ATTENTION: G73/G74/53SW/SX Owners - CPU Throttling to 798mhz and how to fix it

[dkillone]

EDIT: This affects ALL G Series owners that have a sandybridge cpu(G73SW/G74SX/G53SW/G53SX), there is NO exceptions until Asus releases an update, not all games will cause cpu throttling, but so far I am comfirming more and more games that induce it.

EDIT 2: There is also a more permanent fix now as well, but its Unofficial and requires you to flash your bios. CLICK HERE to find out more,

I initially noticed this when I first got my G73SW-XA1 back in mid march, 2011. but didn't think anything of it until a poster had brought this up as some HP owners noticed that their Envy 17 SB is doing this to them. Edit: Which HP fixed their throttling problem on May 29th, 2011.

Problem is when running Prime95 the CPU stays turbo boosted at 2.3 to 2.6ghz. However, once Furmark is started at the same time, the CPU drops instantly to 798mhz. This now also can be noticed in GTA4,SC2,L4D2,WoW and anything that will put high loads on CPU + GPU at the same time. It does NOT just happen during synthetic test.


The FIX

So how to fix it? Well so far it seems running ThrottleStop in monitor only mode stops any, and all throttling. You do not have to mess with any settings, simply extract and run the exe for it to work. If you would like to have it run on bootup, simply create a shortcut, and drop it into your start-up folder. To have it auto-close, go into the ThrottleStop.ini and change "DCExitTime=0" to any number you like(basically just means number of seconds before it closes, I have mine set to 5.)

Throttlestop 4.00:
http://www.techinferno.com/downloads/?did=9


or for more detailed information about TS:
http://forum.notebookreview.com/hardware-components-aftermarket-upgrades/531329-throttlestop-guide.h...


There is no known downsides to using throttlestop, your CPU will still down-clock properly when not in use, and it does not run hotter, nor have I found any conflicts with battery draining faster.

Also, you do NOT have to worry about any overheating, even with throttling disabled I see no higher than a peak 81c on my CPU/GPU in a ambient room temp of 84-86f. So you really don't need to worry about that. However, the PSU does get hotter when throttling is disabled when there is significant load on CPU + GPU. So just watch for that, though it should be ok for the most part.

More Permanent Fix
This fix is 100% unofficial, and will require you to flash the BIOS. Which can be done with EasyFlash from within the BIOS menu. This is still done at your OWN RISK, so I am NOT responsible for any laptops not working after flashing.(However as a side note, flashing the bios is a fairly safe thing to do, especially when using the built in flasher Asus already provides.)
*Warning, this also might put more strain on your battery when running on battery only, But I've yet so see any difference during my test. Just beware of the possibility, I am in no way responsible for any damages done.


What this fix does is disable Bi Directional PROCHOT within the bios, so there will be no need to run Throttlestop on bootup anymore. I've been using this bios for quite some time, and I have had no problems, so the risk should be minimal. Also, as a bonus, this bios also enables AES(Learn More) that Asus so kindly forgot to implement into our original bios. The download link is below and the instructions for flashing will be below that.

Download: G53SW_AES_Throttle-Fix.zip
Download: G73SW_AES_Throttle-Fix.zip
Download: G74SX_AES_Throttle-Fix.zip (thanks to AbbyY)


Instructions:

Step 1: Download the file above, extract the 2 files onto a flash drive. Leave the flash drive plugged in.

Step 2: Reboot the computer, and press and hold F2 to get into the bios. Go to Advanced tab, then Start EASY FLASH.

Step 3: You should see the 2 extracted files once into easy flash. Using arrow keys, choose the one with _TFIX(_ORIG is for if you want to go back to default bios). Then hit enter and Yes to update. Let it do its thing, (it will shutdown, but just turn it back on after it shuts down).

Step 4: Once your back into windows, to test for success, download this MSR Tool and type in 0x1fc in the MSR Number box, then click Read MSR. Under the EAX box, you should see "0x0004005E", E being the key here that BD-PROCHOT is disabled(it will be F, it PROHOT is still enabled).

Step 5(optional): You can also test by running Prime95 + Furmark at the same time. Using RealTemp 3.67 to monitor cpu clocks. It should never fall below 1995mhz essentially, but for me, lowest I see it go is 22xxmhz.

