Biostar

Motherboard model M7TDB use Intel 845 Chipset.According to Intel 845 Chipset specification, It only supports AGP 4X graphic card with 1.5V operating voltage. That mean, Intel 845 chipset's motherboard will not support AGP 2X graphic cards which Is required 3.3V as operating voltage.

That is the LAN function which is inculded under Intel South Bridge (ICH2) Chipset. With Real-Tek LAN chip on board, you don't have to add a PCI LAN card and you can use the intro-net function with M7TDA.

If you need to increase the System Video's performance, you need to Increase the system Frame Buffers Size. The range of Frame Buffer size Is from 2M to 32M. The larger Frame Buffer size will get the better Video performance.
However, the Frame Buffer Memory Is took from the System Memory. Therefore, If you are using 128M SDRAM, 32M Is used by the Video function, so, only 96M Memory Is available for the system. The Frame Buffer Size Is located --> at Advanced Chipset Features --> Frame Buffers Size, under CMOS Setup Menu.

M6VLB with VIA Apollo PLE133 northbridge which graphics core is taken from Trident Blade3D with 8Mb of system frame buffer sizes.However, the M6VSA Is using PM133 as northbridge which taken a graphics core from S3(a combination of the 3D-component from Savage4 and 2D from Savage2000) with 32Mb of system frame bffer size. The larger the system frame buffer size the better the Video perfromance.

The TWL0423F BIOS, which is published on the website is only for the latest version of M6TWL, Version 2.0. In TWL Version 2.0, the BIOS EEPROM sizes are reduced to 2MB. Therefore, "The File Size Does Not Match" message will pop-up, when reflash 2M BIOS into 4M EEPROM.

Basically, the M6VCG and M6VCT have same functionality and specifications .The major different is M6VCT can support Intel Tulatin CPU.Tualatin CPU utilized .13-micron process technology also come with 512KB of Level 2 cache. For further information regarding the Tualatin CPU please visit http://www.intel.com.

The system is designed to support Intel Tulatin CPU, so it is just to support Vcore voltage between 1.25V and 1.8V, only. The Intel Celeron (PPGA Type) CPU and Cyrix III CPU are used over this voltage range, so the motherboard is unable to support it.

The BIOSTAR Watchdog Technology was designed to protect PC from inappropriate over-clock situations. Any Over-Clock that reaches the threshold settings, the system will lock up. In this case to active the system again, you must opening the case and Clear the CMOS. However the Watchdog technology can be able to squandering your time to skip this procedure. The only things you need to do are unplugging and re-plug the Power cord. After that, press the key and power on the system simultaneously to restart the system. The Watch Dog technology will Load the Fail Save default. M7NCG Motherboard support this function.

The SPDIF (Sony/Philips Digital Interface) is the newest audio transfer file formatting which provides impressive quality through optical fiber and allows the users to enjoy digital audio instead of analog audio. Normally there are two S/PDIF outputs, one for RCA connector, the most common one used for consumer audio products, and the other one is for optical connector with a even better audio quality. Through a specific audio cable, users can connect the SPDIF connector to other end of the S/PDIF audio module, which bears S/PDIF digital out put.
Attached is the Pin assembly of SPDIF connector for your reference

Basically, the anti-Intrusion is the name as "Chassis Open". This function is able to detect whether the PC Case is open or not. For instance, if the PC case is Open, the Motherboard will cause the beep sound and the error Message will also show up on the screen to warn the customer that the PC case was not closed properly. For your information, you can active this function under the CMOS Setup Menu by following the instructions below

1. Press "Delete" Key to enter into the CMOS Setup Menu during the boot screen.
   
   
2. Select "PC Health Status"
   
   
3. Setup the "Chassis Open Warnning" to "Enabled"
   
   
   
4. Save and Quit the CMOS Setup Menu.
   

By the way, the PC case must support anti-Intrusion to use this function.