What kit for new LinuxCNC pc

Hi all
I've been running LinuxCNC for some years now and I've been clicking the "OK" button when I was nagged my version is no longer supported. My logic being - if it ain't broke.... don't fix it.
Well the (onboard) video has gone on the old PCs motherboard, hardly surprising considering it is in a damp garage year in year out.

I've fiddled around and found other newer potential PCs but all have drawbacks, so I thought I'd ask what you guys do.

Most modern PCs seem to have onboard graphics cards,... or the choice to buy a third party one at £200 plus..
Can we use onboard graphics as the documentation suggests not..... but I have up to now... ??

Next is the parallel port... newer PCs do not seem to have these.
Are the addon cards OK or do we now use USB? or an adaptor?

Any advice greatly received

Cheers
Danro

Onboard video is usually not a problem
Add-on PCI or PCIE parallel port cards are typically OK and there are modern motherboards with onboard parallel ports
USB--> parallel adapters wont work for motion control

Thank you PCW.
You confirmed my suspicions.
As it happens if found a Dell SFF pc with on board parallel and video, under my bench, just after posting.So I'll give that a go.
ATB

I have just bought for £100
www.ebay.co.uk/itm/5I25-Superport-FPGA-b...p2057872.m2749.l2649

Which will plug into your existing PP BOB (Replaces a parallel port) and it does pulse generation on board for stepping (This almost eliminates latency issues) so almost any pc with a pci slot can be used if less than 15 years old. No need to think about GPU has good upgrade paths if needed later.

You can later upgrade the breakout board (Mesa do a whole range) for better speeds, more inputs, etc but this works with your existing setup and will give good performance and no need to rewire the BOB.

I really didn't want to rewire the bob now I have everything working lol.

I got one of these: www.newegg.com/Product/Product.aspx?Item=N82E16813135393&nm_mc
It was $56. memory for it was $35. I also used a Mesa 6i25 + 7i76. I looked at all of the old PC I had access to and they either had very bad latency or the capacitors were starting to bulge. This was all cheep enough and with the Mesa the latency wasn't so critical. Mine was a new conversion.

John

I've built a lot of PCs using Mini-ITX motherboards as they are big enough to have useful processing grunt but small enough to tuck into a corner somewhere. Many of them still have parallel ports, and I've run Ubuntu on all of them.