A hack, anyone, to turn on dma ?

My samsung sh-182f DVD writer has become horribly slow,
records at 1X max, even with 16X disks.
I cannot turn DMA on in the hardware manager.
Even my floppy drive has DMA ........
Must be a way. 6 hours hacking and nothing so far.
TIA
Apparently there is a registry/system entry that does not
allow DMA on a drive, but cannot find it. Neither on PC or on Google.
The drive had DMA a month ago, last time I checked.

"Shadow" sh@dow wrote in message
...
My samsung sh-182f DVD writer has become horribly slow,
records at 1X max, even with 16X disks.
I cannot turn DMA on in the hardware manager.
Even my floppy drive has DMA ........
Must be a way. 6 hours hacking and nothing so far.
TIA
Apparently there is a registry/system entry that does not
allow DMA on a drive, but cannot find it. Neither on PC or on Google.
The drive had DMA a month ago, last time I checked.

What processor/motherboard/chipset?

Have you checked the BIOS settings to see if they have changed?
Is UDMA enabled for the IDE channel the drive is on?

What happens when you try to enable DMA in Device Manager?
Are there any problems noted in Device Manager?

Drive Does Not Have a DMA Check Box:
http://support.microsoft.com/?kbid=229085

DMA Check Box Does Not Remain Checked:
http://support.microsoft.com/?kbid=159560

--
Glen Ventura, MS MVP Windows, A+
http://dts-l.net/
http://dts-l.net/goodpost.htm

Shadow wrote:
| My samsung sh-182f DVD writer has become horribly slow,
| records at 1X max, even with 16X disks.
| I cannot turn DMA on in the hardware manager.
| Even my floppy drive has DMA ........
| Must be a way. 6 hours hacking and nothing so far.
| TIA
| Apparently there is a registry/system entry that does not
| allow DMA on a drive, but cannot find it. Neither on PC or on Google.
| The drive had DMA a month ago, last time I checked.

If those URLs glee posted don't fix it...

(1) "START button, Run, MSInfo32, Components, Storage"
(2) Bolt "Advanced Information", &
use the Edit menu to post it.
(3) Bolt "History", use the mouse to highlight DVD information,
& use Ctlr-C to copy & post it.
(4) Click, copy & post "Problem Devices" too, if any.


--
Thanks or Good Luck,
There may be humor in this post, and,
Naturally, you will not sue,
Should things get worse after this,
PCR

On Tue, 24 Jun 2008 18:56:42 -0400, "PCR" wrote:

Shadow wrote:
| My samsung sh-182f DVD writer has become horribly slow,
| records at 1X max, even with 16X disks.
| I cannot turn DMA on in the hardware manager.
| Even my floppy drive has DMA ........
| Must be a way. 6 hours hacking and nothing so far.
| TIA
| Apparently there is a registry/system entry that does not
| allow DMA on a drive, but cannot find it. Neither on PC or on Google.
| The drive had DMA a month ago, last time I checked.

If those URLs glee posted don't fix it...

(1) "START button, Run, MSInfo32, Components, Storage"
(2) Bolt "Advanced Information", &
use the Edit menu to post it.

