Introduction
BrazosTweaker is a tool for undervolting and underclocking AMD Brazos platform (Zacate E-350, E-450 / Ontario C-50, C-60, C-70, E2-1800) APU’s under Windows 7 (XP/Vista). By using it, you can achieve longer batterylife (lower power consumption) as well as lower processor temperatures.
Original version of the tool hosted at Google Code has been created by Martin Kinkelin and Sven Wittek. The successor version published here improves NorthBridge undervolting capabilities of the original tool:
- The original version of the tool had an error in its service implementation. Unlike the frontend application, the service missed to set up all necessary CPU registers, which prevented NB VID settings from taking effect after startup or resume. This had effect on both NB states (NBP1 as well as NBP0).
- The original version of the tool as well as original BIOS implementations incorrectly applied voltage settings of NB P1 state, which effectively made NBP1 to inherit NBP0 VID.
The improved version available here is fully inline with BKDG (BIOS and Kernel Developer’s Guide) for AMD Family 14h and is tested only on E-350 APU. Considering that all other APUs listed above belong to the same CPU family 14h, the improvements are expected to work on the rest of them as well. Notice that the original version could allow you to go very low with undervolting NBP1 state, because in reality it was faky. Using the same NBP1 settings with the new version may cause your system to crash. Basically, you need to find out valid NBP0 and NBP1 voltage settings as described below from scratch. To confirm improvements over the original settings you can compare tempeartures of your system against setup with the original tool. Remember to fix fan speed for the duration of your temperature tests.
Compilation/Reproduction
- Install Visual Studio 2013 Community Edition.
- Install Installer Project extension.
- Install SDK 7.
- Add
%VS100COMNTOOLS%..\IDEto thePATHenvironment variable.
Installation
To use the tool and it’s built-in service, you need to obviously install the given files from the Download section. It could be, that you need to download and install Microsofts .NET Framework 3.5 upfront, but only in case, it can’t be found.
If you already have a previous version of the BrazosTweaker (OntarioTweaker or PhenomMsrTweaker) installed, I strongly suggest to uninstall it first.
To install BrazosTweaker in Windows 8, you need to enable the .NET Runtime 2.0. You do that in the «Enable/Disable Windows features» that you’ll find in «Programs and Features»
Tabs
Once it has started up, you will see a window six different tabs. The three tabs on the left belong to states, which the CPU can be in, while the next two tabs show the setup for the two available NB (Northbridge) PStates. The last, but not least, is the status tab, which can be used for debug and more detailed info on the internal registers.
CPU PStates
Let’s start with the first three tabs.
If you use the E-350 APU, your system uses all three PStates, whereas on the C-50 only two of them are used.
You can see the current active PState by watching core progress bars followed by labels. The available PStates are called P0 / P1 / P2. PState P0 is always the fastest mode, while P2 (E-350) is the slowest one. Depending on the current workload of your system, it will switch dydmaically between them. As you can imagine, the P0 is drawing more current than P1 and P2, which is directly related to battery life you can get.
Voltage
With the tool, you can now customize the voltage, which goes into your CPU (CPU VID) for each of the available PStates. Furthermore you can change the divider to get to a different CPU clock than stock.
You can start with the following changes (these are working for most of the users)
- P0 — 1.225V
- P1 — 1.05V
- P2 — 0.85V
If you click «Apply» on the below right, these settings will be temporary set, until you restart or put your system into sleep. You can check the settings by using a well known tool called CPU-Z.
Clock/Divider
If you want, you can play around with the dividers to adjust used clocks for each PState. For example, I let my system run for a while on 400MHz, while lowering the voltage to about 0.7V.
Unfortunately you can’t overclock by using lower dividers, since the CPU seems to internally lock them to a specific value.
- Example:
- E-350 — 1.6GHz
- FSB 100MHz
- Multiplier 32x
- Divider 2
- Maximum clock 32/2*100MHz = 1600MHz
Even though you can select a divider smaller than 2 on an E-350, the CPU blocks that and just runs still at 1.6GHz!
