MultiWord DMA 2 insted of UDAM 2 - Club CDFreaks

Deputy_1 · 08-05-2002

Hello there...

maybe there is someone out there who knows this better than me..

i bought an Acer 2010A Cd-RW not so long ago, and my litle question is that in WinXP i can´t get i to run any higher than Multi Word DMA 2, i have looked at acer´s homepage and can´t fint anything about it´s max DMA transfer rate. But shall not almost every new Cd-rw run at UDMA 2. ? ? , does any of you have this Acer model and som more experience than me ?

maybe i´m completly wrong...

// Deputy_1

*Mr. Belvedere* · 08-05-2002

The writer could be detected wrong.
In that case remove it (and all other ide devices and drivers !) from the hardware properties and let windows re-detect it.

also if your mobo has a via chipset , make sure to get the latest via drivers at www.viatech.com (4 in 1 drivers i thought).

last :

DMA Mode 2 at 16.6 MB/s
Ultra ATA/33 at 33.3 MB/s
Ultra ATA/66 at 66.6 MB/s

Multi-word DMA Mode 1 13.3 MB/s
Multi-word DMA Mode 2 16.6 MB/s
Ultra ATA Mode 2 33.3 MB/s
Ultra ATA Mode 4 66.6 MB/s

the fastest writers only write at ((40x150k)/1024) = 6 megs per second.

Kosh · 09-05-2002

If you have an Epox 8kha+ .. like me ... the you need to get a BIOS upgrade for your MB.

The new BIOS will contain an option to enable UDMA support for CDROM drives.Which isn't enabled by default.

Before upgrading my BIOS I couldn't get my DVD or CD-RW to run in UDMA mode 2 either.

However .. this was a while ago... shortly after the 8KHA+ was available.

But make sure you are using the latest BIOS for your MB and the latest firmware for your Burner.

And make sure to check your BIOS for an option to enable UDMA on CDROM drives.

EDIT : typo

Deputy_1 · 09-05-2002

I tried all kinds of thing yesterday, but no luck .. i have the latest bios version for my Abit Kt7a, and have the UDMA option in bios set to Auto, i also tried this i found at another forum.... but no joy there ..

Open RegEdit

Find the following KEY

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E96A-E325-11CE-BFC1-08002BE10318}\000x

The last four digits will be 0000, 0001, 0002, 0003, and so on.

Under each key, delete all occurences of the following values:

MasterIdDataChecksum

SlaveIdDataChecksum.

Reboot the computer. Windows will now redetect DMA settings.

Kosh · 09-05-2002

Ok next thing to check is the IDE cable .. is it 80 pins .. designed for UDMA 66 etc.

Deputy_1 · 09-05-2002

yepp it´s a 80 pin cabel i have, so i´m begining to think my Cd-rw is to be operated in MW DMA 2...

rmunde · 10-05-2002

You might try deleting the ide controller from device manager and then re-starting. It might take more than one delete/restartg cycle. Worked for me on an Abit KT7 RAID.

Quote:

Originally posted by Deputy_1
yepp it´s a 80 pin cabel i have, so i´m begining to think my Cd-rw is to be operated in MW DMA 2...

**FutureProof** · 10-05-2002

This Acer is a UDMA device like the 1610A (I have one). Multiword DMA is no good because it's simply PIO Mode in disguise (well, very PIO Mode 'like' more words but still...), so it will hog the CPU. While it will never reach UDMA/ATA33 speeds, it's the mode of running (bypassing CPU), busmastering etc that's important.

You can manually change the setting - search for a post by PaRaDoX in the CloneCD Forum (I'm on an NT4 box ATM so I can't step you thorugh the process - maybe later if you can't find the thread)

Deputy_1 · 10-05-2002

Thanks rmunde And FutureProofe

I think i found the thred by PaRaDoX (if it´s the reeeealy long one), im rather sure that i can get my Cd-Rw to run faster than MW DMA 2 but than i have to install the VIA IDE miniport driver 3.14, and that is someting i have been adviced NOT to do (at viaharware forums). but i got some new things to try now so thanks !

// Deputy_1

**FutureProof** · 10-05-2002

I keep an eye on VIA Arena, like PaRaDoX does, and all VIA chipset drivers are now safe, since 4.33 anyway

Deputy_1 · 10-05-2002

Ahhhh now i don´t know aything

just recived an e-mail from ben-q (old Acer)..

"Dear Sir,

UltraDMA is not supported in the cdrewriter. DMA/2 MW is the maximum.