Controlador padrão de disquete
fdc
Chave do Registro: HKEY_LOCAL_MACHINE\enum\ACPI\*PNP0700\0
Recursos Alloc: Configuração lógica 0
IRQ: Máscara 6: x0000
DMA: Máscara 2: x0000
Intervalo de E/S: Base=x03F0 fim=x03F5
Alias=x00, decodificação=x00
Base=x03F7
Fim=x03F7 Alias=x00, decodificação=x00
Recursos Forçado: Nenhum
Recursos Inicializar: Configuração lógica 0
IRQ: Máscara 6: x0000
DMA: Máscara 2: x0000
Intervalo de E/S: Base=x03F0 fim=x03F5
Alias=x00, decodificação=x00
Base=x03F7
Fim=x03F7 Alias=x00, decodificação=x00
Recursos Filtrado: Configuração lógica 0
IRQ: Máscara 0: x0040
DMA: Máscara 0: x0004
Intervalo de E/S: Base=x0000 fim=x0000
Mín=x03F0 Máx=x03F5 Alias=x00, decodificação=x00
Base=x0000
Fim=x0000 Mín=x03F7 Máx=x03F7 Alias=x00, decodificação=x00
Configuração
lógica 1
IRQ: Máscara 0: x1CF8
DMA: Máscara 0: x000E
Intervalo de E/S: Base=x0000 fim=x0000
Mín=x03F0 Máx=x03F5 Alias=x00, decodificação=x00
Base=x0000
Fim=x0000 Mín=x03F7 Máx=x03F7 Alias=x00, decodificação=x00
Configuração
lógica 2
IRQ: Máscara 0: x1CF8
DMA: Máscara 0: x000E
Intervalo de E/S: Base=x0000 fim=x0000
Mín=x0370 Máx=x0375 Alias=x00, decodificação=x00
Base=x0000
Fim=x0000 Mín=x0377 Máx=x0377 Alias=x00, decodificação=x00
Recursos Básico: Configuração lógica 0
IRQ: Máscara 0: x0040
DMA: Máscara 0: x0004
Intervalo de E/S: Base=x0000 fim=x0000
Mín=x03F0 Máx=x03F5 Alias=x00, decodificação=x00
Base=x0000
Fim=x0000 Mín=x03F7 Máx=x03F7 Alias=x00, decodificação=x00
Configuração
lógica 1
IRQ: Máscara 0: x1CF8
DMA: Máscara 0: x000E
Intervalo de E/S: Base=x0000 fim=x0000
Mín=x03F0 Máx=x03F5 Alias=x00, decodificação=x00
Base=x0000
Fim=x0000 Mín=x03F7 Máx=x03F7 Alias=x00, decodificação=x00
Configuração
lógica 2
IRQ: Máscara 0: x1CF8
DMA: Máscara 0: x000E
Intervalo de E/S: Base=x0000 fim=x0000
Mín=x0370 Máx=x0375 Alias=x00, decodificação=x00
Base=x0000
Fim=x0000 Mín=x0377 Máx=x0377 Alias=x00, decodificação=x00
Driver: fdc\0000
Data do driver: 5- 5-1999
Driver: HSFLOP.pdr
Tamanho do
arquivo: 25741 (0x648D)
Data do
arquivo: 5/5/1999 10:22 PM
Nome da
empresa: Microsoft Corporation
Versão do
arquivo: 4.10.2222

