Sphere478 wrote on 2024-12-24, 15:42:

Anyone found a bracket that works with the card?

Here is a “snap on” version . Print with supports.

https://www.tinkercad.com/things/jeeLpwkieu9-isa-usb

Anyone willing to send me one? 😀

How well does the snap in one work? Thoughts/experience? Which one linked is best? (Most durable, fits best)

What's the maximum FAT partition size usable by these industrial cards under Win95/DOS 7?
Seems like an interesting way to obtain USB on my old 386DX system.
Can FAT32 be used?

luRaichu wrote on 2025-02-22, 22:49:

What's the maximum FAT partition size usable by these industrial cards under Win95/DOS 7?
Seems like an interesting way to obtain USB on my old 386DX system.
Can FAT32 be used?

I think you can use large FAT32 partitions with Win95B/DOS 7.1, which requires a 386 or better to boot. Also called Win95OSR2.

I don't think it works with Win95RTM/DOS 7.0. No large volume support, even though it supports Vfat file names.

Is this card alright? https://www.ebay.com/itm/256563798374

luRaichu wrote on 2025-02-23, 17:49:

Is this card alright?

Looks like mine at first glance-- Links to ebay auctions are frowned upon by the mods though. Better off doing a fair use picture.

https://www.tinkercad.com/things/jeeLpwkieu9-isa-usb-bracket

Is there a metal bracket?

I tested the Chinese CH375 card on my AM386DX-40 system using MS-DOS 6.22 and FreddyV's 286 driver. Seems to work fine at the slowest speed, 0. What's the full range for the speed parameter?

Tested with Windows 95/MS-DOS 7.1 on the same 386.
I experienced file corruption with 64GB (FAT32) and 256MB (FAT16) USB sticks and speed set to 9.
Will test with old 1GB USB stick freshly formatted as FAT32. Too bad we can't format USB disks with this card!

luRaichu wrote on 2025-03-31, 17:16:

I tested the Chinese CH375 card on my AM386DX-40 system using MS-DOS 6.22 and FreddyV's 286 driver. Seems to work fine at the slowest speed, 0. What's the full range for the speed parameter?

Hi,

Speed parameter is not used 😀

Any clue about data loss? When copying files from the USB stick to the hard drive, the files on the USB stick are spoiled. That should not happen if we're simply reading from USB.

Did more testing with 1GB and 4GB USB sticks. Seems stable now with correct speed setting.
When using the CH375 driver under Windows 9x, Load it with DEVLOAD in AUTOEXEC.BAT to avoid forcing MS-DOS compatibility mode on all disks.

DEVLOAD /H CH375286.SYS @260 %0