Power cable description

Wire a 12 volt AC adapter to it. Connect the power to the positive wire, & the ground to the negative wire. If it's a low power unit a 1 amp adapter will work. If it's a high powered unit you might need a 12 volt 5-10 amp adapter designed for monitors, TVs, monitors, & some laptops. Beware some laptop AC adapters can be 16-36 volts. Make sure you use a 12 volt one, & know which wire is positive, or you'll burn it out.

replace the cable that goes from your monitor to PC. Especially if you have a powered mini display adapter cable (if you have a video card that supports multiple monitors you will have a mini display powered adapter cable ) these power adapters burn out easily. 2 of mine were defective out of the box, I discovered defect by pure miracle.

there's a issue with your ram.
try and put one stick at a time and see if it works.

I agree that the overheat was the supply being too small. Not only the voltage rating is wrong, but I'd bet the amperage is alsotoo low for correct operation. Check this link. I have bought power bricks from them for laptops, monitors, and power tools - all good quality without breaking the bank. They ship pretty quickly as well. http://generalsaving.com/productfile/G_LCD12V3A/1000/G_LCD12V3A_z_0157.php

Perhaps the computer is Not turning on at all, and only seems like it is. Monitor's will go to 'Power Saving Mode' due to No Signal.
No video signal.

The computer isn't sending a video signal to the monitor, therefore the monitor goes into a power saving mode.

I suggest first checking the monitor cable, if it is a detachable unit. Use a Known to be Good monitor cable in it's place, or use the monitor, AND the monitor cable, on a computer that is known to be good.

Cable checks out?
Then I suggest cleaning out the inside of the computer, if the computer is dirty inside, and also the Power Supply.
Use a can of compressed air for computers.

[Attach the plastic straw provided with the can of air, to the can of air's nozzle.
When you go to clean out the inside of the Power Supply, you will have to use the plastic straw, through the ventilation holes in the Power Supply's case.

Hold on to the plastic straw with one hand, use the other hand to hold the can of air.
The plastic straw can shoot off of the can of air's nozzle, and wind up inside the case of the Power Supply, if you don't.
Real riot trying to fish out the straw ]

The above is a prerequisite before working on the computer.
Also heavily suggest you observe Anti-Static Precautions BEFORE you reach inside the computer.

[Anti-Static Precautions:
Your body carries Static electricity.
Static WILL fry out (Short Circuit) the delicate hardware components inside a computer.

Relieve your body of Static.

Computer off, UNPLUGGED from power, computer on a table, computer case open.
TOUCH the metal frame of the open computer case, to relieve your body of Static.

Should you get up, and walk away in the middle of working on your computer, upon your return be SURE to touch the metal frame again ]

Problem could be with the 'graphics engine' of your computer, but experience, and observation through the years makes me lean more towards a bad Power Supply.

['Graphics engine'. The GPU. Graphics Processing Unit.

Can be Integrated Graphics, or a dedicated graphics adapter card.

Integrated graphics is also known as OnBoard graphics.
On the motherBoard.
The GPU is soldered to the motherboard.

A dedicated graphics card, (Graphics adapter card), has it's own GPU.

http://en.wikipedia.org/wiki/GPU

Weak Voltage power rail.

[Voltage Power Rail:

The Power Supply in your eMachines computer, converts AC electricity from your home, or business, to DC electricity.
(An example of stored DC electricity, is a D cell battery used in a flashlight )

There are three main DC voltages produced,
A) 3.3 Volts (3 point 3)
B) 5 Volts
C) 12 Volts

(Two D cell batteries produce 3 Volts DC)

Each of the Voltages indicated above emit from one power rail, inside the Power Supply.
The 3.3 Volt has it's own power rail, same with the 5 Volt, and the 12 Volt.
(Your eMachines power supply, does not have multiple 12 Volt power rails. Unless it isn't the stock power supply that came with the computer ]

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

Weak Voltage power rail.

1) ALL the LED lights combined, use less than 1 Watt of power.

2) EACH fan uses 2 to 3 Watts

3) A typical Processor can use 51 to 125 Watts. (Less for older Processors. Such as Pentium III's for example)

With a power supply that has a weak voltage power rail, the lights will light, the fans may spin, (Or spin a few times then stop), but the Processor won't have enough power to turn on.


Lights, and fans can spin all day, the Harddrive may sound like the Platters are spinning inside, but if there is no Processor operating, there is No computer.

[Information on Harddrives, and the aforementioned Platters,

http://computer.howstuffworks.com/hard-disk.htm ]

Suggest you check the voltages produced by the Power Supply, or use a Known to be Good, Compatible power supply for a test unit.

[Compatible:
Right size, and shape of power supply case.
Correct amount of power cables, and the correct power cables,

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

For any questions regarding any of my statements above, please post in a Comment.

99% of monitors use a "standard" PC power-cable, exactly the same as is between your computer's power-supply and the wall outlet.

Go to any "Thrift Store", and don't pay more than $1 for a power-cable.

are you mention about the AC adapter or just power cords. For pwer cords is everywhere, but ac adapter you have to know the specification for the power input/output and size of plug since I can't tell the model on your description.

You can measure the adapter output with a voltmeter. The output should match the voltage marked on the adapter. This model uses a 12-volt adapter.

If the adapter doesn't have any output, it may be because the wire has broken inside the cable near the plug from flexing. It's possible to repair this by soldering on a new plug. Sometimes it's tough finding the right plug, though; some brands of equipment use oddball sizes.

You can also purchase replacement adapters. Several sources came up after a search for "scanport n9 adapter". Here's one on eBay. You'll be able to find what you need.

Not in the way you describe. You would need to get a Mini DVI to DVI cable according to your description, they are cheap and available at any electronics store.

Hi inkedpandora, http://icm.computercci.com/pgi-productspec?PSO080 This one should work for you it's the same voltage and amperage as your unit. 19VDC 3.16A Any standard power cable from an old printer or computer will work with one of those PS's. The only thing you need to check before you buy is the polarity of the barrel connector. I looked on the net but could not find out that info so look at the jack where the power plugs into the monitor. You might see a little diagram showing a + and - signs. If the line coming off the + sign goes to the semi-circle than the barrel is positive and if the - goes to the SC the barrel is negative. Ask them before you buy which way that one is. As long as they are the same you will be able to use that PS. Good Luck, Dude