Last night, the roommate told me that his 256M DDR400 memory suddenly became a 64M DDR266. Before the memory is loose, it is re-inserted, and there is CMOS to discharge.
I have seen that I have seen a technical article: Since his 128msDRAM memory is not plugged in, only 64m can be detected in the Win98 of the dual system, and it will not be able to enter the Win2000 system. So I guess is the problem of memory installation, so let him re-insert the memory once or plug in another memory slot. He put the host flat on the ground, and the memory is pulled out and then plugged into the original memory slot, restart, result 256M is back.
Later, I seriously looked at it. He turned out that the Barton2500 CPU became 1100MHz (100 × 11), and the memory was 256MDDR266. It must be caused by CMOS discharge, (but forgetting Barton2500 main frequency and foreign frequency, but I usually have a computer magazine, I will find it.) Barton2500 outer frequency is 1853MHz, the outer frequency is 166MHz, No wonder the memory is 266! Finally, set the outer frequency of the CPU 166 and optimize the BIOS settings with his computer. Yeah! ! ! Computer is still restored! ! ! Barton2500 , 256mddr400.
But my computer is still PIII866 256SDR -_-!
Computation of the PR value:
Thoroughbred (Thorton) PR value = core frequency × 3 ÷ 2-500
Barton's PR value = core frequency × 3 ÷ 2-200
