Question about ASUS A7S333 Motherboard

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Main board won't power up

I have an a7s333 main board that will not power up. The atx power supply and power switch are fine. When the atx power is first turned on, when the power switch is pressed the board poweres for a moment, there is an audiable click and it loses power. Nothing will hapen after this unless the atx powere is turned off and on again. I had a quick look and don't see any burnt or swollen capacitors but i have not checked them.

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I would start by removing all of the cards on the mobo, add 1 and reboot, rinse and repeat until you find the bad card, even the ram which I would start with myself, I have had an agp card do this to me.
Like to know where the click is coming from. When you say the power supply is fine, how can you be sure? May fail under a load. Not the only solution to be sure, but a good place to start.

Posted on Jan 24, 2009

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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.

http://www.playtool.com/pages/psuconnectors/connectors.html#atxmain20plus4

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.

http://www.playtool.com/pages/psuconnectors/connectors.html#atx12v4

[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.

http://www.playtool.com/pages/psuconnectors/connectors.html#sata

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',

http://www.playtool.com/pages/psuconnectors/connectors.html#peripheral

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

http://www.playtool.com/pages/psuconnectors/connectors.html#floppy

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

http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=899123&CatId=1079

For additional questions please post in a Comment.
Regards,
joecoolvette

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

1 Answer

Can i buy a pwer button for motherboard msi 1076820474446


No search hits come up on MSI 1076820474446.

All you need is an ATX Power On switch, if the Power Supply is an ATX form factor,

http://www.directron.com/atxswitch.html

If the Power On switch does not connect to the motherboard, then it isn't an ATX power supply you are using.

The Power Supply is an AT style.
Has a built-in power switch.

Or I can also show you this,

http://www.playtool.com/pages/psuconnectors/connectors.html#oldpc

Two main power cables plug into the motherboard. Power Supply has it's own power switch built-in.
A steel rod from the Power On button pushes against the switch.

1) http://en.wikipedia.org/wiki/Computer_power_supply

2) http://en.wikipedia.org/wiki/Switched-mode_power_supply

3) http://www.howstuffworks.com/power-supply.htm

For additional questions please post in a Comment.
Regards,
joecoolvette

Jul 30, 2012 | Motherboards

1 Answer

I triger power switch but dose not work mother board


Check to see if the problem is the Power On switch, or the Power Supply.
Bypass the Power On switch.

http://www.supermicro.com/products/motherboard/Xeon/GC-LE/P4DL6.cfm

[For the motherboard user manual;
Go to the heading, to the upper right in blue - Links and Resources.
{Don't believe we can use the Ampersand on here. Let's try & }

In the list below it click on - Motherboard Manual
Click on the blue - [ Download ] for the second file listed.
MNL - 0660 (English)
P4DL6 / P4DLR / P4DLR+ ]


The SuperMicro P4DL6 motherboard can use a 20-pin ATX main power cable, OR a 24-pin ATX main power cable.

Suggest you use a Power Supply, that has a 24-pin ATX main power cable.
Why?
A 20-pin ATX main power cable, does NOT provide enough power to the motherboard.

General example of a 20-pin ATX main power cable, and it's respective connector on the motherboard,

http://www.playtool.com/pages/psuconnectors/connectors.html#atxmain20

[NOTE*
Color of the connectors does NOT matter ]

General example of a 24-pin ATX main power cable, and it's respective connector on the motherboard,

http://www.playtool.com/pages/psuconnectors/connectors.html#atxmain24

Note the additional power wires.
3.3 Volts (Orange), 5 Volts (Red) { 2 of them }, and a Ground wire. (Black)

Which type of ATX main power cable are you using? Don't know. You haven't stated it.

For both,....look at the Green wire. This is the Soft Power On wire.
(Abbreviated as PS_ON)
A jumper wire is used to jump from the Green wire, to ANY Black wire.
ALL Black wires are Ground wires.

Go to the link with the 24-pin ATX main power cable, in it.
Look at the photo to the far right. See the Green wire?
See all the Black wires?

The preferred jumper wire is a paper clip, straightened out, then bent into a U-shape. The middle of the U is wrapped a few times, with black plastic electrical tape. This taped area is for your fingers, and thumb to hold onto.

Turn the U over. Taped middle is up. There are now two 'legs'.
These legs go down into the socket holes, of the Green wire, and ANY Black wire.

