- Thread starter
- #81
F
Franc Zabkar
Re: A hack, anyone, to turn on dma ? SOLVED ???
On Sat, 12 Jul 2008 02:55:56 -0400, "MEB" <meb@not here@hotmail.com>
put finger to keyboard and composed:
>| I have an AMD K6-2 450MHz. The Ricoh reads at 6X in P-CAV mode.
>
> Well, that's about the min. for reliable CDR/W. You must be having some
>difficulties by now with the new inks and disks..?
I don't use it much anymore. Instead I have an LG DVD writer in my
Athlon XP box. The Ricoh burns Verbatim 1X-16x blanks but has trouble
with TDK 52X CD-Rs.
BTW, if you suspect your drive is burning slowly due to a particular
brand of disc, I think this utility may provide an answer. It analyses
your drive's firmware and reports the hard coded write speeds for
supported media:
http://ala42.cdfreaks.com/MCSE/MediaCodeSpeedEdit.zip
http://ala42.cdfreaks.com/MCSE/
You can also use it to patch new media types and speeds into your
existing firmware.
>| I used version 0.84 beta of CD Speed for my CPU utilisation and
>| interface burst rate tests. Version 1.01.3 produced a result of 0 for
>| the Ricoh's burst rate in both DMA and PIO modes, and a burst rate of
>| 1MB/s (1158KB/s) for the 10X DVD-ROM in DMA mode.
>|
>| This is what I get with a Drive Check:
>| http://www.users.on.net/~fzabkar/MP6200A_DriveCheck.txt
>
>Got a 404 on the MP6200A_DriveCheck.txt link
>It should be:
>http://www.users.on.net/~fzabkar/MP6200A/MP6200A_DriveCheck.txt
Sorry.
> Oh so its only 6X??? oh wow...
Yeah, it's as old as Methusalah but it still works (it cost me about
AU$460). However, I'm a little annoyed that its DMA capability appears
to have been an unfinished project.
>| Version 1.02 of Info Tool produced these results:
>| http://www.users.on.net/~fzabkar/MP6200A/
>
>Strange, 0 read speed, no read-out, the drive isn't being recognized
>properly... see a couple of differences in our drivers, esdi-506.pdr, loaded
>system files, etc...
>
>1.03.3 Info Tool read-out for my Samsung drive has been sent to you for
>comparison... meb-samsung-InfoTool.zip
Got it.
>| In DMA mode, Info Tool hung while interrogating the Ricoh. I was able
>| to regain control of the program by opening or closing the tray, but
>| the R/W features were not detected.
>
> You might be getting a residual from your manual flash change or your
>present driver configuration... though I have noted those same issues when a
>drive is about to flake out..
FWIW, here is a Ricoh utility to change transfer modes between UDMA
and MW-DMA:
http://ext.ricoh.co.jp/cd-r/exe/RDTMC.exe
It doesn't see my drive, though.
>| What I don't understand about the CPU utilization result in CD Speed
>| is that during a file copy test with Explorer, CpuIdle hardly budged
>| from a figure of ~95% idle. Furthermore, the same test with my 10X
>| DVD-ROM drive (at 2.2MB/s) resulted in 85% CPU idle time in DMA mode
>| and 60% idle in PIO mode. With the CPU sitting at 98% when completely
>| idle, this equates to 13% busy in DMA mode and 38% busy in PIO mode, a
>| difference of 1:3. This ratio is consistent with that observed with CD
>| Speed:
>|
>| 1X 2X 4X 8X Drive speed for DVD-ROM
>| --------------
>| 1 2 5 10 % CPU utilisation in DMA mode
>| 3 7 14 29 % CPU utilisation in PIO mode
>|
>| - Franc Zabkar
>
> Might want to compare the drivers - yours verses mine, and re-flash the
>Ricoh with the authorized flash version for comparison.
>Something is wacked here, but so far its eluding me... let me mual over your
>drivers and info for a bit...
>
>Did notice that 6X CDROMs are listed as unsupported in Nero's CFG and it
>contains no obvious Ricoh entries.
CD Speed's results for my Ricoh make some kind of sense at 1X and 2X
speeds (CPU utilisation doubles when reading at 2X), but the numbers
are wacky at 4X and 8X, possibly because the drive doesn't support
these speed strategies, only 1X, 2X, and 6X. I don't want to risk
another flash, though ...
>http://www.ricoh.com/drive/asia/support/faq/mp6200/pc_a.html
>MP6200A(ATAPI model) Bus master driver.
>. In some cases the Bus Master device driver does not support the CD-RW
>drive. In this case, it is recommended to change to a Standard IDE driver ...
>Application information
>. Problems may occur if memory resident programs like anti-virus software
>are installed.
>. Errors may occur with Task-scheduler running in the background.
>. Real-Player (version 4.0 or over) may cause errors ...
