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Old 02-24-2011, 02:53 PM   #1
floppy_stuttgart
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DMA2 instead of DMA3 despite BIOS recognizing DMA3


Hello,
I have on my old PC 2 HDDs.
Both are recognized as ATA66 (DMA3) in the BIOS.
During booting with TinyCoreLinux, one HDD is recognized with DMA3. But the other one (in this case the slave, which is on the same IDE flat harness for both HDDs, 80wires 40pins) is recognized as DMA2 (ATA33).
Somebody know what should be done in order to have both with DMA3?
Thanks

MoBo K6XV3+/66 rev BB+
AMD K6-3 400ATZ (5,5x100 @1,75v)
BIOS from 2001 (Betaversion)
 
Old 02-24-2011, 04:00 PM   #2
jefro
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Can you put slave on other ide channel and retest? Be sure you have best quality cables. Any doubt get new ones.
 
Old 02-25-2011, 11:48 AM   #3
onebuck
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Hi,

I would check the drives by doing from the cli;
Code:
~#hdparm -I /dev/your_dev
If your hard disk are '/dev/hda' & '/dev/hdb' then use that as the replacement for '/dev/your_device'. Plus note the case of' 'I' and the difference between using 'i' or 'I' in the below excerpt.

Quote:
excerpt from 'man hdparm';
-i Display the identification info which the kernel drivers (IDE, libata) have stored from boot/configuration time. This may
differ from the current information obtainable directly from the drive itself with the -I flag. The data returned may or
may not be current, depending on activity since booting the system. For a more detailed interpretation of the identifica-
tion info, refer to AT Attachment Interface for Disk Drives, ANSI ASC X3T9.2 working draft, revision 4a, April 19/93, and
later editions.

-I Request identification info directly from the drive, which is displayed in a new expanded format with considerably more
detail than with the older -i flag.
What does the output show for both devices?
 
Old 03-06-2011, 08:03 AM   #4
floppy_stuttgart
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after I received an UDMA100 harness and have my pc only with 80wiredharnesses, the output of the devices with the command is:

/dev/hda:


ATA device, with non-removable media
Model Number: WD102AA
Serial Number:
Firmware Revision:
Standards:
Supported: 4 3 2 1
Likely used: 5
Configuration:
Logical max current
cylinders 16383 16383
heads 16 16
sectors/track 63 63
--
bytes/track: 57600 bytes/sector: 600
CHS current addressable sectors: 16514064
LBA user addressable sectors: 20044080
device size with M = 1024*1024: 9787 MBytes
device size with M = 1000*1000: 10262 MBytes (10 GB)
Capabilities:
LBA, IORDY(can be disabled)
Buffer size: 2048.0kB
bytes avail on r/w long: 40
Queue depth: 1
Standby timer values: spec'd by standard, with device specific minimum
R/W multiple sector transfer: Max = 16 Current = 16
DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 *udma4
Cycle time: min=120ns recommended=120ns
PIO: pio0 pio1 pio2 pio3 pio4
Cycle time: no flow control=120ns IORDY flow control=120ns
Commands/features:
Enabled Supported:
* READ BUFFER cmd
* WRITE BUFFER cmd
* Host Protected Area feature set
* Look-ahead
* Write cache
* Power Management feature set
SMART feature set
* DOWNLOAD MICROCODE cmd
HW reset results:
CBLID- above Vih
Device num = 0 determined by the jumper



/dev/hdb:

ATA device, with non-removable media
Model Number: FIREBALL CR6.4A
Serial Number:
Firmware Revision:
Standards:
Used: ATA/ATAPI-4 T13 1153D rev.15
Supported: 4 3 2 1
Configuration:
Logical max current
cylinders 13328 13328
heads 15 15
sectors/track 63 63
--
bytes/track: 32256 bytes/sector: 21298
CHS current addressable sectors: 12594960
LBA user addressable sectors: 12594960
device size with M = 1024*1024: 6149 MBytes
device size with M = 1000*1000: 6448 MBytes (6 GB)
Capabilities:
LBA, IORDY(can be disabled)
Buffer size: 418.0kB
bytes avail on r/w long: 4
Queue depth: 1
Standby timer values: spec'd by vendor, no device specific minimum
R/W multiple sector transfer: Max = 16 Current = 16
DMA: mdma0 mdma1 mdma2 udma0 udma1 *udma2 udma3 udma4
Cycle time: min=120ns recommended=120ns
PIO: pio0 pio1 pio2 pio3 pio4
Cycle time: no flow control=120ns IORDY flow control=120ns
Commands/features:
Enabled Supported:
* READ BUFFER cmd
* WRITE BUFFER cmd
* Host Protected Area feature set
* Look-ahead
* Write cache
* Power Management feature set
SMART feature set
* DOWNLOAD MICROCODE cmd

