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12-22-2013 06:00 AM
I installed the mobo from an h8-1223 into a new case and forgot to draw out where the wires went before pulling them all, so this board is not marked as to where the pw sw, pw led, hdd led, reset sw, etc. go. The only I have found is where the pw sw goes. When I search for the schematics for this mobo from this model, all I ever find is the M3970AM mobo schematic. Its like the BM model doesnt exist. It was a new desktop last year and has never been altered. The case has not even been opened. Can anyone help me find a diagram of the M3970BM mobo?
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12-22-2013 10:23 PM
12-22-2013 09:23 PM
As far as I can tell, there is no M3970BM motherboard. According to the specs, your computer uses the M3970AM-HP motherboard. Please see the image below for the front connector pinouts;
If you have any further questions, please don't hesitate to ask.
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12-22-2013 10:23 PM
02-17-2015 07:33 PM - edited 02-17-2015 07:35 PM
I have one too. It is definitely a M3970BM the specs in support on HPs site does list the AM version and I made the mistake of using the BIOS update and it fried my mobo. Don't know for sure but suspect the BM may stand for the AMD version and AM for Intel as my h8-1300z was all AMD configured with a FX-6120 CPU and HD 7570 GPU.
I know this is an old post but if you still need help I have one to go by.
10-31-2016 08:30 PM
I am working on a media center build using a bunch of old parts I had lying around, and the other motherboard I originally intended to use was not the correct socket type for my processor that I have. So I wanted to temporarily use this Mobo (M3907BM, not AM) that I got off of an old HP PC temporarily until i can get another Mobo more suited to my needs. Any help I can get on such an old thread would be greatly appreciated.
Will post the results of the configuration Rosebud55 suggested a bit later.
10-31-2016 11:26 PM - edited 10-31-2016 11:30 PM
I will be glad to help in anyway possible. I have one that is still 'hooked-up' and all I've done is take the gfx card and RAM out to use elsewhere, so I can still see how all the connections are wired if need be.
The one big thing I noticed when I changed heatsinks is this mobo takes an Intel type heatsink as the holes are square and not rectangular like a usual AMD type. I think somewhere down the line they [HP] had too many made up then ran out of CPUs and sort of 'jerry rigged' a set up...if you need my original heatsink let me know as it was made for the bolt pattern and I still have it in pristine condition.
11-01-2016 12:23 AM
Also let me add that any 'universal' heatsink that will work on an AM3+ will work as it has the 970 chip set up and they have the square or rectangular base to attach it with. I got a very good Artic cooler type at a very reasonable price on Amazon that works much better than the OEM version.