Question about ASUS P5S800-VM Motherboard

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Didn't connect the 4 pin ATX

Hey guys,

I've just swapped computer cases - straight swap, no new parts - and forgot to replug the 4 pin ATX power cable before plugging it in. I plugged it in for about three seconds - twice :-( - and now my computer is not booting up. I've no idea what to do now, I've disconnected and reconnected all cables again, I've tried a boot disk and I've tried clearing my RTC RAM. I didn't expect any of these to work, and wasn't disappointed.

My computer has been booting up for between 2 and 10 seconds, then turning itself off. The longest single boot followed the clearing of my RTC RAM, but this could just be coincidence.

How do you fix this mistake? Does anyone know of a solution?

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Just a guess, but I had a similar problem with an Asus board. I finally tracked it down to the power on/off switch sticking on when I tried to turn the machine on. Under normal circumstances it only engages for a short time and is then released. If the button is held in continuously then the PC tries to start and almost immediately shuts down.
Not sure why though.

Posted on Apr 04, 2008

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Swapped power supply and not sure if i connected everything


This guide shows a lot of the possibilities for any PC.
http://www.fonerbooks.com/r_power.htm
Basically there are only three important connections: The main ATX connector - usually 24 pin, plugs into motherboard at the edge near the memory slots [it's a 24 pin on your m/b]; the CPU power - plugs into the motherboard, 4 pin (square) [your m/b has the square 4-pin type, I think it's near the 'M' of the MS-7623 label], or 8 pin (4 x 2) on newer computers - and the hard drive power, usually a flattish 15-way connector (SATA) [your computer also has IDE capability, four in line pin connectors]. Your graphics card if present may need external power from your PSU, but seeing as you're not sure you've connected everything up, I'm assuming you don't have a graphics card.
The connectors are keyed so you can't put them in the wrong way round; do not force them, but they may be a bit stiff.
It would help if you told us the model of your PSU.
Be certain that the voltage input selector, if present, on the back (outside) of your PSU is set to the correct voltage.
(details of your m/b are given here
http://www.msi.com/product/mb/880GME41.html#?div=Detail)

23.April.2014

Apr 23, 2014 | MSI 880GM-E41 Desktop Motherboard - AMD...

1 Answer

SMPS CONNECTION DIAGRAM


Not a problem, but it would be handier to have the manufacturer Name, and Model Number.

(Back of computer on a sticker, next to the Windows product key, or up on the side of the computer tower )


SMPS = Switched-Mode Power Supply. The style used in personal computers now,

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

A) Main power cable:
There are three styles;

1) The old AT style that has two separate connectors. The connectors BOTH connectors have BLACK wires towards one side.

The connectors also have ONLY one way, (Direction), they can be plugged onto the motherboard.
This is due to the Lock, and Locating Tab on the motherboard connector/s, and the main power cables connector/s.

When you can plug the connectors on the motherboard, with both connector's BLACK wires facing each other, (They will be in the middle), you have them installed correctly,

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

2) The newer ATX style. Uses one power cable, and connector.
First style to come out was the 20-pin ATX main power cable,

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

20-pin ATX main power cable's connector, has a LOCK on one side.
This Lock locks over a Locating Tab, on the female motherboard connector.

To remove this power cable you squeeze in on the Top of the Lock.
The Lock operates like a see-saw on a playground. When you squeeze the top in, you remove it's hooked end away, from the Locating Tab of the motherboard connector.

To be ensured that this cable is plugged in tightly, and correctly, the Lock's hooked end will be over the Locating Tab, on the motherboard connector.

3) The newest style is the 24-pin ATX main power cable.
As computer hardware evolved, and became better, it demanded more power.
The extra 4 pins of the 24-pin ATX main power cable provided this,

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

[ Aftermarket power supply manufacturers, provide power supply's with a 20 + 4-pin ATX main power cable, usually.
You can use it as a 20-pin ATX main power cable, or use the additional 4 pin cable, and use it as a 24-pin ATX main power cable ]

4) Motherboard didn't provide enough power for newer Processors.
The 4-pin ATX +12 Volt power cable was brought out.
(Has Lock with Locating Tab on the motherboard connector, also)

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

5) Motherboard didn't provide enough power for high-end graphics card.
4-pin ATX +12 Volt power cable didn't help.
The 6-pin PCI Express power cable was brought out,

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

Plugs into a graphics card.

[ Note*
In all power cables, Red wires are 5 Volts. Yellow wires are 12 Volts. ALL Black wires are Ground wires ]

Next in line was two versions of the 8-pin power cable.

A) 8-pin EPS +12 Volt power cable.
Originally brought out for server computers, that has multiple Processors.
Plugs into the motherboard.

B) 8-pin PCI Express power cable.
Brought out for more power, than a 6-pin PCI Express power cable could put out.
Plugs into a graphics card.

(6-pin PCI Express power cable is capable of handling 75 Watts.
8-pin PCI Express power cable will handle 150 Watts )

If you have an IDE (PATA) harddrive, a 4-pin standard Peripheral power cable is what you need. ('Molex' is the slang term for it's connector)

If you have a SATA harddrive you need a 15-pin SATA power cable.

