[The above is for Reference, NOT advertising ]
The Asus Essential CG5270 Desktop PC uses the Asus P5QL-VM mobo.
Click on the Download tab.
(Overview / Specifications / Download / etc)
Click on the blue Down Arrow, on the right side of the - Select OS box.
Click on ANY Operating System. You are just after the Manual.
At the bottom of the list click on the + sign, to the left of the blue -
Scroll the INSIDE blue scroll bar down, until you see -
Version E4576 - P5QL-VM EPU user's manual (English)
Click on the blue - Global
A small window will come up -
Make SURE there is a Green dot, in the small circle to the left of -
If not; left-click once in the small empty circle, to the left of -
Now go below in the small window, and click on - OK.
A small download window will come up. Allow the file to download all the way, then DOUBLE-click right on the file name.
Another small window will come up.
Go to the far left, and click on - Extract all files
At the bottom of the next 3 small windows, click on -
Next, Next, and Finish.
In the last small window DOUBLE-click right on the file name.
(E4576_P5QL-VM EPU, next to the red Adobe PDF icon)
There is your motherboard manual in PDF file form.
Motherboard Layout is on Page 1-6
Internal Connectors on Page 1-24
Specs on Page 1-13 for Ram Memory, and Page 1-1 for the motherboard.
Core2 Duo, Core2 Quad, and Core2 Extreme processors;
either an 800MegaHertz Front Side Bus, 1066MHz FSB, or 1333MHz FSB.
ALL use the Socket T processor socket. (LGA 775 = Same/same)
ALL based on -> Up To the 45nm architecture.
(Means will support Intel Core2 processors that are based on the 65nm architecture, OR 45nm architecture)http://en.wikipedia.org/wiki/List_of_intel_core_2_microprocessors
The motherboard chipset is an Intel G43 -> Northbridge chip; and an Intel ICH7 -> Southbridge chip.
(Part number on Southbridge chip is Intel 82801GB)
THIS, is according to the following website,http://www.meetgadget.com/gadget/2815/ASUS+Essentio+CG5270
I don't think so.
The Intel G43 - Northbridge chip, is usually matched up with the Intel ICH10, or ICH10R - Southbridge chip,http://en.wikipedia.org/wiki/List_of_intel_chipsets#Core_2_chipsets
Scroll down to G43 in the left column.
(Past G35 and P45)
[Part number of ICH10 and ICH10R, is Intel 82801JB, and Intel 82801JR; respectively,http://en.wikipedia.org/wiki/List_of_intel_chipsets#Southbridge_9xx_and_3.2F4_Series_chipsets
However, suggest you use the free tiny program CPU-Z, from CPUID.com, and find out what motherboard chipset is used,http://www.cpuid.com/softwares/cpu-z.html
[ When CPU-Z is opened it automatically opens to the CPU tab.
Clicking on the Mainboard tab gives you information on the Motherboard.
If you need help in downloading, installing, or using CPU-Z, post back in a Comment ]
B) Ram Memory:
240 gold plated contact pins. 120 on each side.
One Locating Notch.
Reputed to use 800MegaHertz up to 1333MHz.
(800MHz, 1066Mhz, and 1333Mhz)
However it MATTERS on what Processor you are using.
Ram Memory typically operates at half of the Frequency Rate ('Speed'), of the Processor's Front Side Bus. (FSB)
Since the Intel G43 came out in 2008, it stands to reason that the PCI Express technology is PCI Express 2.0http://en.wikipedia.org/wiki/PCI_Express#PCI_Express_2.0
For additional questions please post in a Comment.