/dev/hdd:

CompactFlash ATA device, with removable media
Model Number: SDCFH-008G
Serial Number: BJZ110110201628
Firmware Revision: 6.03
Standards:
Likely used: 6
Configuration:
Logical max current
cylinders 15501 15501
heads 16 16
sectors/track 63 63
--
CHS current addressable sectors: 15625008
LBA user addressable sectors: 15625216
LBA48 user addressable sectors: 15625216
device size with M = 1024*1024: 7629 MBytes
device size with M = 1000*1000: 8000 MBytes (8 GB)
Capabilities:
LBA, IORDY(may be)(cannot be disabled)
bytes avail on r/w long: 4
Queue depth: 1
Standby timer values: spec'd by standard
R/W multiple sector transfer: Max = 1 Current = 0
AdvancedPM level: unknown setting (0x0000)
DMA: mdma0 mdma1 mdma2 udma0 udma1 *udma2 udma3 udma4
Cycle time: min=120ns recommended=120ns
PIO: pio0 pio1 pio2 pio3 pio4
Cycle time: no flow control=120ns IORDY flow control=120ns
Commands/features:
Enabled Supported:
* NOP cmd
* READ BUFFER cmd
* WRITE BUFFER cmd
* Write cache
FLUSH CACHE EXT cmd
Mandatory FLUSH CACHE cmd
* 48-bit Address feature set
Adv. Power Management feature set
* CFA feature set
CFA power mode 1:
enabled
Maximum current = 500ma


Any Idea how to get UDMA4 for all 3 IDE devices?



And the whole hardware list is (just in case):