With Kind Regards,

BenQ Support"

I just saw a guy in another forum saying his ACER 1832A (10x8x32), (older than mine) works with UDMA ... strange

hehe.. i´l think im begining to give up

**FutureProof** · 11-05-2002

My 1610A is definately UDMA33:

enumerates as such in the POST (ATA33)
DMA enabled in Device manager (off MoBo channel)
and, shows as UDMA Mode 2 off my PCI ATA100 Card

nutsack · 12-05-2002

Weren't there some burners out there that needed a jumper to be set on the rear of the drive in order to enable UDMA?

Deputy_1 · 12-05-2002

hi !

yes I´v heard the samt thing but i dont have one on mine burner, just the regular jumpers ..

08-05-2002	#1 (permalink)
Deputy_1 New on Forum Join Date: May 2002 Posts: 6	MultiWord DMA 2 insted of UDAM 2 Hello there... maybe there is someone out there who knows this better than me.. i bought an Acer 2010A Cd-RW not so long ago, and my litle question is that in WinXP i can´t get i to run any higher than Multi Word DMA 2, i have looked at acer´s homepage and can´t fint anything about it´s max DMA transfer rate. But shall not almost every new Cd-rw run at UDMA 2. ? ? , does any of you have this Acer model and som more experience than me ? maybe i´m completly wrong... // Deputy_1

08-05-2002	#2 (permalink)
Mr. Belvedere CDFreaks Resident Join Date: Jun 2001 Location: married Posts: 14,682	The writer could be detected wrong. In that case remove it (and all other ide devices and drivers !) from the hardware properties and let windows re-detect it. also if your mobo has a via chipset , make sure to get the latest via drivers at www.viatech.com (4 in 1 drivers i thought). last : DMA Mode 2 at 16.6 MB/s Ultra ATA/33 at 33.3 MB/s Ultra ATA/66 at 66.6 MB/s Multi-word DMA Mode 1 13.3 MB/s Multi-word DMA Mode 2 16.6 MB/s Ultra ATA Mode 2 33.3 MB/s Ultra ATA Mode 4 66.6 MB/s the fastest writers only write at ((40x150k)/1024) = 6 megs per second. __________________ I might be evil. Want to make dvd movie backups? Take the 5-step or the 2-step process. Fun, fast and free!

09-05-2002	#4 (permalink)
Deputy_1 New on Forum Join Date: May 2002 Posts: 6	reply I tried all kinds of thing yesterday, but no luck .. i have the latest bios version for my Abit Kt7a, and have the UDMA option in bios set to Auto, i also tried this i found at another forum.... but no joy there .. Open RegEdit Find the following KEY HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E96A-E325-11CE-BFC1-08002BE10318}\000x The last four digits will be 0000, 0001, 0002, 0003, and so on. Under each key, delete all occurences of the following values: MasterIdDataChecksum SlaveIdDataChecksum. Reboot the computer. Windows will now redetect DMA settings.

10-05-2002	#8 (permalink)
FutureProof Senior Admin Join Date: Oct 2001 Location: True Blue Posts: 5,606	This Acer is a UDMA device like the 1610A (I have one). Multiword DMA is no good because it's simply PIO Mode in disguise (well, very PIO Mode 'like' more words but still...), so it will hog the CPU. While it will never reach UDMA/ATA33 speeds, it's the mode of running (bypassing CPU), busmastering etc that's important. You can manually change the setting - search for a post by PaRaDoX in the CloneCD Forum (I'm on an NT4 box ATM so I can't step you thorugh the process - maybe later if you can't find the thread) __________________ :ÐowN AsS ± ßû(r)NêR: Try our Search function > Words on Netiquette 24, 32, 40 & 52X Liteons, 16, 40, 48 & 52X ASUS', Ricoh MP7163A, Acer 1610A CD writers; Toshiba SD-M1402, Hitachi GD-7500 & Liteon LTD-163D DVD-ROMs; Toshiba SD-R1202 DVD-ROM/CD writer combo; NEC CloneDrive; Matshita DVD RAM/-R/-RW UJ-810 PEBKAC: Click here when asked AXDA3000DKV4D Atlhon 3000+ Model 10 Barton; Twin, Dual-Channeled Corsair CMX512-2700C2 @ 2-3-3-6-T1; GA-7N400 Pro F12; crappy vid card; Twin (base) WD2500JD drives There are two secrets to success: 1) Don't tell everyone everything There are 10 types of people who understand binary: those who do and those who don't Who Are YOU?

