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edjanx
09-16-2014, 12:11 AM
Hello all. I have a G750JW purchased at Best Buy back in March. On day one, I put a fresh ASUS Windows 8.1 image on the machine with the most current drivers listed on the ASUS G750JW support site.

I purchased PlayOn/PlayLater, which is an application that allows you to record HD Video to your PC over the internet, much like a DVR. Whenever I tried to download an HD video, it would fail, so I opened a support ticket with PlayLater. They informed me that my CPU's all were maxed out at 100% according to their diagnostic upload, even though Windows Task Manager showed the CPU in the 30's.

I downloaded Core Temp to see if I could validate their claims, and I also saw the CPU pegged at 100% at only a 798.15 frequency, when I should have 2400 available. The Core Temps never hit 40C, so that doesn't seem to be an issue. I have logs that demonstrate this behavior if required.

After 10 minutes of an online chat, ASUS support is telling me that "a refresh may be our only other option to have the operating system in proper order", so I told them that I wanted to send it in for repair. I personally believe that was a lazy, level 1 support answer, so does anyone have any suggestion before I ship my baby off for several weeks of lost productivity?

Thanks for your assistance in advance!!

Nate152
09-16-2014, 12:41 AM
Hello edjanx

At 100% load your cpu should be ramping up to 2400MHz. I am not a laptop guy but you can check 2 things to see if it helps.

1) Check if turbo is enabled in the bios if you have this option.
2) Real temp has a disable turbo option in the settings, I'm not sure if core temp does but it might. Open up core temp, click settings and make sure Disable Turbo is UNchecked.

edjanx
09-16-2014, 01:20 AM
Hi Nate. Thanks for offering your suggestions. I do not have any Turbo option in my bios, and Core Temp has no such setting. However, I just downloaded Real Temp and performing a test with that now. I see the same results as core temp

Nate152
09-16-2014, 01:29 AM
Hmmm, something is definitely keeping your cpu from ramping up.

Let's see what we can find on this.

Nate152
09-16-2014, 01:32 AM
One suggestion I found that fixed this was doing a system restore.

Have a read through this.

http://rog.asus.com/forum/archive/index.php/t-35062.html

hmscott
09-16-2014, 04:51 AM
Hello all. I have a G750JW purchased at Best Buy back in March. On day one, I put a fresh ASUS Windows 8.1 image on the machine with the most current drivers listed on the ASUS G750JW support site.

I purchased PlayOn/PlayLater, which is an application that allows you to record HD Video to your PC over the internet, much like a DVR. Whenever I tried to download an HD video, it would fail, so I opened a support ticket with PlayLater. They informed me that my CPU's all were maxed out at 100% according to their diagnostic upload, even though Windows Task Manager showed the CPU in the 30's.

I downloaded Core Temp to see if I could validate their claims, and I also saw the CPU pegged at 100% at only a 798.15 frequency, when I should have 2400 available. The Core Temps never hit 40C, so that doesn't seem to be an issue. I have logs that demonstrate this behavior if required.

After 10 minutes of an online chat, ASUS support is telling me that "a refresh may be our only other option to have the operating system in proper order", so I told them that I wanted to send it in for repair. I personally believe that was a lazy, level 1 support answer, so does anyone have any suggestion before I ship my baby off for several weeks of lost productivity?

Thanks for your assistance in advance!!

edjanx, check your Power Options control panel, look at the Advanced settings for your current Power Plan selected. I would start by choosing the High Performance plan and verify that the CPU Min/Max settings are 100%/100%:

41121

41122

If you installed Asus Power4Gear, uninstall it. It forces low power mode when you switch to battery, and can leave it there when you return to AC power, and that forces the CPU down to 799mhz all the time.

I usually run with the Balanced Power plan, CPU set to 0%/100%, that reduces the CPU speed during idle times, but ramps up to 100% as needed. Generates less heat, which requires less cooling, and reduces the time the fan runs.

Let us know if that works for you :)

edjanx
09-16-2014, 11:24 AM
Thanks HMSCOTT, I tried what you suggested per the screenshot to no avail. :( 41147

Nate, reading up on the system restore link now. Thank you!

hmscott
09-16-2014, 12:00 PM
Thanks HMSCOTT, I tried what you suggested per the screenshot to no avail. :( 41147

Nate, reading up on the system restore link now. Thank you!

edjanx, are you doing this on battery power or on AC power... after a long debugging thread involving many people for Musicmatters in the thread that Nate gave you it turned out Musicmatters only had the problem on Battery power, on AC he ran at full speed.

