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AT- hardware power control.
ATX- software power control, different power connectors, different keyboard connection, different size.
AT is the older size/format, mainly use up till the late 90s. ATX has taken over since then, and is by far the most common format around from late 1990s to today, and for the forseeable future (currently March 2009)
What else can I help you with?
What is the main difference between AT and ATX style motherboard?
my computer speed is very slow why?
What are the differences between atx and nlx form factors?
NLX has slots parallel to the motherboard as ATX does not
Will an Intel made motherboard fit in an atx case?
Yes, if it is an ATX motherboard. The motherboard specifications should say specifically if it is ATX, mini ATX, BTX, ITX, etc. Most motherboards are ATX.
What is the types of motherboard?
Two common types of motherboard are ATX and Micro-ATX. An ATX motherboard is much larger and allows for additional hardware to be installed.
Is Asus a ATX motherboard?
Asus is simply a manufacturer that makes atx and non-atx motherboards. Whether a motherboard is ATX or not is specific to that single model.
Can you replace a full ATX motherboard with a FlexATX motherboard?
No. The PCI slots on the motherboard will not line up properly with the chassis and most chassis that are made for ATX have screw holes to accomodate atx and mini atx
What size motherboard is in the Dell Dimension XPS GEN 5?
It is an ATX motherboard. But even though it is an ATX size it is a company specific motherboard, and is not compatible with standard ATX cases.
Which atx motherboard has four expansion slots and is used on a full tower?
usually any motherboard that has a form factor above mini or micro atx (atx, extended atx, super atx) will have atleast 4 if not more expansion slots available by default and normally an atx (and possibly a extended atx) motherboard should fit in a full tower case (a super atx motherboard will more than likely need a super tower)
What is the physically smallest ATX motherboard specification?
Micro ATX
Is the smallest motherboard version in the ATX standard?
flex ATX above that is the micro ATX
Does a computer case with specifications Motherboad Atx-Atx micro mean that it can only take ATX motherboard?
No. All ATX cases are capable of accepting a microATX or FlexATX motherboard as well.
Can you replace an at motherboard with an atx?
no
