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AGP Aperture Size

Common Options : 4, 8, 16, 32, 64, 128, 256

Quick Review

This BIOS feature does two things. It selects the size of the AGP aperture and it determines the size of the GART (Graphics Address Relocation Table).

The aperture is a portion of the PCI memory address range that is dedicated for use as AGP memory address space while the GART is a translation table that translates AGP memory addresses into actual memory addresses which are often fragmented. The GART allows the graphics card to see the memory region available to it as a contiguous piece of memory range.

Host cycles that hit the aperture range are forwarded to the AGP bus without need for translation. The aperture size also determines the maximum amount of system memory that can be allocated to the AGP graphics card for texture storage.

Please note that the AGP aperture is merely address space, not actual physical memory in use. Although it is very common to hear people recommending that the AGP aperture size should be half the size of system memory, that is wrong!

The requirement for AGP memory space shrinks as the graphics card's local memory increases in size. This is because the graphics card will have more local memory to dedicate to texture storage. So, if you upgrade to a graphics card with more memory, you shouldn't be "deceived" into thinking that you will need even more AGP memory! On the contrary, a smaller AGP memory space will be required.

It is recommended that you keep the AGP aperture around 64MB to 128MB in size, even if your graphics card has a lot of onboard memory. This allows flexibility in the event that you actually need extra memory for texture storage. It will also keep the GART (Graphics Address Relocation Table) within a reasonable size.


Do you find that it takes longer and longer for applications to open when you boot Windows XP? One common cause is the Win XP prefetch system.

"What's Prefetch?" you ask. It's a way for Windows to pre-load the data needed for running applications before you launch them. It's supposed to make them launch quicker. What actually happens is that programs you hardly ever use take up space and the wrong data gets prefetched.

Good news—these PF instructions can safely be deleted making your boot time faster.

Go to Start / Run and type in "Prefetch" (or go to C:\WINDOWS\PREFETCH). You'll probably see a big long list.

 

Go ahead and Ctrl+A to select all then hit the Delete key.

The next time you boot, XP will rebuild the list according to the applications you actually use. When I did this it reduced my prefetch folder from 127 files down to 62.

More speed and more space. Yeah!

Analog Modem Tweak

Analog Modem Tweak:


Open Regedit (click on start - execute - enter "regedit"-click ok)
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Class\Modem\000
(it could be 001, depends of your modem installation)

At right, find the binary value "Properties". Double click on it. Now you will see numbers and other characters. Check for "C2 01" at the second column, at the right of "0018". Just replace "C2" by "10"(ten) and "01" by "0E". Don't modify any other value. Click Ok and close regedit. Restart your computer.

Now, go in the control panel. Double click on Modems. Click on the properties button. Now check for Maximum Speed: There are 3 new speeds available!! These speeds can really work with your modem, it's just the maximum speeds for your port.


Note: your computer must have a 25mhz processor minimum to use this tip.

Try all of the 3 speeds to look which is the best for your configuration. Some speeds may not be supported, in this case try a lower speed.

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Losing Internet Connection Fix:

If ur ISP stoped working do this.Check ur browser options & make sure that they read "no proxies" still no luck try useing Repair toll by [Control Panel-Add/remove programs-repair internet IE] still no luck the try [Start- Run, type Regedit,delete the HKEY_LOCAL_MACHINE\SYSTEM\Current control set\Services\Winsock key] then also delete
HKEY_LOCAL_MACHINE\SYSTEM\Current control set\Services\Winsock2 KEY.

Restart system.


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Here are three easy ways to improve your dial-up modem performance:

1 ) You can't assume that just because you connected at a speed like 48.3KBps that you will stay there. Today's modems automatically fall back to a lower speed if the line noise is too high to maintain a faster connection, but sometimes they fall back too soon or too far.

Here's how to do it:

Click Start the button.
Select Settings.
Click Control Panel.
Double-click on the Modems icon.
Select your modem.
Click the Properties button.
Click the Connections tab.
Click the Advanced button.
In the "Extra settings" field, type S36=7
Click OK to save your settings.

This will force your modem to try to stay connected at high speeds in two different ways before dropping back to an asynchronous mode with auto speed buffering.

2 ) With Windows 95 and 98, there is an easy way to increase the speed at which you connect to your ISP. To do this:

Click the Start button.
Select Settings.
Click Control Panel.
Double-click on the Modems icon.
Select your modem.
Click the Properties button.
Click the Connections tab.
Click the Advanced button.
In the "Extra settings" field, type S11=50
Click OK to save your settings.

3 ) If you are experiencing a lot of modem timeouts with your system, you can change the SLOWNET value in the Registry

Click Start the button.
Select Run.
Type "regedit".
Go to HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Class\Net\0000 (0001 etc).
Change the SLOWNET value from 01 to 00.

If you suffer from random disconnections using your modem, you can improve reliability by using the following modem init strings.
Place the following values into your modem init string:

&U15&N15

This eliminates retrains

You might also try:

S10=30 or even S10=50

(all modems) as this gives protection against line drops due to short noise bursts or carrier interruptions.