Are you seeing the same speed throttling on AC and Battery, or just on Battery?

"Hi Albert!

I can confirm that the CPU in my G750 works normally on AC power, but drops down to .77Ghz on battery power and stays stuck there regardless of the ASUS or Windows 8 power management settings." - Musicmatters

Don't spend time doing an OS reset yet, you will loose all your configuration and need to do all the Windows updates again.

On battery the early G750's automatically throttled to 799mhz on battery. What BIOS version do you have loaded on your JW?

Use CPU-Z, motherboard tab, to get the BIOS version installed.

http://www.cpuid.com/softwares/cpu-z.html

BIOS 208 is the newest for the JW, install it if you have an earlier version.

http://support.asus.com/download.aspx?SLanguage=en&p=3&m=G750JW&hashedid=w5ZFxIpLeKBoVabd

41157

BTW, you didn't answer if you have Asus Power4Gear installed... uninstall it if you do have it.

Please let us know what you do and how it works :)

edjanx
09-16-2014, 04:42 PM
edjanx, are you doing this on battery power or on AC power... after a long debugging thread involving many people for Musicmatters in the thread that Nate gave you it turned out Musicmatters only had the problem on Battery power, on AC he ran at full speed.
Are you seeing the same speed throttling on AC and Battery, or just on Battery?


I was seeing this on both battery and plugged in. I did read this excellent thread, and decided to try ThrottleStop. Running this with 'BD PROCHET' unchecked, I'm at 3200+ MHz while plugged in. On battery, it drops back to 798MHz



Don't spend time doing an OS reset yet, you will loose all your configuration and need to do all the Windows updates again.

On battery the early G750's automatically throttled to 799mhz on battery. What BIOS version do you have loaded on your JW?

BIOS 208 is the newest for the JW, install it if you have an earlier version.



My BIOS is actually version 209, which is what it apparently came installed with. I do see other threads about this BIOS on this board, but it is not available as an option from the official download page.



BTW, you didn't answer if you have Asus Power4Gear installed... uninstall it if you do have it.
Please let us know what you do and how it works :)

Yes, I did uninstall Power4Geear per the original suggestion. :-)

So I am torn, as my system does not work correctly without ThrottleStop.

hmscott
09-16-2014, 05:08 PM
djanx, try Set / Restore Defaults in Bios. If that doesn't work, try power reset, remove battery and ac power, then hold down power button for 30 seconds.

If those don't work, in device manager, Uninstal devices under battery(ies), and reboot.

Downgrading BIOS to 208 would be next, but the 209 BIOS doesn't seem to be downloadable so check with Asus first. :-)

edjanx
09-16-2014, 09:14 PM
edjanx, try Set / Restore Defaults in Bios. If that doesn't work, try power reset, remove battery and ac power, then hold down power button for 30 seconds. If those don't work, in device manager, Uninstall devices under battery(ies), and reboot.

Thanks again. None of these options work, but in trying the power reset option, I noticed that the frequency was running at 3200 without the battery when plugged in. When I put the battery back in, it dropped to 798MHz. Took the battery back out, and it jumps back to 3200MHz



Downgrading BIOS to 208 would be next, but the 209 BIOS doesn't seem to be downloadable so check with Asus first. :-)

I found a link here about bios 209: http://rog.asus.com/forum/showthread.php?42746-New-BIOS-209-for-the-G750JX

However, it says this is for the JX, and I have a JW. I can't find anything else about a 209 BIOS on a JW. Should I try the downgrade?

This is the direct download to the 209 G750JX: http://dlcdnet.asus.com/pub/ASUS/nb/G750JX/G750JXAS209.zip

hmscott
09-16-2014, 09:28 PM
Thanks again. None of these options work, but in trying the power reset option, I noticed that the frequency was running at 3200 without the battery when plugged in. When I put the battery back in, it dropped to 798MHz. Took the battery back out, and it jumps back to 3200MHz

I found a link here about bios 209: http://rog.asus.com/forum/showthread.php?42746-New-BIOS-209-for-the-G750JX

However, it says this is for the JX, and I have a JW. I can't find anything else about a 209 BIOS on a JW. Should I try the downgrade?

