AT or ATX??

[Doug]

How can I tell if I have an AT or ATX power supply?? Fan not working and I
need to replace it.

Thanks

 

[Abhilash Tibrewal\(MCSA\)]

I assume you are referring to the fan inside the SMPS(power supply). That's
the same for AT and ATX, though the fan power connector may be different for
different model power supplies.

BTW, AT power supply has 12 connectors in one row, while ATX has 20 in 2
rows(10 each row).

 

[D.Currie]

How can I tell if I have an AT or ATX power supply?? Fan not working and I
need to replace it.

Thanks

Unless it's a really old computer, it's ATX.

But just in case...the connector that goes to the motherboard is one piece
on an ATX power supply. With an AT power supply, that piece is two pieces.

Also, if you've got a name brand computer, you might have a non-standard
power supply, either size or connector. Make sure you get the right one, or
you could fry something.

 

[Ron Martell]

How can I tell if I have an AT or ATX power supply?? Fan not working and I
need to replace it.

Thanks

AT type power supplies will have a heavy power cable (4 wires) leading
from the power supply to the main on/off switch on the front of the
computer case.

ATX type power supplies will have power connections to the disk drives
and motherboard, plus one for the front panel LEDs spliced onto a disk
drive power connector. The front panel on/off switch connects to the
motherboard with a two-wire connection.


Ron Martell Duncan B.C. Canada
--
Microsoft MVP
On-Line Help Computer Service
http://onlinehelp.bc.ca

In memory of a dear friend Alex Nichol MVP
http://aumha.org/alex.htm

 

[Neil]

Be very careful when disassembling a power supply, as even when they are
turned off they can store enough charge to kill you.

I'd buy a new one

Neil

 

[Walter Clayton]

By the power switch. AT has an on/off switch and will lock into one position
or the other. ATX uses momentary contact. If it feels like a reset button,
then it's ATX.

 

[Doug]

Thanks for everything. I found it cheaper and easyer to replace the case
w/powersupply than to just replace the powersupply.