NOTE*
IF, your SATA harddrive has a provision for a 4-pin standard Peripheral power cable, AND a SATA power cable;

ONLY USE the SATA power cable!

If you use both you will burn out the harddrive. Maybe not immediately, but I assure you down the road you will.
(Do not use just a single 4-pin standard peripheral power cable, either)

Optical drive/s use a 4-pin standard Peripheral power cable, if they are IDE (PATA) units.
If they are SATA units they use a SATA power cable.

The old Floppy Drives use a 4-pin small Peripheral power cable.
Same cable plugs into a Card Reader, also.

The plastic front of your computer is the Front Panel.

The area of contact pins on the motherboard, that the cables, (Wires), from the Front Panel go to, is the Front Panel header.

Sometimes abbreviated on the motherboard as;
F_PANEL 1, or FP1, etc.

I will need to know the computer manufacturer name, and Model Number, (HP = Product Number, or P/N), or the manufacturer name, and Model Number of the motherboard, to TRY to provide this information.

Post back in a Comment.

Regards,
joecoolvette

Apr 12, 2012 | Computers & Internet

4 Answers

Conections


Hi peju90,

If you've gutted out the old dell computer, then your only talking about a empty case. Put all the right chips and cpu's that the Asus board requires, and you should have no problem with the CD rom or any other hardware. Except if you try and put the hard disk from the dell, it will not have the same configurations, and probably be a bit crazy. But, reformat the drive to it's new board, and your home free.

The power connections will be the same as it was on the old Presario, if you have the old power supply then nothing changes on that. You'll need to hook up the front connectors for USB and Hard drive lights, reset etc, but that would be the ugliest senario. Meaning the csse fit a special connector that the board doesn't carry. In that case you to option, either cut the special connectors and replace them with the ones from the old Presario case, or don't connect them, all but the power, you're gonna need that hooked up, one way or the other.

But, that's as tough as it gets my friend. A case is a case is a case.

Good Luck

Mark

Oct 17, 2009 | Computers & Internet

1 Answer

E210882 socket type 775, PCIe, DDR2 - Will not turn on


Hi,
On the Dell board, the
CORRECT pinout for J8H1 is as follows:

1-3: HD LED (#1 is +)
2-4: PWR LED (#2 is +)
5-7: PWR ON/OFF
6-8: RESET
5,16: +5V
10,11,14,15: not connected
12,13: GND


Regards.

Jul 27, 2009 | Dell (E210882) Motherboard

1 Answer

I purchased a zion 2 case and I cant figure out the fan plugs because the plugs are like the ones use for cd burners to power themup


To connect the power cable, just take the 4-pin connector coming from the fan and connect it to any 4 pin connector coming from the power supply. you can then use the 4-pin connector to power a cd/ dvd drive or ATA hard drive
~gnomer

Jan 31, 2009 | XION II Mercury (XON102) ATX Mid-Tower...

1 Answer

Swapped mother board


Hi Paul,
see page 8 number 15 for location. Than see page 19, System Panel Header in your manual.
The basic wire color's for positive are red, blue, green & can also be light blue, light green, light red.
Negative wires are usually white or black. Case wire colors do vary from case to case.
To see pin one shown on page 19, (positive + for hard drive led = HDLED+). Bottom row farthest pin to the left of set. Pin two is above pin one. Pin two is, PLED+ (known as power led). Pin 3 is to the right of pin one & is HDLED- (Hard drive led, negative). Pin 4 is above pin 3 & is also PLED-, (Negative for power led). ECT!
6781222.jpg If your new case has an internal speaker (Used for P.O.S.T, power on self test). This would connect to, Chassis Speaker Header located on page 8, number 16. Again, normally only two wires are used across the 4-pin connector. (One at each end of the connector).

To see ASRock's main site for the 775VM800 motherboard click this link:
http://www.asrock.com/mb/overview.asp?Model=775VM800&s=

Good luck Paul!
Run into a snag, just post the issue here.

Mike

Nov 02, 2008 | Asrock 775VM800 Motherboard

2 Answers

DOA


Sounds like you need a new power supply for your computer.

Jul 19, 2008 | Antec SP450 450W SmartPower ATX 2.0 20/24...

1 Answer

System and Processor fans don't spin- anything else is working


Your description indicates your power supply may be faulty or there is a break somewhere in the 24 pin main ATX cable wiring.
Swap out the power supply. Make sure your PSU has a 24 pin ATX connector & (not a 20) pin & a 4 pin ATX_12v connector for the CPU.

Feb 17, 2008 | Gigabyte GA-M61P-S3 Motherboard

1 Answer

Redundant hot swap psu's to EPS 12V (24-pin) ATX Power Supply


rpi.jpgthis is the psu
zalman.jpgthis eps 24 pin
as u can see the matter at hand can be preformed, as long as the fitting is compatable

Jan 29, 2008 | Computers & Internet

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