[RESOLVED] see "Generic Disk Type 47" in device manager. cannot change.

[jtcochran]

How do I get the device manager to recognize my Fujitsu hard drive as anything other than "type 47 Generic"? I try to change driver, but there is no catagory for hard disk drives. Do I have to re-load windows? It use to call it by its name and allow me to select DMA. Right now my throughput is 8.8MB/s. This is total bull.

[confus-ed]

What chipset is your m/b if its non Intel you need a patch so that it can see the controller properly. Also are you autodetecting this in bios or did you give it the cylinder counts etc? More info required

[dtzev]

I have the same problem. I use 440bx Intel chipset. How can I make win 98 show my quantum drives?

[don_webb]

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Enabling IDE DMA on Windows-based Systems

Many people are familiar with the gains to be had from using IDE hard drives
and CD-ROM drives in DMA mode; a typical machine today will use 40% of the
CPU doing hard drive transfers in PIO mode and use only 25% of the CPU doing
hard drive transfers in DMA mode, on the same hardware.
If it is known that there is DMA-capable IDE hardware in the system, an easy
way to make sure the machine is set up to use DMA is to add two lines to the
Mshdc.inf file using the OPK tools available to OEMs. The Mshdc.inf file must be
changed before the system is set up (really before the IDE devices are
enumerated and installed). If the system is already set up, Mshdc.inf can be
modified and all IDE devices manually removed from Device Manager, and then
re-detected and enumerated and installed, which will set them up in DMA mode.
In the Mshdc.inf file, add to the [ESDI_AddReg] section the two bold-faced lines
shown in the following example. The first 3 lines (not bold) should already
appear in the file.

[ESDI_AddReg]
HKR,,DriverDesc,,"ESDI Port Driver"
HKR,,DevLoader,,*IOS
HKR,,PortDriver,,ESDI_506.pdr
HKR,,IDEDMADrive0,3,01
HKR,,IDEDMADrive1,3,01

To check that DMA has been set up correctly, go to Device Manager and view
devices by type. Click Disk Drives, select the disk drive in question, click
Properties, and then click the Settings tab. In the Options section, there should
be a DMA check box, and it should be checked if DMA is being used.
Important:

For Microsoft® Windows® 98, you just have to enable the driver, since
the fix is already incorporated. In all cases, you must implement the
INF entries described in this article.
This feature will not work on Windows 95 gold; it is a feature first
introduced in Windows 95 OSR2.
If the system has UltraDMA/33 hardware and not just DMA, you should
pick up QFE513, which fixes an error recovery problem.
If you have problems, please contact your Premier Technical Support
at Microsoft. Or see
http://support.microsoft.com/support/ddk_hardware/.

File Date: July 7, 1998
© 1999 Microsoft Corporation. All rights reserved. Terms of Use.

Regards,

Don Webb

[confus-ed]

If you set bios to autodetect your ide devices it will read the manufacturers info from most drives into bios.