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Form factor

The form factor sets the standard for the size of a motherboard and the design and placement of holes, slots and ports. His case must format the card you choose. Most motherboards today are set by the ATX form factor. The home theater enthusiasts looking to consider a PC for the living room to a smaller MicroATX board. These cards use the general ATX design, but also fewer slots I / O, so that an adjustment board shorter than in a small box.

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I have a tidalwave W32 motherboard to which i need to know what size pc case i need.Thanks for any help


Motherboards and cases are designed according to standard dimensions called form factors. The specs for that motherboard say that it is designed according to the ATX form factor (which is the most common one). If you go to www.newegg.com you should be able to look at cases and filter by "type". There are several sizes, but as long as it says it's an ATX case (NOT microATX) you should be good to go.

Aug 15, 2011 | PC Chips Tidalwave W32 Motherboard

1 Answer

Would like to upgrade Gateway Desk Top 500SE to a HD video


I don't think you can't do that without some major changes. The 500SE is a small format computer. The motherboard only has 2 PCI slots so you need to match that interface. NewEgg still sells the PCI video cards but I don't think they are HD
http://www.newegg.com/Product/ProductList.aspx?Submit=Property&Subcategory=48&Description=&Type=&N=2010380048+1069609642&srchInDesc=&MinPrice=&MaxPrice=&PropertyCodeValue=696%3A9642

You need a more larger power supply. The current one is a 145 watt u-ATX Form Factor; you need at least 250 watts in that form factor (size)

A better choice might be a new motherboard. Look for board with a AMD Socket 7 if you want to keep this CPU. The motherboard will need to match the size of the current one to reuse the case. It's a uATX "like" form factor (7.4" x 9.35"). Also plan on a new power supply any AGP or PCI-e video card will want more than 350 watts (for the low end cards). Getting a new computer might be worthwile.

I hope this helps.

Cindy Wells

Apr 13, 2010 | Gateway Computers & Internet

1 Answer

i would like to move it in to a bigger case


When looking at the specifications of the HP Compaq DC7700 SFF Desktop PC, all they state is the motherboard form factor is, 'Custom'.

Same thing for the DC7700 USDT Desktop PC.
Both of these desktop computers are of the 'Pizza Box' design.
(Flat rectangular box)

The DC7700 CMT model is a tower model, and the motherboard form factor for it is uATX.
uATX can also mean Micro-ATX.

The form factor of a Micro-ATX motherboard is 244mm by 244mm, or also said as 9.6 inches by 9.6 inches.
(9.6 inches is approximately 9 and 9/16ths inches)

To regress for a moment, and explain the term Form Factor.
This term is supposed to apply only to motherboards, but has gone on to apply to computer cases, and power supply's.

Form factor means the dimensions of the motherboard, and also where the I/O area is located.

[I/O = Input/Output
Area for the Input/Output devices that are attached to the computer.
Examples: Mouse, Keyboard and Monitor]

Whether the motherboard is installed onto the Left side of the computer case, and the I/O area is on the Left side also (ATX , Micro-ATX, and uATX form factor),
or
whether the motherboard is installed on the Right side of the computer case, and the I/O area is on the Right side also. (BTX)

Dimension sizes:
ATX is 305mm x 244mm. (12 inches by 9.6 inches)
Micro-ATX is 244mm x 244mm (9.6 inches by 9.6 inches)

http://en.wikipedia.org/wiki/Computer_form_factor

Above the link is the Maximum size for the Micro-ATX form factor.
It can also be the Minimum size of 171.45mm x 171.45mm

(Or 6.75 inches by 6.75 inches.
6.75 inches = 6 and 3/4 inches)

http://en.wikipedia.org/wiki/MicroATX

Point of all this?
The motherboard form factor inside a DC7700 SFF is probably a uATX form factor, and is 6.75 inches by 6.75 inches.
Or some variation thereof.
It's a custom size.


This means good luck in finding a computer case you can buy off of the shelf, and is large enough to install an ATX power supply.

You can get a custom one made, and you're probably looking at $150 to $200.

Or, you can modify one of these computer cases VERY easily,

1) http://www.directron.com/cs888uvbl.html

The above is an Acyrlic plastic computer case. It's approximately 1/4 inch thick for the case walls, bottom, and top.

VERY sturdy.

It has metal Standoff's that are set up for an ATX motherboard.

It should have holes in the case where a Micro-ATX motherboard can be mounted, by unscrewing the Standoffs, and screwing them into the Micro-ATX holes.

[A Standoff is a piece of metal that is hex shaped, and has a threaded hole in one end, and a threaded end on the other side ]

If there isn't the proper holes for mounting your motherboard, you make the holes.
The case is plastic.

Uses an ATX power supply.
The cost of the case is $50

Mar 08, 2010 | HP RT810UTABA - HP dc7700 small form...

