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| Athlon XP 2600+ CPU Speed, Multiplier, and System Bus | |||||
| Question | |||||
| I just installed my new ASUS A7V8X-X Motherboard and AMD XP 2600 + 333 FSB Processor . I installed a 256 Mb pc2700 memory chip . In the startup process the system jumps to the bios setup refering to cpu multiplier . What are the setup perameters I should be using ? Thanks in advance . Dave | |||||
| Answer | |||||
| There are three types of AMD Athlon XP 2600+ desktop processors.
Athlon XP 2600+ with 256KB L2 Cache and 266MHz FSB CPU Speed: 2133MHz (2.133GHz) CPU Frequency Multiplier: 16.0x CPU External Frequency (MHz): 133 Athlon XP 2600+ with 256KB L2 Cache and 333MHz FSB CPU Speed: 2083MHz (2.083GHz) CPU Frequency Multiplier: 12.5x CPU External Frequency (MHz): 166 Athlon XP 2600+ with 512KB L2 Cache and 333MHz FSB CPU Speed: 1917MHz (1.917GHz) CPU Frequency Multiplier: 11.5x CPU External Frequency (MHz): 166 The CPU External Frequency for Athlon XP is half of the FSB Frequency. Thus, with a 333MHz FSB, the CPU External Frequency is 166MHz. On the ASUS A7V8X-X Motherboard, for a 333MHz FSB Athlon XP, the setting for CPU External Frequency (MHz) should be 166/33. 33MHz is for the PCI Bus, while 166MHz is for the System Bus (a.k.a. External Bus). For PC2700 RAM, the Memory Frequency is 333MHz.  Date: 2004-03-04 | |||||
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