Examkin

Soru

Zorluk: OrtaCPU Architecture Cooling and Sockets

A technician is configuring a desktop computer used for financial modeling. The motherboard features a standard 4-pin CPU header for thermal management. Which cooling control technology does the fourth pin provide to dynamically adjust the processor fan speed based on real-time internal temperature sensors?

  1. Pulse Width Modulation (PWM)Cevap
  2. B
    Variable Analog Voltage Scaling
  3. C
    Thermoelectric Peltier Effect
  4. D
    Dual-Channel Memory Bus Pacing

Cevap

Pulse Width Modulation (PWM) is the technology that utilizes the fourth pin on a 4-pin CPU fan header to dynamically regulate fan speed using digital pulse signals.
Pulse Width Modulation (PWM) uses a high-frequency control signal on the fourth pin of a CPU fan connector to adjust fan speed continuously based on motherboard and CPU thermal telemetry.

Adım Adım Çözüm

1
Identify the standard pin functions on a motherboard CPU fan header
Standard 3-pin headers provide Ground, +12V DC power, and a Tachometer signal for monitoring rotation speed.
Understanding 3-pin limitations helps clarify what the fourth pin introduces.
2
Determine the function added by the fourth pin
The fourth pin carries a Pulse Width Modulation (PWM) control signal.
PWM allows fine-grained, dynamic duty-cycle adjustments to control fan speed precisely without varying the main supply voltage.

Anahtar Kavram

CPU Thermal Management and Fan Control Technologies
Bu soruyu puanla

Konular

CPU Architecture Cooling and Sockets

Bu konudan daha fazla soru