There's some reports that small amount of newly released HIS 4830 boards has performance issue. AMD has confirmed some
of them are loaded with pre-production BIOS that may slightly affect the performance. Please be reminded only a small quantity of HIS board
might be affected.

Please go through the following procedures to verify the issue and upgrade the BIOS.

Step 1: Verify the serial number
If your board happens to be in the following serial no. range, go to step 2 to run the GPU-Z checking.

* H081001881-H081001930
* H081002871-H081002880
* H081002881-H081002920
* H081018911-H081018960
* H081023731-H081023750
* H081031791-H081021890
* H081032991-H081021995
* H081035691-H081035788
* H081036931-H081037010
* H081037451-H081037560
* H081037761-H081037820
* H081038371-H081038410
* H081038821-H081038840
* H081038841-H081038940
* H081041271-H081041360
* H081042081-H081042130

Step 2: Check the shaders number:

1. Run the GPU-Z utility provided by Techpowerup.com http://www.techpowerup.com/gpuz
2. If the GPU-Z utility reports fewer than 640 shaders, please upgrade the BIOS

Step 3: Upgrade the BIOS:

1. Download the latest BIOS from here: http://download.hightech.com.hk/bios/HD4830_SJ3G01.ZIP
2. Boot up the HD4830 into Windows XP / Vista.
3. Unzip the HD4830_SJ3G01.ZIP into a directory
4. Go to that directory and run SJ3G01_00R_01.exe
5. After update BIOS complete, reboot the system.

The answer as follows:

1. Install on-board VGA driver and make sure it works properly.
2. Disable on-board VGA under Device Manager and then reboot the system.
3. Insert PCIe x1 card after disabled the on-board VGA.
4. Install PCIe x1 card driver and reboot system when prompted.
5. Back to enable the on-board VGA after PCIe x1 card work properly, and reboot system when prompted.

Recently, we have found out that X1K AGP series would not have DirectX enabled on  some KT400 motherboard when using Catalyst 6.5 or later. This will result a poor  performance or even error when running 3D applications/games.

Not all KT400 motherboard would have this problem. And not only KT motherboard, Intel/SIS may have this issue too. The driver fix will be available by October 2006.

For workaround, please use Catalyst 6.1 driver if you encounters such issue.

Users are recommended to check if they are affected by this issue. They can go to "System Information" -> "DirectX Diagnostic Tools" to check if DirectX is available or not. If not, users should uninstall the current installed display driver and re-install to use Catalyst 6.1.

Catalyst 6.1 is available at:

http://download.hightech.com.hk/driver/Radeon_8_205/8.205-060104a-029861C-ATI.zip

If DirectX is enabled, users/customers do not need to roll back to the old version driver.

HIS Turbo edition guarantees a dramatic range of overclockable speed on your card. All IceQ II series come with both Turbo and non Turbo (standard) editions. Check for the box containing this label. It identifies this is a "Turbo" edition card and marked with the guaranteed overclocking speed in core and memory.

Most of the HIS X850 and X800 series graphic cards are CrossFire Ready. For more information, please click here.

HIS CrossFire Editions are separated sold products which can work together with corresponding CrossFire Ready cards. For more information, please click here.

HIS IceQ / IceQ II series occupied double slots space and they suit on most motherboards available on the market, no matter PCIe or AGP. HIS would like to provide the approximate size of IceQ II and IceQ series graphic card for users to have further measurement.

• IceQ II Series - Width: 233mm, Height: 129mm, Depth: 57mm (approx.)
• IceQ Series - Width: 199mm, Height: 127mm, Depth: 49mm (approx.)

IceQ / IceQ II cards are designed to achieve the ultimate cooling effect, in case their heatsinks are larger than regular one and occupied more space. When users select CrossFire ready motherboard, HIS strongly recommends users pick the one contains 2 slots space in between 2 PCIe x16 slots. Beware some CrossFire ready motherboards only contain 1 slot space in between 2 PCIe x16 slots, these boards are unable plugged IceQ / IceQ II series graphic cards to run CrossFire. For more information, please click here.

The RADEON X1800 XT is the highest speed variant of the X1800 family with several unique characteristics. To achieve maximum performance and optimal power dissipation the XT supports dynamic clocking. The board boots into a low power mode at 600e/700m core and memory clocks and automatically accelerates to the standard 625e/750m clocks whenever full screen applications such as games are running. The X1800 XT also uses an efficient dual-slot fansink.

Power supplies with 450-Watt capacity and 30A current on 12V rail is recommended for single HIS X1900 series product. It requires a power supply with one 6-pin PCI Express® power connectors. This product should be connected directly to a PCI-E Express compliant power supply with 6 pin PCI-E power connection. Please consult your power supply vendor specifications to ensure your system meets the recommended functionality.