Question about Foxconn P4M800P7MA-RS2 Motherboard

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Motherboard will not ground PC ON circuit to power supply. Can not find anybody that still sells this motherboard. Need to know what mother board that will be compatible with the P4M800P7MA RS2, memory P4 Processor And Power supply.

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I put one of these motherboards in a backup system of mine. It lasted about 6 months and went out. There are a lot of motherboards that will replace this one. The following are things you will need to look for in a new board: Whether you have a single or dual core P4, the front side bus speed of P4.And what type of ram (The new motherboard would have to run (DDR) since that is what this motherboard uses.) Most of the newer m/b will only have a single ide controller .If you have the need for two controllers you would want to make sure your replacement board has them.
You should be able to find a m/b on line easy. You might want to check
New Egg,Computer Geeks.com,Zip Zoom Fly,or maybe even Fry's.com.
I have found that these usually have the best prices.

Posted on May 16, 2010

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Posted on Jan 02, 2017

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Where is used -5v of atx power supply on motherboard asus P4P8X thanks


The amount of current provided at each voltage level is important because of its impact on determining the supply's ability to provide sufficient power for your system. That larger issue is discussed in a separate section. Here are the details on the various voltages provided by today's power supplies:

-12 V: This voltage is used on some types of serial port circuits, whose amplifier circuits require both -12V and +12V. It is not needed on some newer systems, and even on older ones not very much is used, because the serial ports require little power. Most power supplies provide it for compatibility with older hardware, but usually with a current limit of less than 1 A.

-5 V: A now archaic voltage, -5 V was used on some of the earliest PCs for floppy controllers and other circuits used by ISA bus cards. It is usually provided, in small quantity (generally less than 1A), for compatibility with older hardware. Some form factor power supplies such as the SFX no longer bother to supply it (systems using the SFX power supply are intended not to have ISA bus slots).

0 V: Zero volts is the ground of the PC's electrical system, also sometimes called common or (especially in the UK) earth. The ground signals provided by the power supply are used to complete circuits with the other voltages. They provide a plane of reference against which other voltages are measured.

+3.3 V: The newest voltage level provided by modern power supplies, it was introduced with the ATX form factor and is now found on the ATX/NLX, SFX and WTX form factors. It is not found in Baby AT or older form factors. Originally, the lowest regular voltage provided by the power supply was +5 V, which was used to provide power to the CPU, memory, and everything else on the motherboard. Starting with the second generation Pentium chips, Intel went to a reduced 3.3 V voltage, in order to reduce power consumption as the chips got faster. This required motherboard manufacturers to put voltage regulators on their boards to change the +5 V to +3.3 V. The regulators produced a great deal of waste heat and having to do this reduction on the motherboard was very inefficient, so now the power supply provides +3.3 V directly. It is used to run most newer CPUs, as well as some types of system memory, AGP video cards, and other circuits.

+5 V: On older form factor systems (Baby AT and earlier) , this is the voltage used to run the motherboard, the CPU (directly or indirectly) and the vast majority of other components in the system. On newer systems, many of the components, especially the CPU, have migrated to the lower +3.3 V described above, but the motherboard and many of its components still use +5 V.

+12 V: This voltage is used primarily to power disk drive motors. It is also used by fans and other types of cooling devices. It is in most cases not used by the motherboard in a modern PC but is passed on to the system bus slots for any cards that might need it. Of course, drives are connected directly to the power supply through their own connectors

Nov 19, 2016 | Computers & Internet

3 Answers

How to make a pc power unit work without a motherboard?


There are two pins on the atx connector you need to bridge. You can wire a switch to the pins too if you want so you can toggle on and off. Otherwise, there is a guy on eBay (seller id: antronst) that sells a connector with the pins already bridged with a on/off switch and a resistor wired in to provide some stability for five or six dollars.
Here is a diagram. Make sure it is a standard atx power supply. Some old Dells had goofy wiring.
http://www.techpowerup.com/articles/other/22

May 16, 2014 | Intel Acbel Power Supply Supports ATX 12V...

1 Answer

Hi My compuer won't boot up it has a msi km2m motherboard I heard 1 beep I changed the power supply and made sure the ddr was seated and tight now i get no beeps but does not display anything on the...


