M400 control not powering up

[ClydesMFG]

I have an older M400 Centroid on a bridgeport style mill and I went to power it up after a couple weeks off and the computer wont power up the cabinet powers up but the controller doesn't I'm not even sure where to start trouble shooting and this post maybe in the wrong category.

[centroid467]

Hello and welcome to the forums.

If the computer is not powering up, the first thing I would check is the power supply in the PC. If that is not working then replace it with an equivalent ATX power supply.

[ClydesMFG]

I have power going to the power supply but its not powering up the computer im going to order a new power supply and we will see if that works

[cncsnw]

There have been quite a few generations of M400 controls.

If yours was built between ca. 2003 and ca. 2015, so that it uses a micro-ATX motherboard and corresponding power supply, then the issue might just be that the motherboard battery is dead. See https://www.centroidcnc.com/dealersuppo ... ds/272.pdf

If yours was built between 1996 and ca. 2002, so that it uses a PC104 motherboard and either a MeanWell switching power supply or an AT-style power supply, then the issue could be the power supply, but is more likely to be a dead motherboard (bad news, with that generation of console).

If yours was built after ca. 2015, so that it has a NUC or BeeLink mini PC in the console, then it could again be the computer battery (although in that case you should have 12VDC - 19VDC coming from the power supply).

If you are not sure when your console was built, tell us the Centroid control serial number from the tag on the back or side of the console.

[ClydesMFG]

I believe it was 2005-06 the SN# 20325

[ClydesMFG]

after reading your PDF the power supply fan does not turn on at all