Problems with Abit's HPT366 udma/66 board and Maxtor 96147U8 hd.

Problems with Abit's HPT366 udma/66 board and Maxtor 96147U8 hd.

Post by Juh » Mon, 24 Jul 2000 04:00:00

Yesterday I installed Abit Hot Rod66 udma controller with a Maxtor 96147U8
to my aging linux system. I patched my 2.2.16-kernel (which allready had
reiserfs patch in it) with Hedricks ide-patch and all seemed to work fine.

Unfortunately a problem manifested itself when copying file through
samba-share over 100M ether (with digital 21140 card using tulip driver):
machine just stopped with following on console "timeout waiting DMA
ide_dmaproc: chipset supperted ide_dma_timeout func only: 14" (or 12, I
got both at different times).

I then tested different kernel versions, 2.4-test3 and 2.3.99-pre9. Same

I tried my IBM DJNA-352030 to the machine and found out that with the IBM
hd there was no problem.

Only solution I was able to find was to add the maxtor drive to
/usr/src/linux/drivers/block/hpt366.c bad_ata66_4 and bad_ata66_3-lists so
it would be forced to udma/33. It sees to work fine.

I read that people have had problems running maxtor drives with Hot Rod66
but saw no mention of 96147U8, neither is it in the forementioned

Just my 2 cents.

- Juha Kuikka


1. old EIDE HD + UDMA 33 HD on a UDMA 66 board

hi, all

I decided to keep my old EIDE WD hard drive as a backup
with a new UDMA 33 IBM deskstar on a Intel CC820 motherboard
which has a UDMA 66 capable cable.
Since this UDMA66 80pin cable is backward compatible with all
PIO and UDMA modes, I know this setup will work.
My question is "would it be any performance loss for this
setup?"  I mean, would the new IBM be affected by the presence
of the legacy EIDE drive ?
Maybe it's obvious to some of you guys, or it's been answered
somewhere, but could anyone out there shed a light on this?


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