Why would you use the ASIO4ALL driver instead of the m-audio driver?  You should always use vendor drivers 1st.   I have a legacy m-audio interface 1814 -- and the m-audio driver is from 2009.  I run with 64 samples at 48K (1.3ms) -- with absolutely no hiccups or studders.  Perfect sound.   I have never had much luck with ASIO4ALL drivers. 

Mike, as mentioned I ran an m-audio card on an old XP box, and it does not fit on the mainboard in my newer Win 7 box.  

As stated, all I'm using is the mainboard's onboard audio chip, which is RealTek I believe, so not a dedicated sound card.  The old Delta Audiophile 24/96 was PCI, and mainboards now pretty much only have PCIe slots.  I need some solid advice on exactly what I need to get a digital piano up and running again as I now have the Garritan AR CFX.  I need the least cost to get this piano playable w/ ultra low latency.  I only tried ASIO4ALL since I was getting wretched latency without it, and it did not improve the picture.  Appears I need a new hardware piece, presumably a cheap yet effective interface.  What do you recommend now?

First of all I need to preface that I don't work for Garritan.  I have purchased their CFX Piano VST about 2 weeks ago and I am completely satisfied!  I have tried other piano VSTS .. such as Synthogy and Pianoteq, but Garrison CFX is the best sounding on the market.

I would recommend the following:  You get an M-audio firewire soundcard -- like an M-audio 410.  Ebay is about $15 to $25.  Excellent piece of hardware!  Then buy a PCIE firewire sound card ($20 on Amazon).  You want to be ASIO with M-audio drivers.  Firewire is best for streaming (great for piano, organ vsts)... You'll hear long sounds with a sustain pedal that are glitch free.  You have arguably the best piano VST on the market.  Now you need a good soundcard interface to compliment it.  Realtek won't do it.

In my setup, I play with 64 samples at 48K which is 1.3 ms.   I haven't tried 88200K at 64 samples (which would be .7ms) but I bet it would work with Garritan.  I have other VSTs that will not play with that low of latency -- so I don't try.  But 64 samples at 48K is super stable for me.

You're suggesting TWO sound cards?  How does that work?

I guess what you are saying is I should pick up an m-audio sound card supported by m-audio ASIO drivers.  Ok I will check those out and go from there.   I'm guess PCIe might have the lowest latency since it's plugged into the mainboard?

Mike, thanks!

No you want only 1 soundcard. No matter how you slice it, you have to get to a vendor supported Asio driver. If you can do that with your midisport and get a pcie sound card for your PC.... then all good. All I’m relaying to you is that fire wire is very reliable and works great with midi and vsts. I can’t speak for USB devices. They might work just as well.... I’ve gigged years live with my m-audio soundcard and FireWire with a computer hassle free. I’ll continue to follow this