Hi,
Do this, first disconnect your memory into motherboard slot and then power on your PC. if you hear repeated beeping means no memory installed, the motherboard work fine. try to insert again your memory. if your memory are two pcs. insert only one memory and then power on again your PC. (only one by one insert memory for testing so you can trace if one of your memory was defective).
Try this,
Motherboard beeping troubleshooting guide.
(Note: before touching computer parts like motherboard, memory, video card and specially hardisk the very important parts of PC. discharge your static electric into floor ground or the case of your power supply. need also external PC speaker. if no onboard PC speaker ).
No beeps means short circuit, no power, bad processor, open parts or defective parts specially capacitor parts.
See this sample picture of capacitor leakage and defective.


8_13_2011_2_33_51_am.jpg
One beep means everything is normal the motherboard work fine.
Two beeps means cmos bios error and defective.
One long beep, one short beep means motherboard need tracing defective parts specially capacitor.
One long beep,two short beeps means videocard problem need tracing of parts CPU and blower fan for working good, also capacitor parts for leakages.
Three long beeps means keyboard error some key press stock up or modules parts defective.
Repeated long beeps means memory not detected, loose of defective
Continuous Hi-Lo beeps means CPU overheat or loose blower fan with heatsink into motherboard chassis.
Try this solution for your motherboard troubleshooting solutions.

Hope this information can help you.
Thanks for using fixya

Aug 12, 2011 | MSI KM2MCOMBOL-6738-010 Motherboard

1 Answer

Where is the circuit breaker on a e-machine T5048? The computer will not turn on (no power) I have replaced the power supply and same problem. I am wondering if it is a circuit breaker on the computer of...


There is no circuit breaker.

If you've already replaced the power supply, I'd say the problem lies with the motherboard. It's possible that the power switch is bad, but it's most likely the motherboard.

Feb 07, 2011 | E-Machines T5022 (RBT5022) PC Desktop

1 Answer

I recently had a power outage for about an hour. My desktop was protected by a surge protector. After the power came on, my computer won't power up and there's no power light. However, there is a blinking...


if the system will not power on, I would suggest a new power supply as the first troubleshooting option as they are about 1/3 the price of the motherboard. The Flea Power indication on the motherboard only indicates power is reaching the board, not if all needed voltages are being received.
Normally on a Dell, if you are getting power then when you attempt to power on, you usually get a power LED indication on the power button. Solid Green/Blue is normal, Flashing Amber is Power supply bus failure, Solid Amber is normally a motherboard.
If you haven't bypassed the UPS and connected direct to the outlet, I would try that 1st, as the UPS could be the failure too.

Dec 23, 2010 | Dell XPS 200 PC Desktop

1 Answer

I need to buy a soyo pentium3 7vba133u motherboard. anybody have one to sell?


It is highly unlikely a Pentium 3 motherboard is available let alone a SOYO P3 motherboard.
Motherboards and desktop cases have standard mounting holes, I would suggest you buy a late model motherboard that suit your requirements and mount it in your desktop case. You need to be sure the ATX power supply is adequate power output.
Better still just buy a new computer, you don't need a buy a new monitor.
You can reuse the old hard disk and put it into an USB hard drive adapter case and use it as an external hard drive.

Dec 17, 2009 | Computers & Internet

2 Answers

Computer will not turn on. Power supply shows flashing green.


depending on the make of computer, a power supply cost's around $20.

Mar 12, 2009 | HP Media Center m1080n (PC099A#ABA) PC...

1 Answer

E-machine 5220 power up


Emachines have notoriously cheap power supplies. Often, while the power supply itself doesn't fail, it causes the failure of motherboard components, essentially trashing the computer.

Try the following:

First check and make absolutely certain that the power switch connector is properly connected to the motherboard. (Take standard grounding/safety precautions: wear a properly-grounded grounding strap, for example, when working with any internal components.)

Obtain a known-good power supply of equal or greater capacity to your eMachines PS and switch 'em out. 

If either of these fixes your problem, well and good. If not, the problem may be, as is all too common with eMachines power issues, a motherboard issue caused by the power supply.

Jul 16, 2008 | E-Machines eMachines Desktop PC

1 Answer

Hp pavilion a330


the simplest solution maybe just so simple... just a suggestion try unpluging the power connector to the motherboard then just press the power button to clear and shorted circuit and grounds then replug the motherboard power... if still no power try a new power supply.... better buy a new one than more parts will be damaged if you got a broken power supply.... how to check your power supply??? plug the power cord then use a hair pin to plug the red wire (wire in the middle) the just plug the other end to any black wire... if the fan of you power supply works your power supply still good to go... use some tester for the voltage values of wires...

Jan 23, 2008 | HP Pavilion a330n (Refurbished)...

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