1 Answer

looking to build using hp 5716 case. need to know where to find out what mb will fit case.


The size of a motherboard, is the Motherboard Form Factor.

I'm willing to bet the Presario 5716 uses the Micro-ATX form factor, but could be wrong, and it could be the ATX form factor.

I base this belief on the factor, that I think the Presario 5716 uses a Mid Tower size of computer case.

The motherboard Micro-ATX form factor size, is 9.6 inches by 9.6 inches.
(9.6 inches is about 9 and 5/8th's inches.
5/8th's of an inch = .625)
Metric conversion for the above is 244mm by 244mm)

The ATX form factor size is 9.6 inches by 12 inches. (244mm by 305mm)

Inside the computer case is a Support Plate. The Support Plate, is what the motherboard screws down to.
Sometimes it's a separate piece, but for the Presario 5716 it's probably riveted to the case.

Looking at the Support Plate, you may notice the abbreviations mATX, and ATX by the motherboard mounting holes on the Support Plate.

mATX standing for Micro-ATX, and ATX standing for the ATX motherboard size.
This will be more readily spotted with the motherboard removed.

If so you can use either form factor of motherboard. You may Not be able to reuse the I/O plate, (I/O Shield), at the rear of the computer case. (Input/Output shield - plate)

The shiny rectangular, thin piece of metal, that covers the I/O ports. (Examples: Mouse, Keyboard, and Monitor to name a few I/O ports)

This rectangular plate pops out with a BIT of persuasion. The new motherboard should come with it's own matching I/O Shield.

WARNING!

The inside edges of the computer case, where the I/O Shield is mounted, are SHARP!! Use extreme caution, and perhaps gloves to remove the I/O Shield.

Once the old I/O Shield is removed, it is readily apparent of how to install the new one, and could avoid possible confusion of me trying to explain here.

Sometimes the I/O Shield that comes with the new motherboard is not a direct replacement, as to fitting in the existing rectangular hole, in the computer case.
In this instance, a little modification is in order to the computer case.
(IF so, remember to smooth the edges with a file)

This link to Wikipedia explains the motherboard form factor pretty well, and also has photos, and charts,

http://en.wikipedia.org/wiki/Motherboard_form_factor

(You can click on any photo to enlarge it. There is a chart at the bottom of the page)

Now you know,

A) Motherboard Form Factor
You can measure the old motherboard for it's size, and know what form factor it is.

B) Support Plate, and the mATX, and ATX designations that may be stamped, or printed near the motherboard mounting holes, on the Support Plate.

If the old motherboard is not obtainable, you can look for the above designations, to see what motherboard form factors apply.

You can also use a tape measure, and measure the distance in-between the mounting holes, and obtain a rough guess.
It won't be that rough a guess, when differentiating between 9.6 inches, and 12 inches.

C) When looking at a website that sells motherboards, you can look in the specifications description, and look for the designation ATX, or MATX, to see if that particular motherboard will fit in your Presario 5716 computer case.

(mATX, and MATX = Micro-ATX)

As for buying a motherboard that will equal the specifications of your old motherboard, good luck.

You can buy an exceedingly cheap motherboard now, that will outperform your old one, like a dragster flying by a snail, in comparison.

You won't be able to reuse the old Processor, and is doubtful that you can reuse the Ram Memory.

The Ram Memory, is SDR Sdram, that operates at a frequency rate of 100MHz FSB. (PC100)

(Single Data Rate Sdram is commonly just referred to as Sdram. Speed is slang for Frequency Rate)

The Processor, is either an Intel Pentium III that fits in a Slot 1 processor socket, or the Pentium III type that fits in a Socket 370 processors socket.

The Pentium III processor, that fits in a Slot 1 processor socket, is about 5-1/4 inches long, and 3 inches tall. It should have a black plastic case around it. Thickness is around 3/4th's of an inch.

The Pentium III processor that fits in a Socket 370 processor socket, is about 1-1/2 inches by 1-1/2 inches, and is square.

The Pentium III processor used in the Compaq Presario 5716 operates at a maximum frequency rate of 450MHz. (MegaHertz)

This gives you an indication, of what a Pentium III Slot 1 processor looks like,

http://www.cpu-world.com/CPUs/Pentium-III/Intel-Pentium%20III%20450%20-%2080525PY450512%20%28BX80525U450512%20-%20BX80525U450512E%29.html

Feb 02, 2010 | Compaq Presario 5716 PC Desktop

2 Answers

what form factor is the motherboard


The form factor of a motherboard determines the specifications for its general shape and size. It also specifies what type of case and power supply will be supported, the placement of mounting holes, and the physical layout and organization of the board

Oct 28, 2009 | E-Machines T2240 PC Desktop

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