1
vote
0answers
20 views

minimum allowable CPU speed

How can I determine the minimum allowable speed for my CPU to run the computer. Having the option to reduce the CPU to 0 is not logic nor allowable in Win8. Even if you set the Max. processor ...
2
votes
1answer
68 views

Force a program to consume at most x% of CPU time [duplicate]

Is there a way to force a specific program to use less than 100% processor time even when the CPU would be idle otherwise? Using process priority, we can adjust how much resources a given program ...
0
votes
0answers
39 views

Disable 2 cores to meet 95w TDP

I have a Phenom II X4 965 BE CPU on a M5A78L-M LX/BR motherboard. The motherboard supports processors of maximum 95W TDP. The CPU is 125W TDP. So I disabled 2 cores of the CPU trying to avoid the ...
0
votes
0answers
75 views

Reducing CPU load to absolute minimum

I have had a couple of things gone missing I believe stolen in my shared apartment and want to run my laptop constantly with a webcam attached, running webcam surveillance software to record/ take ...
2
votes
2answers
188 views

How to limit my CPU power programmatically on Windows 7?

Whenever I run a CPU-heavy activity (like compressing a big set of files into an archive for example) my CPU switches to its full throttle (maximum frequency) and shuts down of overheat in less than a ...
0
votes
1answer
883 views

Underclocking Haswell for power saving

I have been reading up on Intel's new Haswell processors, and it seems that the K-series is designed for overclocking. But what if I want to underclock? Do I still need to buy a K-series processor? ...
1
vote
2answers
205 views

Low processor performance after removing and then plugging the power cord

It's really confusing. When plugged in, everything is lagging. On battery everything goes smooth, three times as fast. I looked into power options, set everything to default and tried the three ...
2
votes
2answers
259 views

Do ULV Core i5 CPUs consume same power as i7 CPUs if they use same TDP?

Title says it all really: If you have a Core i5 CPU and its TDP is 17W and there is a Core i7 CPU which also has TDP 17W, will they consume the same battery power even though one runs faster? I am ...
0
votes
1answer
630 views

How to find different Intel processor's P-states?

Different p-states will let processor core work at different frequency level and voltage level. It's enabled by Intel Enhanced Speedstep technology. I want to do some power management research. ...
1
vote
1answer
394 views

Power management in Solaris 11 using poweradm?

In Oracle Solaris 11.1, pmconfig had completely vanished, and poweradm is available instead. While pmconfig was still available, I used to... Auto suspend : Let my server suspend from 2 AM through 7 ...
6
votes
1answer
4k views

How does windows “limit” the CPU (Power Options / Battery saving)

Can anyone explain how Windows effectively limits the CPU? Last time I tried some tricks to let my laptop not overheat, so I tried limiting the CPU to 70%. As for my suprise it stopped my laptop ...
0
votes
0answers
45 views

Advanced power options - processor power managment [duplicate]

My cpu has p states at 2.3 ghz, 2.1 ghz, 1.1 ghz, and 800 mhz. In the advanced power options-processor power management. Windows allows you to change the percentage. Does this percentage get "rounded" ...
2
votes
0answers
186 views

CPU (?) Clicking Sound During Resource-Intensive Tasks

I just bought a new computer (Lenovo Yoga 13, with integrated graphics and SSD). Whenever I bring it out of sleep, or do something resource-intensive (such as heavy Photoshop work), I hear a scratchy ...
3
votes
1answer
253 views

CPU clock scales down so computer is unusable after switching to battery

When I am plugged in my laptop runs great however when I unplug it and I'm on battery power my CPU clock speed scales down pretty much all the way. I know this is happening by monitoring the clock ...
1
vote
0answers
275 views

Sempron 3500+ never clocking up (always at 800MHz)

According to CPUID CPU-Z and Windows Vista resource monitor the AMD Sempron 3500+ (1800MHz) in this Packard Bell Easynote SJ51 is never clocking higher than it's lowest speed. It's running at 52C so ...
2
votes
2answers
2k views

How can I manually adjust a Core 2 Duo T5550's clock in Windows 7?

In Linux there is a manual control for the CPU's clock, which allows the user to precisely specify each core's frequency. In my case the available options are "Auto", "900MHz", "1.3GHz", and "1.8GHz". ...
0
votes
1answer
1k views

Windows 7 power management — vCore goes from 0.9V to ~1.30V

I have a brand new computer (built yesterday) with an AMD Phenom II X4 965 on an ASUS M4A89GTD Pro motherboard. Today I noticed heavy vCore fluctuations: between 0.90V (idle) and ~1.30V (load). CPU-Z ...
0
votes
1answer
72 views

Changing CPU power usage in WinXP

I have Win7 and an overheating processor. In normal circumstances, I can set the power usage (customizing Power options in control panel) to 80% (or whichever percentage I want) and then it does not ...
2
votes
2answers
3k views

How can I make the CPU to switch from “minimum processor state” to “maximum processor state” much much faster?

In Windows 7, in "Power options", the "minimum processor state" is set to 5%. Because of this, some programs are really slow. For example when I compile source code, the compilation time (Delphi 7) is ...
2
votes
2answers
1k views

Processor not running at max speed

My laptop has an Intel Core 2 Duo T9300 which should be running at 2.5GHz, however CPU-Z consistently reports my Core speed at right under 1.6Ghz (8x multiplier and ~200MHz Bus Speed). Even when I'm ...