NB PStates
Voltage
Because the NB (Northbridge) and the GPU (graphic unit) are sharing a separate powersupply, it is worth looking into lowering this voltage in addition to gain some more battery life.
Basically the adjustments you can do, need to be done the same way as for the CPU, except that only two PStates are available.
On my system, the following settings work stable:
- NB P0 — 0.85V
- NB P1 — 0.8V
Just a little lower and it hangs. Just press the Power button for a while and it will get back to life.
Clock/Divider
There is no opportunity to mess with the dividers on the NB so far.
Testing
If everything looks alright after you apply new settings, you can download FurMark, which is program to do some stress testing. Doing that, tells you, if the system is really stable in most cases. It avoids getting blue screens or freezes later, which can be really annoying.
One should stress each of the P-states and NB P-separately. This can be achieved by modifying the selecting specific Windows power options:
- Go to «Power Options» in the Control Panel.
- In the «Power Options» snap-in, click «Change plan settings» against your active power plan.
- In the «Edit Plan Settings» snap-in, click «Change advanced power settings».
- To limit transitions between P-states, tweak «Minimum processor state» and «Maximum processor state» under «Processor power management» branch in the newly opened «Power Options» dialog window.
- To limit transitions between NB P-states, tweak «ATI Powerplay Settings» under «ATI Graphics Power Settings» branch in the same dialog window.
Just check, while running the stress test, where the asterisk is! If you want to test P1, the asterisk, should never go to P0, but while stopping the test, it can go to P2.
In case, the systems hangs during testing, you know the selected voltage was too low for that PState. Just simply hold the power button for a few second and your system restarts without the modified voltages.
After restart increase voltage a bit and start stressing the system again. I strongly suggest, not to use a voltage for later use, which is just one step away from, where it hung up. Please add about 25mV at least to have some margin.
Service
Recovery plan
You will need to follow these steps to disable the service in case your system stops to boot into Windows:
- In order to disable the service, you need to boot Windows in «Safe mode». While doing this, the BrazosTweaker service doesn’t get enabled.
- If Windows has booted succesfully in «Safe mode», you can click on the Windows-Start button and enter «Services» in the below line. Hit «Enter».
- Now you can see all installed services and should look for «BrazosTweaker service».
- The next thing is clicking right on the line from BrazosTweaker and select «Properties».
- On the «Geberal» tab change «Startup type» from «Automatic» to «Manual».
- Now you can restart your system.
- Once Windows has been restarted, start BrazosTweaker and try to find the rootcause of the hangs (too low voltage for a certain PState?, bug in the code, etc.).
- If the problem was found and fixed, you can re-enable the service by starting with 2. and switching back to «Automatic».
Enable service
After you found out stable configuration, stress-tested your system with custom voltage and clock settings, ensured everything runs smoothly, familarized yourself with the recovery plan, and only in that case, you can click on the «Service…» button. By setting that up, there will be a service in the background, which applies the adjusted voltages after coming out of sleep or while booting Win.
You just need to click «Update» to get the current settings, check the selection box «Make custom P-state settings permanent» and hit «Apply».
Now you are done.
Skip to content
AMD is getting back some of the swagger it had back in the early days of the Athlon 64, and that’s due in no small part to the success of its Fusion APUs. The low-cost processors power dozens of inexpensive laptops, and they offer an solid mix of value, performance, and battery life.
Better still, there’s a free, open source program that lets you take control over your Fusion APU. Want to sacrifice battery life for a boost in raw horsepower? Or maybe you need to squeeze out every last second of life your power pack has to offer? BrazosTweaker can help.
Just download and install the program on your AMD C-50 or E-350/450 powered laptop, and you’re good to go. Some users have reported drops in power consumption of up to 6 watts and temperature reductions of 12 degrees Celsius. And even when underclocking, BrazosTweaker users report that the APU can still handle Blu-Ray playback without missing a beat.
If you’ve got an AMD Llano APU in your system, check out the developer’s other offering — FusionTweaker.
via Netbook News
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0BrazosTweaker: AMD Brazos E350 tweaker
Που δημοσιεύθηκε με & κατατεθεί υπό Media PC Hardware. Τελευταία ενημέρωση .
