what does com stand for in schematics?

[Bajantechnician]

So I'm using the pinout thing for the ax1200i from overclock.net, and it says com. Does that mean ground?

 

Thanjst

[manikyath]

well... do you see "GND" listed anywhere else?

 

if not... they used "COM" (common AKA ground.)

[Enderman]

common

[Bajantechnician]

3 minutes ago, manikyath said:

well... do you see "GND" listed anywhere else?

 

if not... they used "COM" (common AKA ground.)

Yeah, it's com

 

2 minutes ago, Enderman said:

common

I see. Thank you both

[Enderman]

6 minutes ago, manikyath said:

if not... they used "COM" (common AKA ground.)

oh and btw common is not always ground

using a multimeter to measure current makes the common live power

[manikyath]

1 minute ago, Enderman said:

oh and btw common is not always ground

using a multimeter to measure current makes the common live power

if common isnt ground, they have a ground somewhere else "usually"

 

and in the case of the multimeter... yes and no.. this is some touchy topic here, because if you put the meter on the ground wire, you basicly make the "vcc" ground, or, in the very theory, its acutally neither, since there is a theoretical resistance in the meter and blabla.

[Bajantechnician]

1 hour ago, Enderman said:

oh and btw common is not always ground

using a multimeter to measure current makes the common live power

no ground, only common

It's psu, so I believe it's only 12,3.3, and 5 v

1 hour ago, manikyath said:

if common isnt ground, they have a ground somewhere else "usually"

 

and in the case of the multimeter... yes and no.. this is some touchy topic here, because if you put the meter on the ground wire, you basicly make the "vcc" ground, or, in the very theory, its acutally neither, since there is a theoretical resistance in the meter and blabla.

No ground. Only common

 

 

[Squirrel724]

COM would be the common ground between the different voltage rails.

1 hour ago, Enderman said:

using a multimeter to measure current makes the common live power

What other point are you measuring between?

[Bajantechnician]

1 hour ago, Squirrel724 said:

COM would be the common ground between the different voltage rails.

What other point are you measuring between?

ummm

i think i broke my cable. lolpsu wonnt accept it to boot properlyitll boot, but i think i switched up rails. voltages are correct

time to get a new one

[Enderman]

16 hours ago, Squirrel724 said:

What other point are you measuring between?

you put the red wire on the positive end of the battery and use the black wire as +

then you complete the circuit and measure amps

[Bajantechnician]

8 minutes ago, Enderman said:

you put the red wire on the positive end of the battery and use the black wire as +

then you complete the circuit and measure amps

It's psu cables. Not a battery circuit

[Enderman]

5 minutes ago, Bajantechnician said:

It's psu cables. Not a battery circuit

i know

 

did you not read my first post?

 

"common is not always ground for multimeters"

[Bajantechnician]

47 minutes ago, Enderman said:

i know

 

did you not read my first post?

 

"common is not always ground for multimeters"

Yes, i know.

but in this case it is ground correct?

[Enderman]

Just now, Bajantechnician said:

Yes, i know.

but in this case it is ground correct?

yes for the PSU it is

[Bajantechnician]

1 minute ago, Enderman said:

yes for the PSU it is

ok.

 

Thanks

[Squirrel724]

55 minutes ago, Enderman said:

i know

 

did you not read my first post?

 

"common is not always ground for multimeters"

We were talking about com on the psu, not multimeters. On most multimeters COM is the negative for all settings except 10A which has its own negative as it is fused differently.

[Enderman]

34 minutes ago, Squirrel724 said:

We were talking about com on the psu, not multimeters. On most multimeters COM is the negative for all settings except 10A which has its own negative as it is fused differently.

Yes I know that, that's why I specifically said that com is not always ground, such as when dealing with multimeters

 

I was teaching him something new. Did you not read??

[Bajantechnician]

3 hours ago, Enderman said:

Yes I know that, that's why I specifically said that com is not always ground, such as when dealing with multimeters

 

I was teaching him something new. Did you not read??

 

3 hours ago, Squirrel724 said:

We were talking about com on the psu, not multimeters. On most multimeters COM is the negative for all settings except 10A which has its own negative as it is fused differently.

no more fighting you to.

 

but thank you