None of the above apply in my case.
- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.
On Sat, 12 Jul 2008 02:55:56 -0400, "MEB" <meb@not here@hotmail.com>
put finger to keyboard and composed:
>| I have an AMD K6-2 450MHz. The Ricoh reads at 6X in P-CAV mode.
>
> Well, that's about the min. for reliable CDR/W. You must be having some
>difficulties by now with the new inks and disks..?
I don't use it much anymore. Instead I have an LG DVD writer in my
Athlon XP box. The Ricoh burns Verbatim 1X-16x blanks but has trouble
with TDK 52X CD-Rs.
BTW, if you suspect your drive is burning slowly due to a particular
brand of disc, I think this utility may provide an answer. It analyses
your drive's firmware and reports the hard coded write speeds for
supported media:
http://ala42.cdfreaks.com/MCSE/MediaCodeSpeedEdit.zip
http://ala42.cdfreaks.com/MCSE/
You can also use it to patch new media types and speeds into your
existing firmware.
>| I used version 0.84 beta of CD Speed for my CPU utilisation and
>| interface burst rate tests. Version 1.01.3 produced a result of 0 for
>| the Ricoh's burst rate in both DMA and PIO modes, and a burst rate of
>| 1MB/s (1158KB/s) for the 10X DVD-ROM in DMA mode.
>|
>| This is what I get with a Drive Check:
>| http://www.users.on.net/~fzabkar/MP6200A_DriveCheck.txt
>
>Got a 404 on the MP6200A_DriveCheck.txt link
>It should be:
>http://www.users.on.net/~fzabkar/MP6200A/MP6200A_DriveCheck.txt
Sorry.
> Oh so its only 6X??? oh wow...
Yeah, it's as old as Methusalah but it still works (it cost me about
AU$460). However, I'm a little annoyed that its DMA capability appears
to have been an unfinished project.
>| Version 1.02 of Info Tool produced these results:
>| http://www.users.on.net/~fzabkar/MP6200A/
>
>Strange, 0 read speed, no read-out, the drive isn't being recognized
>properly... see a couple of differences in our drivers, esdi-506.pdr, loaded
>system files, etc...
>
>1.03.3 Info Tool read-out for my Samsung drive has been sent to you for
>comparison... meb-samsung-InfoTool.zip
Got it.
>| In DMA mode, Info Tool hung while interrogating the Ricoh. I was able
>| to regain control of the program by opening or closing the tray, but
>| the R/W features were not detected.
>
> You might be getting a residual from your manual flash change or your
>present driver configuration... though I have noted those same issues when a
>drive is about to flake out..
FWIW, here is a Ricoh utility to change transfer modes between UDMA
and MW-DMA:
http://ext.ricoh.co.jp/cd-r/exe/RDTMC.exe
It doesn't see my drive, though.
>| What I don't understand about the CPU utilization result in CD Speed
>| is that during a file copy test with Explorer, CpuIdle hardly budged
>| from a figure of ~95% idle. Furthermore, the same test with my 10X
>| DVD-ROM drive (at 2.2MB/s) resulted in 85% CPU idle time in DMA mode
>| and 60% idle in PIO mode. With the CPU sitting at 98% when completely
>| idle, this equates to 13% busy in DMA mode and 38% busy in PIO mode, a
>| difference of 1:3. This ratio is consistent with that observed with CD
>| Speed:
>|
>| 1X 2X 4X 8X Drive speed for DVD-ROM
>| --------------
>| 1 2 5 10 % CPU utilisation in DMA mode
>| 3 7 14 29 % CPU utilisation in PIO mode
>|
>| - Franc Zabkar
>
> Might want to compare the drivers - yours verses mine, and re-flash the
>Ricoh with the authorized flash version for comparison.
>Something is wacked here, but so far its eluding me... let me mual over your
>drivers and info for a bit...
>
>Did notice that 6X CDROMs are listed as unsupported in Nero's CFG and it
>contains no obvious Ricoh entries.
CD Speed's results for my Ricoh make some kind of sense at 1X and 2X
speeds (CPU utilisation doubles when reading at 2X), but the numbers
are wacky at 4X and 8X, possibly because the drive doesn't support
these speed strategies, only 1X, 2X, and 6X. I don't want to risk
another flash, though ...
>http://www.ricoh.com/drive/asia/support/faq/mp6200/pc_a.html
>MP6200A(ATAPI model) Bus master driver.
>. In some cases the Bus Master device driver does not support the CD-RW
>drive. In this case, it is recommended to change to a Standard IDE driver ...
>Application information
>. Problems may occur if memory resident programs like anti-virus software
>are installed.
>. Errors may occur with Task-scheduler running in the background.
>. Real-Player (version 4.0 or over) may cause errors ...
None of the above apply in my case.
- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.
