Loading Intel IAA drivers disables DMA on P4b266C

[John]

Anyone else have this problem? If I uninstall the newest IAA, DMA shows back up for the primary and secondary IDE controllers in the device manager. How freggin odd....

 

[oldfart]

It's enabled. It doesn't show in Windows since its not using the MS IDE drivers. Run the IAA program from the start menu. It will show what DMA mode each drive is in.

 

[oldfart]

You can also run a report...

Device Information
Primary Master: WDC WD1200JB-00CRA0
Model: WDC WD1200JB-00CRA0
Firmware: 16.06V16
Device Type: ATA - Fixed
PIO Mode Support: 0 - 1 - 2 - 3 - 4
DMA SW Mode Support: No Support
DMA MW Mode Support: 0 - 1 - 2
UDMA Mode Support: 0 - 1 - 2 - 3 - 4 - 5
LBA (28-bit maximum): 0x0DF94BB0
LBA (48-bit maximum): 0x00000DF94BB0
CHS: 0FCF x 0010 x 00FF
CHS Sectors: 0x00FBF310
Disk Size (28-bit maximum): 111.8 GB (120,034,123,776 bytes)
Disk Size: 111 GB (120,034,123,776 bytes)
Default Transfer Mode: UDMA-5
Current Transfer Mode: UDMA-5
Transfer Mode Limit: No Limit
Cable Type (Device): 80 Conductor
Cable Type (Host): 80 Conductor
PIO PPE: Enabled
UDMA Control Register: Ultra DMA Mode Enabled
UDMA Timing Register: CT = 3 CLK / RP = 16 CLK
Base Clock: Ultra DMA 100 Timings

 

[WarCon]

Isn't this kind of like (or maybe exactly like) other motherboards bus master driver. Usually when you install the bus master driver, it does the same exact thing. The option to enable DMA goes away, but is enabled if capable.

 

[AndyHui]

It's enabled.

Intel deliberately removes the Advanced Settings tab when the IAA is installed. You are expected to make changes through the IAA Configuration utility.

 

[John]

Thanks for the news fellas. However the advanced settings tab is still under pri/sec ide controllers w/ the IAA installed, Andy.

 

[AndyHui]

Install glitch. It happens sometimes....Intel is aware of it and they say they have fixed it but obviously it still crops up.