Turning display off makes CPU burn up and fan gets really loud on sony laptop with windows 8

windows-8 cpu fan sony-vaio laptop-display

274

This looks very much like Windows Automatic Maintenance.

You can confirm this (or anyway inveestigate the problem) by installing the latest Process Explorer and running it. Set it to display CPU load (Ctrl-I, I believe). Then, idle the PC, wait 15 seconds for the fan to rev up, wait another ten seconds to get a significant log, and exit idle status. The graph will almost surely show a CPU peak in the "blackout" period, and hovering the mouse over the graph will tell you what process was responsible.

In case it's indeed the maintenance process MSchedExe.exe, or if you just want to assume it is and see what happens, you can simply disable it (you can reenable it later. Or schedule it at night by having the PC automatically wake up).

open Settings
open Scheduled Tasks
open Library -> Microsoft -> Scheduler
look for Idle Maintenance Task
right-click to bring up the Task Menu
disable the task
OK close all
see what happens now

You'll do good to manually defragment your drive and/or run the .NET Optimizer from time to time, now that Windows won't do this on its own.

Personally, I feel that there are other tools that perform the same tasks better (jDefrag and various defraggers that operate on idle time, Piriform's CCleaner, AusLogic BoostSpeed etc.), but I'm not really into Windows 8, so take my advice with a large grain of salt.

274

Author by

Mike Cash

Updated on September 18, 2022

Comments

Mike Cash over 1 year

i want to display the content of a text file in a input text box.

<html>
<head>
<title>Write&ReadFiles</title>
<link rel="stylesheet" type="text/css" href="writeread.css">
<script src="write.js"></script>
<body>
    <h1>Write & Read Files</h1>
    <div class="read">
        <form name="form">
            <h3>File Name:</h3> <input class="input" name="textview" type="text">
            <h3>Text:</h3> <input class="input" name="textview2" type="text"><br><br>
            <input class="button" type="button" value="ENTER" onclick="doit()">
        </form>
    </div>
        <div class="write">

        </div>
    </body>
</head>

Javascript file:

var fs = require('fs');

function doit() {
    var text = document.form.textview.value;
    fs.readFile(toString(text), function(err, buf) {
        document.form.textview2.value === buf.toString();
    }); 
}

Any help will be appreciate it, thanks!

David Schwartz over 11 years

How long does the fan stay at high speed? It's possible the system is just taking advantage of idle time to do maintenance.
Sidd Singal over 11 years

@DavidSchwartz it stays at high speed for as long as the display is off. It starts 15 seconds after the display goes off, and it takes only about 15 seconds for the fan to go back to normal speed right after the display turns back on.

Sidd Singal over 11 years

I did a fresh install, and all of drivers are up to date. Although I did use a program called Driver Genius (the reason being I have two graphics cards but , but I can try going through sony's drivers. Thanks
Trevor Sullivan over 11 years

Those "driver installers" are very sketchy. I would recommend doing a fresh install without using Driver Genius, or any similar programs.
Sidd Singal over 11 years

Hmm that was my first inclination...I only used it because my laptop has hybrid graphics (both Radeon and Intel, thats why you see both of those graphics drivers in there) but before, they did not have a Radeon graphics update, and I really needed that graphics driver..it looks like they recently updated their website.
gronostaj about 11 years

Radeon drivers for hybrid graphics can't be downloaded from AMD website, you have too look for them on Sony website. There may also be some additional utilities that enable advanced power management features on your laptop, those should be available at manufacturer's site too.
Gizmo over 10 years

Driver genius is an excellent program, it downloads always from the device vendor page, and I have always the most up to date drivers and no problems ever :) so what's this big "Driver installers are sketchy" problem? They just look for a certain Hardware and Vendor ID and the download the drivers from the official websites (intel,nvidia,ATI,etc).
Tyson almost 10 years

@Gizmo computers I've repaired after driver installers or updaters were used always have crapware installed. I have yet to see one that ONLY installs or updates drivers. I've also found they don't always install the correct driver. Yep they are about as sketchy as typing "free antivirus" into google and installing a virus instead.