Undervolting guide

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undervolting guide

I published a more comprehensive guide for Notebookcheck back inbut I felt it was time to update the guide for There have been quite a few bug fixes as well as a few new features added, but I also wanted to improve the readability and organization of the old guide. The current version of ThrottleStop at the time of writing is 8. ThrottleStop is an original program by Kevin Glynn, a. It started as a simple means to counteract some throttling mechanisms used in older laptops, check temperatures, and change CPU clock speeds.

However, there have been quite a few bugs with XTU involving lost settings and frequent hard crashes upon resume from sleep, and for those reasons I have personally abandoned XTU in favor of TS. You might be thinking that these kind of programs are for the most advanced users or geeks who spend days trying to get their benchmarks a few points higher or temperatures C lower.

While those stereotypes might be true for some TS users, the fact is that a few minutes of tweaking with the program will likely provide you with significant objectively measurable decreases in temperatures and increases in battery life and real-world performance. A standard disclaimer when adjusting voltages and other settings on your CPU. There has never been a CPU damaged by this software to my knowledge.

After first opening ThrottleStop, you will be greeted by the main window of the program interface. This will clear any settings or registers set by the program. If you ever run into problems with your settings causing immediate crashes or all else fails, delete the ThrottleStop.

If this is your first time tweaking your CPU registers, a lot of this terminology will be new to you. However, once you grasp the basic meaning and functions of each setting, tweaking will start to become second nature to you.

The main window of ThrottleStop 8. Custom Logo — Starting with TS 8. Note that the app will minimize to either the tray or the taskbar depending on how the app is configured. Save — Saves the current settings to the ThrottleStop. Options — Goes to the options menu for ThrottleStop. Here, you can rename the 4 possible profiles, set tray icon settings, enable temperature alarms, battery profiles and monitoring, closing app behavior, and HotKeys.

We will return here later when we setup profile alarms based on temperatures. TS Bench — Opens a built-in benchmarking program. Though not strenuous, it is useful for detecting how recent tweaks you made will affect your CPU under load. In the top left area of the window, you will see four radio buttons.Log in or Sign up.

How to Undervolt Your CPU: Boost Laptop Battery Life, Reduce Heat and Quiet Your Fans

What is Undervolting? What is Intel SpeedStep Technology? RMClock x64 Drivers. Last edited by a moderator: May 8, Great job flip. Now i can link to this page instead of trying to explain it myself. Great stuff, rep for you. Looking forward to more info. Johnny TApr 1, An excellent guide. I have been undervolting for several years. Less heat also mean less fan noise. I just keep the CPU stress test running and drop the voltage at the maximum multiplier at about 1 step every 15 seconds starting at 1.

This very quickly finds the voltage which is definitely unstable and BSODs keep a recod of the voltage as you drop it. I then put the voltage back up two steps and run an overnight stress test. John RatseyApr 1, Nice work! Although I still can't give you rep points.

ShadowfateApr 1, Pics of my T undervolted to. Keep computer on "Performance on Demand" for optimal power saving. Thats underclocked to mhz 0. Thats major cpu handicap, undervolting isnt really making any gains at these settings I suggest applying these settings under the "Power Saving" profile for superrrr battery savings.

Good stuff, wish I had of known about this sooner!! I put it up to max clock when I'm running applications like Photoshop, but for using microsoft office, watching youtube, browsing the internet, and watching non-HD videos it works fine.

I've had it clocked like this for quite a while now. FLIPfire maybe you should make a note saying that "If the person overclocks his Cpu when gaming he should use that speed as the basis of his undervolting since overclocking when you already have a a decent undervoltage setup will give you more trouble". Please make the words more sensible. You must log in or sign up to reply here.

