My approximately 5 year old Dell has died after a power outage. Pressing the power button does nothing. With the 24 pin connector disconnected from the motherboard, shorting the green wire to the black wire next to it brings the power supply to life. So I conclude I need a motherboard.

It's a Dell Inspiron 570. According to Dell the model number of the motherboard is 4N3H3. All I can find online for the 570 is model number 4GJJT. I know there are different versions of the 570.

Does anyone know where I can find the 4N3H3?

Thanks.

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The Universe is not only stranger than you imagine, it's stranger than you can imagine.

SETI@home classic workunits 1,405 CPU time 57,318 hours

I would say that it sounds like a great time to search eBay for a quad core and do an upgrade.

Before you splash out on a new motherboard try:
With the 24-way connector plugged in connect the green and black pins (a paper clip will do), does the PSU start and the computer burst into life?



(I had a computer work with its front panel failed and used to have to boot it with a switch across those pins, it ran like that for a couple of months until it was replaced as part of an upgrade program.)

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Bob Smith
Member of Seti PIPPS (Pluto is a Planet Protest Society)
Somewhere in the (un)known Universe?

...and always try another NEW motherboard-battery...

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My approximately 5 year old Dell has died after a power outage. Pressing the power button does nothing. With the 24 pin connector disconnected from the motherboard, shorting the green wire to the black wire next to it brings the power supply to life. So I conclude I need a motherboard.

It's a Dell Inspiron 570. According to Dell the model number of the motherboard is 4N3H3. All I can find online for the 570 is model number 4GJJT. I know there are different versions of the 570.

Does anyone know where I can find the 4N3H3?

Thanks.

Do you need a dell motherboard? You could always put in a name brand board in the same form factor. I have an e-machines case that has an asus board in it now.

Here are some micro atx boards. I think you will need to upgrade to DDR3

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My approximately 5 year old Dell has died after a power outage. Pressing the power button does nothing. With the 24 pin connector disconnected from the motherboard, shorting the green wire to the black wire next to it brings the power supply to life. So I conclude I need a motherboard.

It's a Dell Inspiron 570. According to Dell the model number of the motherboard is 4N3H3. All I can find online for the 570 is model number 4GJJT. I know there are different versions of the 570.

Does anyone know where I can find the 4N3H3?

Thanks.

Do you need a dell motherboard? You could always put in a name brand board in the same form factor. I have an e-machines case that has an asus board in it now.

Here are some micro atx boards. I think you will need to upgrade to DDR3

Dell often uses a different PSU pinout or a different sized connector from standard for the MB. I have seen adapter cables but only for using a standards PSU with a Dell MB. Maybe someone does make a cable to go the other way.

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Dell often uses a different PSU pinout or a different sized connector from standard for the MB. I have seen adapter cables but only for using a standards PSU with a Dell MB. Maybe someone does make a cable to go the other way.

By the time that model was released Dell had stopped using their oddball wired PSU's. ;-)

Cheers.

Dell often uses a different PSU pinout or a different sized connector from standard for the MB. I have seen adapter cables but only for using a standards PSU with a Dell MB. Maybe someone does make a cable to go the other way.

By the time that model was released Dell had stopped using their oddball wired PSU's. ;-)

Cheers.

Some of the newer Dell Optiplex systems I had at work were still using the smaller PSU connector. I didn't check to see if they were still using odd wiring or not. Just one of those things to make sure to watch for if mixing OEM and standard parts.

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SETI@home classic workunits: 93,865 CPU time: 863,447 hours
Join the [url=http://tinyurl.com/8y46zvu]BP6/VP6 User Group[

...and always try another NEW motherboard-battery...

I thought the battery was for cmos ram and the real time clock. Can a bad battery make the motherboard refuse to power up?

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The Universe is not only stranger than you imagine, it's stranger than you can imagine.

SETI@home classic workunits 1,405 CPU time 57,318 hours

...and always try another NEW motherboard-battery...

I thought the battery was for cmos ram and the real time clock. Can a bad battery make the motherboard refuse to power up?

No. You can boot with the battery completely out if you wanted to.

For comparison.

The empty box being purchased here meant for a replacement when it comes to the discs being installed using Windows XP needs a power supply, processor, motherboard, RAM memory, graphics card and also possible internal cabling for the discs and other external units.

Also should be remembered the separate thin cables directly connected to the system box itself when it comes to the diods for speaker, discs and the like.

The battery should be included on the motherboard in order to contain cmos ram and the real time clock, as being mentioned.

If the power supply only makes a ticking or clicking sound, you should suspect a failure in this unit.

Also it is having fans which should turn around, giving an indication that power is present.

Never open a power supply!

Leave such a thing to an electronics expert. I have seen a complete charge empty from the end of a cable connected directly into the wooden stool the box was standing on and this gave me respect for such things, even though it was not plugged into the power outlet.

Also a light diod could be present on a power supply, but whether or not this helps when it comes to the motherboard itself is another thing.

If you connect the power supply to the motherboard using the 12 V main connector, it should be working if both the power supply and the motherboard is doing the same.

Next you should be assuming that the processor and also the RAM memory modules are working as well.

Also you will never know if a thing is working unless you also install a graphics card and next connect to a monitor using a cable.

Some larger systems, including the one currently being used is having a separate or additional power outlet on the motherboard. Before connecting this cable, nothing came up on the monitor and the system was completely dead.

Older PC's made a ticking sound when RAM memory was being tested when booting up. This is not so anymore, making things slightly more difficult when having no monitor attached.

Therefore, if things are not working, assume first power supply, next motherboard, processor and finally RAM memory.

Also, a single pin in one end of the cable for the graphics monitor broke, making me unable to watch a single thing on the screen.

This should be the main things when trying to solve such the problems being mentioned.

Can a bad battery make the motherboard refuse to power up?

What amount we are talking about ? About 20 cents ? for real ?

Thought about a new mainboard it will cost 20 to 40 Dollars i think.

Give it a try ! I had severaly boards they wont boot up without battery, even doesnt start the PSU.

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Can a bad battery make the motherboard refuse to power up?

What amount we are talking about ? About 20 cents ? for real ?

Thought about a new mainboard it will cost 20 to 40 Dollars i think.

Give it a try ! I had severaly boards they wont boot up without battery, even doesnt start the PSU.

I happened to have the right battery handy, so I tried it. No joy.

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The Universe is not only stranger than you imagine, it's stranger than you can imagine.

SETI@home classic workunits 1,405 CPU time 57,318 hours