20 Most Recent eMachines T6420 PC Desktop Questions & Answers

are you looking for the main power supply switch or to shut the computer down because the main switch is on the back of the computer towards the top of the case next to the power cord

eMachines T6420 ... | Answered on Jan 25, 2014

According to my sources the eMachines T6420, is supposed to use an MSI MS-7207
Also known as K8NGM2-L,


As you can see 4 ram memory slots.
You don't know what you're talking about...............


[Whoa! Settle down there big John. No need for violence! Lol!
'sides I would just sit here and whine! ]

There have been several times, eMachines 'fought to keep their head above water'. During some of those times, they bought from one motherboard manufacturer, after another;
Asus, ECS, FIC, Intel, MSI, and TriGem.

Then Gateway bought them out, and Acer bought out Gateway.

You may have a 'last moment' motherboard.
Point 2, is the original motherboard may have gone bad, and been replaced.

What to do?
I suggest using the free CPU-Z from CPUID.com
This tiny program will tell you info about;

A) Processor (CPU tab and Cache tab)
B) Motherboard (Mainboard tab)
C) Ram Memory (Memory tab and SPD tab)
D) Graphics (Graphics tab)


The Mainboard information will tell you the;
1) Manufacturer of the motherboard
2) Model number of the motherboard
3) Motherboard chipset
4) BIOS; Manufacturer, version, and date

Armed with this information, you, or I, can find out all of the specifications of the motherboard. May be also able to find a motherboard manual.

On the right side of the CPU-Z page, go to the
- Download latest release - subheading, and click on the purple -
1.61 setup, english

On the next page click on - Download Now! - in the purple rectangle.
A small window will come up on the right -
Opening cpu-z_1.61-setup-en.exe
Click on Save File.

A small window will come up on the left. In the wording at the top, tells you where the file will download to.

Windows XP;
(For Vista and Win7 it is slightly different. Post if you need these instructions),

It may have Desktop, or My Documents, or Downloads, in the wording.
Desktop: The file will be on your desktop screen.
My Documents: Click on Start, then on My Documents.

Downloads: Click on Start, then on My Documents.
DOUBLE-click on Downloads.

When you see the file name (cpu-z_1.61-setup-en), DOUBLE-click on it.
There may be a Microsoft 'squawk box' come up,
"Do you want to run this file?"
Click on Run.

[ In order to get a digital certificate, you have to pay for the main software program, and EACH time someone downloads it.
It is FREE. I would not want to pay, in order to give away free software, would you? ]

Welcome to the CPUID CPU-Z Setup Wizard, will appear.
Click on Next.
Click on the empty circle to the left of -
I accept the agreement. (Or after you have read it)

Now click on Next.
Click on Next again.
One more time............STOP.

The next window will put ASK as your browser home page, and add the ASK toolbar.
Click on the square with a green checkmark in it, to the left of -

Install the Ask Toolbar and make Ask my default search provider

Removes the green checkmark from BOTH boxes, and DOES NOT install Ask -> anything!

NOW,....click on Next.
One more time, Next,.....
Now click on - Install

If you click on Finish, now, you will get the CPU-Z readme file.
You can choose to read it, then click on it's red X,
Click on the green checkmark, and remove it.
No CPU-Z readme file will come up.
Choice is yours.

The CPU-Z icon will now be on your desktop screen.
Double-click on it.

When CPU-Z loads, it automatically has the CPU tab open.
CPU = Central Processing Unit. Another term used is Microprocessor, or simply Processor for short.

Click on the Mainboard tab. Post back in a Comment.

eMachines T6420 ... | Answered on Jul 21, 2012

You might have some viruses and malware....

Start your PC and press F8 several times until the boot menu comes up. Then select "Safe Mode with Networking". Now get some or ALL of the FREE programs below.

Download, Install and Run Malwarebytes Anti-Malware:
When Installing choose the non-pro version.

Download, Unzip, Install and Run TDSSKiller:

Download, Install and Run Super Anti-Spyware:

If you have an outdated Anti-virus program then Download, Install and Run Avira Anti-Virus:
Make sure to select ALL of the "threat categories" when you install or configure Avira...

You should be in pretty good shape if you run and install all of these programs.

eMachines T6420 ... | Answered on Jul 01, 2012

When the Windows operating system is installed on a computer, it assigns hash values to major hardware components inside the computer.