Show Ignored Content. Similar Threads - Undervolting Guide. Replies: 12 Views: TGFB3 Mar 29, Replies: 3 Views: 1, Best config for undervolting asus rog g core i7 h gtx ti? Replies: 2 Views: 1, Replies: 6 Views: 1, LoneSyndal Feb 18, Replies: 17 Views: 1,When most people are asked what the main problems of their laptops are, the ones with Ultrabooks and other ultraportable systems would probably say performance while the ones with enthusiast and gaming laptops would probably say battery life, heat and annoyingly loud fans.

In order to reach high overclocks, generally we have to overvolt, or increase the voltage, of the CPU. As overclocking and overvolting will increase power consumption in a CPU, you can imagine that doing the opposite will reduce power consumption, which is very useful for devices running on batteries, such as laptops.

Now one question you may have is why is this possible and why do CPU manufacturers not use lower voltages by default. The answer to this is because CPUs are manufactured using mass production methods and specifications are rated very conservatively to ensure every chip is able to operate at a certain voltage at a certain frequency.

undervolting guide

This means some chips will be able to run at significantly lower voltages at the same frequency without issue while others cannot. Before we begin, keep in mind that overvolting and undervolting a CPU beyond manufacturer specifications may damage your system, so use this guide at your own risk.

Additionally, this guide is designed for Intel systems running Windows only. In order to do this, simply click on the wrench on the top right corner of the system monitoring section to open the System Monitor configuration.

From here, scroll down to core voltage and check the box to enable core voltage monitoring. Go ahead and close the System Monitor configuration box.

Use this as the baseline voltage of your system without any undervolting. This will bring up a list of CPU variables that can be changed such as voltage, turbo boost, etc. Mouse over to the Core Voltage Offset and reduce your voltage by small increments and clicking apply. A reduction in voltage is denoted by a minus - symbol before a number.

Once you reach Then continue lowering voltage by 0. Then, record this number, reduce the undervolt and stress test the system.

undervolting guide

Once your system is fully stable with the new, lower voltage offset, congratulations! You have successfully undervolted your system. Depending on your undervolt, you may see some drastic improvements in battery life, lowered heat and less fan noise. Were you successful in undervolting your system?

Let us know in the comments below! Are you a part of the Gear Primer Community? Want to discuss the latest in cars, gear, technology and more? Join Us! Sign in.ThrottleStop is one of the most useful programs for any PC user, but it can be intimidating to use at first glance. This primer walks readers through installing ThrottleStop, explains its basic features such as undervolting and temperature profiles, and guides them through some basic optimizations that any user could benefit from. Note: Though this version of the guide is still largely accurate, I have updated and reorganized this guide for here.

Over the years, ThrottleStop has been tirelessly updated by its creator and has now collected quite an array of extremely useful features not just for avoiding throttling and overheating, but for increasing the performance, battery life, and functionality.

As ThrottleStop sees constant updates this guide will use the latest version at time of writing, 8. There are an overwhelming number of settings which can be quite intimidating at first, but once you understand their basic functions and learn which settings are useful to you and which are not, it is relatively simple to use. Lower temperatures and longer battery-life mean higher quality of life for both you and your laptops!

XTU and ThrottleStop control many of the same registers and so do not play well together. A recommended step once you have finished this guide is to set ThrottleStop to launch on startup using Task Scheduler. Be sure to delay startup by 10 seconds to avoid problems with the Taskbar icons. After first opening ThrottleStop, you will be greeted by the main window of the program interface.

This will clear any settings or registers set by the program. Best Displaysfor University Students. To go back to its default behavior, you will need to exit ThrottleStop, delete ThrottleStop. TS Bench - Opens a built-in benchmarking program. Though not strenuous, it is useful for detecting how recent tweaks you made will affect your CPU under load. In the top left area of the window, you will see four radio buttons.

Each one has a customizable name in the Options dialogue and each refers to a separate settings profile for the program. A few settings are universal across all profiles, but most settings are profile-specific. We will discuss using more than one profile later. Below that are general settings that affect either CPU clocks or the way the program functions:.