As regular readers will know, my main HTPC is currently based on an AMD Brazos E350. I’d like to say a quick thanks to SemiAccurate for their recent article highlighting the excellent BrazosTweaker by Sven Wittek. This tool (and its sibling FusionTweaker) enable the tweaking of P‑States (the voltage in low power mode) of Brazos and Llano chips, just like K10Stat, PhenomMsrTweaker, RMClock, CrystalCPUID and others have done in the past. To quote SemiAccurate, “the main purpose of both these tools is to modify the voltages and clock dividers of the built-in P‑States on these chips.”
The FusionTweaker utility is still somewhat buggy by all reports, but BrazosTweaker seems reliable to me. I highly recommend reading theSemiAccurate article and then grabbing the tool if you have a Brazos HTPC, or laptop.
Куратор(ы):
Headman
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Member Статус: Не в сети |
Имеется неттоп на е-350 подключен по hdmi к плазме. Стоит вин 7 32-бит, каталист 11.9. Проблемы с воспроизведением рипов 1080p и даже с 720p. В vlc — периодическое распадание на квадраты некоторых участков изображения + милисекундные горизонтальные разрывы при быстрых движениях камеры, в mpc — разрывы и на некоторых рипах пропадает звук порой. По поводу звука и квадратов — проц и его видеокарта не справляются? Или проблема софтовая? А разрывы? Все заверяли, что он легко тянет full hd, но что-то у меня не особо справляется. |
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Партнер |
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D@nge1 |
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Member Статус: Не в сети |
у меня собран HTPC на E350 + 4Gb оперативки — стоит XBMC — все норм. Мощности этого проца в купе с интегрированной графикой — за глаза для FullHD!!! |
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Rabidus |
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Member Статус: Не в сети |
D@nge1 , нашел причину. Не работало аппаратное ускорение воспроизведения видео. Видео воспроизводилось только силами цп. Норм такой цп оказывается, почти справлялся в одиночку. |
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lansings |
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Member Статус: Не в сети |
У самого HTPC собран на е350m1, win7 32, 2gb+ XBMC 10.1 Очень долго мучался с проблемой, что при включении DXVA видео 1080p (без него комп не тянет 1080p), начинается замыливание изображения, причем в любых плеерах, что на жк 42″ очень хорошо видно. Так вот единственное решение которое нашел для действительно качественной картинки — в качестве кодека использовать только Cyberlink combo decoder. С ним и картинка без мыла, и загрузка проца не более 40% при рипах ~ 20gb. Вот ссылка на форум XBMC, где мне подробно разжевывали что и как сделать: http://xbmc.ru/forum/showthread.php?t=808&page |
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davden |
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Member Статус: Не в сети |
Имеется ноут MSI X-370 (E-350). Прошу выложить мануал софтового разгона процессора или ссылочку в личку. Гуглю, а найти не могу((( |
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SUKER |
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Member Статус: Не в сети |
Купил жене ноут с E-450 — чуть погонял ворлд оф танкс — стабильно 10 фпс Причем видно, что слабое звено именно проц, т.к. от подкручивания графики, картина меняется не сильно… Думаю, надо его разогнать Ноут спрятал до д.р. поэтому пока доступа к телу нет. Кто-ть пробовал amd OverDrive, его поддерживает? Нашел еще вот такую утилиту: http://code.google.com/p/brazostweaker/ П.с. вин7 х64 дал системе оценку 3.9 — такой результат у cpu. |
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asmodian1213 |
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Member Статус: Не в сети |
SUKER писал(а): Купил жене ноут с E-450 — чуть погонял ворлд оф танкс — стабильно 10 фпс Причем видно, что слабое звено именно проц, т.к. от подкручивания графики, картина меняется не сильно… Думаю, надо его разогнать Ноут спрятал до д.р. поэтому пока доступа к телу нет. Кто-ть пробовал amd OverDrive, его поддерживает? Нашел еще вот такую утилиту: http://code.google.com/p/brazostweaker/ П.с. вин7 х64 дал системе оценку 3.9 — такой результат у cpu. это камень изначально использовали только в нетбуках, сейчас ставят в ноуты начального уровня, разгон не поможет, для игр надо было брать llano или ноут с дискретной графикой |
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~Valera~ |
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Вопрос как и чем разогнать Е450? |