oldboy1
description: Computer
product: VT82C597
vendor: VIA Technologies, Inc.
width: 32 bits
capabilities: smbios-2.1 dmi-2.1
configuration: boot=normal
*-core
description: Motherboard
product: VP3-596B-DD
physical id: 0
*-firmware
description: BIOS
vendor: Award Software International, Inc.
physical id: 0
version: 4.51 PG
date: 04/18/01
size: 128KiB
capacity: 192KiB
capabilities: isa pci pnp apm upgrade shadowing escd cdboot bootselect socketedrom edd int13floppy360 int13floppy1200 int13floppy720 int13floppy2880 int5printscreen int9keyboard int14serial int17printer int10video acpi usb agp ls120boot zipboot biosbootspecification
*-cpu
description: CPU
product: AMD-K6(tm)-III Processor
vendor: Hynix Semiconductor (Hyundai Electronics)
physical id: 4
bus info: cpu@0
version: 5.13.0
slot: Socket 7
size: 550MHz
width: 32 bits
clock: 100MHz
capabilities: fpu fpu_exception wp vme de pse tsc msr cx8 pge mmx syscall 3dnowext 3dnow k6_mtrr up
*-cache:0
description: L1 cache
physical id: 0
size: 64KiB
*-cache:1
description: L2 cache
physical id: 1
size: 256KiB
*-cache:0
description: L1 cache
physical id: c
slot: Internal Cache
size: 64KiB
capacity: 64KiB
capabilities: synchronous internal write-back
*-cache:1
description: L2 cache
physical id: d
slot: External Cache
size: 512KiB
capacity: 2MiB
capabilities: synchronous external write-through
*-memory
description: System Memory
physical id: 21
slot: System board or motherboard
size: 768MiB
*-bank:0
description: DIMM EDRAM
physical id: 0
slot: BANK_0
size: 128MiB
*-bank:1
description: DIMM EDRAM
physical id: 1
slot: BANK_1
size: 128MiB
*-bank:2
description: DIMM EDRAM
physical id: 2
slot: BANK_2
size: 128MiB
*-bank:3
description: DIMM EDRAM
physical id: 3
slot: BANK_3
size: 128MiB
*-bank:4
description: DIMM EDRAM
physical id: 4
slot: BANK_4
size: 128MiB
*-bank:5
description: DIMM EDRAM
physical id: 5
slot: BANK_5
size: 128MiB
*-pci:0
physical id: 100
bus info: pci@0000:00:00.0
version: 04
width: 32 bits
clock: 33MHz
configuration: driver=agpgart-via
resources: irq:0 memory:d8000000-dbffffff(prefetchable)
*-pci
physical id: 1
bus info: pci@0000:00:01.0
version: 00
width: 32 bits
clock: 66MHz
capabilities: pci bus_master
resources: memory:dc000000-dfffffff memory:e0000000-e1ffffff(prefetchable)
*-display UNCLAIMED
physical id: 0
bus info: pci@0000:01:00.0
version: 04
width: 32 bits
clock: 33MHz
capabilities: pm agp agp-2.0 bus_master cap_list
configuration: latency=32 maxlatency=32 mingnt=16
resources: memory:e0000000-e1ffffff(prefetchable) memory:dc000000-dc003fff memory:dd000000-dd7fffff memory:dc010000-dc01ffff(prefetchable)
*-isa
physical id: 7
bus info: pci@0000:00:07.0
version: 12
width: 32 bits
clock: 33MHz
capabilities: isa bus_master
configuration: latency=0
*-ide
physical id: 7.1
bus info: pci@0000:00:07.1
version: 06
width: 32 bits
clock: 33MHz
capabilities: ide bus_master
configuration: driver=VIA_IDE latency=32
resources: irq:0 ioport:1f0(size=8) ioport:3f6 ioport:170(size=8) ioport:376 ioport:c000(size=16)
*-ide:0
description: IDE Channel 0
physical id: 0
bus info: ide@0
logical name: ide0
clock: 33MHz
*-disk:0
description: ATA Disk
product: WDC WD102AA
vendor: Western Digital
physical id: 0
bus info: ide@0.0
logical name: /dev/hda
version: 05.05B05
serial: WD-WMA0M1730077
size: 9787MiB (10GB)
capacity: 9787MiB (10GB)
capabilities: ata dma lba iordy smart pm partitioned partitioned:dos
configuration: mode=udma4 signature=790332d1 smart=on
*-volume:0
description: EXT3 volume
vendor: Linux
physical id: 1
bus info: ide@0.0,1
logical name: /dev/hda1
version: 1.0
serial: 5bd8e99b-22bc-480c-8099-ffdd2fdd8087
size: 5977MiB
capacity: 5977MiB
capabilities: primary journaled extended_attributes large_files ext3 ext2 initialized
configuration: created=2011-01-25 23:34:40 filesystem=ext3 lastmountpoint=/mnt/hda1 modified=2011-03-06 10:57:25 mounted=2011-03-06 10:57:25 state=clean
*-volume:1
description: EXT3 volume
vendor: Linux
physical id: 2
bus info: ide@0.0,2
logical name: /dev/hda2
version: 1.0
serial: 8ca44759-f403-4e26-afd8-5bb1a935194d
size: 2502MiB
capacity: 2502MiB
capabilities: primary bootable journaled extended_attributes large_files ext3 ext2 initialized
configuration: created=2011-01-04 14:11:21 filesystem=ext3 lastmountpoint=/mnt/hda2 modified=2011-03-06 10:57:26 mounted=2011-03-06 10:57:26 state=clean
*-volume:2
description: EXT3 volume
vendor: Linux
physical id: 3
bus info: ide@0.0,3
logical name: /dev/hda3
version: 1.0
serial: 10f8ad00-ff54-4732-b5db-c7fb7ac1ce3c
size: 1302MiB
capacity: 1302MiB
capabilities: primary journaled extended_attributes large_files ext3 ext2 initialized
configuration: created=2011-01-04 14:11:35 filesystem=ext3 lastmountpoint=/mnt/hda3 modified=2011-03-06 10:57:26 mounted=2011-03-06 10:57:26 state=clean
*-disk:1
description: ATA Disk
product: QUANTUM FIREBALL CR6.4A
vendor: Quantum
physical id: 1
bus info: ide@0.1
logical name: /dev/hdb
version: A5U.0200
serial: 826914242608
size: 6149MiB (6448MB)
capacity: 6149MiB (6448MB)
capabilities: ata dma lba iordy smart pm partitioned partitioned:dos