This is the direct download to the 209 G750JX: http://dlcdnet.asus.com/pub/ASUS/nb/G750JX/G750JXAS209.zip

edjanx, the BIOS isn't interchangeable between models, so no the JX 209 BIOS shouldn't work.

That is why I suggested contacting Asus, and ask them how to re-download the 209 JW BIOS should you need to downgrade/reapply the 209 BIOS.

That is interesting about running on AC power alone without the battery installed "solving" the problem

I think you have enough debugging now to report those results to Asus and ask them how to proceed, and how the get the JW 209 BIOS downloaded for potential re-installation.

Unless you are in a hurry, then use the command line winflash /nodate to downgrade - it schedules the BIOS update to occur at boot time. But, I would wait for a response from Asus before doing this...

At least you can run without the Battery on AC for now :)

File a Technical Inquiry with Asus here:

https://vip.asus.com <== create a login, register your laptop, and file the Technical Inquiry.

Let us know what Asus says, and how it works out :)

edjanx
09-17-2014, 01:49 AM
Let us know what Asus says, and how it works out :)

Thanks hmscott. I already filed a technical inquiry yesterday and am awaiting a response. I appreciate the help to think through this in advance so I have all the info I need to make the inquiry. I will certainly follow up with the outcome.

I also find it interesting that running on AC power alone without the battery installed "solves" the problem, but at lease for now, I have ThrottleStop to keep the PC working properly. I just tested to see if I'd overheat the system with ThrottleStop by allowing my daughter to go nuts on Minecraft for over a half hour while I logged with Core Temp.

She noticed how 'smooth' it was, and the average core temp stayed below 59C, the average Core load just a tad over 20%, and at 3192.62 MHz core speed - 4X faster than the 798.15 MHz bottleneck. Same thing using PlayLater, which was the app that ran at 100%. No problem recording HD anymore, with a low avg CPU in the teens and at safe temperatures. At least their support staff was happy that it wasn't their software and that they identified an issue for my laptop while it is still under warranty. I can't help to think of how many people out there with 750's who have similar issues without ever realizing it. :mad:

Anyway, thanks again!

unclewebb
09-17-2014, 03:09 AM
BD PROCHOT stands for bi-directional processor hot. This is a signal path to the CPU. it allows other devices on your motherboard or your power adapter or in this case your battery, to send a signal to the CPU. This signal forces the CPU down to the minimum multiplier which is 8 so your CPU will be left running at just under 800 MHz whether it is idle or at full load. The CPU responds just as if it was overheating even though the CPU is not overheating at all. This is a common problem on a wide variety of laptops. When a sensor goes bad, your CPU will be left running at its lowest possible speed indefinitely. Using ThrottleStop to disable BD PROCHOT, blocks these signals so your CPU can run at its full rated speed.

Disabling BD PROCHOT does not interfere with your CPU. If your CPU gets too hot, it will throttle so it is still protected whether BD PROCHOT is enabled or disabled. Disabling BD PROCHOT simply blocks outside sources from throttling your CPU.

Your trouble shooting seems to show that it is either the battery or a sensor on the motherboard that is causing this.

When properly setup, you should also be able to use ThrottleStop to run your CPU at full speed when on battery power. Post a screenshot of how you have ThrottleStop set up when on battery power if you need some help.

ThrottleStop 7.00
https://www.sendspace.com/file/oquhg3

BTW, why are you using Core Temp for temperature monitoring and logging? ThrottleStop does logging and can be setup to sample the CPU multiple times per second if needed. It operates at a higher Windows priority so it is always first in line when sampling your sensors. It also includes GPU monitoring in the same log if you turn that feature on. The accuracy of the data in the ThrottleStop log file is second to none.

hmscott
09-17-2014, 05:14 AM
Thanks hmscott. I already filed a technical inquiry yesterday and am awaiting a response. I appreciate the help to think through this in advance so I have all the info I need to make the inquiry. I will certainly follow up with the outcome.

I also find it interesting that running on AC power alone without the battery installed "solves" the problem, but at lease for now, I have ThrottleStop to keep the PC working properly. I just tested to see if I'd overheat the system with ThrottleStop by allowing my daughter to go nuts on Minecraft for over a half hour while I logged with Core Temp.

