Archive for the ‘Hardware’ Category

How to Change A Cmos Battery

Sunday, August 24th, 2008

First the safety rules

The inside of a computer is a bad place full of electricity and sharp edges.
On the electricity side always when working on you computer make sure that it’s still plugged in to the power socket and the power is turned off, this is to ensure that any static
From you is discharged through the earth. The inside of most computer cases are unfinished metal and has very sharp edges so be careful.
The first signs of a battery failing are:-

1) your clock starts running slowly
2) when you boot (start) your computer it has a problem finding your hardware (no hard drive, no cd rom)

To change the battery you need the following tools

1) a X-point screwdriver
2) an anti-static strap(optional)
3) a new battery (seems logical)

Then unplug all the cables from the back of the computer as you remove them make a note where they came from. (So when you finished you can put them back)

Move the computer somewhere where you can work on it with ease

Remove the cover by locating the screws around the outer edge (back) of the computer
Some computer cases only require you to remove 2 screws on one side then a panel can be removed allowing you access to the computers insides, others you must remove 6 screws and remove the whole case by sliding it to the rear and lifting it off.

Now make sure that you read the safety instructions about static.
Look inside you will see a round silver thing that looks about the size of a 10p piece (quarter). This is the battery itself, carefully lift the retaining clip and slide the battery out. That’s it removed now go to your local computer retailer, electrical retailer (Tandy/Radio shack) taking the old battery with you and get a new battery.

Back to your computer insert the new battery by lifting the clip and sliding the battery in.

Reinstall your case and plug all the cables back (you did remember to label them didn’t you)

Now for the fun part.

You will now need to go into you bios….

Right the bios is the god of your computer.

To access it, when your computer first starts you will see a black screen with white text.

If you look carefully you will see a line that says something like “press del for setup” or some other key (F2 or ESC or tab) this will take you to god’s house where you can make lots of changes to the way your machine works.

It is also the place where you can make your nice computer in to a rather expensive door stop so be careful and don’t go playing with anything.

You will now be presented with a blue screen with a lot of options on it,
The one we want is load optimised/default settings.

Press the F10 key and type y the computer should now reboot.

If every thing went well then your computer will now be up and running.

Shizers way: Keep computer running. Lay it on it’s side and remove side cover to expose MoBo. Take any thin object, “small screwdriver, knife point, wood shiskabob skewer. Pull back the battery retaining clip. Toss the old battery in the junk recepticle, unless you belong to greenpeace and want to save the earth. Install the new battery. No need to reset bios becasue the compter supplies voltage to the cmos while it is running. Reset or resync clock with internet. Done!

New PC or New Motherboard?

Sunday, August 24th, 2008

If you don’t want to spend big bucks on a new PC, consider upgrading your old system’s motherboard and CPU. This can boost the machine’s performance and give you access to the latest technologies. It can also save you hundreds of dollars.

What you won’t get is a new hard drive, optical drive, or operating system, though the new motherboard gives you the option of upgrading these components later. When you do it yourself, you choose the make, model, and cost that serve you best, rather than settling for what’s preloaded in an off-the-shelf machine.

For as little as $200 to $350, you can purchase a motherboard with a new Pentium 4 or Athlon processor and 512MB of RAM. (Visit this link to check the latest motherboard prices.) That’s hundreds of dollars less than the retail cost of a midrange PC that supports AGP 8X graphics cards, Serial ATA drives, and the other advanced features that your new motherboard is likely to offer.

Motherboard Buyers Guide

Size matters: Most desktop PCs sold in the last few years conform to the ATX form factor (as do most motherboards), but not all do. Many small or ultrabudget systems are based on other designs, and some PCs from HP/Compaq, IBM, and other big-name vendors aren’t ATX-compatible. Refer to your computer’s documentation to see if the new motherboard will fit inside its case.

Find the right CPU: The optimal combination of CPU price and performance may lead you to early versions of Athlon XP and Pentium 4 processors: Retail boxed versions of 1- to 2-GHz AMD Athlon XP processors cost less than $100, while Pentium 4 processors running at comparable speeds are less than $130. OEM versions of both (that’s minus the fancy box, the cooling fan, and sometimes a warranty) may be priced considerably lower. Avoid older Pentium 4 processors with 256KB of L2 cache. CPUs with 512KB cache are faster and well worth the small added expense.

Be picky: Steer clear of no-name vendors and buy from established manufacturers only.

Pay for power: Your old PC’s power supply may not have enough wattage or may lack the 12-volt amperage needed to run some Pentium 4 and Athlon motherboards. Check the new motherboard’s requirements against the specs on your power supply. If in doubt, buy a power supply that generates 300 watts or more,

Faster is better: A motherboard’s frontside bus speed is the rate at which data moves between the CPU and RAM. FSB speed can have a greater effect on overall system performance than listed CPU speed, which is a multiple of the FSB speed. The faster the FSB, the better.

Get it all: Your new motherboard needs PCI slots and USB ports, two UltraATA/100 connectors, parallel and serial ports (if you use these), and at least two DIMM slots for RAM (DDR RAM is best). For a little extra money, you can get Serial ATA, ethernet, RAID, FireWire, Wi-Fi, and other advanced features.

Sight and sound off: Some low-cost motherboards have sound and graphics functions built in. The quality of these integrated functions is often marginal. Make sure that any built-in sound and graphics can be disabled, and that separate audio and graphics boards can be added.

Minimize Your Mousing

For people in a hurry, every unnecessary mouse movement is an aggravation. Windows 2000, Me, and XP let you set the pointer to automatically move to commonly used buttons in dialog boxes. Click Start, Settings, Control Panel (or Start, Control Panel in XP), and click or double-click Mouse (choose “Printers and Other Hardware” first if you’re in XP’s Categories view, or “View all Control Panel options” if you’re in Me’s “commonly used” view). Now select Pointer Options, check the box labeled “Automatically move pointer to the default button in a dialog box” (the option’s wording varies slightly in Windows 2000), and click OK.