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Monday, January 26, 2009

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SAY WELCOME TO DDR 3 TECHNOLOGY GENERATION  


DDR3 was initially developed in beginning of 2005 but was not applied on motherboard until middle of 2007 when DDR3 first began production in 90nm and when the Intel first introduced the P35 motherboard – the first motherboard to support DDR3. With the advancement in process and continued introduction of new PC models, DRAMeXchange analyst expects DDR3 to be part of 20-30% of all PC market.

Compared to DDR2, DDR3 can save roughly 30% of power and speed to 1600Mbps – nearly twice as fast as DDR2. Because of the high data rate, DDR3 can transmit 8-bit of data in 1 clock cycle while DDR2 can only transmit 4-bit in 1 clock cycle. DDR3 operates at 1.5V supply which is 17% lower than 1.8V supply required by DDR2. The low power supply will allow NB to extend its battery life. There are even talks of using an ultra low 1.35V supply in certain NB makers’ roadmaps in order to grab shares in the high end NB market and distance themselves from competitors in terms of technical specifications.

In terms of support for DDR3, Intel chipsets claims the best support for DDR3 with the most number of chipsets and with the most complete support ranging from low to mid/high end. The only difference in terms DDR3 support is the speed especially with Intel's high end X Series chipset which supports Intel XMP (eXtended Memory Profile) over-clocking system to optimize DDR3 memory performance. Although its core strength is in the graphic chip market, nVidia has also begun to introduce DDR3 support in its nForce Series chipsets with a memory over-clocking system – EPP2 (Enhanced Performance Profile) - which optimizes DDR3 memory performance by fine tuning the DDR3 memory configurations in similar fashion as Intel’s XMP system. However, because its memory controller is built into the CPU due to its CPU architecture, AMD will not be able to support DDR3 until the next generation AM3 is launched.

From the product roadmaps, currently, the only DDR3 manufacturers continue to be the primary DRAM makers such as Samsung, Hynix, and Elpida. Of the Taiwanese DRAM makers, only Nanya has begun manufacturing DDR3 dies. From the production scales, Samsung and Elpida are the most aggressive in ramping up DDR3 production. DRAMeXchange estimates Samsung and Elpida will have nearly 10% of their production capacity focused on DDR3 production. In addition, with advancement in process, DDR3 dies will begin to be produced with 70nm, 65nms or even 56nm process beginning the second half of this year and will officially begin mass production in these advance process sometimes in 2009. Given the increased willingness to adopt DDR3 among the PC OEM makers, it is possible for DDR3 to reach a large enough economy of scale and to begin a generation shift from DDR2 to DDR3 (Figure-3)

According to DRAMeXchange figures, DDR3 dies will make up roughly 5% of total DRAM die produced by the end of this year. Although the proportion is small, DRAM makers have been very persuasive in convincing PC OEM makers to adopt DDR3. Besides promising a steady supply of DDR3 dies, DRAM makers have offered extremely attractive prices to lower the price barrier between DDR2 and DDR3 memory modules for those PC makers who are willing to adopt DDR3. Thus, in NB market, we have begun to see new product launches featuring DDR3 from branded PC makers such as Dell, Sony, Lenovo, Toshiba, Acer, etc. We expect more PC OEM makers to launch products containing DDR3 by end of this year.

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TRICKS TO SPEED UP WINDOWS XP  

BEFORE
AFTER TUNE UP

Step 1: Clear The Start-up folder.

The startup folder is the folder that will launch any programs or shortcuts when the computer starts up. The fewer programs that you have starting up when you power on the computer the faster the computer will boot. Keep in mind that some programs need to run when windows starts up so it may be best to backup this folder before you start.

The folder can be found by going to: C:\Documents and Settings\username\Start Menu\Programs\Startup, where username is your Windows logon name. You can also clear out the start-up items by going to Start > Programs > Startup, then right-clicking items you want to remove.

Step 2: Clearing out the startup in the system configuration utility

The System Configuration Utility also known as MSConfig is a helpful tool that will help you troubleshoot your Windows system. This tool lets you modify a lot of your system preferences but it also allows you to disable programs that startup in the background of Windows. Note: Be careful with this tool as you can make Windows run improperly.

How to start msconfig
Click on the Start button.
Select Run from the menu.
In the run dialog box type “msconfig�.
Click OK.

Once in the msconfig utility select the startup tab. In the startup tab you will see several programs listed with a checkbox beside it. If there is a check mark beside the application listed, the application will startup when your computer starts up. To speed up your computer you want to remove as many check marks from this box without affecting the programs that you use. Once you have removed the checkmarks you wish to remove, click on OK and restart the computer when prompted. It is recommended to uncheck a couple at a time so you will know what is causing a problem if one occurs.