--------------------------------------------------------------------------------------

Testing

If anyone else would like to test for themselves the programs to use for logging, stressing, etc are:

RealTemp 3.67(mainly to log to a txt file, but also it reads accurately the multi/cpu clocks of the CPU. Can be used for temperatures as well.)
http://majorgeeks.com/Real_Temp_d6098.html

PRIME95(good to get CPU to 100% load, but also checks for memory etc, very good for testing the computer stability)
http://majorgeeks.com/Prime95_d4363.html

Furmark 1.9.0(puts the graphic card at 99-100% load, again, just another good program to check for stability, of course, also just the programs I used to show consistent throttling.)
http://majorgeeks.com/FurMark_d4183.html


Also, if anyone gets some very interesting results, feel free to post in this thread, hopefully this will all lead to an official fix from Asus. We may have a temp fix for now, but always nice to hear official word and for an official update solving this problem. Thanks for reading!


Thread I created on NotebookReview Forums about it.
http://forum.notebookreview.com/asus-gaming-notebook-forum/576468-g73sw-cpu-throttling-prime95-furma...

Thread of this happening to HP Envy 17 owners.
http://forum.notebookreview.com/hp-envy-hdx/575817-hp-envy-17-sb-throttling-test.html

Confirmed Games that are affected by Throttling(click on the game to see throttling log of that game)

• Grand Theft Auto 4
  
• GRID
  
• StarCraft 2
  
• World of Warcraft
  
• Left 4 Dead 2
  
• Team Fortress 2
  
• Just Cause 2
  
• Skyrim (in 3D mode)
  
• Sonic Generations
  

Video of throttling in GTA IV




NOTES I've gathered so far:

• This is not a temperature problem, temps are perfectly well in range during test. However, Intel could be throttling for laptops that possibly would have high temperatures with both running.
  
• This is not strictly from caused by nvidia as the HP Envy uses an ATI GPU, so this is either motherboard or strictly the CPU.
  
• Using a higher watt PSU has no affect on throttling.
  
• This could be a power draw issue, or a premature temperature throttling.
  
• Using Throttlestop 3.00 stops the throttle, doesnt have to stay on, just be run once on boot.
  
• HP released a BIOS update fixing the throttling problem for Envy 16 gen2 owners on May 29th, 2011.
  
• Using realtemp 3.67 to log cpu during games has proven that throttling is happening outside of artificial test.
  
• GTA4 is the most affected by throttling, frames are around 10-25, but instantly jump to 30+, once throttlestop is opened.
  
• All G53/73SW models are affected by this throttling problem until Asus releases an update to fix it, most likely it will be a new bios.
  
• Ken Lee from GenTechPC has been great help, no one at Asus was really responding to me. I asked if Ken could talk to them, and now he is working with Asus to produce a fix. 😆
  
• This problem still persist on the new G74/53SX series
  
• As of 11-22-11, still no sign that Asus cares to release a bios update fixing this issue(not even for their new G series). So I don't see the point in hoping they will fix it anymore.
  
  

Since all the links are dead, here is my dropbox backup, should have all the files in this post. Choose the one you need.
Dropbox Backup

[Kanigit]

ColonelS wrote:
Did you try restarting the intel app?

Yup, three times. Same results.

[ColonelS]

Bojamijams wrote:
So do we have to run Furmark while running this app? Also is there some reason that we have to use this app instead of CPU-Z?

I'm trying to check other then CPU-Z, which app will monitor the throttling of cpu

[unclewebb]

CPU-Z is designed for consistent MHz validation purposes and the Intel utility is useless as a utility to accurately monitor CPU throttling.

ThrottleStop uses high performance timers within the CPU that were specifically designed by Intel for extremely accurate multiplier monitoring on each thread of any Core 2 or Core i CPU built since July 2006. This monitoring method is fully explained in the November 2008 Intel Turbo White Paper.

Intel® Turbo Boost Technology in Intel® Core™ Microarchitecture (Nehalem) Based Processors
http://download.intel.com/design/processor/applnots/320354.pdf

Does Asus Engineering not have access to a tool that uses these timers to show them this problem?