One 'leg' down into the socket hole of the Green wire, the other 'leg' down into a socket hole with ANY Black wire.
The 'leg' of the jumper wire, goes down RIGHT NEXT TO the wire already in the socket hole.

The 'leg' has to go down into the socket hole, (Next to the wire already in the socket hole), pretty far.
It has to go past the insulation of the wire, and touch a metal terminal, that is on the end of the wire.

Look at the middle photo. Here you can see the metal terminals, in the socket holes.

Again, Power Supply plugged into power. ATX main power cable plugged into the motherboard, just like the photo to the far right.
The jumper wire makes a contact of no more than 2 seconds.

(Stick the jumper wire down in the socket holes, no more than 2 seconds, then pull it out.
The ATX power on switch is a Momentary Contact Switch )

Power supply comes on? You have a bad Power On switch,

http://www.directron.com/atxswitch.html

Power supply does NOT come on? You have a bad Power Supply.

For additional questions please post in a Comment.
Regards,
joecoolvette

Jul 01, 2012 | SuperMicro SUPER DL6 (P4DL6) Motherboard

1 Answer

What pins are the switch to turn on power supply continuously


Pins 16 and 17 for a 24-pin ATX main power cable connector, and Pins 14 and 15 for a 20-pin ATX main power cable connector.

1) 24-pin ATX main power cable and it's respective connector,

http://www.playtool.com/pages/psuconnectors/connectors.html#atxmain24


2) 20-pin ATX main power cable and it's respective connector,

http://www.playtool.com/pages/psuconnectors/connectors.html#atxmain20

Just remember; The Green wire is the Soft Power On wire, (PS_ON)

ANY Black wire is a Ground wire.

A jumper wire is used briefly to touch the green wire to ANY black wire.

The preferred jumper wire is a paper clip because of it's size. (Diameter)

The jumper wire goes down into the BACK of the connector, RIGHT NEXT TO THE EXISTING WIRE that is already in there.

The BACK of the connector is where the wires go in. (In the links above look at the photo to the far right)

The 24-pin, or 20-pin ATX main power cable, is plugged into the motherboard.
The Power Supply is plugged into power.

The jumper wire goes down into the socket hole, right next to the existing wire, and far down in the socket hole.
It has to touch a metal terminal that is in the FRONT of the connector.
Each wire going into that connector has a metal terminal at the end of it.

Black plastic electrical tape is wound around the middle of the U shaped paper clip.

Use the jumper wire and the Power Supply comes on?
You have a bad Power On switch.

Power Supply does Not come on?
You have a bad Power Supply

Sep 17, 2011 | Motherboards

1 Answer

My motherboard is getting power from a 450w smps coz the board LED gets on when I switch on the ups. But pressing the power button on the cabinet does not switch on the system. Please help!!!!


From your diagnoses you may have a bad Power On switch, or a bad Power Supply.

Reasoning?

An ATX power on switch is connected to the motherboard's Front Panel header.
From there the circuit is continued through the ATX main power cable, and into the Power Supply.

The Power On switch connects the Soft Power On wire, to Ground.
(The Soft Power On wire is abbreviated as PS_ON. The wire is Green)


If the Power On switch is bad the Power Supply will not turn on.


A bad Power Supply will have a weak voltage power rail, (Or more than one)
Enough power to light LED lights, and perhaps spin fans, but not enough power to turn the Processor on.
No Processor operating, no computer.

1) If all of the LED lights were on at once, they would use less than 1 Watt of power.

2) EACH fan uses 2 to 3 Watts.

3) A typical Processor can use from 51 to 125 Watts. Depends on what Processor it is.
(Older Intel Pentium III's, and comparative AMD processors used less than 51 Watts)

You may have enough power to light that LED light, but not enough to spin fans, or turn the Processor on.


There is a simple test to see if the problem is the Power On switch, or the Power Supply.
Bypass the Power On switch.

A jumper wire is used to temporarily connect the Soft Power On wire to ANY Ground wire.
The connection is made at the Back of the ATX main power cable's connector, with the ATX main power cable plugged into the motherboard, and computer plugged into power.

1) The Asus M2N-MX (And SE version) motherboard uses a 24-pin ATX main power cable.

http://www.asus.com/Motherboards/AMD_AM2/M2NMX_SE_Plus/

This is one example of a 24-pin ATX main power cable, and it's respective connector on the motherboard,

http://www.playtool.com/pages/psuconnectors/connectors.html#atxmain24

Looking at the photo to the far right, shows the 24-pin ATX main power cable plugged into the motherboard.
This is the position for the test.
(Computer also plugged into power)

The BACK of the connector is where the wires go into the connector.
The jumper wire is used on the Back side of the connector.

