[Troubleshooting]Friend purchased pc a while ago, and asked me to help with upgrades.

Posted by Barskiandhutch@reddit | buildapc | View on Reddit | 3 comments

So he has an Acer Aspire M3970. The case is small and and the video card he bought fits, but the power supply is too small to support it. So I had an extra power supply that I sold him for a good price. This power supply was too big and I offered him my extra computer case so everything would fit better and he could use it later to upgrade his mobo when he decides to. So here's the problem; The PC didn't come with any manuals or anything like that so I'm having trouble determining where the plugs go on the pins for the front panel LEDs/switches. The case is a Cooler Master CM690 Nvidia Edition and I have taken pictures of the pins and the plugs. If someone could please direct me with arrows(none to the knee please) or just good instructions, it would be appreciated. This is the part of the mobo in question EDIT: Also the motherboard serial from what I can determine is: IPISB-VR Rev 1.01

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oldfolkie@reddit

This Acer IPISB-VR Rev 1.01 motherboard is also used in the Gateway DX4860.

Unfortunately, neither Gateway nor Acer has made motherboard specs available online.

I recently transferred all the components of my Gateway into a new HTPC case, so I faced the same problem of identifying the front panel pinouts on the motherboard. By trial and error, I came up with this which is working for me:

The row of pins closest to the PCIx sockets is the ODD numbered row. The row of pins closest to the edge of the motherboard is the EVEN numbered row.

Numbering starts with the pins closest to the center of the board, so the ODD numbered row will be 1 - 3 - 5 - 7 - x x x as it moves away from the center of the board. Likewise, the EVEN numbered row will be 2 - 4 - 6 - 8 - x x x as it moves away from the center of the motherboard towards the edge.

Pin 1 = HDD Led positive;
Pin 3 = HDD Led negative;
Pin 5 and 7 = Reset;
Pin 2 = Pwr Led positive;
Pin 4 = Pwr Led negative;
Pin 6 and 8 = Pwr switch;

Hope this helps someone out there.

SDSDInk@reddit

My Man! Thank you!

Here is the diagram for anyone else that needs it.

https://sdsdink.com/CommonImages/schimis.PNG

Unhappy-Ad-3122@reddit

Thanks!