Sunday, August 5, 2012

Difference between DDR2 and DDR3 RAMs

In late 2008, Intel released the first Core i7 processors. These processors were paired with a new motherboard chipset called X58. This chipset introduced the need for a new type of memory called DDR3.
In the last two years the entire industry has converted over to DDR3. All of Intel’s new processors can only be used with a motherboard that requires DDR3. Recent AMD motherboards are also changing over to DDR3.

The term “DDR” stands for Double Data Rate RAM. This term came into use at the turn of the century when the first Double Data Rate RAM modules arrived. Double Data Rate RAM was capable of two data transfers per clock cycle, giving it twice the theoretical peak bandwidth of previous SDRAM while running at the same clock speed.

DDR2 and DDR3 are improvements on the same technology and further increase the number of data transfers per clock cycle. DDR2 RAM provides 4 data transfers per cycle, while DDR3 increases the number to 8. Assuming a base clock speed of 100Mhz, DDR RAM will provide 1600 MB/s of Bandwidth, DDR2 provides 3200 MB/s, and DDR3 provides 6400 MB/s. More is always better!

Here is a table to distinguish the performance.

Transfer Speed
400 – 800 Mbps
800 – 1600 Mbps
1.8V +/- 0.1V
1.5V +/- 0.075V
Internal Banks
8 bits
All DQ signals
Conventional T
CAS Latency
3 – 5
6 – 10
Thermal Sensor
Yes (optional)

Source : JDEC standard specification.

However, purchasing DDR2 or DDR3 RAM isn’t usually a matter of preference. DDR2 and DDR3 RAM are not compatible. If your motherboard uses DDR2, you cannot upgrade to DDR3 without upgrading your motherboard. This means that if you currently own a computer with DDR2 RAM and you want to upgrade to a brand new processor and motherboard you have to throw your your perfectly good DDR2 RAM and buy new DDR3 RAM.

Best movies for Entrepreneurship / Entrepreneurs

For Entrepreneurship, best ones are:

1. Pursuit of Happyness (Yes! Not Happiness, its Happyness)
2. The Social Network
3. The Aviator
4. Pirates of Silicon Valley
5. Good Will Hunting

To see a list of  best motivational Hollywood movies, visit this post.

To see the list of best movies based on ancient times/old times, please visit this post.

Best Movies for Motivation

Best Motivational Movies:

1. A Beautiful Mind
2. The Pursuit of Happyness
3. The Shawshank Redemption
4. Gladiator
5. Front of The Class
6. The Next Three Days
7. The King's Speech
8. Kung Fu Panda 1 and 2
9. Tears of the Sun
10. Act of Valor
11. Three Kings
12. Hachiko: A Dog's Story
13. How To Train Your Dragon

To see best movies for Entrepreneurship, please click here.

To see the list of best movies based on ancient times/old times, please visit this post.

Remove Sweetpacks Toolbar/SweetIM/1clickdownloader

Why remove Sweetpacks and what it does?

While I was in my Add/Remove Programs window to remove a program(who's Trial period had expired ;) ), I noticed some strange programs called SweetIM, Sweetpacks toolbar and their (too much sweet) updater!

That made me suspicious about these programs. Probably it is a spyware, or some adware kinda toolbar program that is too sick!

I simply uninstalled them from there. As I always use Google Chrome as my default browser, I opened Firefox and Internet Explorer to check if that sweet thing was causing any diabetes to these. As expected, even after uninstalling them from programs list, the programs were still running in both of these browsers. The Sweetpacks toolbar doesn't know how to get uninstalled simply i guess. Well, Sweetpacks toolbar is sick, so we have to manually remove it from wherever it gets located.

Also, the Sweetpacks or Sweetpack Browser Updater belongs to the same family, so I recommend removing it too to save your PC.

Steps to Remove Sweetpacks

If you're affected by this sick thing called SweetIM, or Sweetpacks toolbar or so called Sweetpack toolbar, just make sure you remove it from Firefox's Add-ons too!

Here's how to remove it:

1. In Firefox, press Ctrl+Shift+A and Add-On tab will open.
2. On left side of the page, select "Extensions" and it will list all extensions installed in Firefox.
3. Select Remove in front of "Sweetpacks toolbar for Firefox bla bla "
4. Uninstall all related garbage!

Post that might interest you: Hack any Windows OS (or XP) using Command Prompt

remove sweetpacks im facebook uninstall sweetpacksim

For Google Chrome, remove it from Extensions and from Search Engines. For that:
1. Go to wrench menu (Top-right settings)
2. Click Extensions and remove sweetpacks.

I recommend using Spybot- Search and Destroy to remove any left-over things of Sweetpacks, and also any other malware in your system. It is free, and a great tool for your system to remain secure.

And I think the program got itself installed when I may have been installing some other program in which it was bundled. Most probably, it might have also been promoted using facebook. That's why we should never click any suspicious link on internet.

Post you might find interesting:  Steve Jobs- Man of the Century

It might be interfering with your facebook interface and facebook chat, so just get rid of it by removing it from your browser. In case you still can not remove it, just let me know, I will be happy to help.