Talk:AT (form factor)

dates back to pre-tower days

I removed the following:

AT was not a very large technological jump from older form factors. The AT's largest advancement was its "tower" design and a remote power switch in the front. The AT power supply provided 192 watts, triple that of older form factors.

It is wrong on SO many levels. The first AT cases (the IBM PC/AT) was not a tower. The power switch was still attached to the PSU at the back right of the case. It was not until towers became popular that we saw the remote power switches on AT form factor cases. Furthermore, the XT did not have a 64 watt power supply. I believe the PC/XT had a 135, but I am not positive (most clones were 150 or 165). Oregonerik 17:19, 25 April 2007 (UTC)

142.151.130.0 (talk) 08:47, 3 February 2008 (UTC)

Baby-AT redirects here, but it's not mentioned anywhere. Why?? Ivan.Lt (talk) 13:39, 30 December 2008 (UTC)

Test AT or build power supply with old AT PSU

If you want to test an AT PSU or power something else with one, you may need to provide a minimum load to get it to stay on and regulate properly. In general, SMPS (Switching Mode Power Supplies) may need a load of about 10% of nominal rating to operate as designed.

This source:

• Using "AT" Type Computer Power Supplies

says that an AT power supply should be loaded with about 1A on the +5V. The article has detailed suggestions about how to provide such load.

The +12V may also need some load. There may also be interaction between the outputs. If a PSU is designed for the heaviest load to be on the +5V, then providing some load on the 5V may make the 12V output OK, but a heavy load on the 12V might make things imbalanced and malfunction; it might be necessary to provide a heavier 5V load to restore balance with a heavy 12V load. -96.237.2.113 (talk) 14:51, 14 May 2009 (UTC)

Baby AT board picture

The Baby AT board picture is upside down. Or to be specific it NEEDS to be rotated 180 degrees! The traditional position of the board is with the ISA slots at the bottom and the DIN keyboard connector at the top. The current representation is highly misleading and makes history stand on its head. — Preceding unsigned comment added by 89.173.104.194 (talk) 23:14, 14 September 2014 (UTC)

The motherboard pictured is NOT the AT board!!

It has the 8088 CPU on the board, so it clearly is not the AT board.

Fixed, uploaded correct picture and relaced Rmyers7 (talk) 16:12, 8 July 2015 (UTC)

Reference link has changed

As a quick side note, the first reference "Motherboards of AT and Baby AT" no longer links to the original page and comes up instead as a generic filter instead. --Usx9 (talk) 10:58, 14 December 2019 (UTC)

Edit: This actually applies to all PC Guide reference links — Preceding unsigned comment added by Usx9 (talk • contribs) 11:00, 14 December 2019 (UTC)

Standard AT power supply

State colour code for this standard AT power supply 102.128.76.67 (talk) 12:06, 4 March 2023 (UTC)