P4P800 and CD burn speed

  • Thread starter Thread starter billh
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billh

Hi,
I notice that my burn speed is only around 16X using this board. I swapped
the LG with a Samsung and they both ran at around 32x+ on an AMD 1.2G and
both run at 16x on the P4P. Used Roxio 5 and Nero both upgraded to the
latest for their respective versions - no difference. With Roxio it starts
out at 40x+ then quickly drops down to 16x, sometimes even going lower and
then coming back. Nero says its starting to write at 52x but the time taken
to write a large file indicates it is running around 16x. I tried various
P4P800 bios settings (also upgraded to 1014 and 1015) with no luck and
things like Enhanced/Compatible IDE, PNP OS.

Hard drive is regular IDE (no S-ATA) and it run well; I get over 1Gb/min
transfer in Drive Image. Roxio tests show more than adequate rates.

Anybody familiar with this kind of problem - or is it a feature?

Thanks,
Bill
 
billh said:
Hi,
I notice that my burn speed is only around 16X using this board. I swapped
the LG with a Samsung and they both ran at around 32x+ on an AMD 1.2G and
both run at 16x on the P4P. Used Roxio 5 and Nero both upgraded to the
latest for their respective versions - no difference. With Roxio it starts
out at 40x+ then quickly drops down to 16x, sometimes even going lower and
then coming back. Nero says its starting to write at 52x but the time taken
to write a large file indicates it is running around 16x. I tried various
P4P800 bios settings (also upgraded to 1014 and 1015) with no luck and
things like Enhanced/Compatible IDE, PNP OS.
Click to expand...

Sounds like you don't have DMA mode turned on. I'd bet the ide
controller is still on PIO mode.

--
+---------------------------------+--------------------------------+
| Todd Clayton aka DJ Todd | Real Synthetic Audio |
| http://www.synthetic.org | Electro-Industrial-Synthpop |
| irc.habber.net #rmipeople | radio for the net-generation. |
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Todd Clayton said:
Sounds like you don't have DMA mode turned on. I'd bet the ide
controller is still on PIO mode.

--
+---------------------------------+--------------------------------+
| Todd Clayton aka DJ Todd | Real Synthetic Audio |
| http://www.synthetic.org | Electro-Industrial-Synthpop |
| irc.habber.net #rmipeople | radio for the net-generation. |
| (e-mail address removed) | Unlicensed, Unregulated, and |
| ICQ: 56785153 | Unconventional. |
+---------------------------------+--------------------------------+
<Dayv> "It's like The Prisoner, but with yiffing."
Click to expand...


Todd,
Thanks for pointing me in the right direction. Multi-word DMA was turned on
but it wouldn't go into UDMA mode. I disabled the LG reader on the same
channel and then the writer went into UDMA2 mode and that fixed it. At least
I now know what the trouble really is. I have a Promise ATA card laying
around so maybe I'll put the writer on that to get it off the channel with
the reader.
Billh
 
Probably not a good idea - the Promise ATA cards aren't very good with CD
drives, I don't know if they will even run them in DMA mode..
 
You turn out to be absolutely correct. I tried it with no improvement in
writing speed. So now I have the HD on the Promise, CDR on one IDE channel
and the CDRW on the other and all is well. I might be able to fool around
with it some more but I am tired of this problem and the solution works. I
wondered if putting the CDRW on the IDE channel as master would help.

I think the real culprit in all of this is the LG CDR. On two other systems
the non-LG CDRs are also running on UDMA2 with the CDRW running as a UDMA2
slave device. I can't get the LG into UDMA2 mode.
Billh
 
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