| 摘要 |
<p>PROBLEM TO BE SOLVED: To conduct system operation with optimum power consumption by deriving maximum performance from the information processing system in proper environment. SOLUTION: The system operating in proper environment (a) detects a decrease (h) or small tpd (i), the system operates while the cooling fan is reduced (b) in air capacity and if no improvement is obtained, a heat generating dedicated circuit is placed in operation (c) to put the system back to proper environment value (j). When a Tj rise (k), large tpd (l), or an increase (m) in supply current quantity is detected, the air capacity of the cooling fan is increased (d) and if improvement is still not obtained either (n), dummy operation (e) is interposed to make the operation of the system slow. According to circumstances (o), at least one of a decrease in operating frequency (f) and a decrease in supply voltage (g) is made and when a proper (p) is obtained, the system is placed in the operation (a) in a normal state.</p> |