configuration: mode=udma2 signature=000727e2 smart=on
*-volume:0
description: EXT3 volume
vendor: Linux
physical id: 1
bus info: ide@0.1,1
logical name: /dev/hdb1
version: 1.0
serial: 637bdc66-1154-40d9-a0d1-41fda4c8fcd6
size: 103MiB
capacity: 103MiB
capabilities: primary bootable journaled extended_attributes large_files ext3 ext2 initialized
configuration: created=2010-12-01 21:06:53 filesystem=ext3 lastmountpoint=/mnt/hdb1 modified=2011-03-06 10:57:26 mounted=2011-03-06 10:57:26 state=clean
*-volume:1
description: Linux swap volume
physical id: 2
bus info: ide@0.1,2
logical name: /dev/hdb2
version: 1
serial: df24cc27-b3ad-470c-a800-ebee0afd4a9e
size: 95MiB
capacity: 95MiB
capabilities: primary nofs swap initialized
configuration: filesystem=swap pagesize=4096
*-volume:2
description: EXT3 volume
vendor: Linux
physical id: 3
bus info: ide@0.1,3
logical name: /dev/hdb3
logical name: /mnt/hdb3
logical name: /home
logical name: /opt
version: 1.0
serial: ca28dafb-6f41-48c1-b6b9-4290951e9e23
size: 5950MiB
capacity: 5950MiB
capabilities: primary journaled extended_attributes large_files recover ext3 ext2 initialized
configuration: created=2010-12-01 21:07:24 filesystem=ext3 lastmountpoint=/opt modified=2011-03-06 11:11:04 mount.fstype=ext3 mount.options=rw,relatime,barrier=1,data=ordered mounted=2011-03-06 11:11:04 state=mounted
*-ide:1
description: IDE Channel 1
physical id: 1
bus info: ide@1
logical name: ide1
clock: 33MHz
*-disk
product: SanDisk SDCFH-008G
physical id: 1
bus info: ide@1.1
logical name: /dev/hdd
capacity: 7629MiB (8GB)
capabilities: packet
*-usb:0
physical id: 7.2
bus info: pci@0000:00:07.2
version: 08
width: 32 bits
clock: 33MHz
capabilities: bus_master
configuration: driver=uhci_hcd latency=32
resources: irq:11 ioport:c400(size=32)
*-network
description: Ethernet interface
physical id: 11
bus info: pci@0000:00:11.0
logical name: eth0
version: 10
serial: 00:10:a7:19:59:e7
size: 100Mbit/s
capacity: 100Mbit/s
width: 32 bits
clock: 33MHz
capabilities: pm bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=8139too driverversion=0.9.28 duplex=full ip=192.168.178.49 latency=32 link=yes maxlatency=64 mingnt=32 multicast=yes port=MII speed=100Mbit/s
resources: irq:11 ioport:c800(size=256) memory:e3003000-e30030ff
*-multimedia
physical id: 12
bus info: pci@0000:00:12.0
version: 08
width: 32 bits
clock: 33MHz
capabilities: pm bus_master cap_list
configuration: driver=ENS1371 latency=32 maxlatency=128 mingnt=12
resources: irq:5 ioport:cc00(size=64)
*-usb:1
physical id: 13
bus info: pci@0000:00:13.0
version: 43
width: 32 bits
clock: 33MHz
capabilities: pm bus_master cap_list
configuration: driver=ohci_hcd latency=32 maxlatency=42 mingnt=1
resources: irq:10 memory:e3000000-e3000fff
*-usb:2
physical id: 13.1
bus info: pci@0000:00:13.1
version: 43
width: 32 bits
clock: 33MHz
capabilities: pm bus_master cap_list
configuration: driver=ohci_hcd latency=32 maxlatency=42 mingnt=1
resources: irq:11 memory:e3001000-e3001fff
*-usb:3
physical id: 13.2
bus info: pci@0000:00:13.2
version: 04
width: 32 bits
clock: 33MHz
capabilities: pm bus_master cap_list
configuration: driver=ehci_hcd latency=32 maxlatency=34 mingnt=16
resources: irq:11 memory:e3002000-e30020ff
*-storage
physical id: 14
bus info: pci@0000:00:14.0
logical name: scsi2
version: 50
width: 32 bits
clock: 33MHz
capabilities: storage pm bus_master cap_list rom emulated
configuration: driver=sata_via latency=32
resources: irq:11 ioport:d000(size=16) ioport:d400(size=16) ioport:d800(size=16) ioport:dc00(size=16) ioport:e000(size=32) ioport:e400(size=256) memory:e2000000-e200ffff(prefetchable)
*-disk
description: ATA Disk
product: Memory Card Adap
physical id: 0.0.0
bus info: scsi@2:0.0.0
logical name: /dev/sda
version: 6728
serial: 0
size: 7640MiB (8011MB)
capabilities: removable
configuration: ansiversion=5
*-medium
physical id: 0
logical name: /dev/sda
size: 7640MiB (8011MB)
capabilities: partitioned partitioned:dos
*-volume
description: Windows FAT volume
vendor: mkdosfs
physical id: 1
logical name: /dev/sda1
version: FAT32
serial: 6348-3dc6
size: 7635MiB
capacity: 7636MiB
capabilities: primary fat initialized
configuration: FATs=2 filesystem=fat label=8GB_Uhl_3
*-pci:1
physical id: 101
bus info: pci@0000:00:07.3
version: 20
width: 32 bits
clock: 33MHz
*-scsi
physical id: 1
bus info: usb@1:3.3
logical name: scsi3
capabilities: emulated scsi-host
configuration: driver=usb-storage
*-disk:0
description: SCSI Disk
physical id: 0.0.0
bus info: scsi@3:0.0.0
logical name: /dev/sdb
*-disk:1
description: SCSI Disk
physical id: 0.0.1
bus info: scsi@3:0.0.1
logical name: /dev/sdc
*-disk:2
description: SCSI Disk
physical id: 0.0.2
bus info: scsi@3:0.0.2
logical name: /dev/sdd
*-disk:3
description: SCSI Disk
product: MS/MS-Pro
vendor: Generic-
physical id: 0.0.3
bus info: scsi@3:0.0.3
logical name: /dev/sde
version: 1.03
serial: 3
capabilities: removable
*-medium
physical id: 0
logical name: /dev/sde
*-network DISABLED
description: Ethernet interface
physical id: 1
logical name: dummy0
serial: 12:47:2d:a2:29:77
capabilities: ethernet physical
configuration: broadcast=yes
 
