I have to disagree about the DMA mode unless this device is CARDBUS. PCMCIA IS THE SAME AS ISA.
16 BIT NOT 32 BIT CARDBUS.

You will not find any UDMA ISA CARDS on the market because PCMCIA is limited to 5MB per second.

It's CardBus...

Speedstep, the ISA and the PCMCIA bus are limited to 16 MB/sec. 8Mhz at 16 Bits do the math AS opposed to Cardbus and PCI bus wich are limited to 133MB/sec (32 bits at 33Mhz).

But you are entirely right that ISA bus or PCMCIA bus only support DMA and PIO mode, nor UDMA and that Toshiba is not better than Dell ;-o

Bus speed is not the only issue. Many designs use 5 to 8 wait states on the pcmcia/isa bus.

Tubes are still used but I havent seen a Dell socket 478 Pentium4 with tubes yet.

http://www.aopen.com/products/mb/ax4b-533tube.htm

I think they use a 12 AT6 dual triode.

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@Kanekane wrote:

Speedstep, the ISA and the PCMCIA bus are limited to 16 MB/sec. 8Mhz at 16 Bits do the math AS opposed to Cardbus and PCI bus wich are limited to 133MB/sec (32 bits at 33Mhz).

But you are entirely right that ISA bus or PCMCIA bus only support DMA and PIO mode, nor UDMA and that Toshiba is not better than Dell ;-o

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Some Interfaces do not use an 8mhz clock instead they use 4.77mhz clock for the 16 bit ISA for compatability with cards that use vacuum tubes.

5 or 6 mb per second is the MAX I have been able to get out of most ISA/PCMCIA busses.

That is great, it remember me I already readed a bit in Maximum Pc on this board maybe a year before, when it was first introduced. It produce a smoother sound as it's not as switched as numeric transistors, but what is not said is that the onboard codec offer a big lost in cpu cycles, signal to noise dB ratio and of course surround functionnality ! (not to name pci slots lost) Still a nice board for somebody with a Lexan Case :-D