VIA RAID Controller - 3149
SCSIAdapter
Chave do Registro:
HKEY_LOCAL_MACHINE\enum\PCI\VEN_1106&DEV_3149&SUBS YS_80ED1043&REV_80\BUS_00&DEV_0F&FUNC_00
Recursos Alloc: Configuração lógica 0
IRQ: Máscara 10: xFFFF
Intervalo de E/S: Base=xE800 fim=xE807
Mín=x0000 Máx=xFFFF Alias=xFF, decodificação=x00
Base=xE400
Fim=xE403 Mín=x0000 Máx=xFFFF Alias=xFF, decodificação=x00
Base=xE000
Fim=xE007 Mín=x0000 Máx=xFFFF Alias=xFF, decodificação=x00
Base=xD800
Fim=xD803 Mín=x0000 Máx=xFFFF Alias=xFF, decodificação=x00
Base=xD400
Fim=xD40F Mín=x0000 Máx=xFFFF Alias=xFF, decodificação=x00
Base=xD000
Fim=xD0FF Mín=x0000 Máx=xFFFF Alias=xFF, decodificação=x00
Recursos Forçado: Nenhum
Recursos Inicializar: Configuração lógica 0
Intervalo de E/S: Base=xE800 fim=xE807
Mín=x0000 Máx=xFFFF Alias=xFF, decodificação=x00
Base=xE400
Fim=xE403 Mín=x0000 Máx=xFFFF Alias=xFF, decodificação=x00
Base=xE000
Fim=xE007 Mín=x0000 Máx=xFFFF Alias=xFF, decodificação=x00
Base=xD800
Fim=xD803 Mín=x0000 Máx=xFFFF Alias=xFF, decodificação=x00
Base=xD400
Fim=xD40F Mín=x0000 Máx=xFFFF Alias=xFF, decodificação=x00
Base=xD000
Fim=xD0FF Mín=x0000 Máx=xFFFF Alias=xFF, decodificação=x00
Recursos Filtrado: Configuração lógica 0
IRQ: Máscara 10: xFFFF
Intervalo de E/S: Base=xE800 fim=xE807
Mín=x0000 Máx=xFFFF Alias=xFF, decodificação=x00
Base=xE400
Fim=xE403 Mín=x0000 Máx=xFFFF Alias=xFF, decodificação=x00
Base=xE000
Fim=xE007 Mín=x0000 Máx=xFFFF Alias=xFF, decodificação=x00
Base=xD800
Fim=xD803 Mín=x0000 Máx=xFFFF Alias=xFF, decodificação=x00
Base=xD400
Fim=xD40F Mín=x0000 Máx=xFFFF Alias=xFF, decodificação=x00
Base=xD000
Fim=xD0FF Mín=x0000 Máx=xFFFF Alias=xFF, decodificação=x00
Recursos Básico: Configuração lógica 0
IRQ: Máscara 0: xFFFF
Intervalo de E/S: Base=xE800 fim=xE807
Mín=x0000 Máx=xFFFF Alias=xFF, decodificação=x00
Base=xE400
Fim=xE403 Mín=x0000 Máx=xFFFF Alias=xFF, decodificação=x00
Base=xE000
Fim=xE007 Mín=x0000 Máx=xFFFF Alias=xFF, decodificação=x00
Base=xD800
Fim=xD803 Mín=x0000 Máx=xFFFF Alias=xFF, decodificação=x00
Base=xD400
Fim=xD40F Mín=x0000 Máx=xFFFF Alias=xFF, decodificação=x00
Base=xD000
Fim=xD0FF Mín=x0000 Máx=xFFFF Alias=xFF, decodificação=x00
Revisão do HW: 128
Driver: SCSIAdapter\0017
Data do driver: 12-20-2007
Driver: viamvsd.vxd
Tamanho do
arquivo: 13334 (0x3416)
Data do
arquivo: 11/23/2005 1:12 AM
Nome da
empresa: VIA Technologies, Inc.
Versão do
arquivo: 2.0.950.500
Driver: viamraid.mpd
Tamanho do
arquivo: 103533 (0x1946D)
Data do
arquivo: 12/20/2007 10:03 AM
Nome da
empresa: VIA Technologies inc,.ltd
Versão do
arquivo: 2.0.950.573

VIA Bus Master PCI IDE Controller
hdc
Chave do Registro:
HKEY_LOCAL_MACHINE\enum\PCI\VEN_1106&DEV_0571&SUBS YS_80ED1043&REV_06\BUS_00&DEV_0F&FUNC_01
Recursos Alloc: Configuração lógica 0
IRQ: Máscara 14: x4000
Máscara 15:
x8000
Intervalo de E/S: Base=x01F0 fim=x01F7
Mín=x01F0 Máx=x01F7 Alias=x04, decodificação=x03
Base=x03F6
Fim=x03F6 Mín=x03F6 Máx=x03F6 Alias=x04, decodificação=x03
Base=x0170
Fim=x0177 Mín=x0170 Máx=x0177 Alias=x04, decodificação=x03
Base=x0376
Fim=x0376 Mín=x0376 Máx=x0376 Alias=x04, decodificação=x03
Base=xFC00
Fim=xFC0F Mín=x0000 Máx=xFFFF Alias=xFF, decodificação=x00
Recursos Forçado: Nenhum
Recursos Inicializar: Configuração lógica 0
IRQ: Máscara 14: x4000
Máscara 15:
x8000
Intervalo de E/S: Base=x01F0 fim=x01F7
Mín=x01F0 Máx=x01F7 Alias=x04, decodificação=x03
Base=x03F6
Fim=x03F6 Mín=x03F6 Máx=x03F6 Alias=x04, decodificação=x03
Base=x0170
Fim=x0177 Mín=x0170 Máx=x0177 Alias=x04, decodificação=x03
Base=x0376
Fim=x0376 Mín=x0376 Máx=x0376 Alias=x04, decodificação=x03
Base=xFC00
Fim=xFC0F Mín=x0000 Máx=xFFFF Alias=xFF, decodificação=x00
Recursos Filtrado: Configuração lógica 0
IRQ: Máscara 14: x4000
Máscara 15:
x8000
Intervalo de E/S: Base=x01F0 fim=x01F7
Mín=x01F0 Máx=x01F7 Alias=x04, decodificação=x03
Base=x03F6
Fim=x03F6 Mín=x03F6 Máx=x03F6 Alias=x04, decodificação=x03
Base=x0170
Fim=x0177 Mín=x0170 Máx=x0177 Alias=x04, decodificação=x03
Base=x0376
Fim=x0376 Mín=x0376 Máx=x0376 Alias=x04, decodificação=x03
Base=xFC00
Fim=xFC0F Mín=x0000 Máx=xFFFF Alias=xFF, decodificação=x00
Recursos Básico: Configuração lógica 0
IRQ: Máscara 14: x4000
Máscara 15:
x8000
Intervalo de E/S: Base=x01F0 fim=x01F7
Mín=x01F0 Máx=x01F7 Alias=x04, decodificação=x03
Base=x03F6
Fim=x03F6 Mín=x03F6 Máx=x03F6 Alias=x04, decodificação=x03
Base=x0170
Fim=x0177 Mín=x0170 Máx=x0177 Alias=x04, decodificação=x03
Base=x0376
Fim=x0376 Mín=x0376 Máx=x0376 Alias=x04, decodificação=x03
Base=xFC00
Fim=xFC0F Mín=x0000 Máx=xFFFF Alias=xFF, decodificação=x00
Revisão do HW: 006
Driver: hdc\0000
Data do driver: 5- 5-1999
Driver: vatapi.vxd
Tamanho do
arquivo: 10937 (0x2AB9)
Data do
arquivo: 10/18/2001 12:00 PM
Nome da
empresa: VIA Technologies, Inc.
Versão do
arquivo: 2.0.950.120

