Delay Prior to Thermal

This BIOS feature is only valid for systems that are powered by 0.13µ Intel Pentium 4 processors with 512KB L2 cache. These processors come with a Thermal Monitor which con- sists of an on-die thermal sensor and a Thermal Control Cir- cuit (TCC).

When the Thermal Monitor is in automatic mode and the ther- mal sensor detects that the processor has reached its maxi- mum safe operating temperature, it will activate the TCC. The TCC will then modulate the clock cycles by inserting null cycles, typically at a rate of 50-70% of the total number of clock cycles. This results in the processor "resting" for 50- 70% of the time.

As the die temperature drops, the TCC will gradually reduce the number of null cycles until no more is required to keep the die temperature below the safe point. Then the thermal sen- sor turns the TCC off. This mechanism allows the processor to dynamically adjust its duty cycles to ensure its die temper- ature remains within safe limits.

The Delay Prior To Thermal BIOS feature controls the activa- tion of the Thermal Monitor's automatic mode. It allows you to determine when the Pentium 4's Thermal Monitor should be activated in automatic mode after the system boots. For example, with the default value of 16 Minutes, the BIOS acti- vates the Thermal Monitor in automatic mode 16 minutes after the system starts booting up.

Generally, the Thermal Monitor should not be activated immediately on booting as the processor will be under a heavy load during the booting process. This causes a sharp rise in die temperature from its cold state. Because it takes time for the thermal output to radiate from the die to the heat sink, the thermal sensor will register the sudden spike in die temperature and prematurely activate the TCC. This unnec- essarily reduces the processor's performance during the booting up process.

Therefore, to ensure optimal booting performance, the activa- tion of the Thermal Monitor must be delayed for a set period of time.

It is recommended that you set this BIOS feature to the low- est value (in minutes) that exceeds the time it takes to fully

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GX21, B5102 specifications

The Tyan Computer B5102, GX21 is a cutting-edge server motherboard designed to cater to the needs of performance-intensive applications. Built with the latest technologies, it represents the fusion of processing power, reliability, and flexibility, making it an ideal choice for businesses and data centers.

One of the standout features of the B5102, GX21 motherboard is its support for dual Intel Xeon processors. This capability enables it to handle heavy computational tasks and offers remarkable scalability. The motherboard supports various Intel Xeon Scalable processors, which incorporate features like advanced security and memory management, ensuring that users can effectively manage their workloads while maintaining efficiency.

In terms of memory, the Tyan B5102, GX21 supports up to 2TB of DDR4 memory across its 16 DIMM slots. This substantial memory capacity allows for high-performance computing and data processing, making it suitable for applications ranging from virtualization to big data analytics. The motherboard also supports memory speeds of up to 3200MHz, ensuring rapid data access and improved performance in memory-intensive tasks.

The B5102, GX21 motherboard is equipped with multiple expansion slots, including PCIe 4.0 slots, which provide ample room for additional graphics cards, storage controllers, and network interfaces. This feature enhances the motherboard's capability for custom configurations, allowing users to tailor their systems to fit specific application requirements, whether for gaming, simulation, or scientific computation.

Another notable aspect of the Tyan B5102, GX21 is its support for various storage technologies. It features multiple SATA interfaces for traditional hard drives and SSDs, as well as M.2 connectors for NVMe SSDs. This flexibility ensures that users can achieve optimal performance and efficiency in data storage, with quick access speeds and reliable data management.

The motherboard also prioritizes connectivity and manageability. Built-in dual Gigabit Ethernet ports enable efficient networking, while dedicated management interfaces allow for remote monitoring and control, making it easier for IT departments to maintain and manage server workloads.

In conclusion, the Tyan Computer B5102, GX21 is a robust motherboard that stands out for its powerful processor support, extensive memory capabilities, and ample connectivity options. It is a versatile and reliable platform suitable for various high-performance applications, making it an excellent choice for modern data center environments.
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