According to my sources the eMachines T6420, is supposed to use an MSI MS-7207
Also known as K8NGM2-L,http://www.newegg.com/product/product.aspx?Item=N82E16813130041
As you can see 4 ram memory slots.
You don't know what you're talking about...............
OH I'M JUST KIDDING!
[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)http://www.cpuid.com/softwares/cpu-z.html
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 -
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.
(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.