Primary IDE controller (dual fifo)
hdc
Chave do Registro:
HKEY_LOCAL_MACHINE\enum\MF\CHILD0000\PCI&VEN_1106& DEV_0571&SUBSYS_80ED1043&REV_06&BUS_00&DEV_0F&FUNC _01
Recursos Alloc: Configuração lógica 0
IRQ: Máscara 14: x4000
Intervalo de E/S: Base=x01F0 fim=x01F7
Mín=x01F0 Máx=x01F7 Alias=x04, decodificação=x03
Base=x03F6
Fim=x03F6 Mín=x03F6 Máx=x03F6 Alias=x04, decodificação=x03
Base=xFC00
Fim=xFC07 Alias=xFF, decodificação=x00
Recursos Forçado: Nenhum
Recursos Inicializar: Nenhum
Recursos Filtrado: Nenhum
Recursos Básico: Nenhum
Driver: hdc\0001
Data do driver: 5- 5-1999
Driver: ESDI_506.pdr
Tamanho do
arquivo: 24406 (0x5F56)
Data do
arquivo: 5/5/1999 10:22 PM
Nome da
empresa: Microsoft Corporation
Versão do
arquivo: 4.10.2222

Secondary IDE controller (dual fifo)
hdc
Chave do Registro:
HKEY_LOCAL_MACHINE\enum\MF\CHILD0001\PCI&VEN_1106& DEV_0571&SUBSYS_80ED1043&REV_06&BUS_00&DEV_0F&FUNC _01
Recursos Alloc: Configuração lógica 0
IRQ: Máscara 15: x8000
Intervalo de E/S: Base=x0170 fim=x0177
Mín=x0170 Máx=x0177 Alias=x04, decodificação=x03
Base=x0376
Fim=x0376 Mín=x0376 Máx=x0376 Alias=x04, decodificação=x03
Base=xFC08
Fim=xFC0F Alias=xFF, decodificação=x00
Recursos Forçado: Nenhum
Recursos Inicializar: Nenhum
Recursos Filtrado: Nenhum
Recursos Básico: Nenhum
Driver: hdc\0002
Data do driver: 5- 5-1999
Driver: ESDI_506.pdr
Tamanho do
arquivo: 24406 (0x5F56)
Data do
arquivo: 5/5/1999 10:22 PM
Nome da
empresa: Microsoft Corporation
Versão do
arquivo: 4.10.2222

GENERIC IDE DISK TYPE47
DiskDrive
Chave do Registro:
HKEY_LOCAL_MACHINE\enum\ESDI\GENERIC_IDE__DISK_TYP E47_\MF&CHILD0000&PCI&VEN_1106&DEV_0571&SUBSYS_80E D1043&REV_06&BUS_00&DEV_0F&FUNC_0100
Recursos Alloc: Nenhum
Recursos Forçado: Nenhum
Recursos Inicializar: Nenhum
Recursos Filtrado: Nenhum
Recursos Básico: Nenhum
Letra da unidade atual: CDEFGH
Driver: DiskDrive\0000
Data do driver: 5- 5-1999