For most newer chips, this method is not used, and enabling the feature in ThrottleStop will have no effect. Set Multiplier - Another somewhat obsolete setting; on older CPUs, the clock speed is determined by multiplying the bus speed of the CPU by a multiplier.

On modern CPUs, the multipliers are set differently. Setting it higher will have no effect, and setting it lower will be the same as not setting it.Small form factor enthusiasts repeatedly stuff power hungry components into tighter spaces. Sometimes things get too hot, too loud, or too powerful. Or maybe a power supply is starting to fail, etc. Luckily, one can undervolt their most power hungry component, which is more likely than not the GPU, and can achieve power savings with temperature reduction all without sacrificing performance.

And undervolting the GPU can be done quite quickly by any layperson. P Kill a Watt for monitoring electricity usage from the wall. It is my opinion that drawing obscene amounts of power to run these stress tests is just too unrealistic.

How to undervolt your gpu

Benchmarks should be stressful enough, else what are they benchmarking? Due note that it is easiest to perform undervolting with a PSU that is in good working condition with enough power to supply components at stock and then transfer to a smaller PSU if desired. This is also not a requirement, but saves troubleshooting time for those sticking w of components in with a w PSU. HWiNFO important sensors highlighted. For instance, we want to achieve temperatures below thermal throttling and power usage below the budget for the GPU.

Then benchmark the gpu with timespy. The score you are interested in is the graphics score. Use the process listed below. Timespy score we're interested in.

How I set up my spreadsheet for recording data. GPU-Z depicting manufacturer's boost clock. This is somewhat counterproductive for us as any voltage increases to reach higher frequencies will cause an increase in power usage and blow our budget. I chose my target frequency to be mhz — mhz over boost and 26mhz under max, as during benchmarking the gpu clock was pinned at mhz most the time this is where HWiNFO average readings can come in handy!

I change my target frequency later on. Find our target voltage of mv and take note of the frequency mhz in the screenshot. Default frequency curve.

Our target frequency mhz is greater than mhz by 51mhz, so we switch back to the starting window and increase the core clock by 51mhz. Increase core clocks by 51MHz. Ensure the windows icon is selected to apply profile on boot. It is rare that undervolts would cause significant instability like blue screens, system freezes, or screen artifacts.

Spreadsheet tracking the undervolt process. These are good results that demonstrate that there is no performance loss from undervolting, yet one can mitigate heat and power usage. I decided to double down on undervolting and see just how far we can take this. Undervolted to mv at MHz. Final spreadsheet after additional undervolting. To me, the loss in performance in this chase to undervolt is greatly outweighed by the gain in efficiency.

Still not convinced? I find this incredible. HWiNFO showing our mv undervolt is respected. Not to go on a rant, but people put too much weight on stress tests, and some may find this guide woefully lacking if a stress test section is not included.

Those same people will disagree amongst themselves about which stress tests should be ran, how they should be ran, and the durations of the tests.We talked about some of the important basic tweaks that would allow you to increase performance and battery life of your Windows 10 computer in the first part of this article.

Undervolting means to reduce the voltage a component receives. Why does this matter? Lowering the voltage, even by relatively small amounts, reduces the power draw of the components in this case, the CPU and thus decreases the heat generated while increasing battery life. Actually, there is little to no risk involved. The worst thing that can happen is that if you reduce the voltage too much, the computer may crash, and you will have to decrease your undervolt that is, give a little more voltage back.

CPU Performance Tuning Guide _ Featuring an i7 9750h!

Again, although this is a safe process with little to no chance to damage any components in fact, it should increase their longevity, as they will run coolerproceed at your own risk! Unzip ThrottleStop to the directory of your choice and run it as an administrator. I will get to the other functions of this software later. The basics you need to know is that first, ThrottleStop keeps 4 different profiles, which can be selected with the radio buttons numbered in the screenshot above.