Old 03-06-2011, 09:08 AM   #5
onebuck
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Hi,

Notice the asterisk beside the DMA assignment? You should be able to set the DMA on that drive below the current setting. If you attempt anything beyond that then you will have trouble with that drive. The asterisk denotes the DMA state that can be handled by the drive. Check your manufacture specifications for the drive in question to be sure of the DMA capabilities for the drive. You possibly could have an errant report for the HDD.

FYI: You should learn to use the vbcode tags # or Quote. By placing long lists of data within the vbcode tags the post will be cleaner therefore easier to read.
 
Old 03-07-2011, 12:40 PM   #6
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Quote:
Originally Posted by onebuck View Post
Hi,
Check your manufacture specifications for the drive in question to be sure of the DMA capabilities for the drive. You possibly could have an errant report for the HDD.
for the Quantum Fireball 6.4CR: ATA/66
for the WD 10GB: UDMA66
 
Old 03-07-2011, 02:03 PM   #7
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Not quite what you want to hear, and not quite the same motherboard, but I know the K6BV3+/66 had a warning in the manual along the lines of "drives from different manufacturers may not work properly together. The problem is the drives, not the motherboard".

Since the K6XV3+/66 is the same chipset, I wouldnt be supirised if the same is true for it as well (that is saying that its a chipset issue though).

Last edited by cascade9; 03-08-2011 at 01:40 PM. Reason: typo
 
Old 03-10-2011, 05:05 PM   #8
floppy_stuttgart
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Thanks for the recommendation.
I discovered (complementary to all recommendations here) in the manual for the linux kernel code "IDE"
- harness > 40 wires for udma > 2
- drivers of the same HDD type can be on the same harness (different HDDs on different harness)
- if only 1 HDD on the harness, it should be on the master
- separate the devices on 2 harness
I will try
- force the HDD with hdparm -X"udma4" -d 1 /dev/hdb at boot and see the errors in dmesg
- if not ok, put the slow HDD as master (alone) and see if it goes faster
- put my OS on the quickest HDD
- separate the quickest HDD from the slowest (on 2 different cables)
And adapt the structure:
- the quickest HDD: boot + home (alone on 1 harness)
- the slowest HDD as backup + second OS. On this harness I will put the IDE-adapter + CF
And post the results. In any case, I understood a bit more what happens in hardware.
 
Old 03-16-2011, 05:43 PM   #9
floppy_stuttgart
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so, even as master HDD (alone on 1 udma5 harness), the 6GB HDD was not recognized as UDMA4 (despite the HDD spec indicate ATA66). So I stop here: I will put my main OS on the quickest 10GB HDD.
 
Old 04-23-2011, 07:04 PM   #10
floppy_stuttgart
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Hello,
I found an advice in the internet.
The computer (HW or SW) has issue in checking the 80wires.. then goes to UDMA33 (despite the HDD spec show UDMA66 and the MoBo Via chips show UDMA66 as spec), so this 80 wire check has to be disabled.
As boot code "ide_core.ignore.cable=1" (for my cable on ide"1"), the HDD is now recognized as UDMA66 ! (double speed).
This topic is SOLVED.

Last edited by floppy_stuttgart; 04-23-2011 at 07:05 PM. Reason: error in the post
 
  


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