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Need Help With Amptron Socket7 PM-9100LMR Power and Front Panel Connections

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First post, by tegrady

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Hi, I have an Amptron Socket7 PM-9100LMR motherboard. However, I do not have the manual and I cannot seem to find one online.

I am trying to hook up the power button, reset switch, hard drive led, etc. However, the motherboard does not mark these connections like a modern motherboard.

I assume that the connectors are the group in the bottom right corner of the board, but I am not sure.

Does anyone have this manual or can you tell me what goes where? Thanks.

Reply 1 of 3, by konc

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Amptron are rebranded PcChips motherboards. The layout of your motherboard looks identical -at least for the part you're showing us- to PcChips M571LMR.
It also has a 22-pin jumper array labeled J8, with pin 9 missing.

The attachment Untitled.png is no longer available

Manual extract for (J8):

The attachment Untitled2.png is no longer available

Needless to say that you're doing it on your own and please don't blame me in case of fireworks. I would definitely try this legend and I'm personally convinced it's correct, but I had to say this 😉

Reply 2 of 3, by dionb

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Note that you only need / can use the power switch on the front panel if you are using an ATX power supply - i.e. a PSU with soft power on. AT power supplies (that connect to the M8/M9 connector next to the ATX 20p connector) don't have soft power on, just a hard physical switch on the external (mains voltage) side wired to the PSU, not to the motherboard.

Reply 3 of 3, by tegrady

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Thanks! You are awesome!

And yes, I am using an ATX power supply.

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