TSSTcorp CD/DVDW SH-S182F
CDROM
Chave do Registro:
HKEY_LOCAL_MACHINE\enum\SCSI\TSSTCORPCD/DVDW_SH-S182FS\MF&CHILD0001&PCI&VEN_1106&DEV_0571&SUBSYS_8 0ED1043&REV_06&BUS_00&DEV_0F&FUNC_0100
Recursos Alloc: Nenhum
Recursos Forçado: Nenhum
Recursos Inicializar: Nenhum
Recursos Filtrado: Nenhum
Recursos Básico: Nenhum
Driver: CDROM\0000
Data do driver: 5- 5-1999

GENERIC NEC FLOPPY DISK
DiskDrive
Chave do Registro:
HKEY_LOCAL_MACHINE\enum\FLOP\GENERIC_NEC__FLOPPY_D ISK_\ACPI&*PNP0700&000
Recursos Alloc: Nenhum
Recursos Forçado: Nenhum
Recursos Inicializar: Nenhum
Recursos Filtrado: Nenhum
Recursos Básico: Nenhum
Letra da unidade atual: A
Driver: DiskDrive\0001
Data do driver: 5- 5-1999


(3) Bolt "History", use the mouse to highlight DVD information,
& use Ctlr-C to copy & post it.
TSSTcorp CD/DVDW SH-S182F
Configuração original Tue Jun 24 22:06:37 2008 para Date
Recursos Alloc: Nenhum


(4) Click, copy & post "Problem Devices" too, if any.
None

On Tue, 24 Jun 2008 14:55:36 -0400, "glee"
wrote:

"Shadow" sh@dow wrote in message
.. .
My samsung sh-182f DVD writer has become horribly slow,
records at 1X max, even with 16X disks.
I cannot turn DMA on in the hardware manager.
Even my floppy drive has DMA ........
Must be a way. 6 hours hacking and nothing so far.
TIA
Apparently there is a registry/system entry that does not
allow DMA on a drive, but cannot find it. Neither on PC or on Google.
The drive had DMA a month ago, last time I checked.

What processor/motherboard/chipset?
Manufacturer ASUSTeK Computer Inc.
Model K8V-MX
Version 3.01G

Chipset Vendor VIA Technologies Inc
Chipset Model K8M400 CPU to PCI Bridge
South Bridge VT8237 PCI to ISA Bridge
SMBus VIA Technologies Inc VT8237 PCI to ISA Bridge @0400h

CPU AMD Sempron 2600+
Cpu Socket Socket 754
Max CPU Speed 1600 MHz

Have you checked the BIOS settings to see if they have changed?
Yes. Don't think so.

Is UDMA enabled for the IDE channel the drive is on?
In the BIOS ? Yes.

What happens when you try to enable DMA in Device Manager?
The box does not stay ticked, even without a reboot.
Are there any problems noted in Device Manager?
Nope
Drive Does Not Have a DMA Check Box:
http://support.microsoft.com/?kbid=229085
Mine does

DMA Check Box Does Not Remain Checked:
http://support.microsoft.com/?kbid=159560
Debug ? OK, here we go:

o 176 a0 ; a0 (a-zero) is for a master drive, use b0 for a slave.
o 172 22 ; 22 is for DMA mode 2, use 21 for DMA mode 1.
o 171 03 ; 03 (zero-3) is to program the hard disk timing.
o 177 ef ; ef is the set feature command for the hard disk.
i 171 ; Reads in the error status; a value is returned.

Got 00 for anything from 21 to 25 in line 2
So the drive accepts up to dma 5
dma 6 returned a 04 error

So my bus-mastering driver has gone bad. But I tried the via
434, 456, and 517 before posting this plea for help.

Any suggestions ?