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fika82 |
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Да…, действительно бредовый процессор с такой видеокартой и в сравнении с 4гб оперативной памяти, если бы можно было немного разогнать, но к ноутбукам это кажется не применимо. #77 |
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Hedin |
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Member Статус: Не в сети |
Потсоны, купил на днях мамку asus e35m1-i deluxe со встроенным e-350 и полностью пассивным охлаждением, тока радиатор. рекомендую такого рода мамки для htpc, или подобных компов с ssd и безвентеляторным БП |
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KrAzY |
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Member Статус: Не в сети |
E-450 лучше E-350 тем что напряжение на чипсет/видео повышено, отсюда видео быстрее и поддерживаемые частоты памяти выше. (Но частота половинчатая, эти добавочные 50МГц, не нравится мне) Posted спустя 7 минут 7 секунд: |
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KrAzY |
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Member Статус: Не в сети |
KrAzY писал(а): Ещё на проц приходит напряжение 1,8В — для чего оно? PLL PCIe чего-то такое. В общем, если нужно играть на этом процессоре — то нужно организовать качественное охлаждение, допаять/перепаять конденсаторы в цепи питания, выставить в биос невысокую частоту видео, а главное в реестре выставить TextureOpt=3 и FlipQueueSize=1. Posted спустя 4 минуты 28 секунд: KrAzY писал(а): SUKER Спасибо за ссылку на прогу! Что-то она пытается сделать, пока не понял, меняется ли что-то реально, и меняется ли как надо У меня может понижать напряжение и множитель на проц. Повышать (реально, а не цифрами на экране) — нет. На КП — ничего не может. |
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Sylver Voyager |
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Member Статус: Не в сети |
Являюсь обладателем E-350 и в неттопе и в сервере. |
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solo24 |
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Member Статус: Не в сети |
У меня плата GA-E350N на ютубе когда смотрю клипы с 720р или 1080р начинает тормозить. А когда скачиваю и смотрю фаилом с системы все гладко и четко. Может есть способ решения данной проблемы. |
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Waramagedon |
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Member Статус: Не в сети |
solo24 Обновить драйвера видео, флеш плейер, кодеки. попробовать смотреть через другой браузер. |
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KrAzY |
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Member Статус: Не в сети |
Waramagedon Да, ты прав. |
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dxdizel |
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Member Статус: Не в сети |
Разгон процессора без поднятия напряжения почти не увеличивает его энергопотребление — была статья с тестами и замерами не помню правда на каком сайте. Естественно процессор там рассматривался не е350, но думаю результат буд6ет аналогичным |
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DeathMan2k4 |
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Member Статус: Не в сети |
Пробовал ли кто AMD OverDrive для разгона CPU E350 ну уж дюже слабоват проц на ноутбуке. торрент и то на 30-50% дает загрузку проца,а если еще и flash запущен то ваще мрак !? P.S. AMD OverDrive даже не увидела AMD процессор ! |
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user28101989 |
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Member Статус: Не в сети |
DeathMan2k4 не стоит, работало не корректно, но это было года 2 назад. |
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Кто сейчас на конференции |
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Сейчас этот форум просматривают: Victor91rus и гости: 29 |
| Вы не можете начинать темы Вы не можете отвечать на сообщения Вы не можете редактировать свои сообщения Вы не можете удалять свои сообщения Вы не можете добавлять вложения |
Introduction
Are you looking for a way to squeeze out every last bit of performance from your AMD Brazos motherboard platform? Do you want to enjoy a quieter, cooler, and longer-running system? Look no further than BrazosTweaker, a powerful tool designed specifically for undervolting and underclocking AMD Brazos platform APUs under Windows 7 (XP/Vista). In this article, we’ll delve into the world of BrazosTweaker and explore its features, benefits, and how to use it to unlock the full potential of your hardware.