Understand that most changes you make in TS are only for the profile you have selected. See what others have been able to successfully achieve stably and use that as a starting range. Your CPU may be even more capable of undervolting, or less. You will need to fiddle up and down a bit to find a stable undervolt. This will take a bit of time to get perfect as every chip is different.

To start undervolting on this profile, follow the following steps. The greater the undervolt, the cooler the CPU will run and the less power it will use. This can lead to temperature drops under full load of anywhere between C, meaning your computer will be able to operate faster for longer, all the while generating less heat.

At this point, once you have set up the undervolting, you can use Task Scheduler to start ThrottleStop with your computer and the undervolts will stick.

Depending on the quality of the design of your computer you may have issues with throttling, heat, fan noise, or maybe all three. Many, many notebooks are just not designed properly for the components they contain these days. Case in point: I first started using ThrottleStop years ago because of the overpowered but undersized Acer TG, which would throttle from 2. The The solution? I used ThrottleStop and its profile abilities to limit the peak clocks of the computer dynamically, based on the temperature of the CPU.

By limiting the clocks to 1. Unchecked, both of these machines ran into issues due to high CPU temperatures. These types of temperatures are terrible for the longevity of the components, including the GPU, SSD, and especially battery… Not to mention that these kind of temperatures result in your laptop fans sounding like a during takeoff. So, assuming you have an Nvidia card, check the box, quit and restart TS, then come back to the options menu.

There are 2 columns. What did we just do, exactly? We set up 2 separate temperature triggers for 2 separate ThrottleStop profiles which we will create shortly.

Intel Extreme Tuning Utility (XTU) Undervolting Guide

Setting a DTS of 8 means that at about 92C, your computer will switch to profile 2, which we will set up to be slightly slower. Setting the GPU of 89C means that if your GPU hits 89C, your computer will switch to profile 3 which will be the slowest one, designed to reduce temperatures. This is the profile that your machine will be using by default whenever you plug into AC, if checked that option.

If you want max performance, then leave everything else unchecked. For example, on an i7 HQ, turbo will go up to 3. This is good because it will keep temperatures down, however, it might be either too conservative for you it will run cool and could be running faster or not conservative enough if temperatures are still getting high without turbodepending on your system.

The exact temperature is up to your hardware and your taste, just remember that hotter temperatures mean shorter-lived components.However, given the colossal assembly line at which these processors roll out, some processor models are tested at voltages higher than they really need.

You save power when the CPU consumes less of it. This also leads to your system not heating up as much meaning the fans will no have to work as hard. Disclaimer: This process is straight forward and considered safe, but if you end up configuring the wrong thing, you could damage your PC. So do this exclusively at your own risk. Note: This is laptop exclusive because extending battery life is not a concern for desktops. Even though the core methodology works for both PC and Android mobile, we will cover only PC, as Android needs to be rooted for this process.

Lastly, this process requires patience, because there is a lot of testing involved. Overclocking requires that we modify hardware to perform at greater levels than it was tested at.

So, if you could make your CPU perform at the factory configuration by consuming less electricity, you will increase your battery life in two phases. Phase 1 is the actual electricity you save in operating the processor and phase 2 is the power you save when your fan does not have to turn on as frequently. This, in turn, can extend the life of the system as well. Here is how you can safely undervolt your CPU. To undervolt your CPU, your laptop should be fully charged before you get started.

It is a simple tool that this will serve our introductory purposes today. Make sure you take a system backup. In the off chance things do go South, you will need a backup in case restoration is needed. Upon launching XTU, you will be greeted with a splash screen with all the action items in a menu on the left. This will be very useful when you start tinkering with the voltage.

Additionally, run some stress tests on your system as well. Ideally you should let it run for at least 30 minutes. In this time your CPU will get hot and your fans will start running at full capacity. Once the test is complete you will have a very good reference to how your CPU normally behaves.

If your values are at default, they will all be in blue. Y ou will see a list of voltages at 0. What you want to do is click on this voltage and scroll up to when you start seeing negative voltages.


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