what's the difference between these two motherboards?

[OmegaShadow]

mobo #1 MSI H61M-P20 (G3)
http://www.msi.com/product/mb/H61M-P20--G3-.html



mobo #2 MSI H61M-P31 (G3)
http://www.msi.com/product/mb/H61M-P31--G3-.html



the reason why i'm asking is because i can't find any difference between these two motherboards from looking at the website specifications. however, for some reason the P20 motherboard is about $15 cheaper than the P31 motherboard. i only difference i see is that one motherboard ends with P20 and the other motherboard ends with P31 in its name.

if they are exactly the same, then i'm going to buy mobo #1 since its cheaper.

 

[jomeshkck]

I have three Intel DH61WW Motherboards with i3-2100. I faced freezing problem on all three mobos for last one year. And each mobos are replaced lots of times from Intel RMA(Digicare) and all mobos show same problem. I waste my lots of time for it.

The problem is it turn off within a half hour and not turn on quickly. This problem shows even it was working on CMOS setting menu by F2 key when it was connected only to the display, memory, keyboard & cpu with a well worked PSU.

Also, sometimes the DH61WW motherboard PCs turn off without a reason and it may working after a while.

All Voltages are perfectly shows even after freeze. And all motherboard components are working good. Also all temperature values below in 55°C.

In my experience the DH61WW may not ahead a period of six month, if use at least 8 hours per day. And the replaced DH61WW is stopped working with in few days.

I feel DH61WW/H61 chipset has a bug. So no one purchase a H61 chipset motherboards as blind. Coz Intel may continue this dirt chipset for there new 22nm Ivy Bridge processor.

Jomesh

 

[EltonL]

As far as I can see, the P31 has a slightly faster ethernet controller.

 

[OmegaShadow]

that is really the only diff?