Question about Dell PowerConnect 2024 (pct2024)

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Dead power supply in Dell PowerConnect 2024 Switch

Power supply is dead (from power issues in the building); can it be replaced/repaired?

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
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Posted on Jan 02, 2017

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tom19511
  • 1601 Answers

SOURCE: Woes with Dell

If the power light is steady amber, a device might be malfunctioning or incorrectly installed.

Disconect fan , see if it starts.

Posted on Jan 13, 2008

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pagebor
  • 2785 Answers

SOURCE: Dell Dimension 8300 flashing amber power light and dead pc

it seems *********** board is having problem plz send it for servicing

Posted on Aug 08, 2008

  • 14 Answers

SOURCE: Dell 1800FP Dark, No Power but power supply seems fine. Help!

I just repaired 3 1800FP's - all dead, no lights.
Firstly a dead 2AS01 is 95% of the problem, because some fool designer left out the protective zener diode - cheapness.
Mouser Electronics does not have this part, but lists it at 37 cents in lots of 2500, and gettable at $2.66 somewhere else.
You must also replace the two small value electrolytics near this IC, as some had an ESR of 40 where <0.5 is where it should be.
I suppose as the electro's dry out, the spikes can zap the IC. The quacks on ebay flogging 2sa01's alone, probably hope to sell you another one down the track (at a fat markup).

There are 2 'Sam Young 2200uf' electros that really should be replaced, with ESR or 2-30 ! Ideally replace ALL electros, as the others will be off - but those 4 as a minimum and using a jewelers loupe, resolder other joints on the transformer and anything that looks more dull silverish, than the rest. A 1 inch used and worn paint scraper will get the case open easy.

DANGER, CAUTION : Finally when refitting the inverter board, ensure the steel tab is over the TOP middle of the board facing away from the power socket (SO YOU CAN SEE IT) . The board sides in flat. It is possible to scew the board down with a slight bend, with the tab pressing over the pcb tracks - very , very bad!

Now all I need is for some kind soul to improve the fix by stating what the value of the missing zener should be.

PS. Just because the caps are not bulging does not mean they should be OK. Most wrecked 10 year old power supplies have better ESR's, so the electronics must be hot under the cover.
I have seen bulging caps with a GOOD ESR, and non bulging ones with an ESR of 47.

Canberra

Posted on Aug 28, 2008

  • 32 Answers

SOURCE: Performance Issue

thats not a big diffrence if you use a 24 port switch or if you use 48 port switch actually switch is used to a number of connection not for a internet speed that is use for a networking if you want to upgrade your configuration then you upgrade your ram and our hard dives configuration

Posted on Sep 19, 2009

joecoolvette
  • 5660 Answers

SOURCE: Dell Dimension 8200 does not power up.

1) It could be something as simple as the 4-pin ATX +12 Volt power cable isn't plugged into the motherboard.

The 4-pin +12 Volt power cable supply's power to an Intel Pentium 4, and above, processor.

Looks like this,

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

The connector can be Black or White in color. However, there will always be two Yellow wires, and two Black wires.
(Yellow is 12 Volts. Any Black wire is a Ground wire)

Looking at the motherboard with the Processor to the top, Ram Memory to the right, and the AGP graphics card expansion slot, towards the bottom.

The connector for the above power cable is white in color, and square shaped. (May be Black) It has four socket holes in it.

This connector is located in-between the Processor, and the AGP slot, towards the I/O ports on the motherboard.

This is Dell Support, and the Service Manual for the Dimension 8200,

http://support.dell.com/support/edocs/systems/dim8200/

On this main menu page left-click on - Technical Overview

Scroll down the page to the second illustration. (Under the heading - System Board Connectors and Sockets)

Where the arrow that points from, + 12VDC power connector (JC51), is the connector on the motherboard for the above power cable.

2) It could be something as simple as the Ram Memory modules, or module, has been jarred loose. (Ram memory 'Stick')

3) It could be that the Power On switch has failed.

There is a way to bypass the Power On switch to test if the switch is bad, or not.

This has been lightly touched upon already, but not fully detailed, and not in a safe manner.

There is always 5 Volts present at the Power Supply. When the 5 Volts are redirected to the Soft Power On part of the Power Supply, the power supply turns on.

The 5 Volts are redirected by the Power On switch. (Located behind the Power On button)

The Dell Dimension 8200 Desktop PC uses a 20-pin ATX main power cable connector.

This is a close up view of that style of connector,

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

View the photo to the far right. You will see a Green wire. This Green wire is the Soft Power On wire.

You will see many Black wires. ANY Black wire is a Ground wire.

If a jumper wire is touched briefly from the Green wire to Any Black wire, the power supply will come on.
(Provided the power supply is good)

The contact of the jumper wire, should not last any longer than 2 seconds.

There is a Spark involved, which is why safety guidelines should be implemented!

Advise using a wire that has insulation around it. Wire thickness, or gauge, should be close to one of those power supply wires.
Length approximately 3 inches.

The insulation is stripped back off of each end of the wire. Usually about 1/2 inch stripped off, will do.
The jumper wire is then bent into a U shape.

The jumper wire has to go in the socket hole of the Green wire, and Any Black wire.
The 20-pin main power cable connector remains connected to the motherboard. Just like in the photo to the right.

The photo to the right shows the back of the connector. The back of the connector is where the wires enter.
The front of the connector is plugged into the motherboard.

The jumper wire goes down in the socket hole, from the Back of the connector.
The bare wire ends must be long enough to touch a metal connector, that is way down in that socket hole.

My method:
Computer unplugged from power.
I twist both bare ends of the jumper wire until they are tight. One end goes down in the Green socket hole. I try to make sure it is a good connection, and will stay there by itself.

Then I plug the computer into power, and push the other end of the wire down into a socket hole, of ANY Black wire.

You just need a momentary contact.

4) For a time period Dell was a Proprietary computer manufacturer.
They wanted THEIR computer parts used in THEIR computers.

They switched the color code around on the 20-pin ATX main power cable connector.

A) Yellow is 12 Volts
B) Red is 5 Volts
C) Black is a Ground wire
D) Orange is 3.3 Volts
E) The Green wire usually designates the Soft Power On wire.
(PS_ON....Power Supply_ON)

Look to see that the color code of your new power supply ATX main power cable wire, match that of the old Dell power supply.

Would appreciate hearing about your findings. You can post this in a Comment.


Posted on Feb 18, 2010

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