ROBY RU_128 BIOS: Trouble w. HPT366 + UDMA "4"

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Wolfram
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Joined: Tue Jul 30, 2002 3:19 am
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ROBY RU_128 BIOS: Trouble w. HPT366 + UDMA "4"

Post by Wolfram »

Hi everyone,

I had flashed the Roby RU BIOS with HPT V.128 and PIII support, just to check it out.

Then I got stuttering/sloppy sound when playing mp3s while the HD connected to the HPT was accessed. Also responsiveness decreased rapidly when I ran apps that do a lot of HD access like WinMX. Thought the new BIOS was to blame, and was ready to flash back to standard RU.

Then I noticed that the HPT reported the HD running in UDMA 4 Mode during bootup. UDMA 4 (100)? :shock: Well, since the HPT366 can only manage UDMA 3 (66), this surprised me. So I changed the setting in the HPT BIOS to UDMA 3, and everything´s fine now. :)

I don´t remember if the standard RU BIOS also defaulted to "UDMA 4", but I didn´t have any problems when I had flashed it.
BP6, RU BIOS, XP SP3, ACPI, 2x366@523(1,95V), Pentalpha HS + 1x 12cm fan @5V, 768MB, Powercolor Geforce 3, RTL8139D NIC, Terratec EWS64L, Samsung M40 80GB (2,5''), LiteOn CDRW
Derek
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Post by Derek »

UDMA 5 is ATA 100. UDMA 4 is an accelerated ATA 66. Confusing, eh? But if you clocked it down to UDMA 33 and it solved a lot of problems maybe we should all try that :shock:
BCN
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Post by BCN »

I think UDMA3 was supposed to run at 48MB/sec bursts, right? :)
Dual C366@550MHz 1.90V :) (History)
yet single PIII-S 512Kb L2 cache at 1400MHz@700MHz
BP6 (not modded yet)
256MB PC133 C2
GF4Ti4200-8x
Maxtor 2x60Gb - all on promise ATA133
Lite-On LTR 40125S@48125W!!!
Plus P4 system
Wolfram
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Post by Wolfram »

Derek wrote:UDMA 5 is ATA 100. UDMA 4 is an accelerated ATA 66. Confusing, eh?
:shock: Uh-oh! Didn´t know that. Thanks!

I´m still not sure if this is just a problem of this specific BIOS. Don´t have the time right now to try that with the standard RU, but I´ll do that ASAP.
BP6, RU BIOS, XP SP3, ACPI, 2x366@523(1,95V), Pentalpha HS + 1x 12cm fan @5V, 768MB, Powercolor Geforce 3, RTL8139D NIC, Terratec EWS64L, Samsung M40 80GB (2,5''), LiteOn CDRW
Wolfram
Posts: 401
Joined: Tue Jul 30, 2002 3:19 am
Location: Germany

Post by Wolfram »

Forget all that I said, the BIOS isn´t the culprit. I found the solution of my problem and posted it here.
BP6, RU BIOS, XP SP3, ACPI, 2x366@523(1,95V), Pentalpha HS + 1x 12cm fan @5V, 768MB, Powercolor Geforce 3, RTL8139D NIC, Terratec EWS64L, Samsung M40 80GB (2,5''), LiteOn CDRW
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