Modern motherboard with dual floppy

[Mr T]

Check this forum out..

looks like someone researched back in 2016.

Motherboards know to support two floppy drives.

All boards also support High, Double and Single density unless stated
otherwise.
Boards tested by Phill HS / Prime unless otherwise stated.

Board Arch Notes
Gigabyte GA-71XE Athlon Slot A
Gigabyte GA-7ZX Athlon
Iwill KK266 Athlon
Iwill KK266-plus Athlon
Asus A7M266-D Athlon XP/MP
Asus A7V266E Athlon XP Supports 2 drives - cmjones01
Asus A7V8X-X Athlon XP Does not support 360K drives in BIOS.
Asus A7V600 Athlon XP Does not support 360K drives in BIOS.
Abit NF7-S Athlon XP
ASRock K7S41GX Athlon XP
ABIT AN8 Fatal1ty Athlon 64-939
Shuttle SN68SG2 Athlon 64-AM2 Needed BIOS modification to enable 2 drives / 5.25"
Shuttle SG22SG2 Athlon 64-AM2 Needed BIOS modification to enable 2 drives / 5.25"
Shuttle FS50v1.3 Pentium Native support for 2 drives & SD/DD/HD - Arcadian
Shuttle SB52G2 Pentium Native support for 2 drives & SD/DD/HD - IanB
Shuttle SB51G Pentium Native support for 2 drives & SD/DD/HD - IanB

Motheboards known **NOT** to support 2 floppies.
This may be lack of BIOS support or that the floppy disk controller only physically
supports a single drive.

Board Arch Notes
Intel D845GRG Pentium 4
Intel D845HV Pentium 4
Asus A8N-SLI series Athlon 64-939 FDC only supports 1 drive.
Asus M2N-SLI Delux Athlon 64-939 FDC only supports 1 drive.
MSI K8N Neo4-FDC Athlon 64-939 FDC only supports 1 drive.
Gigabyte M61PME-S2 Athlon 64-AM2+ FDC only supports 1 drive.
ASRock N68-GS Fx Athlon 64-AM3+ FDC only supports 1 drive.
Gigabyte GA-MA770 Athlon 64-AM3+

[Jonas-fr]

Excellent link, your google-fu is impressive! The mobos looks a bit dated but I'll check them out. Still on the hunt for a more modern mobo, the one from the HP Z800 seems to support floppy (but not sure if it's USB based (bad) or truly a Super I/O (good)). Anyway cheers for your input

[Karlsweldt]

Like the ISA slots and serial ports, so too floppy drives have faded from use. But not entirely. The "A" drive provision should still be in the BIOS page for 'general' setup.. even if the header is not present on the board!
For motherboards dated older than 2000, possibly the BIOS can accommodate the older 360 Kb 5.25" floppy format. But expect to only have the 1.2 Mb 5.25" format, and the 720 Kb/1.44 Mb format for the 3.5" drive. Odd and lucky if the BIOS still can accommodate the 2.88 Mb floppy format!

[evasive]

PCI to ISA bridge:
http://www.costronic.com/Ev72p.htm
And from there using a regular ISA floppy I/O card.

Not sure if there's such a thing as PCIe to PCI bridge cards and it might stretch things a little too far, but hey, you can always try.

[Mr T]

Intel DQ67OW looks a good bet, socket 1155 and can be found cheaply and easily on Ebay along with decent 1155 CPU's along with 4 RAM slots supporting up to 32Gb of DDR3.

[Karlsweldt]

PCI to ISA bridge:
Not sure if there's such a thing as PCIe to PCI bridge cards..

PCIE to PCI bridges are still available, but not a common market need.. unless for low-profile rack mount setups.
https://www.diodes.com/products/connect ... i-bridges/
ISA bus speed maxes out at 8 MHz, where PCI bus speed is 133 MB/s @33 MHz default, up to 266 MB/s default @66 MHz, max 533 MB/s @66 MHz/64-bit.
https://en.wikipedia.org/wiki/Conventional_PCI

[Jonas-fr]

Intel DQ67OW looks a good bet, socket 1155 and can be found cheaply and easily on Ebay along with decent 1155 CPU's along with 4 RAM slots supporting up to 32Gb of DDR3.

Very good suggestion, this could be the one I was looking for! The specs (page 52) shows the support of two floppy with all the right signals, at last the holy grail between legacy and modernity has been found. I'm very grateful Mr T! Cheers!

[psiabeta]

Hi,
I ve just registered to let the others know that

AIMB-742 motherboard (ATX) is another one with 2-floppy controller (320, 1.2, 1.44) and supports Pentium 4/Celeron.
Im getting one for my retro-PC with MSDos, Win 3.11, Win95, Win98, Me, 2000, XP, 10 operating systems.

Cheers!