To get more information about a listing, expand the width of the Command column near the top of the Startup tab. Expand it enough and you’ll see the start-up command that the program issues, including its location, such as C:Program FilesAdobeAcrobat 5.0ReaderAcroRd32.exe. The directory location should be a hint to help you know the name of the program. In this case it is Adobe Acrobat.

Step 3: Speeding up your startup by sorting your drivers.

Once upon a time Microsoft used to offer a tool called bootvis to optimize the sequence that your computers drivers load when starting Windows. Although the file is not available through Microsoft, there is a link to the program found in the tools section of this book. There has been some controversy wether the tool actually does anything. Lots of magazines and users say yes. Microsoft says no. For this one you’ll have to be the judge.

How to use bootvis:

Download and install Bootvis. Do a search in Google for bootvis.exe, you will find it. Open Bootvis. (Location may vary depending where you installed it) You need to analyze your computer by going to File and clicking on New. In the New menu select Next Boot and Drivers Trace. Next a box will come up asking how many trace repetitions are needed. Just leave it at the default and click on OK. Another box will appear, select the Reboot Now button and wait for your computer to restart. Once your computer has restarted wait for a little bit and bootvis will start automatically. Go to the Trace menu and select Optimize System.(This may take a few minutes.) Once complete, you will be prompted to restart your system one more time. This reboot should be faster than the last.

Step 4: Stop as many services as possible.

The more that is running on your computer the more your computer has to open on startup. Keeping a slimmer running computer will not only make your computer run faster but it will make Windows startup faster. Here is how it’s done:

Go to the Start menu and then select Run. Type ‘services.msc’ in the Run Dialog Box and click on OK. In the services window double click on the service you wish to disable. In the properties box for the selected service choose disabled in the Startup Type dropdown box. Click on OK.

Its best to restart your computer after disabling a couple of services at a time so if something undesired happens to your computer you know what disabled service needs to be re-enabled.

Step 5: Remove unwanted fonts to increase boot speed

Windows checks and loads fonts during the startup process, therefore having a large amount of font files can cause performance to drag during startup. The simple solution for this (if you do not expect to use the certain fonts) is to move the unnecessary fonts to a new directory elsewhere on the hard disk, preserving them in case they are needed, but preventing them from loading upon startup.

This is how you do it:

In your C drive create a folder called Fonts Backup. You can do this by going to the C drive through My Computer. Go to the File menu and go to New. In the new menu select Folder. A new folder will pop-up and allow you to name it.

Once the folder is created go into it and leave it open. Go to the Start menu and select Run. In the Run command type Fonts. The Fonts folder will load and display the Font files. All you have to do is drag and drop the fonts you think you wont need to the Font Backup folder. Be sure to move the .bold and the.bold.italic files that correspond with the font you want to move.

Step 6: Disable auto detection for empty IDE slots

For a faster boot up is to disable the auto detection that Windows XP uses to determine if there are IDE devices present in any of the IDE slots on the motherboard. More specifically, disable this feature on any empty slots to prevent the operating system wasting time and resources checking them.

This is how you disable IDE Detection:

Right-click on My Computer and Select Properties. In the properties click on the Hardware tab and click on the Device Manager button. In the Device Manager expand the IDE ATA/ATAPI controllers. Double-click on one of the Secondary IDE Channels and click on the Advanced Settings tab. In the dropdown box beside Device Type select None and click on OK. Repeat steps 4 and 5 to all of the Secondary IDE channels under the IDE ATA/ATAPI controllers.

Step 7: Reduce wait time after XP boots

A common problem when Windows XP boots is you will see the desktop and all of your icons but nothing responds when you click on it. During this time Windows application and networking processes are loading in the background. To reduce this wait time you need to cut down the amount of processes loading. The best way to do this is through Windows networking. Most computers do not share files or printers to other users on a network yet Windows turns File and Printer sharing on by default. Warning: If you are sharing any files or printers this step is not for you.

Here is how you disable file and print sharing.

Go to the Start menu and select Run. In the Run command enter control netconnections. In your Network Connections right-click on a Local area connection and select properties. In the properties remove the checkmark beside File and print sharing. Click OK

Repeat steps 3 through 5 if you have more than one network connection.

Step 8: Disable parts of the Group Policy Manager. (XP Pro only)

This will dramatically speed up the login process - If you don’t need to utilize Group Policies on the local machine, you can disable parts of it.

Go to Start and select Run. Type in gpedit.msc and click on OK. Right click on the Local Computer Policy entry and select Properties from the menu that appears. Add checkmarks to the two options within the Disable section. Close out. Reboot.

Step 9: Enable boot defrag.

