Вот что я нашел C75. APIC

Вот что я нашел

 
C75. APIC Failure at CPU Core/System Bus Frequency of 766/66 
MHz 
Problem: Operation of the Advanced Programmable Interrupt Controller (APIC) with the Celeron processor 
is problematic at the CPU core/system bus frequency of 766/66 MHz. With the I/O APIC enabled in BIOS, the 
Celeron processor may read an incorrect value from an APIC register. The Celeron processor may also 
randomly corrupt the vector field of an otherwise valid APIC message. The invalid vector may cause 
unexpected system behavior. 
Implication: If this erratum occurs, the processor may hang or cause unexpected system behavior. The 
Celeron processor is commonly deployed on platforms with the I/O APIC option disabled. These systems are 
unaffected by this erratum. 
Workaround: The system BIOS can disable use of the I/O APIC at the affected frequency. 
Status: For the steppings affected see the Summary of Changes at the beginning of this section. 
 

Что такое APIC и как его отключить, если BIOS'е этого нет?