggesting one possible approach if I did have such tools. :-(