Advice for choosing a compatible PC

Hi again.
While i was reading the "Hardware latency tests, used PC's" posts in forum, in page 10, there is a post (at 19 May 2021 17:32) by "TheFarfar" about an Asus P5B-MX, Intel Core2 Quad Q6600, 4 GB RAM.
Your comment was "That looks very good even for software stepping."

There is a PC exactly like this in Athens Greece (i am in Crete) at 50euros + 12Euros shipping cost.

I thing i have to bye it asap. It is ok for what i am going to do (XP-Mach3-USB card) and looks perfect for what i am "dreaming" to do (Linux-Mesa 7i96S)

What do you thing?

Seems OK, but it is old and might have issues, caps can cause havoc as they dry out with time.
I still have an Asus P5B Deluxe with Intel Q9400, it still works but already shows issues, like not rebooting whet you tell it to and requiring a hard reset, or fails to boot and needs again a hard reset.
Try to find a Dell 980 or HP 8300 USDT, Dell tower also has parallel port so you can throw the "mach3 usb"

Thanks, thanks, thanks ......

Sorry when you say 980?

Dell Optiplex 980 MT i5-750/4GB/250GB/Quadro FX580
Dell Optiplex 980 SFF i5-650/4GB/250GB/DVD
Dell OptiPlex 980 DT Core i7-860 2,8 - SSD 128 Gb - 4GB

Dell Optiplex 980 MT i5 €55
CPU: Intel® Core™ i5-750 2.66GHz(8M)
Socket: LGA1156
Chipset: Intel Q57 Express chipset
Memory: 4GB DDR3
# of DIMMS: Two (2)
HDD: 250GB
ODD interface: DVD-RW SATA
Bays: (2) 5,25 External, 3.5 External, (2) 3.5 Internal
VGA: Nvidia Quadro FX580 512MB
RAID Controller: No
Front I/O: (4) USB 2.0, Audio I/O
Rear I/O: (6) USB 2.0, Audio I/O, RJ45, VGA, (2) PS2, DP, Serial
Slots: PCIe 2.0 x16, PCIe 2.0 x4
LAN: Gigabit 100/1000
Integrated Audio: HD audio (PC speaker)

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Dell Optiplex 980 SFF i5 Intel® Core™ i5-650 3.20GHz (4M) €55
CPU: Intel® Core™ i5-650 3.20GHz (4M)
Socket: LGA1156
Chipset: Intel Q57 Express
Memory: 4GB DDR3
# of DIMMS: Four (4)
HDD: 250GB
ODD interface: DVD SATA
Bays: (1) 5.25″ external, (1) 3.5″ external, (1) 3.5″ internal
RAID Controller: Yes
Front I/O: (2) USB 2.0, Audio I/O
Rear I/O: (6)USB 2.0, VGA, DP, RJ-45, Audio I/O
Slots: PCIe 2.0 x16, PCIe 2.0 x4
LAN: Gigabit 100/1000
Integrated Audio: HD audio (PC speaker)

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Dell Optiplex 980 DT i7 €250
Memory: 4 Gb DDR3
Intel Core i7-860 2,8 GHz
Intel HD Graphics 2000

I will check tomorrow, i still have 2 of those.
Have good latency even with the RT kernel, never needed RTAI for these.

Hi, the MSI - P45 will definitely run this' I ran on similar gigabyte P45 for more than 10 years my linuxcnc in combination with Mesa cards. The other 4 I would personally not use , its older and you do want some reaction from the computer.