My daughter has complained that her machine feels sluggish and slower than usual for a while and I have been less than attentive, putting it down to her impatience. The board is an A7N8X-E Deluxe at Reev 1013 with a 2400 Mobile Athlon XP-M processor, about which the writeup at Wikipedia is extremely complimentary: Athlon XP-Ms were popular with desktop overclockers, as well as underclockers. The lower voltage requirement and higher heat rating resulted in CPUs that were basically "cherry picked" from the manufacturing line. Being the best of the cores off the line, the CPUs typically were more reliably overclocked than their desktop- headed counterparts. Also, the fact that they weren't locked to a single multiplier was a significant simplification for the overclocking process. Some Barton core Athlon XP-Ms have been successfully overclocked to as high as 3.1 GHz. As per AsusProbe, her processor is only running at 800 MHz. That's 1/3 of what's possible and less than half the1867 it should be. Confirmed this with CPU-ID, so it really is pitiful. The BIOS settings were on Automatic, and the grayed out values (identified by square paren set) look like the correct numbers (14X is spot on for a 2400 processor). Not knowing why the actual was only 6X, I tried to force a higher rate by modified the settings as shown behind the slash. New effect: zilch. Code: Advanced Chipset Features CPU External Freq. (MHz) 133 MHz CPU Frequency Multiple Setting Auto / Menu CPU Frequency Multiple  14.0X / 14.0X System Performance Optimal / Aggressive CPU Interface Optimal Memory Frequency SPD Resulting Frequency 166 MHz Memory Timings  Optimal SDRAM Active Precharge Delay  7 SDRAM RAS to CAS Delay  3 SDRAM RAS Precharge Delay  3 SDRAM CAS Latency  2.5T FSB Spread Spectrum 0.50% AGP Spread Spectrum Disabled CPU Vcore Setting Auto / Manual CPU Vcore  1.575V / 1.650V Graphics Aperture Size 64MB AGP Frequency Auto System BIOS Cacheable Disabled That it is running slower is not her imagination. When the CMOS was lost due to a weak battery, the previous settings disappeared. They must have been set to maximize performance from the Mobile chip. If anyone can point out what it takes to make the Mobile chip run faster I would certainly appreciate it. Note: When external frequency is forced to 166 to match the memory, the chip accepts it and runs at 998 Mhz.