Which of the following RAM modules required 8 ns DRAM chips and was capable of operating at
125MHz?

A.
PC66

B.
PC100

C.
PC133

D.
PC800

Explanation:
The PC100 SDRAM modules required 8 ns DRAM chips and was capable of operating at 125
MHz, the SDRAM modules prior to the PC100 standard used either 83MHz chips (12 ns) or 100
MHz chips at 10 ns.
Incorrect Answers:
A: The PC66 chip ran at a clock speed of 66 MHz.
C: The PC133 chip ran at a clock speed of 133 MHz.
D: The PC800 chip ran at a clock speed of 800 MHz.References:James G. Jones and Craig
Landes, A+ Exam Cram 2 (Exams 220-301 and 220-302), Second Edition, QUE, Alameda, CA,
2004, p. 116