"Shadow" sh@dow wrote in message
...
On Tue, 24 Jun 2008 14:55:36 -0400, "glee"
wrote:

"Shadow" sh@dow wrote in message
. ..
My samsung sh-182f DVD writer has become horribly slow,
records at 1X max, even with 16X disks.
I cannot turn DMA on in the hardware manager.
Even my floppy drive has DMA ........
Must be a way. 6 hours hacking and nothing so far.
TIA
Apparently there is a registry/system entry that does not
allow DMA on a drive, but cannot find it. Neither on PC or on Google.
The drive had DMA a month ago, last time I checked.

What processor/motherboard/chipset?
Manufacturer ASUSTeK Computer Inc.
Model K8V-MX
Version 3.01G

Chipset Vendor VIA Technologies Inc
Chipset Model K8M400 CPU to PCI Bridge
South Bridge VT8237 PCI to ISA Bridge
SMBus VIA Technologies Inc VT8237 PCI to ISA Bridge @0400h

CPU AMD Sempron 2600+
Cpu Socket Socket 754
Max CPU Speed 1600 MHz

Have you checked the BIOS settings to see if they have changed?
Yes. Don't think so.

Is UDMA enabled for the IDE channel the drive is on?
In the BIOS ? Yes.

What happens when you try to enable DMA in Device Manager?
The box does not stay ticked, even without a reboot.
Are there any problems noted in Device Manager?
Nope
Drive Does Not Have a DMA Check Box:
http://support.microsoft.com/?kbid=229085
Mine does

DMA Check Box Does Not Remain Checked:
http://support.microsoft.com/?kbid=159560
Debug ? OK, here we go:

o 176 a0 ; a0 (a-zero) is for a master drive, use b0 for a slave.
o 172 22 ; 22 is for DMA mode 2, use 21 for DMA mode 1.
o 171 03 ; 03 (zero-3) is to program the hard disk timing.
o 177 ef ; ef is the set feature command for the hard disk.
i 171 ; Reads in the error status; a value is returned.

Got 00 for anything from 21 to 25 in line 2
So the drive accepts up to dma 5
dma 6 returned a 04 error

So my bus-mastering driver has gone bad. But I tried the via
434, 456, and 517 before posting this plea for help.

Any suggestions ?

Suggestions? Sure.

Open Device Manager, select the top entry (Computer icon), and click the Properties
button.
This will display the IRQ settings.
Select Direct Memory Access(DMA) to view devices using DMA Channels.
What DMA Channels are in use?

There are 8 DMA channels but one is used by the DMA controller so 7 are available
for devices.
Tell us what device is using each channel.


Uninstall the Via chipset drivers (4-in-1 driver).
Reboot.
Then restart in Safe Mode.
Open Device Manager, remove all items in the CDROM category, remove all items in the
Hard disk drives category, and remove the VIA Bus Master PCI IDE Controller in the
Hard disk controller category.
Restart in normal mode, let Windows redetect both the primary and secondary IDE
controllers, then reboot and install the Via 4-in-1 drivers.

If that does not help, replace the IDE ribbon cable attached to the DVD drive with a
new one no more than 18" long.
Repeat the above steps if needed.


In looking at the info you posted in reply to PCR, I notice you have viamvsd.vxd and
VIAmraid.mpd installed. Those are Via RAID controller drivers....are you using the
RAID controllers? If not, why are you enabling them and installing drivers?
--
Glen Ventura, MS MVP Windows, A+
http://dts-l.net/
http://dts-l.net/goodpost.htm

On Tue, 24 Jun 2008 23:37:58 -0400, "glee"
wrote:

"Shadow" sh@dow wrote in message
.. .
On Tue, 24 Jun 2008 14:55:36 -0400, "glee"
wrote:

Open Device Manager, select the top entry (Computer icon), and click the Properties
button.
There are 8 DMA channels but one is used by the DMA controller so 7 are available
for devices.
Tell us what device is using each channel.
0 (livre)
1 (livre)
2 Controlador padrão de disquete
3 (livre)
4 Controlador de acesso direto à memória
5 (livre)
6 (livre)
7 (livre)


Uninstall the Via chipset drivers (4-in-1 driver).
ok
Reboot.
Then restart in Safe Mode
ok
Open Device Manager, remove all items in the CDROM category, remove all items in the
Hard disk drives category, and remove the VIA Bus Master PCI IDE Controller in the
Hard disk controller category.
done
Restart in normal mode, let Windows redetect both the primary and secondary IDE
controllers, then reboot and install the Via 4-in-1 drivers.
done
nothing changed

If that does not help, replace the IDE ribbon cable attached to the DVD drive with a
new one no more than 18" long.
done
Repeat the above steps if needed.
done ...still the same


In looking at the info you posted in reply to PCR, I notice you have viamvsd.vxd and
VIAmraid.mpd installed. Those are Via RAID controller drivers....are you using the
RAID controllers? If not, why are you enabling them and installing drivers?
No idea. Maybe some driver came with the disk. I see nothing
about raid in the bios.

