Testout PC Pro Chapter 3 Questions
Solved
ATX - Answer Back plate measurements (6.25" × 1.75")
Power supply specifications: 24-pin ATX power connector On/off switch runs from the case to the
motherboard Soft-power control (OS can turn the computer off)
Expansion slot locations and spacing (0.8" between slots)
Mounting hole locations
CPU location (top of board near power supply)
Standard ATX - Answer The standard ATX form factor is the form factor that all other variants are
modeled after. ATX motherboards:
Measure 12" × 9.6"
Have up to seven expansion slots Have between six and nine mounting holes
Extended ATX(EATX) - Answer The EATX form factor is the largest ATX variant. EATX:
Measures 12" × 13"
Typically uses extra space for additional memory slots
microATX - Answer The microATX form factor is a smaller version of the ATX form factor. The microATX
form factor:
Measures 9.6" × 9.6"
Has four expansion slots
ITX - Answer The ITX form factor was designed for low-power, small form factor (SFF) computers. The
most common ITX form factor is the Mini-ITX form factor. The Mini-ITX form factor:
Specifies a maximum motherboard size of 6.7" × 6.7"
Has only one expansion slot Allows for small (100 watt) power supplies Is typically used with a home
theater PC (HTPC)
, Other ITX form factors include the following:
Nano-ITX (4.7" × 4.7")
Pico-ITX (3.9" × 2.85") Mobile-ITX (2.9" × 1.7")
NLX - Answer NLX (new low profile extended) is an old form factor that was designed for use in slimline
desktop computers. NLX:
Uses a detachable riser card to provide expansion slots (the motherboard itself has no expansion slots).
Allows the motherboard to slide in or out of the system case easily. Was replaced by microATX and
Mini-ITX.
BTX - Answer The BTX (balanced technology extended) form factor was designed as a replacement for
the ATX form factor. However, it did not gain widespread adoption. With BTX:
The CPU is positioned in such a way that air flow is increased.
There is no heatsink fan. Instead, a thermal module or shroud fits over the CPU to move heat directly
out of the system. The back panel orientation and mounting location is reversed.
ATX Full-tower - Answer ATX full-tower cases are the largest computer cases. Full-tower cases have a lot
of space for external and internal components. ATX full-tower cases are compatible with the following
form factors:
Standard ATX
EATX microATX
ATX Mid-tower - Answer ATX mid-tower cases are slightly smaller than full-tower cases. Mid-tower cases
have fewer external and internal bays. ATX mid-tower cases are compatible with the following form
factors:
Standard ATX
microATX Mini-ITX EATX (some)
microATX Tower - Answer microATX towers are smaller cases designed to be placed on desktops.
microATX towers typically have only one drive bay and are compatible with the following form factors:
microATX
Solved
ATX - Answer Back plate measurements (6.25" × 1.75")
Power supply specifications: 24-pin ATX power connector On/off switch runs from the case to the
motherboard Soft-power control (OS can turn the computer off)
Expansion slot locations and spacing (0.8" between slots)
Mounting hole locations
CPU location (top of board near power supply)
Standard ATX - Answer The standard ATX form factor is the form factor that all other variants are
modeled after. ATX motherboards:
Measure 12" × 9.6"
Have up to seven expansion slots Have between six and nine mounting holes
Extended ATX(EATX) - Answer The EATX form factor is the largest ATX variant. EATX:
Measures 12" × 13"
Typically uses extra space for additional memory slots
microATX - Answer The microATX form factor is a smaller version of the ATX form factor. The microATX
form factor:
Measures 9.6" × 9.6"
Has four expansion slots
ITX - Answer The ITX form factor was designed for low-power, small form factor (SFF) computers. The
most common ITX form factor is the Mini-ITX form factor. The Mini-ITX form factor:
Specifies a maximum motherboard size of 6.7" × 6.7"
Has only one expansion slot Allows for small (100 watt) power supplies Is typically used with a home
theater PC (HTPC)
, Other ITX form factors include the following:
Nano-ITX (4.7" × 4.7")
Pico-ITX (3.9" × 2.85") Mobile-ITX (2.9" × 1.7")
NLX - Answer NLX (new low profile extended) is an old form factor that was designed for use in slimline
desktop computers. NLX:
Uses a detachable riser card to provide expansion slots (the motherboard itself has no expansion slots).
Allows the motherboard to slide in or out of the system case easily. Was replaced by microATX and
Mini-ITX.
BTX - Answer The BTX (balanced technology extended) form factor was designed as a replacement for
the ATX form factor. However, it did not gain widespread adoption. With BTX:
The CPU is positioned in such a way that air flow is increased.
There is no heatsink fan. Instead, a thermal module or shroud fits over the CPU to move heat directly
out of the system. The back panel orientation and mounting location is reversed.
ATX Full-tower - Answer ATX full-tower cases are the largest computer cases. Full-tower cases have a lot
of space for external and internal components. ATX full-tower cases are compatible with the following
form factors:
Standard ATX
EATX microATX
ATX Mid-tower - Answer ATX mid-tower cases are slightly smaller than full-tower cases. Mid-tower cases
have fewer external and internal bays. ATX mid-tower cases are compatible with the following form
factors:
Standard ATX
microATX Mini-ITX EATX (some)
microATX Tower - Answer microATX towers are smaller cases designed to be placed on desktops.
microATX towers typically have only one drive bay and are compatible with the following form factors:
microATX
