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PostPosted: Tue Feb 24, 2015 6:44 am 
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Pilgrim
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Because the motherboard MCP61PM-HM according to the information on
http://support.hp.com/it-it/document/c02018561 reports two jumpers to reset the bios? (CLR_CMOS_HP and CLR_CMOS). What is the difference? Why use CLR_CMOS_HP and not CLR_CMOS?
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PostPosted: Tue Feb 24, 2015 9:48 am 
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Mobo-fu Master
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Welcome to Motherboards.org.
Here is another link to the motherboard in question.. http://support.hp.com/us-en/document/c01357175
There are two noted jumpers, one clears the BIOS settings in CMOS, ( CLR_CMOS ) which is a 3-pin jumper. Pins 1&2 are the 'normal' position, pins 2&3 are the 'clear' position. The other jumper noted, ( CLR_PWD ) clears a protective password on the BIOS settings. Could not find any info about that ( CLR_CMOS_HP ) you noted, may be in reference to another feature.

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PostPosted: Tue Feb 24, 2015 11:21 am 
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Lead Mobo-fu Master
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Quote:
Could not find any info about that ( CLR_CMOS_HP ) you noted, may be in reference to another feature.



If you look at the images you will see the:

CLR_CMOS_HP | CLR PWD
CLR_CMOS | CLEAR_PASSWORD

And the reasoning behind the CLR_CMOS_* is to help sort out OEM BIOSes for the same board. Under the HP umbrella, the ECS MCP61PM-HM is sold under Two different codenames which each have more then one version... A hornet's nest I am actually trying to sort out..

btw mariox, would you mind helping me out? How is it you know it is a Nettle3, strictly from HP's information? Cause if so, trust their information with a grain of salt..

What system?
What sp# for the motherboard?
Also, what is written on the board "MCP61PM-HM Rev: ??" And the string of numbers underneath..

A hodgepodge of information for the MCP61PM-HP http://www.ctechinfo.net/forum/viewtopi ... =67&t=2107

EDIT: To be more specific the MCP61PM-XX base board is sold under a number of OEM's. From what I know so far..
-HM is HP/Compaq
-AM is Emachines (Subsidiary of Acer)
-GM is Gateway

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PostPosted: Wed Feb 25, 2015 5:45 am 
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Pilgrim
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MCP61PM-HM Rev 1.0B
15-v06-011021
NETTLE2-GL8E


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PostPosted: Wed Feb 25, 2015 8:24 am 
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Lead Mobo-fu Master
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mariox wrote:
MCP61PM-HM Rev 1.0B
15-v06-011021
NETTLE2-GL8E

Ok this will help in sorting out the various versions of the board.

As far as the question at hand, clearing the CMOS

As far the process goes, Karl had it spot on. Jumpers 1 & 2 are "Normal Mode" and Jumpers 2 & 3 are "Clear Mode" for both the CMOS and the BIOS Password Settings.

As far as why CLR_CMOS_HP is there, my best guess is posted above.

Now onto my next question for you. What brought on the original question in regards to the clearing CMOS? Did you try flashing the BIOS with bad results? Trying to upgrade components with bad results?

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