RealTemp 3.70 also follows the Intel recommended monitoring method. You can trust RealTemp and ThrottleStop to show you the slightest hint of throttling and what speed your CPU is really running at.

http://www.techpowerup.com/downloads/2089/Real_Temp_3.70.html

[ColonelS]

Woot! unclewebb i just forwarded the entire reply to the R&D team haha.

fingers crossed for now *mm*

[Vaneriuz]

ColonelS wrote:
Woot! unclewebb i just forwarded the entire reply to the R&D team haha.

fingers crossed for now *mm*

Something is very odd about all of this. . .
I just bought a G53SX, and i ofc have this issue as well. I find it VERY, like VERY VERY, hard to believe that the Asus engineering crew don't already have tools for this. Also, ofc they have known about this for a long time (how couldn't they have?). It just saddens me that Asus apparently doesn't care enough to take care of this right away 😞

I always liked Asus, and i love my G53 (gimped gpu or not). For ****s sake Asus, take care of this already. Good support is what matters in the long run, the opposite have a way of spreading the word quicker than one might imagine.

//Mike from Sweden (we have WAY too much snow here at the moment. . . Sigh.......)

[Proz]

So... let's try typing this up again since clearly this website has issues...

So I have a similar problem to you guys, although I have an Asus N53SV notebook rather than one of the ROG ones.

My issue is only on battery though. When plugged in everything works fine, frame rates are consistent. When I'm on battery I get bad throttling though. At first I noticed that all of my speeds on CPU and GPU would drop for about 5 seconds after about every 30 seconds or so. I tried using throttlestop and that fixed the CPU throttle issue, but I still have GPU throttling while on battery (I'm monitoring with GPU-z and CPU-z).

I've been messing with this since I got this notebook trying to fix, but nothing has worked. I've tried different drivers, settings, etc with no luck.

Looking through forums this has been an issue for some time. Asus has done absolutely nothing about it. I tried calling Asus and the best advice their "tech support" could offer is to try switching to high performance battery profile... Oh, and he tried telling me to download SLI, since that would clearly help...

Hopefully, this forum can offer some advice on fixing this. If I don't get it fixed within the next couple of days I'll definitely be returning this and staying away from Asus notebooks in the future.

[Vaneriuz]

ColonelS wrote:
Woot! unclewebb i just forwarded the entire reply to the R&D team haha.

fingers crossed for now *mm*

Well, i've decided to send mine back, and going for an MSI GT780DX instead.

I mean, first the throttling issue (temporarily solved with throttlestop..), then the worthless WiFi card (temporarily solved with running in b/g, halving my speed, got 100/100 at home), plus the gimped card in my G53SX (i missed beforehand that the 53SX had the gimped gpu, why Asus?!? Sigh..). It's a shame though, since i love the design and general feel of the G53 and G74, plus the cooling is awesome ofc. But i just can't forgive and forget all those faults, i mean why should i really? 😞

[Bojamijams]

Thanks Colonel. Keep us posted.

[unclewebb]

High performance gaming laptops are not designed so that you can run the CPU and GPU at full speed while on battery power. Manufacturers need to be more upfront about this limitation.

Battery technology has not kept up with CPU and GPU technology. Batteries are not capable of supplying enough power to a laptop when gaming. If you decide to try and disable throttling while on battery power, you can shorten the life of your battery significantly. Gimped on battery is understandable but gimped when plugged in is not.

Vaneriuz: This issue has been around for a long time and it continues with the G74 series.

http://rog.asus.com/forum/showthread.php?9052-Does-BIOS-202-fix-Throttling-Issues-(G74)&

[Proz]

unclewebb wrote:
High performance gaming laptops are not designed so that you can run the CPU and GPU at full speed while on battery power. Manufacturers need to be more upfront about this limitation.

Battery technology has not kept up with CPU and GPU technology. Batteries are not capable of supplying enough power to a laptop when gaming. If you decide to try and disable throttling while on battery power, you can shorten the life of your battery significantly. Gimped on battery is understandable but gimped when plugged in is not.

Vaneriuz: This issue has been around for a long time and it continues with the G74 series.

A buddy of mine has a lenovo notebook with i7 and gt555m and he plays games just fine on battery with no issues. Isn't that the whole point of "mobile" gaming? If you can't play games on them on battery you might as well just get a desktop with better performance for half the price.