Question about Motherboards

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NO POWER My unit restarts every hour.  I tried tightening the connections of cables and peripherals but it still occurs.  When I tried disassembling to clean all the parts and returning them back, the PC performed normally.  But after a week, the PC started to restart again.  One morning, it does not turn on anymore.  I tried to change the battery and the power supply but it is still the same. What could be wrong on this?

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There is also the factor of the PC over heating and self shutdown so not to fry the CPU, North bridge. try replacing the heatsink with a better one or try and put more fans into the case. 

Posted on Nov 29, 2008

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Did you hear any beep? What's the brand/model of your motherboard? It could be a memory problem. I also experienced the same when i upgraded my memory module. Sometimes my system runs fine, but eventually it will restart... then could not open.

Try checking the memory size when your computer boots up. If it doesn't match on the total memory ram connected to your pc, then you must test each of your module (if you have many) and replace the faulty module by a new one.

Posted on Dec 18, 2007

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Won't Power On

  1. Remove all external peripherals/devices/equipment connected.
  2. Keep the power button pressed for at least 10 secs to let the system discharge any static electrcity.
  3. Check for any beep sound, if the fan is working or not (In case the fan is running, could be a dust problem.
  4. Try replacing or interchanging the RAM.

Let me know for any changes occurring so I could help more on this. If no changes occur then call for a technician.

Oct 30, 2013 | SuperMicro PDSBM-LN2+ Server Board -...

1 Answer

Emachine Wiring Diagram

What a Marvelous person!

You have described a 4-pin Peripheral power cable, ('P6'),

An IDE harddrive, of which the 4-pin Peripheral power cable example, is plugged into.
Another look at an IDE (PATA) harddrive,

However, I do not know if the flat IDE ribbon cable marked Slave, goes to a secondary Harddrive, or an optical drive. (CD/DVD drive)

Either way the point is moot. BOTH of those 'squarish flat black' units, HAVE a 4-pin Peripheral power cable to them.
Another hardware component, those type of power wires CAN go to, is a computer case fan.

However not ALL power cables have to be used. Sometimes there are extra ones. These are in case they are need later.

To summarize;
The optical drive, or drives; that you put a CD, or DVD disk in; can use a 4-pin Peripheral power cable.
(IDE/PATA optical drive)

Harddrive's can use a 4-pin Peripheral power cable.
(IDE/PATA harddrive)

A computer case fan may use a 4-pin Peripheral power cable.

Or the 4-pin Peripheral power cable you see, may simply be an extra one. One if needed in the future.

The eMachines T2245 uses a Trigem (Manufacturer), Imperial GLVE (Model name), motherboard,

Supports an IDE (PATA) harddrive, (Or 2 of them)
Supports an IDE (PATA) optical drive, (or two of them)

I DO hope you are following Anti-Static Procedures!

Your body carries Static electricity. Static WILL fry out (Short Circuit), the delicate hardware components inside a computer.
Relieve your body of Static, BEFORE reaching inside your computer.

Computer on a table, computer Unplugged from power, computer case open;
TOUCH an unpainted surface, of the metal frame of the open, empty computer case.
This action will relieve your body of Static.

IF, you leave your computer in the middle of working on it, be SURE to Touch the metal frame again upon your return.

Also I would like to add;

For additional questions please post in a Comment.

Apr 24, 2013 | eMachines Emachine T2245 Power Supply...

1 Answer

DX4820 power supply

To my knowledge, the Power Supply used is just the common ATX form factor design.

Approximately 6 Inches Wide, 5-1/2 Inches Long, and 3-1/2 Inches Tall.

Needs these power cables;

A) 24-pin ATX main power cable
Newer power supply's come with a 20 + 4-pin ATX main power cable.

That is so the power supply can be used on a motherboard, that needs a 20-pin, OR a 24-pin ATX main power cable.

B) 4-pin ATX +12 Volt power cable.
Often referred to as an ATX12V power cable.

[Note color of power cable connectors does NOT matter ]

Note the Lock on the side of the power cable's connector, and matching Tab on the motherboard connector.
The 20 + 4-pin ATX main power cable, and matching motherboard connector; has this type of Lock/Tab also.

C) Needs at least 2 SATA power cables.
The Harddrive is a SATA unit, and I believe the optical drive (CD/DVD drive) is too.

Often has a Lock on the connector. Press to release when installing, or removing.

D) Should have at least two 4-pin (Standard) Peripheral power cables.
Misnomered as 'Molex',

E) Needs one 4-pin (Small) Peripheral power cable, for the Card Reader.

Also needs 300 Watts.
A Power Supply like this one would work,

For additional questions please post in a Comment.