Some of the major hardware components such as,

1) Processor

2) Harddrive

3) Motherboard.
More specifically the motherboard chipset, and BIOS program, plus the version of the BIOS program.

4) GPU. (Either the GPU used for Integrated Graphics, or installed on a graphics card)

[Northbridge/Southbridge chipset, is the motherboard chipset.

Chip and Chipset are slang terms for I.C.
Integrated Circuit.


This is a motherboard diagram, showing the relation of the Northbridge, and Southbridge chipset,


{CPU stands for Central Processing Unit. Another name is Microprocessor, or simply Processor for short}

The Northbridge chipset handles the high speed capabilities of the computer.

Such as the Processor, Ram Memory, and High speed graphics.
AGP and PCI Express.

A graphics card inserted into a PCI expansion slot, is not high speed graphics.
Integrated Graphics is not high speed graphics.

The Southbridge chipset handles the slower capabilities of the computer.
Anything inserted into a PCI expansion slot.
IDE, or SATA harddrives.
Ethernet, and so on.

My sources state the eMachines T6420, uses an MSI ms-7207 motherboard. (K8NGM2-L)

(Haven't had one come to my shop to verify this)


This MSI motherboard uses an Nvidia GeForce 6100, Northbridge chip, and an Nvidia nForce 410, Southbridge chip.

Graphics Processing Unit,


Apologizes for the long dissertation, but wanted to explain the motherboard chipset, and GPU, in case you were not aware ]

Change any two of these components, and Windows wants to be activated again.

Changing the motherboard alone, could also do it.

This implementation was brought about by Microsoft, to deter thievery of their software, (Operating System)

If there is an Activation message listed, I suggest clicking on it.
There will be three options given.

I suggest clicking on Call Microsoft.
(Toll free number)

I myself like to speak to a person, rather than activate over the internet, possibly run into trouble, and not have a human being to help sort it out.

[NOTE from me.
If you get a computer voice, after it has asked a question, make a sound like a buzzing noise.
After you do this three times, you will be referred to a human being]

After you click on Call Microsoft, there will be a series of boxes on your screen. each box has a series of letter/numbers in it.

When you call the nice person to activate, you will be asked what you wish to do.

You will be asked for those letter/numbers, one box at a time.

Suggest you speak clearly, and make SURE they repeat them back to you, as you give them, one box at a time.

When you have finished, they will state "Hold On".
(Or something to this effect)

The person will give you back a series of letter/numbers, which you will type in the blank boxes on your screen.
One box at a time.

ENSURE that you understand very clearly. If you wish, they will repeat.

Once you have filled all 6 boxes, there will be silence.
You are expected to know that you have to go to the bottom of the screen, and click on Activate.

Once you have done this, you are finished.
Your genuine copy of Windows is now activated again.

You have a new Product Key, and the one that came with the computer is no longer viable.

eMachines T6420 ... | Answered on Jun 24, 2010

look for mother board morking,look for the pin that indecates (PS) is for the power switch (PL) power lead,(PR)(P res).and HD led

eMachines T6420 ... | Answered on Dec 05, 2009

check plug for bent pins.....

eMachines T6420 ... | Answered on Dec 05, 2009

You need to replace the fan, it will cause further damage if you don't.

I’m happy to assist further over the phone at https://www.6ya.com/expert/joe_8b8c2cd6ce148309

eMachines T6420 ... | Answered on Sep 24, 2009

Change the order so that the CD boots first. Try to run Repair from the Windows CD. If unsuccessful, you'll need to reinstall Windows.

eMachines T6420 ... | Answered on Jul 02, 2009

the pins and spins are the same colour. you can plug it in easly.

eMachines T6420 ... | Answered on May 29, 2009

Lilyoungun8, you need to be a little more specific; Check these:

1. Is the power from the mains turned on?
2. Turn it off from the wall socket and push the power cable back in, it may be loose. Then try turning it on again.
3. Hopefully it is none of the below, but if none of the aboe 2 things work, it may be one of these in increasing order of importance:
3.a. Your power cable is faulty - you will need to replace it
3.b. Your PC power supply is shot - you will need to replace it
3.c. Your motherboard has died - you will either need to replace it or buy a new PC altogether.

Do let us know...

