Re: Asus B250 Mining Expert motherboard schematic
it is a deadend search, Asus will never release it.
Ended up sending mine to Asus for repair...
doctorman
Member
Last Activity: 01-20-2022, 09:20 AM
Joined: 03-24-2021
Location: here
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Re: Asus B250 mining motherboard component issue
1) the pic was just showing what I got on the 24 pin by ohm meter with the correct pin out numbers, seam fine to me [url]https://imgur.com/a/Hp5hl13[/url]
it is working , but not much to see on it
2) some number show before 58 on diagnostic board
if I take out the RAM altogether and run it it gives me a different error for the RAM not present.
so the BIOS should be okay... and there is a bad component probably somewhere
I do not have schematics and...Leave a comment:
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Re: Asus B250 mining motherboard component issue
ok so I was using the PCU side of the pinout , switched it over to the motherboard pinout and it all makes sense
looks like there is no short at least in the big picture
now the question is .. what the hell is wrong
could be a bad BIOS flash ?
[url]https://imgur.com/a/Hp5hl13[/url]Re: Asus B250 mining motherboard com...s sense <br />Leave a comment:
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Re: Asus B250 mining motherboard component issue
I might be using the wrong pinout for the ATX 24 pin...
none of this makes sense ...
what is a good pinout map, I wills tart overLeave a comment:
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Re: Asus B250 mining motherboard component issue
so I used the ohm only , removed CMos battery, reset my ohm meter to zero
held it on place for few second till stabilized the reading
Pin 14 (-12v) shows 13ohm
Pin 9 is the 5VSB I get 13ohm
seams like pin 14, 15, 16 are connected together
If I had schematics perhaps I could have tried better , but I got nothing and no experience no advanced tool so I feel completely hopeless
Does anyone know of a good service I could send...Leave a comment:
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Re: Asus B250 mining motherboard component issue
PSU disconnected,
Cmos battery in place
the motherboard is on insulate surface out of the case
I used craftsman No 130810958 multimeter , it has
Auto Ohm, Diod v , Continuity with beep Ohm, Auto Cap nF
modes
I used Continuity with beep for testing.
Pin 14 (-12v) beeps on continuity shown 11ohm
on Auto Ohm mode shows OL
1 probe is on USB case Ground, 1 probe in pin 14.
Pin 9 is the 5VSB I get 11ohm on Auto ohm...Leave a comment:
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Re: Asus B250 mining motherboard component issue
checked the continuity on the 24pin ATX port to the ground
compared it to a working motherboard of same model
following pins are abnormal on the 24 pin shorted or cut out
Pin 9 +5v is shorted and gets 12ohm
Pin 14 (-12) gets 10ohm but should be no connection
Pin 15 G gets 10ohm but should be no connection
Pin 16 PS-on gets 10ohm but should be no connection
there is certainly a short somewhere but it is impossible for me to figure it out specially without the schematics...Leave a comment:
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Asus B250 mining motherboard component issue
I have a Asus B250 mining expert mother board that does not post,
it turns on, CPU fan and LED is on, no buzzer sound, and reboots after 25 seconds or so.
The components have been tested in another of the same model motherboard.
no visible issue at all
cpu pins are good , capacitors look good
but when I was testing continuity of all capacitors on circuit using regular multimeter , I found one that has continuity while all other did not,
so I checked the same capacitor on a working motherboard and see that it...Last edited by doctorman; 03-24-2021, 05:03 PM. -
Asus B250 Mining Expert motherboard schematic
would really appreciate if I can get this boards schematics please
Asus B250 Mining Expert motherboard -
Re: New Members - please post your introductions here
looking to fix my own motherboard, seams like I am in the right place... awesome forumLeave a comment:
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