Oh try moving or getting a different video card...does not have to be a gtx nvidia...and put that on a different slot...to move a irq sharing audio card....if you have more pcie than pci....should work.
 

Sir Les
You say...some noise when moving the mouse...That might be tied to HDMI audio codex on video card driver....As I have found to happen here....and might not be completely turned off...in OS or Applet for video card..or device manager...Might pass through...?

 
Thanks for the response Les.  I'll have to go back and revisit all of that.  I know that the on board audio is off.
 

And or IRQ sharing..if so...yes, all that, may be tied to noise.
PCI chip bus bridge to PCIe?...Not sure about that....could be...Yet this is a long and hard to sort issue, I'm still testing myself....

 
As mentioned above, I checked the IRQ sharing.  The audio interface is on IRQ 19 and is accompanied only by two instances of "Intel 82801 PCI Bridge - 244E.  The PCI Bridge is what Steve suggested is the problem.  The graphics card is on a different IRQ.
 

As I may not have much to offer in regards to how to setup your choice Motherboard...Manual is best to seek out what shares with what...and try to put the card in the least shared slot..if one exist that does not share...(you probably did your homework on).and not one that shares the video card irq....as forced by chipset.
But perhaps a multimedia shared port or slot...
 
if this is the reason for having it that way...no other slot available...there are ways to hack into the irq sharing feature that has been hidden from users in win 7 and up.
 
But you would have to google that...and follow if wanting to continue to use what you got...not going on...to make it go..on with...lol.

 
Yep.  Only one PCI slot.  It was very hard to find a MB with the right layout.
 

And if some here think buying new audio gear is going to solve for X....No freaking way!
 
Cheers.
 
Sir Les

I may be forced to do it though...  Thanks for your input.
 
Paul

Unfortutunately if you want to use a. PCI based sound card then this motherboard willl not do it.

Most USB based sound devices have latency that will likely surpass your Delta card. Certainly the other components used will be better.

I was told long ago that PCI audio cards are very susceptible to internal noise. Might be why we have moved on. Check out Motu

scook
The problem is likely the PCI slot itself. Most modern motherboards implement PCI slots using a bridge chip rendering the slots useless for old PCI audio interfaces.

This is the answer.
The older machine most likely has true (non-bridged) PCI slots.

sock monkey
I was told long ago that PCI audio cards are very susceptible to internal noise. Might be why we have moved on. Check out Motu

Though I'm not a fan of A/D D/A converters being inside the PC, some designs (Lynx) are much better than others.
Lower cost interfaces with onboard A/D D/A typically see a noise-floor of ~-100dB.
That's not horrible... but it's not stellar.
The noise the OP is talking about wouldn't be the noise-floor.
 
The most probable cause is the Z97 motherboard using a bridged PCI slot.
 
 

mudgel
Unfortutunately if you want to use a. PCI based sound card then this motherboard willl not do it.

Most USB based sound devices have latency that will likely surpass your Delta card. Certainly the other components used will be better.

Thanks Michael.  I ended up getting a Focusrite Scarlett 6i6.  I still have some bugs to work out but at least it's quiet.

sock monkey
I was told long ago that PCI audio cards are very susceptible to internal noise. Might be why we have moved on. Check out Motu

Thanks Spencer.  It's got to be the new MB's PCI slot as the Delta is dead quiet in my old system.

Jim Roseberry

scook
The problem is likely the PCI slot itself. Most modern motherboards implement PCI slots using a bridge chip rendering the slots useless for old PCI audio interfaces.

This is the answer.
The older machine most likely has true (non-bridged) PCI slots.

Thanks Jim.  Yes, my previous MB was a 6 year old Gigabyte that was "yesterday's" technology when I built that machine.

fireberd
 
I got a new floppy drive but it won't connect to any USB port on my new motherboard because all the ports are either USB 3.0 or USB 3.1.  I found it will connect to a USB 2.0 port and currently waiting for a PCIe USB 2.0 expansion card to be shipped.
 

No need to add a PCIe card.  Your motherboard has USB2.0 connector pins onboard already.  Just add a cheap rear chassis bracket that supplies the cable connectors.