10-05-2002	#10 (permalink)
FutureProof Senior Admin Join Date: Oct 2001 Location: True Blue Posts: 5,606	I keep an eye on VIA Arena, like PaRaDoX does, and all VIA chipset drivers are now safe, since 4.33 anyway __________________ :ÐowN AsS ± ßû(r)NêR: Try our Search function > Words on Netiquette 24, 32, 40 & 52X Liteons, 16, 40, 48 & 52X ASUS', Ricoh MP7163A, Acer 1610A CD writers; Toshiba SD-M1402, Hitachi GD-7500 & Liteon LTD-163D DVD-ROMs; Toshiba SD-R1202 DVD-ROM/CD writer combo; NEC CloneDrive; Matshita DVD RAM/-R/-RW UJ-810 PEBKAC: Click here when asked AXDA3000DKV4D Atlhon 3000+ Model 10 Barton; Twin, Dual-Channeled Corsair CMX512-2700C2 @ 2-3-3-6-T1; GA-7N400 Pro F12; crappy vid card; Twin (base) WD2500JD drives There are two secrets to success: 1) Don't tell everyone everything There are 10 types of people who understand binary: those who do and those who don't Who Are YOU?

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09-05-2002	#3 (permalink)
Kosh CD Freaks Member Join Date: Mar 2000 Location: Aarhus, Denmark Posts: 217	If you have an Epox 8kha+ .. like me ... the you need to get a BIOS upgrade for your MB. The new BIOS will contain an option to enable UDMA support for CDROM drives.Which isn't enabled by default. Before upgrading my BIOS I couldn't get my DVD or CD-RW to run in UDMA mode 2 either. However .. this was a while ago... shortly after the 8KHA+ was available. But make sure you are using the latest BIOS for your MB and the latest firmware for your Burner. And make sure to check your BIOS for an option to enable UDMA on CDROM drives. EDIT : typo

09-05-2002	#5 (permalink)
Kosh CD Freaks Member Join Date: Mar 2000 Location: Aarhus, Denmark Posts: 217	Ok next thing to check is the IDE cable .. is it 80 pins .. designed for UDMA 66 etc.

09-05-2002	#6 (permalink)
Deputy_1 New on Forum Join Date: May 2002 Posts: 6	yepp it´s a 80 pin cabel i have, so i´m begining to think my Cd-rw is to be operated in MW DMA 2...

10-05-2002	#9 (permalink)
Deputy_1 New on Forum Join Date: May 2002 Posts: 6	Thanks rmunde And FutureProofe I think i found the thred by PaRaDoX (if it´s the reeeealy long one), im rather sure that i can get my Cd-Rw to run faster than MW DMA 2 but than i have to install the VIA IDE miniport driver 3.14, and that is someting i have been adviced NOT to do (at viaharware forums). but i got some new things to try now so thanks ! // Deputy_1

10-05-2002	#11 (permalink)
Deputy_1 New on Forum Join Date: May 2002 Posts: 6	Ahhhh now i don´t know aything just recived an e-mail from ben-q (old Acer).. "Dear Sir, UltraDMA is not supported in the cdrewriter. DMA/2 MW is the maximum. With Kind Regards, BenQ Support" I just saw a guy in another forum saying his ACER 1832A (10x8x32), (older than mine) works with UDMA ... strange hehe.. i´l think im begining to give up

11-05-2002	#12 (permalink)
FutureProof Senior Admin Join Date: Oct 2001 Location: True Blue Posts: 5,606	My 1610A is definately UDMA33: enumerates as such in the POST (ATA33) DMA enabled in Device manager (off MoBo channel) and, shows as UDMA Mode 2 off my PCI ATA100 Card __________________ :ÐowN AsS ± ßû(r)NêR: Try our Search function > Words on Netiquette 24, 32, 40 & 52X Liteons, 16, 40, 48 & 52X ASUS', Ricoh MP7163A, Acer 1610A CD writers; Toshiba SD-M1402, Hitachi GD-7500 & Liteon LTD-163D DVD-ROMs; Toshiba SD-R1202 DVD-ROM/CD writer combo; NEC CloneDrive; Matshita DVD RAM/-R/-RW UJ-810 PEBKAC: Click here when asked AXDA3000DKV4D Atlhon 3000+ Model 10 Barton; Twin, Dual-Channeled Corsair CMX512-2700C2 @ 2-3-3-6-T1; GA-7N400 Pro F12; crappy vid card; Twin (base) WD2500JD drives There are two secrets to success: 1) Don't tell everyone everything There are 10 types of people who understand binary: those who do and those who don't Who Are YOU?

12-05-2002	#13 (permalink)
nutsack CD Freaks Junior Member Join Date: Nov 2001 Location: Southern California, USA Posts: 79	Weren't there some burners out there that needed a jumper to be set on the rear of the drive in order to enable UDMA? __________________ “I was thinking of the immortal words of Socrates, who said, 'I drank what?'”

12-05-2002	#14 (permalink)
Deputy_1 New on Forum Join Date: May 2002 Posts: 6	hi ! yes I´v heard the samt thing but i dont have one on mine burner, just the regular jumpers ..

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