Apr 02, 2013 | Gateway mb.u1909.002 - Dx4820-05h System...

1 Answer

Suddenly stopped working ,won't restart my PC?

First of all disconnect all peropheral connected to your motherboard. Take out Your RAM and clean it with soft clothe. Reinsert ram and restart your PC. If you can get display at this point then shut down your PC connect all peripheral back and restart your PC.

If not you will need to replace your ram.

Nov 29, 2012 | Motherboards

1 Answer

How do I connect my sd card connector to the A785GMLE? I have an HP Media Center PC.

AsRock A785GMLE,

There are THREE USB headers on the motherboard, that have TWO USB connections for EACH header.

Just pick one that isn't occupied.

The power cable is a Small 4-pin Peripheral power cable.
Used in the past for a Floppy Drive,

[ It is deemed Small, because it is smaller than the Standard 4-pin Peripheral power cable.

Deemed a 'Molex' power cable erroneously. Molex was the first manufacturer of the plug, and it's design. Name stuck kind of like calling an open-end wrench, a Crescent wrench ]


Oct 24, 2012 | Asrock A785GMLE Motherboard

1 Answer

Gateway dx4822-01 power supply

Gateway DX4822 Desktop PC,

Just a regular Ol' ATX power supply. Rated at a maximum wattage rating of 300 to 525 Watts. Two different power supply options offered.

Power Supply case size is;
6 Inches Wide, by 5-1/2 Inches Long, by 3-1/4 Inches Tall. (152.4mm Wide, by 139.7mm Long, by 82.55mm Tall )

Has the following power cables;

A) 1 -> 24-pin ATX main power cable,

[ NOTE* Color of connector on power cable, OR motherboard, does NOT matter.

Proper connector, proper power cable, DOES matter; connector color does not matter ]

B) 1 -> 4-pin ATX +12 Volt power cable,

{ Power to the motherboard, and all components connected to it }

C) 2 or more -> SATA power cables,

{ Power to a SATA harddrive, and/or power to SATA optical drive/s.
(CD/DVD drive) Or power for an upgrade in the future, for a SATA optical drive }

D) 3 or more -> Standard 4-pin Peripheral power cables,

{ Power for an IDE (PATA) harddrive, or drives. Also power for IDE (PATA) optical drive/s. Plus power in some instances, for computer case fans }

E) Two or more Small 4-pin Peripheral power cables,

{ Listed as a Floppy Drive power cable. Back in the day when the article was written, such was true.
It can still be used for a Floppy Drive, but is more used now as a power cable for a;
1) Card Reader.
2) Computer case fans (IF needed }

It's name is Small 4-pin Peripheral power cable. It is smaller than it's larger cousin, the Standard 4-pin Peripheral power cable.

Also has smaller gauge of wiring. This means it cannot carry the same amperage, as the standard 4-pin Peripheral power cable.

I would recommend this,

A) 1 -> 20 + 4-pin ATX main power cable.
Can be used as a 20-pin ATX main power cable, or a 24-pin ATX main power cable, which is what you need.

B) 1 -> 4-pin ATX +12 Volt power cable.

C) 6 -> SATA power cables

D) 4 -> Standard 4-pin Peripheral power cables

E) 1 -> Small 4-pin Peripheral power cables

F) 1 -> 6-pin PCI Express power cable

G) 1 -> 6/8-pin PCI Express power cable.

In the future, (Or now if you have one), you can upgrade to a better graphics card, that needs an additional power cable, IF you wish.
The 6-pin PCI Express power cable.

You also have a 6-pin or 8-pin PCI Express power cable.
(6/8-pin PCI Express power cable)

All the pins can be used together, and make an 8-pin PCI Express power cable, for a very powerful graphics card that requires this cable.

Just added bonuses with today's modern power supply's.

For additional questions please post in a Comment.

Jul 04, 2012 | Gateway DX4822-01 Power Supply 575 Watt...

1 Answer

Where does P8 P9 connect?

The P8 and P9 power supply cables may not even go to anything.
The power supply cables coming out of the Power Supply, can be labeled, however that particular pre-built computer manufacturer, deems.

General labeling for the power supply cables is;

1) P1 - The 20-pin ATX main power cable, or 24-pin ATX main power cable.

2) P2 and P4 - The 4-pin ATX +12 Volt power cable

3) P3, P5, P6, P7, P8, and P9, can be used for a standard 4-pin Peripheral power cable, ('Molex'), or a small 4-pin Peripheral power cable, (Floppy Drives/Card Reader), or a SATA power cable.