She noticed how 'smooth' it was, and the average core temp stayed below 59C, the average Core load just a tad over 20%, and at 3192.62 MHz core speed - 4X faster than the 798.15 MHz bottleneck. Same thing using PlayLater, which was the app that ran at 100%. No problem recording HD anymore, with a low avg CPU in the teens and at safe temperatures. At least their support staff was happy that it wasn't their software and that they identified an issue for my laptop while it is still under warranty. I can't help to think of how many people out there with 750's who have similar issues without ever realizing it. :mad:

Anyway, thanks again!

edjanx, yes the G750JW is an awesome laptop, and when running at speed cuts through most anything smoothly :)

Occasionally we have someone come through that hasn't updated the BIOS, or is running on battery with P4G wondering why the speed is locked at 799mhz, but one or more of the tips I gave you are the solutions we have found work and their problem is solved.

Battery issues are usually a not charging or odd low % charge level showing persistently, and if the power reset or device uninstall solutions don't work, then a laptop charging problem is either the battery, AC Power Adapter, or motherboard component issue solved with RMA.

The only other thing we haven't tried besides reloading the OS to the out of the box config, is to make sure you are up to date on all Microsoft patches upgraded to Windows 8.1, and have updated all your drivers to the latest Windows 8.1 release. Have you done that?

Here is the list of places I look for updates for my G750JH; the best way to get a stable fully functioning G750/G751 is to update all the drivers / apps to the latest Windows 8.1 release.

The G750JW/JX/JH/JM/JS/JZ download areas haven't had new updates for a while, BIOS updates still happen in your model's support area, so check there from time to time.

The G750/G751/551/500/etc share the same basic hardware components; check support download areas for new hardware for newer drivers.

Asus maintains central support areas for hardware component features common to all products, those areas usually have the latest drivers after new hardware releases, sometimes there is a lag before the newer drivers show up there, so still to new product releases support downloads for the latest drivers.

Asus G751 Support / Download areas - Asus hasn't updated all the versions of these support areas, this link discusses the 3 locations were started independantly and not sync'd/updated through to the latest driver releases - check them all to be sure.
http://rog.asus.com/forum/showthread.php?55572-Asus-G751-Support-Download-areas&p=461698&viewfull=1#post461698

This G751JM/JT/JY/JL download area has the latest drivers of all the G750/G751 support download areas:

G751 Support / Download Areas - Newest - has all 4 G751 models
http://www.asus.com/Search/?SearchKey=g751

G750 Support / Download Areas - Newest - has the G750JY/JZ/JS/JM/JH models
http://www.asus.com/Search/?SearchKey=g750

G750JX - new support location, updates?
http://www.asus.com/Notebooks_Ultrabooks/ASUS_ROG_G750JX/

G750JW - new support location, updates?
http://www.asus.com/Notebooks_Ultrabooks/ASUS_ROG_G750JW/

Here are the latest Asus posted VGA drivers currently 347.25 ; it's better to get the latest from Nvidia - 347.88

Asus doesn't modify the drivers, they release the identical driver packages as Nvidia releases.
http://support.asus.com/Download.aspx?SLanguage=en&m=VGA&p=3&s=111

Notebook Audio drivers - Realtek 7443 - current confirmed to work on G751/G750, some G750 users say 7335 works best for them, if you find a newer release version that works, please let us all know which version and G750/G751 model it works on.
http://support.asus.com/Download.aspx?SLanguage=en&m=Audio&os=30

Notebook Card Reader (realtek) G750 / G751(?)
http://support.asus.com/Download.aspx?SLanguage=en&m=Card+reader&os=30

Notebook Bluetooth drivers
http://support.asus.com/Download.aspx?SLanguage=en&m=Bluetooth&p=3&ft=27&os=30

Notebook WLAN drivers (no Intel)
http://support.asus.com/Download.aspx?SLanguage=en&m=WLAN&os=3

Notebook LAN drivers
http://support.asus.com/download.aspx?SLanguage=en&p=3&s=589&m=LAN&os=&hashedid=n%2fa

KBFilter driver
http://support.asus.com/download.aspx?SLanguage=en&p=3&m=KBFilter&hashedid=n%2fa

Asus Backtracker for Windows 8.1 download
http://support.asus.com/download.aspx?SLanguage=en&p=3&m=Backtracker&hashedid=n%2fa