- Quirino

eMachines T6420 ... | Answered on May 22, 2009

Hi there
The front panel connectors are mainly,
  • harddisk activity connector
  • power switch connector
  • reset switch connector
  • power LED connector
  • speakers connector
  • USB connector
Harddisk activity connector
This normally comes red in colour and is labeled as HDD-LED
Power switch connector
This comes green in colour and is labeled as POWER-SW
Reset switch connector
This usually comes grey in colour and is labeled as RST-SW
Power LED connector
This is usually green in colour and is labled as PWR-LED
Speakers connector
This speaker will give different beep sounds during boot to tell the user if there is any errors. It occupies 4 pins, however only 2 is important for the function. Be sure to connect the red coloured cable to the positive polarity and the black to the negative.
front_panel_connectors.jpg Front panel connectors pins on the motherboard
front_panel.jpg Front panel connectors from the casing

Good luck and thanks for using FixYa!!

eMachines T6420 ... | Answered on May 13, 2009

This problem comes due to problem with RAM and CMOS.

first you get RAM outside the CPU and clean properly by brush,and put into the RAM SLOT.

it work.
otherwise ,you have to change RAM.

eMachines T6420 ... | Answered on Apr 08, 2009

if you have the disc that come with your computer get the drivers from there.

eMachines T... | Answered on Nov 18, 2016

Guessing, but it sounds like your hard drive has been damaged. You may need a new drive, or at least repairs. If you have a "rescue disk", give that a try.

eMachines T... | Answered on Sep 05, 2015

Here's a video on how I fixed my emachines boot problem. Almost anything can get in the way of your computer booting. Software, hard drive, RAM, motherboard, processor, etc. Below the video, I attached a link to a tip I made about computer crashes. Computer Crashes and Electrolytic Capacitors

eMachines T... | Answered on Jul 01, 2015

Please specify how exactly you're trying to make them work, what machine you're trying to make them work with, and what kind of connection your speakers are using.

General info:

Speakers usually get connected via 3,5 mm plug into the green round socket in the back or front of your computer. In Windows, if your speakers are properly connected and set up, right click on the sound pictogram in your taskbar and choose "Playback devices". Set your speakers to be the default playback device by left-clicking on the preferred device of your choise and clicking the button "Set default" below.

eMachines T... | Answered on Aug 04, 2014

In general, you have to order recovery disks from the manufacturer of the machine.
In your case eMachines Store eRecovery is where you can order it, or you can initiate a discussion with tech support.
Also, many machines give you the option to burn your own recovery media when you first set it up. Most people skip this step. You should do this before you have problems. Search your machine for the word Recovery and see if you have an installer routine there.
Here are instructions to create a recovery disk on a USB stick
Create USB recovery drive Windows Help

eMachines T... | Answered on Jul 30, 2014

Check your monitor cable connections. If not solved, try a different monitor.

eMachines T... | Answered on May 08, 2014

Flashing the bios is a last-ditch move. What happened before that?
Did it work before you flashed it? If the unit is interrupted during clash, or if it is the wrong bios, your goose could be cooked.
Read this:
There may be something you can use, especially if you have a floppy drive (a real one, not a usb-one).
You maybe can use flash drive in the usb port, but that's a long shot.
Good luck with that. I'd be looking at a new motherboard. They can be had pretty cheaply.

eMachines T... | Answered on Dec 17, 2013

I understand that you want to reinstall the Operating System on the computer. Select models have the ability to have the operating system reinstalled from a hidden drive built into the computer. To start the system recovery:
  1. Restart the computer
  2. When the eMachines logo appears on the screen, press the Alt and F10 keys repeatedly.
  3. When prompted with a boot screen, hit the Enter key.
  4. After the system recovery program has loaded, follow the prompts to reinstall the operating system.
If the ability to reinstall from the previous method is not available or fails during the recovery, recovery of the operating system will need to be from Recovery Media.
  1. Insert the disk labeled System CD into the computer's disk drive and restart the computer.
  2. When the eMachines logo appears on the screen, press the F12 key repeatedly.
  3. Select either CDROM or DVD as the boot device, this may vary depending on the system.
  4. When prompted for the Recovery CD, remove the System CD and insert the Recovery CD.
  5. Note: If there are multiple Recovery CDs, please insert the first Recovery CD.
  6. After the system recovery program has loaded follow the prompts to reinstall the operating system.

Refer the URL for more information and for the link to order the Recovery media if required.

eMachines T... | Answered on Nov 19, 2013

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