Here, let me show you a basic example, looking at Power Supply cable connector markings, for the Dell Optiplex 745 Desktop PC,

Scroll down look under the subheading - DC Power Connectors

This link shows you the various power cables, and their respective connectors,

If the problem is a Tyan Trinity 400 S1854 motherboard, let's look at the power cables you need to connect;

To the right of the blue bold - Trinity 400 (S1854) - heading, click on the Manuals icon.

Scroll down to the chart that has - Socket 370 (Intel Celeron / Pentium III ), at the top. In the list click on the blue -

Trinity 400
[ Shows as Trinity 400 (Addendum)
You have the option to click on Trinity 400, or Addendum.
Do not click on Addendum at this time ]

This is a PDF file. The computer you are using now has Adobe Reader on it, which uses PDF files.

After you click on the file name (Trinity 400) it may take up to 30 seconds, before the first page comes up.
Using a medium speed DSL connection, it took 12 seconds just now.

(Wanted you to know, because you will be staring at a blank white page, until the first page comes up. Didn't want you to think the link doesn't work. The file is downloading in the background. The first page is the LAST to come up )

When you are staring at the cover sheet -

Tyan S1854 / Trinity 400 / Motherboard User's Manual / Revision 2.02 -

,bring your mouse cursor to the bottom/middle. The ghosted out navigation guide will now appear.
Go to the far right, and left-click on the Adobe PDF icon.
When you hover your mouse cursor over it -
Show Adobe Reader toolbar - comes up.

Easier to navigate around.
At the top, (Header), is the PDF file page number box. It is to the right of the Down Arrow.
To the right of it, is the Zoom In icon ( + ), and the Zoom Out icon.
( - )
Clicking on Zoom In increases the view size.
Clicking on Zoom Out decreases the view size.

Go to Page 13.
Bring the view size so you are looking at the entire motherboard illustration.
(For me it is 75 percent. I'm using a 26 inch RCA EN-V HDTV, as my main monitor)

You can use the Down Arrow to go page by page; Or,

1) Left-click once in the PDF file page number box.
Contents in the page number box will be highlighted in blue.
2) Type the page number (In this case -> 13)
3) Press the Enter key.

Page 13 is an illustration, Page 14 is a photo; Top View.

A) ATX main power cable.
It is a 20-pin ATX main power cable,

Looking at the illustration it is shown at the far upper right.
ATX power connector.
It is in-between ram memory Slot 3 (DIMM 3), and the Floppy Drive cable's connector.

That is the only power cable that connects to the motherboard.

B) Your IDE (PATA) harddrive, will use a standard 4-pin Peripheral power cable,

DOES NOT MATTER what P number is on it, as long as it is a standard 4-pin Peripheral power cable, you're fine.

In fact you may have some of these power cables left over. Roll them up out of the way, and tie them with a plastic zip strip.. The inside of your computer needs all the air flow it can get.
(Bread tie = NO. It has a metal wire inside. Do not recommend)

C) Your optical drive/s, (CD/DVD drive/s), are probably IDE (PATA) also.
Each one needs a standard 4-pin Peripheral power cable.
Again, DOES NOT MATTER what the P number is.

[ ]

You may have a computer case fan, (Or more than one), that has an adapter cable, allowing it to use a standard 4-pin Peripheral power cable, OR a small 4-pin Peripheral power cable, for power.

(In the Playtool link, the Peripheral power cable example, is a standard 4-pin Peripheral power cable.
The Floppy Drive cable example is a small 4-pin Peripheral power cable.

They are BOTH Peripheral power cables.
The Small, and Standard, are designations that allow you to immediately know what you are looking at.

Newer computers do not use a Floppy Drive. This power cable is usually used for a Card Reader. Hence the need to have a more standard designation, for these two types of power cables.

The Peripheral power cable has been mislabeled as a Molex power cable.
Molex was the first maker of this type of power cable CONNECTOR. The name stuck. Kind of like calling an adustable open-end wrench, a Crescent wrench )

Those small 4-pin Peripheral power cables, can be used for a myriad of devices. (Floppy Drive/s, Card Reader, power to a case fan, etc)

Again, as long as you find a device, that needs it, it does NOT matter what P number is on that power cable's connector.

A computer case fan is supposed to attach to FAN1.
The Brown three pin connector at the end of ram memory Slot 1.
(DIMM1) Power for the fan.

Same thing for the Brown three pin FAN4 connector on the motherboard, above the AGP expansion slot to the left, and to the right of the Game Port. (Joystick)

Same thing for the Brown three pin FAN3 connector, above the CMOS battery, and to the left of the VIA VT82C596B - Southbridge chip.

Same thing for the Brown three pin connector FAN2.
It isn't shown on the illustration, but is in the photo.
It is to the right of the Brown three pin FAN4 connector.