Asus Backtracker FAQ
http://www.asus.com/support/FAQ/1008640/

Asus SmartGesture
http://support.asus.com/download.aspx?SLanguage=en&p=3&m=ASUS+Smart+Gesture&hashedid=n%2fa

Asus Touchpad
http://support.asus.com/Download.aspx?SLanguage=en&m=Touchpad&os=30

Asus ATK Package
http://support.asus.com/download.aspx?SLanguage=en&p=3&m=ATK%20Package&hashedid=n/a

Asus GPU Tweak for Graphics Cards, currently at release 2.7.9.0 for the G750JW/JX/JH and G751JT/JY
http://support.asus.com/download.aspx?SLanguage=en&p=9&m=ASUS%20GPU%20Tweak%20for%20Graphics%20cards&hashedid=n/a

Asus GPU Tweak for Laptops, currently at release v1.0.9 for the G750JS/JM/JZ and other new ROG laptops with Optimus
http://support.asus.com/download.aspx?SLanguage=en&p=3&m=ASUS+GPU+Tweak+for+Laptops&hashedid=n%2fa

Here are the Asus posted VGA drivers, it's better to get the latest from Nvidia - currently 347.88
http://support.asus.com/Download.aspx?SLanguage=en&m=VGA&p=3&s=111

Nvidia Drivers direct from Nvidia
http://www.geforce.com/drivers

Asus stopped updating their Intel INFUpdate support area, so go directly to Intel to get the latest chipset INF - currently 10.0.26
https://downloadcenter.intel.com/download/20775/Intel-Chipset-Device-Software-INF-Update-Utility-

For the G750JH/JZ RAID and G751JY PCIE SSD, or if you have implemented RAID, the latest SetupRST.exe is currently 13.6.0.1002
https://downloadcenter.intel.com/SearchResult.aspx?lang=eng&keyword=Intel+Rapid+Storage+Technology+%28Intel+RS T%29+RAID+Driver

You can get the list of what drivers you need by looking at the installed programs listed through the Programs and Features Control panel. Compare those named in that list, along with the version number showing, against what is available in the above list. It takes a little time, but after you are all up to date and stable with all function you can check every few months for a new set of updates.

Another thing important to mention, is to remind you to make an Asus Backtracker created Flash Recovery drive, it is a bootable backup of the Recovery partition that lets you install a complete out of the box Windows 8.0 config on a new SSD/HD, or your existing drive. The only recovery source you get with the G750 is that recovery partition and a Recovery Flash drive you create - if you loose both you have to RMA to Asus to have them reload the OS or load Windows from Microsoft Media from scratch - which is a time consuming PIA, so heads up.

Good luck!

hmscott
09-17-2014, 05:21 AM
unclewebb, thank you for posting your updated Throttlestop 7.00b3 app download! :)

At idle, while running Windows High Performance Power Plan, with XTU tuned core multi's, here is what ThrottleStop/Task Manger CPU look like at default:

41210

41212

unclewebb
09-17-2014, 03:57 PM
hmscott - I am pretty sure that it is not a bad driver or bios issue. It is a bad sensor that is forcing edjanx's laptop down to 798 MHz.

It looks like your bios has disabled some or all of your package C States. Some manufacturers do this to increase stability but disabling the package C States increases power consumption which is not what most buyers want in a laptop. Some laptops will automatically start using some of the deeper C States as soon as you switch to battery power. Here's an example of my 4700MQ when on AC power.

41238

hmscott
09-17-2014, 04:13 PM
hmscott - I am pretty sure that it is not a bad driver or bios issue. It is a bad sensor that is forcing edjanx's laptop down to 798 MHz.

It looks like your bios has disabled some or all of your package C States. Some manufacturers do this to increase stability but disabling the package C States increases power consumption which is not what most buyers want in a laptop. Some laptops will automatically start using some of the deeper C States as soon as you switch to battery power. Here's an example of my 4700MQ when on AC power.

41238

unclewebb, it's probably in the engineers DNA now, from all the performance tuning, reducing the state changes to increase stability. I don't mind as I run cool even at max multipliers with 100% load for long runs, little chance for idle states, I am almost always plugged in.

It could be fun if Asus put in the ROG type BIOS from their motherboards into their laptops, then we could choose the aggressiveness of the tuning :)