To ATX or not to ATX?

  Ken Ju-On 15:46 26 Jul 03

How do you differentiate an ATX casing from a non-ATX casing?

I bought my Athlon XP 2600+ within the past six months; does that mean it's pretty likely to be an ATX?

  DieSse 16:14 26 Jul 03

It's 100% certain to be an ATX case and PSU.

  BillEmm 16:20 26 Jul 03

ATX has been with us for quite a number of years now. In fact about Pentium II time if I remember correctly!

  Beb? 16:24 26 Jul 03

the one before ATX was AT. those normally had a thing for you to plug in your monitor as well, and were low powered and had different mobo connections

  pj123 17:48 26 Jul 03

AT also had a 5 pin din keyboard and a serial mouse. ATX has PS2 keyboard and PS2 mouse.

  Mastermind 17:51 26 Jul 03

I think the ATX form factor was introduced by Intel back in 1995.

I am very confident that a PC bought within the last six months would be ATX.

  Ken Ju-On 18:54 26 Jul 03

Thank you all. My reason for asking is that I wish to replace my current PSU with a 400W dual-voltage input PSU (as I'm travelling to Jamaica soon). I've found that some PSUs are ATX while some are not. I think ATX PSUs won't work in non-ATX casings. But since you all say mine is very likely to be ATX, then I'm no longer frustrated. :)

A 400W PSU would be more than enough to handle Athlon XP 2600+ right? Or would I be better off with 450W or 500W?

  Legolas 19:31 26 Jul 03

a 400W would be more than enough for a 2600+ CPU but it also depends on your other components although unless you have multiple cd-roms/hdd then 400 will do.

  Stuartli 21:07 26 Jul 03

A full rundown of the various AT, ATX, Micro-ATX factors and specifications can be found at:

click here

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