If all of your devices has a power cable, then P8 and P9 may not be used. Just extras in case you find devices that need them.

For additional questions please post in a Comment.

[Main thing is to have the jumpers on the motherboard, set to the correct setting.
Also, at the last make sure your ram memory module/s ('Stick'), are plugged in tightly. You can accidentally bump them loose, when plugging power cables in ]

Jul 02, 2012 | Tyan Trinity 400 S1854 Motherboard

1 Answer

Is there a schematic somewhere that shows how to plug these things in? I may be short a cord Thanks! Jack

First thing to plug in are the Power Supply cables.

The main one to start with is the ATX main power cable.
There are two main variations of the ATX main power cable.

The 20-pin ATX main power cable,

,and the 24-pin ATX main power cable,

The 20-pin version was used on the older model computers. It was found that more power was needed to the motherboard due to newer computer components, and four extra power wires were added.

In the center photo note the lock on the side of the connector. It operates in a see-saw fashion. The top is squeezed in, to release the hook of the lock from a tab on the female connector, on the motherboard. Then the male connector can be removed from the connector on the motherboard.

Depending on the motherboard you may also have a 4-pin ATX +12 volt power cable. This is additional power to the motherboard, and is mostly used to provide additional power to a Processor.

Note the lock on the side of the connector. It operates in the same fashion as the ATX main power cable's connector.

Peripheral devices inside the computer also require a power cable.
If you have an IDE, (Also known as PATA), harddrive it will require a 4-pin standard Peripheral power cable.
Commonly misnomered as a Molex power cable,

This power cable is also used on IDE type optical drives. CD or DVD.
It can also be used along with an adapter cable to power a computer case fan.
There is no lock, but there is only one direction the cable will plug in.
There are two rounded corners on one side of the plug to line it up.

On all power cables use the connector itself to unplug the cable, Not the wires!

(Sometimes unplugging a 4-pin standard Peripheral power cable is tough.
The connector is rocked side to side while removing.
Sometimes an additional tool is needed to EASE the connector out.
In all cases make sure the computer is unplugged from power BEFORE working on it, and assure that you are following Anti-Static Precautions)

You may have a SATA harddrive, and also you may have SATA optical drives. (CD or DVD drive)
They use a SATA power cable.
The SATA power cable has 15 pins.

[Note a SATA data cable has 7 pins. It is the shorter of the two cable connectors]

IF you have a SATA harddrive that has provisions on the back of the unit, to plug BOTH a SATA power cable, and a standard 4-pin Peripheral power cable, ONLY use the SATA power cable!

Using both power cables will burn out the harddrive.
Sometimes it doesn't happen right away, but it eventually will.

The last power cable I will mention here is the 4-pin small Peripheral power cable.
On older computers this power cable was used on a Floppy Drive.
Now more used to provide power for a Card Reader.

Additional information to be included in a Comment.

May 29, 2011 | Motherboards

1 Answer

The system cannot detect the device, please confirm that the device is configured properly and restart the set up program

One bad lead can cause a computer to continue on a cycle or to shutdown or fail to detect your hard drive
Test the leads that attach to your ((hard drive from the motherboard)) or replace all the leads that attach to your hard drive including electrical extensions + IDE,SATA and the ones that attach from your ((motherboard to hard drive))
make sure all leads that are attached to your drives dvd\cd 3 1/2 inch floppy have secure connections and are not faulty even the electrical extensions or just replace them they are probably old and faulty a computer needs its connections to have an end so any faulty leads will end up with a computer error
go into control panel administrive tools computer management then select event viewer depending on what operating sytem you have this may vary
extend the events there you will see errors in red you will no what exactly what the error was and at what time it occured you might have to uninstall then reinstall the program and its files
If it's a ntdll.dll error the ntdll.dll error only displays when you use a specific software program,
uninstall the program, reboot your computer, and then install the latest version again from scratch.
until you know what the problem is you cant fix it or you might try
you could run the check disk utility
click start run type cmd then type chkdsk/r/f which will scan for and attempt to repair any bad sectors and automatically fix any corrupt files on your hard drive this should schedule to happen when you restart your computer then defragment your hard drive

A Device I/O Error is an error that occurs as a result of using a peripheral device such as a printer or external hard drive. I/O means an input or output error that is caused by a driver that is outdated or not yet enabled. The device driver is a necessary component for allowing your operating system to control and communicate with the peripheral device. When a Device I/O Error occurs your PC is unable to set up the software that is needed to configure the device driver and operate the peripheral unit.control panel administrive tools ,computer management ,device manager any yellow? ! question marks or red x will tell you that you need to reinstall the driver/sto do this right click on the ? x ! select reinstall driver

Jan 13, 2011 | ASUS Motherboards

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