What is BrazosTweaker?
BrazosTweaker is a software tool that allows you to tweak the AMD Brazos motherboard platform by changing the current voltage and clock speed of the built-in bridge chipsets. This means you can adjust the voltage and clock speed of your APU to achieve better performance, longer battery life, and lower processor temperatures. The tool supports a range of AMD Brazos platform APUs, including Zacate E-350, E-450, Ontario C-50, C-60, C-70, and E2-1800.
Benefits of Using BrazosTweaker
So, what can you expect from using BrazosTweaker? Here are some of the benefits you can enjoy:
- Quieter System: By reducing the voltage and clock speed of your APU, you can enjoy a quieter system with less frequent fan operation.
- Cooler System: BrazosTweaker can help you achieve lower processor temperatures, which can lead to a longer lifespan for your hardware.
- Longer Battery Life: By reducing power consumption, you can enjoy a longer battery life, making it perfect for laptops and mobile devices.
- Improved Hardware Lifetime: By running your system at a lower voltage and clock speed, you can extend the lifespan of your hardware, reducing the risk of overheating and other issues.
How to Use BrazosTweaker
Using BrazosTweaker is relatively straightforward. Here’s a step-by-step guide to get you started:
- Download and Install BrazosTweaker: Download the BrazosTweaker software from the official website and install it on your system.
- Launch BrazosTweaker: Launch the BrazosTweaker software and select the APU you want to tweak from the list of supported models.
- Adjust Voltage and Clock Speed: Use the sliders to adjust the voltage and clock speed of your APU to your desired settings.
- Save and Apply Changes: Save your changes and apply them to your system.
Tips and Precautions
Before using BrazosTweaker, here are some tips and precautions to keep in mind:
- Backup Your System: Before making any changes to your system, make sure to backup your data and settings.
- Monitor System Temperatures: Keep an eye on your system temperatures to ensure they don’t exceed safe limits.
- Avoid Overclocking: Be careful not to overclock your APU too much, as this can lead to overheating and other issues.
- Use at Your Own Risk: BrazosTweaker is a third-party software, and using it may void your warranty or cause other issues. Use at your own risk.
Conclusion
BrazosTweaker is a powerful tool that can help you unlock the full potential of your AMD Brazos platform APU. By adjusting the voltage and clock speed of your APU, you can enjoy a quieter, cooler, and longer-running system. With its user-friendly interface and range of supported APUs, BrazosTweaker is a must-have tool for anyone looking to squeeze out every last bit of performance from their hardware.
System Requirements
Before using BrazosTweaker, make sure your system meets the following requirements:
- Operating System: Windows 7 (XP/Vista)
- APU: Supported AMD Brazos platform APUs (Zacate E-350, E-450, Ontario C-50, C-60, C-70, E2-1800)
- CPU: AMD Brazos platform APU
- RAM: 2GB or more
- GPU: Integrated graphics or a dedicated graphics card
Troubleshooting
If you encounter any issues while using BrazosTweaker, here are some troubleshooting tips to help you resolve the problem:
- Check System Requirements: Ensure your system meets the minimum requirements for BrazosTweaker.
- Update Drivers: Make sure your drivers are up-to-date, especially the graphics drivers.
- Disable Overclocking: Disable overclocking in your BIOS settings to prevent any issues.
- Reinstall BrazosTweaker: Reinstall BrazosTweaker and try again.
Frequently Asked Questions
Here are some frequently asked questions about BrazosTweaker:
- Q: Is BrazosTweaker safe to use?
A: BrazosTweaker is a third-party software, and using it may void your warranty or cause other issues. Use at your own risk. - Q: Can I use BrazosTweaker on my laptop?
A: Yes, BrazosTweaker can be used on laptops, but be careful not to overheat your system. - Q: Can I use BrazosTweaker on my desktop?
A: Yes, BrazosTweaker can be used on desktops, but be careful not to overheat your system.
