abacab
I have an old FireWire audio interface that I originally bought for a Dell WinXP laptop with integrated FireWire.
So I added this Syba PCIe card with TI chipset.  Works great on Windows 7/10! 
 
Syba Low Profile PCI-Express 1394b/1394a (2B1A) Card, TI Chipset, Extra Regular Bracket SD-PEX30009

Yep, exactly the argument I was making above. 

JonD

kitekrazy1
 
Not the best excuse to buy hardware.  Those RME Hammerfall PCIs are going cheap on ebay.  All it takes for a motherboard with PCI to go band and not be able to replace.  With W10 being an evolving OS there may be a day where a FW unit will stop working unless they are from manufacturers with superb driver support. That's usually RME.

 
No, it doesn't have to be RME.  I have two excellent FW devices, a Steinberg MR816x and a TC Electronic Konnekt 24d, both long-discontinued, that still have current driver support (up to Win 10) and both running rock-solid on multiple systems with a TI chipset FW card. 
 
Also, driver support and protocol support are two different arguments.  Up-to-date drivers (native Win 10) will work on any modern system.  Not so, with obsolete protocols like PCI (For example, newer boards have bridged PCI slots which make them iffy at best for an audio interface).  Firewire, on the other hand, is still widely available via a PCIe add-on card.  So, until PCIe disappears, Firewire is a perfectly viable way to go.

May I ask if there is an easy way to identify whether a modern MB has bridged PCI slots ? 

iRelevant
May I ask if there is an easy way to identify whether a modern MB has bridged PCI slots ?

Easy way? Probably not. That specific info is sometimes mentioned in online reviews of boards (But mostly not, as the legacy slots become more and more rare).
 
You might try googling PCI card interfaces (RME HDSP 9632, M-Audio 1010, etc) and see if you can pick up DAW users sigs that mention their motherboard.  You could also post a request at one of the busy forums like KVR or Gearslutz (with a computer subforum) and ask any users of a PCI-card interface what motherboard they have that works well.

I think the (Intel) chipset is the clue but I don't have a list of which ones do or don't.  I have an ASUS motherboard with a Z170 chipset motherboard and it does not have a PCI slot.
 
From what I've seen posted, on this forum and others, basically from the Z97 chipset and newer practically all are bridged.
 

My TC Konnekt 48 and a host of video cameras worked through a VIA chipset, but I'd stick w/ the TI.

+1 on TI for Firewire if you've got to use a card.

JonD

iRelevant
May I ask if there is an easy way to identify whether a modern MB has bridged PCI slots ?

Easy way? Probably not. That specific info is sometimes mentioned in online reviews of boards (But mostly not, as the legacy slots become more and more rare).
 
You might try googling PCI card interfaces (RME HDSP 9632, M-Audio 1010, etc) and see if you can pick up DAW users sigs that mention their motherboard.  You could also post a request at one of the busy forums like KVR or Gearslutz (with a computer subforum) and ask any users of a PCI-card interface what motherboard they have that works well.

Thank you, very clever advice :)