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What are these things used for.

Posted by scubi

scubi

What are these things used for.
April 22, 2015 05:47AM

Registered: 11 years ago
Posts: 154

Hi Guys
I need to ask a stupid question, see attached photo, what are these things and what are they used for ?

Thanks
Vaughan

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Attachments:
open | download - Electronics 2015-04-22.jpg (156.5 KB)

vreihen

Re: What are these things used for.
April 22, 2015 05:58AM

Registered: 10 years ago
Posts: 903

My guess would be loads on the +5V power rail, so that the ATX power supply regulates +12V properly. Check out the excellent ATX power supply article in the Wiki for an explanation of why the +5V rail needs to be loaded on some ATX power supplies.....

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rhmorrison

Re: What are these things used for.
April 22, 2015 07:13AM

Registered: 14 years ago
Posts: 3,742

Yes, that's what they are used for - to insure that +12V is +12V.

Bob Morrison
Wörth am Rhein, Germany
"Luke, use the source!"
BLOG - PHOTOS - Thingiverse

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AndrewBCN

Re: What are these things used for.
April 22, 2015 07:27AM

Registered: 9 years ago
Posts: 977

These are resistors and they are used as base or balancing loads for respectively the +5V line (red and black leads) and the +3.3V line (orange and black leads) from the ATX power supply.

See the wiki for details.

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Floyd

Re: What are these things used for.
April 22, 2015 10:28AM

Registered: 10 years ago
Posts: 770

Or you can just use a proper 12 bench supply and not have to worry about such things...