Conclusion
Introduction
BrazosTweaker is a powerful tool that can help you unlock the full potential of your AMD Brazos platform APU. However, with any new software, there may be questions and concerns. In this article, we’ll answer some of the most frequently asked questions about BrazosTweaker.
Q: What is BrazosTweaker?
A: BrazosTweaker is a software tool that allows you to tweak the AMD Brazos motherboard platform by changing the current voltage and clock speed of the built-in bridge chipsets.
Q: What are the benefits of using BrazosTweaker?
A: The benefits of using BrazosTweaker include a quieter system, a cooler system, longer battery life, and improved hardware lifetime.
Q: What APUs does BrazosTweaker support?
A: BrazosTweaker supports a range of AMD Brazos platform APUs, including Zacate E-350, E-450, Ontario C-50, C-60, C-70, and E2-1800.
Q: Is BrazosTweaker safe to use?
A: BrazosTweaker is a third-party software, and using it may void your warranty or cause other issues. Use at your own risk.
Q: Can I use BrazosTweaker on my laptop?
A: Yes, BrazosTweaker can be used on laptops, but be careful not to overheat your system.
Q: Can I use BrazosTweaker on my desktop?
A: Yes, BrazosTweaker can be used on desktops, but be careful not to overheat your system.
Q: How do I use BrazosTweaker?
A: To use BrazosTweaker, download and install the software, launch it, select the APU you want to tweak, adjust the voltage and clock speed, and save and apply the changes.
Q: What are the system requirements for BrazosTweaker?
A: The system requirements for BrazosTweaker include Windows 7 (XP/Vista), a supported AMD Brazos platform APU, 2GB or more of RAM, and integrated graphics or a dedicated graphics card.
Q: Can I overclock my APU using BrazosTweaker?
A: Yes, you can overclock your APU using BrazosTweaker, but be careful not to overheat your system.
Q: Can I undervolt my APU using BrazosTweaker?
A: Yes, you can undervolt your APU using BrazosTweaker, which can help improve your system’s power efficiency.
Q: Is BrazosTweaker compatible with other software?
A: BrazosTweaker is designed to work with other software, but it’s always a good idea to check compatibility before using it with other tools.
Q: Can I get support for BrazosTweaker?
A: Yes, you can get support for BrazosTweaker by visiting the official website or contacting the developers directly.
Q: Is BrazosTweaker free to use?
A: BrazosTweaker is free to use, but be aware that using third-party software may void your warranty or cause other issues.
Conclusion
In conclusion, BrazosTweaker is a powerful tool that can help you unlock the full potential of your AMD Brazos platform APU. By answering some of the most frequently asked questions about BrazosTweaker, we hope to have provided you with a better understanding of how to use this software and its benefits.
Troubleshooting
If you encounter any issues while using BrazosTweaker, here are some troubleshooting tips to help you resolve the problem:
- Check System Requirements: Ensure your system meets the minimum requirements for BrazosTweaker.
- Update Drivers: Make sure your drivers are up-to-date, especially the graphics drivers.
- Disable Overclocking: Disable overclocking in your BIOS settings to prevent any issues.
- Reinstall BrazosTweaker: Reinstall BrazosTweaker and try again.
Frequently Asked Questions (FAQs)
Here are some additional FAQs about BrazosTweaker:
- Q: What is the difference between BrazosTweaker and other APU tweaking tools?
A: BrazosTweaker is designed specifically for AMD Brazos platform APUs, making it a more targeted and effective tool for tweaking these systems. - Q: Can I use BrazosTweaker with other APU tweaking tools?
A: Yes, you can use BrazosTweaker with other APU tweaking tools, but be aware that using multiple tools may cause conflicts or issues. - Q: Is BrazosTweaker compatible with other operating systems?
A: BrazosTweaker is designed to work with Windows 7 (XP/Vista), but it may not be compatible with other operating systems.
Conclusion
In conclusion, BrazosTweaker is a powerful tool that can help you unlock the full potential of your AMD Brazos platform APU. By answering some of the most frequently asked questions about BrazosTweaker, we hope to have provided you with a better understanding of how to use this software and its benefits.