First of all: I know this is a known problem, but I've read and tried
all the suggestions in mandrakeuser/docs/hardware, linhardware, and many
usenet archives, and have found no working solution.

Only after that, I'm posting here.

The System:
- AMD Duron 750
- Asus A7V bios revision 1004 [09/21/2000-VIA-KT133-<A7V>]
- IDE Interface: VT82C586 IDE (Apollo) [VIA Technologies, Bus Type: PCI]
- HD Maxtor 51536H2 15Gb 2Mb 7.2krpm ATA100
- DVD CREATIVE DVD1241E
- CDRW LITE-ON LTR-24202B
- Linux Mandrake 8.1 download edition (3 cds)


The Problem:
- If the HD is connected as ATA66, the system installs and works
wonderfully.

- If the HD is connected as ATA100, the system hangs just after LILO, at
the blue "multilanguage-welcome" screen.
If I try a CD re-installation, the boot process fails to find hda
saying:
hda: IRQ probe failed 0xffffffff8
then identifies a Maxtor 51536H2 on hde, and hangs (kernel panic).

Now, this is what I get executing lspci -vv|less:

[...]

00:11.0 Unknown mass storage controller: Promise Technology, Inc.:
Unknown device 0d30 (rev 02)
Subsystem: Promise Technology, Inc.: Unknown device 4d33
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 32
Interrupt: pin A routed to IRQ 10
Region 0: I/O ports at 9000 [size=8]
Region 1: I/O ports at 8800 [size=4]
Region 2: I/O ports at 8400 [size=8]
Region 3: I/O ports at 8000 [size=4]
Region 4: I/O ports at 7800 [size=64]
Region 5: Memory at de800000 (32-bit, non-prefetchable) [size=128K]
Expansion ROM at <unassigned> [disabled] [size=64K]
Capabilities: <available only to root>

[...]

Wich, according to 
this: http://www.mandrakeuser.org/docs/hardware/hbits5.html 
led me to try the following, from a boot floppy:

linux ide2=0x9000,0x8802

and even:

linux ide2=0x9000,0x8802 ide3=0x8400,0x8002

but it didn't work.

So, I don't know what to do now.
You could say: can't you be content with ATA66, since it works on your
system?

No, I can't.
I'm not a performance maniac: I just need expandability.
I'll have to add more HDs to my system in the near future, and this
risks to become a real problem.

Anyone can help me?

Please send replyes to my address ([EMAIL PROTECTED]).

Thanks,
Carlo Salinari


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