One end of the jumper wire goes down into the socket hole with the Green wire.
(Soft Power On wire)
The other end of the jumper wire goes down into ANY socket hole with a Black wire in it.
ALL Black wires are Ground wires.

The jumper wire goes down into the socket hole RIGHT NEXT TO the existing wire.
The jumper wire MUST go down into the socket hole far enough to touch a metal terminal.

At the end of every wire going down into the ATX main power cable's connector, is a metal terminal.
The metal terminal is pretty far down in the socket hole.

The preferred jumper wire used is a paper clip.
The paper clip's diameter is small enough, to go right next to the existing wire in the socket hole, and touch the metal terminal.

The paper clip is straightened out, then bent into a U-shape.
The 'legs' of the U-shape go down into the two socket holes.
The middle is wrapped with a few wraps of black plastic electrical tape.
The taped area is for your finger, and thumb to hold onto.

The voltage is 5 Volts DC.
Two D cell flashlight batteries produce 3 Volts DC.
There may be a small spark when you make the connection, advising you in advance.

The connection made is no longer than 2 seconds.
(The Power On switch is a Momentary Contact Switch)

Computer comes on, (Power Supply actually) you know you have a bad Power On switch.
Computer does Not come on, you know you have a bad Power Supply.

For additional questions please post in a Comment.
Regards,
joecoolvette

Jul 10, 2011 | ASUS M2N-MX Motherboard

1 Answer

Jumper settings for an AMD 550 mhz K6-2 chip.


If you still have your manual, see page 19. Set CPU External bus frequency (100MHz) as shown & CPU to bus use 5.5x = 550MHz.
4e82fec.jpg

7e40332.jpg
You can download the manual here:
http://www.fic.com.tw/support/download.aspx?dl=motherboard%2fmanual%2fsocket7%2fva-503%2b%2fva-503%2ba4sh.zip&title=va-503%2ba4sh.zip&info=manual
There seem to be more setting after going over the manual.
Any of these power supplies will work with the FIC board. All come with the 20-pin ATX main power. Some come with 24-pin power connector that you just do not use.
As far as finding a power switch for an ATX power supply try looking to a Good Will store. Most places have old PC parts for sale cheep. or try here: http://www.trianglecables.com/atxcaspusbut.html
http://www.directron.com/switchat.html

Good luck skivvynine!
Hope you find all this helpful.
Mike

Dec 17, 2008 | FIC VA 503A Motherboard

1 Answer

What can I upgrade my Asus A7S333 to?


Well you can use this board. (New). PCChips M848A (v5.0)
http://www.tigerdirect.com/applications/searchtools/item-details.asp?EdpNo=2487805&body=MAIN#detailspecs

Asus A7N8X-E Deluxe (New).
http://secure.ncix.com/products/index.php?sku=11124

Not many NEW boards out there for the socket 462 CPU & DDR 333MHz. Plenty on Ebay & other sites used! (You do not need someone else's troubles.
You're current Asus board can be upgraded with a more powerful CPU.
Click on the link to see how high you can increase you're CPU. http://support.asus.com/cpusupport/cpusupport.aspx?SLanguage=en-us&model=A7S333

New in AMD box with 3 year warranty. For you're current MB.
http://search.zipzoomfly.com/?Key=Athlon+XP+2600%2B%28266FSB%29&Category=00&x=15&y=8

Good luck!
Mike

May 30, 2008 | ASUS A7S333 Motherboard

1 Answer

I work with my computer but no power signal in the board or even a beep to determine whether the error is the vid card or memory..


check your onboard capacitors for bloated caps and burnt resistors. if your power supply is ok, then its these problems on your board.

if youd like to DIY, have a ohm-meter by your side and start testing those board.

Apr 08, 2008 | ASUS A7S333 Motherboard

2 Answers

ASUS A7S333 upgrade solution


MPN: A7S333
Product Type: Motherboard
Form Factor: ATX
Width: 30.5 cm
Depth: 21.9 cm
Compatible Processors: Athlon, Duron, Athlon XP
Processor Socket: Socket A
Chipset Type: SiS745
Max Bus Speed: 266 MHz
BIOS Type: Award
Storage Controller: ATA-100



amd 3200 + anthlon ok with fsb 266 mhz soket a

Jan 10, 2008 | ASUS A7S333 Motherboard

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