When I enable dma in device manager, it writes this :
[HKEY_LOCAL_MACHINE\System\CurrentControlSet\Servic es\Class\hdc\0002]
"DevLoader"="*IOS"
"DriverDesc"="Secondary IDE controller (dual fifo)"
"InfPath"="VIAVSD.INF"
"InfSection"="VIAIDE"
"PortDriver"="ESDI_506.pdr"
"ProviderName"="Microsoft"
"DriverDate"="2001\\10\\18"
"IDEDMADRIVE0"=hex:01
"IDEDMADRIVE1"=hex:01
"AutoInsertNotificationDrive0"=hex:01


Does that look ok to you ?

On Tue, 24 Jun 2008 23:37:58 -0400, "glee"
put finger to keyboard and composed:

Open Device Manager, select the top entry (Computer icon), and click the Properties
button.
This will display the IRQ settings.
Select Direct Memory Access(DMA) to view devices using DMA Channels.
What DMA Channels are in use?

There are 8 DMA channels but one is used by the DMA controller so 7 are available
for devices.
Tell us what device is using each channel.

My understanding is that IDE devices connect to a "bus mastering"
controller which accesses system memory directly rather than by using
the motherboard's DMA controller chip. Hence Device Manager will not
show any DMA channels for the hard disc controller.

See http://en.wikipedia.org/wiki/Direct_memory_access

================================================== ===================
A DMA transfer essentially copies a block of memory from one device to
another. While the CPU initiates the transfer, it does not execute it.
For so-called "third party" DMA, as is normally used with the ISA bus,
the transfer is performed by a DMA controller which is typically part
of the motherboard chipset. More advanced bus designs such as PCI
typically use bus mastering DMA, where the device takes control of the
bus and performs the transfer itself.
================================================== ===================

- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.

"Shadow" sh@dow wrote in message
...

When I enable dma in device manager, it writes this :
[HKEY_LOCAL_MACHINE\System\CurrentControlSet\Servic es\Class\hdc\0002]
"DevLoader"="*IOS"
"DriverDesc"="Secondary IDE controller (dual fifo)"
"InfPath"="VIAVSD.INF"
"InfSection"="VIAIDE"
"PortDriver"="ESDI_506.pdr"
"ProviderName"="Microsoft"
"DriverDate"="2001\\10\\18"
"IDEDMADRIVE0"=hex:01
"IDEDMADRIVE1"=hex:01
"AutoInsertNotificationDrive0"=hex:01


Does that look ok to you ?

Yes. It shows DMA enabled for both Secondary IDE Channels. I am starting to think
the drive itself is going bad.
--
Glen Ventura, MS MVP Shell/User, A+
http://dts-l.net/
http://dts-l.net/goodpost.htm

On Tue, 24 Jun 2008 23:37:58 -0400, "glee"
put finger to keyboard and composed:

Open Device Manager, select the top entry (Computer icon), and click the Properties
button.
This will display the IRQ settings.
Select Direct Memory Access(DMA) to view devices using DMA Channels.
What DMA Channels are in use?

There are 8 DMA channels but one is used by the DMA controller so 7 are available
for devices.
Tell us what device is using each channel.

According to IBM's Technical Reference manual for the PC AT, the
original AT had two DMA controllers (Intel 8237A-5) which could each
handle four DMA channels. As was the case with its two interrupt
controllers, the output of the first DMA controller was cascaded into
the second DMA controller.

The manual states that "DMA channels 0,1,2, and 3 are used for 8-bit
data transfers, and channels 5,6, and 7 process 16-bit transfers.
Channel 4 is used to cascade channels 0 through 3 to the
microprocessor".

So what you are seeing as "04 Direct memory access controller" in the
DMA resource list under Computer Properties in DM is in fact the
cascaded output of DMA controller #1.

- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.