A great new feature in Microsoft Windows XP is the ability to do a boot Defragment. This places all boot files next to each other on the disk to allow for faster booting. By default this option is enabled but on some builds it is not so below is how to turn it on.(Y is good)

Go to Start then Run. Enter regedit and click on OK Click on the + sign beside HKEY_LOCAL_MACHINE then software then Microsoft then dfrg then bootoptimizefunction Select Enable from the list on the right. Right on it and select Modify. Change the value to Y to enable and N to disable. Reboot your computer

Step 10: Delete the prefetch files from time to time.

The prefetch files are the files that make Windows XP load applications load faster. Deleting the files will speedup your boot time. The trade-off is that Windows will take longer to load applications. The time difference for loading applications may not be that affected. Its best to experiment with this one.

How to enable the deletion of prefetch files.

Go into My Computer and go into your hard drive. Right-click anywhere that a file is not and select the ‘New’ submenu and click ‘Text Document’ Name it “deleteprefetch” Double-click on the text file you just created. Type “del C:WindowsPrefetch*.* /Q” (without the quotes). Go to the File menu and click on Save As… and choose “All Files” from the “Save as Type” box and save it as “deleteprefetch.bat”

You just created a batch file that will automatically delete all the files in your Prefetch folder. Just double-click on the file to make it run. I do this once a month to clean up the files

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COMPUTER GOT BLUE SCREEN OF DEATH ( BSOD )  


If your pc fails to boot, or displays a BSOD (Blue Screen Of Death), occasionally this is caused by a faulty stick of ram.

Follow this tutorial to fix the memory bank in a simple ways.

1 - ensure the environment is static safe by removing any unwanted plastic, bags from your workbench. Keep the computer system plugged into your AC unit but ensure that the power switch on the PC is turned off.

For PC using ATX power supply, remember to turn off the power switch located at the back of the casing , when you shut down computer from Windows.

Keeping the PC plugged in the AC will ensure that case is grounded thus reducing the possibility of damaging the module or system from ESD (Electro Static Discharge)

2 -After removing the casing cover, ground yourself by touching any of the metal surfaces on your computer casing. Doing this step discharges any static built up on your body and clothing

3 - Visually locate the computer memory expansion slots. This is normally visible but if in doubt, refer to your operation manual instruction book.

4 – the first thing to do is to remove the memory module and perform some visual inspection to check the memory socket which sits the memory module. Make sure all the pins are straight, no cracks or broken pins must be found, finally make sure all contact and connector joints are dust free.

Tips on Cleaning

A- Wet the end of a cotton swab with the solvent, the swab should be wet but not dripping
B- Using a circular motion, clean the contacts(tabs) on the memory module.
C- Allow the contact surface to dry thoroughly.(5 to 10 minutes)
D- Replace the memory module back into the socket, careful not to use too much pressure.
E- Repeat steps B through D for each module you have.
F- Power on the computer to test the RAM.
G- If you don’t see any memory errors, replace the PC's case and power-up.

Additional Tips:

5. While contact cleaner is preferred, it is also a well-known trick that you can also clean contacts with a pencil eraser.

Troubleshooting memory using BIOS Beep Codes

The BIOS on the motherboard will always perform a power-on-self-test (POST) during power up, usually this test is perform to ensure proper system function and if a failure occurs during the POST, it will identify the failure and emits a beeping sound to prompt the service technician to take corrective action ASAP.

The exact meaning of the beeping codes varies from different BIOS developers, there are 3 basic BIOS developer today, the most popular BIOS is made by "American Megatrend¨ - AMI, Award and Phoenix BIOS. The beep codes for this AMI & Award BIOS developer are provided in this memory troubleshooter guide, we do not provide beep code reference for Phoenix BIOS and custom BIOS written by other companies other than the two mention.

Beep codes are not entirely consistent sometimes to detect the exact failures, but generally it is still the most dependent methods to diagnose a fault without opening up the PC system or using any diagnostic software.

Troubleshooting Memory Failures using Award BIOS Beep Codes


1 Long Beep tone - Memory Problem
1 Long Beep and 2 Short Beeps - DRAM Parity failure
1 Long Beep and 3 Short Beeps - Video error
Continous Beep tone - Memory or Video memory failures

Troubleshooting Memory Failures using AMI BIOS Beep Codes

1 Beep tone - DRAM refresh failure
2 Beep tone - DRAM Parity failure
3 Beep tone - Base 64K RAM failure
4 Beep tone - System timer error
5 Beep tone - CPU failure
6 Beep tone - Keyboard controller error
7 Beep tone - Virtual mode error
8 Beep tone - Display memory read/write error
9 Beep tone - ROM BIOS checksum error
10 Beep tone - CMOS register read/write error
11 Beep tone - Cache memory error
Continous Beep tone - Memory or Video memory failures


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