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View Full Version : G73Jh - CPU performance/TurboBoost "stuck", slow down, shutdown hang, excessive fan



ivanjh
02-10-2012, 09:57 AM
TL;DR - Fixed by RMA to replace mainboard

I've had a G73Jh for about 18 months - used for a number per day. It's been flawless.

A couple of weeks ago, it's performance suddenly dropped, and it would freeze on shutdown & restarts (from Windows/Linux & from the BIOS), it would also hibernate a few minutes after booting
Running HWiNFO64 (System Summary) showed all 4 cores stuck at 7x ratio (~921Mhz), even under heavy load.
But HWiNFO64 (Sensor Status) also showed the core temps to be acceptable @ 40-50C and GPU Temps @ 50-60C.
A bit of digging revealed other users with similar slow down/hanging issues.
One work-around was the running of ThrottleStop. Strangely, just starting ThrottleStop (in default monitoring config, not "ON") appears to fix the speed problem (you can then exit it), and Core ratios will then run up to 21x under load.
I setup ThrottleStop to run at startup, and exit 5 seconds later.

The machine still hung on shutdowns & restarts, and the fan seemed higher than normal (I didn't have previous measurements). But I could get work done.
One follow up entry said that it was a main board problem, fixed after RMA. Another pointed out a THRM temperature of 102C in CPUID's HWMonitor.

I ran up HWMonitor and found I have the same issue - "ASUSTeK Computer Inc. G73Jh"'s THRM reports an unchanging 102C, whilst the DISK/CPU/GPU report around 30/40/50C (This THRM temp wasn't shown in HWiNFO64). This 102C doesn't change all day, and is set on 102C from the moment I boot up.
I'm wondering if it's a faulty sensor, and one that's somehow communicating with the CPU - causing the CPU to throttle back.

Running ThrottleStop 4.00 and enabling "Options" > "Unlock Bidirectional PROCHOT" meant that I could toggle "BD PROCHOT" on and off.
Enabling "BD PROCHOT" caused the performance problem (locked ratios to 7x), and disabling it restored performance to an expected level (ratios following activity, jumping from 7x to 21x).

In my mind, I have a faulty temp sensor - the one providing the ACPI THRM reading, and it's connected to the "BD PROCHOT" which is slowing the machine down. My initial use of ThrottleStop was somehow just disabling this link, but wasn't resolving other issues it may cause (Is it possible that when "shutdown", the machine would sit idle to spin the fans to cool down the machine until a safe turn-off temperature?).

I think everything points to needing a mainboard hardware RMA... comments?

(I've replicated these problems with a fresh Windows install on a brand new drive)

BIOS: 213, vBIOS: 012.020.000.032.038352, Momentus drives: SD28

dstrakele
02-10-2012, 06:45 PM
Some G73 systems appear to have a power management issue that may be related to the Intel Series 5 Chipset. Perhaps you've already seen these threads:

http://rog.asus.com/forum/showthread.php?6251-G73-Reboot-Freeze-BSOD-Issues&p=52191&viewfull=1#post52191

http://rog.asus.com/forum/showthread.php?8943-G73-Freezing-Crashing-Issue-WORKAROUND-FOUND
http://rog.asus.com/forum/showthread.php?7499-Asus-g74sx-3D-Freezing-OS
http://forum.notebookreview.com/asus-gaming-notebook-forum/571888-g73jw-freezes-when-not-use.html

It may be worthwhile for you to PM @nuke235 to get the latest on this issue.

Does your battery report a high wear level? If so, check out http://forum.notebookreview.com/asus-gaming-notebook-forum/586249-g73jh-battery-problem.html. Your report of the laptop going into hibernation for a few minutes made me wonder if your battery monitor could use some recalibration.

kb0sdq
02-10-2012, 10:31 PM
I need to ask. The throttlestop app is for the SandyBridge processor right? I have the Clarkfield so this should not affect me right?
Thanks,
Doug

dstrakele
02-10-2012, 10:39 PM
ThrottleStop is an Intel Core 2 and Core i performance monitoring and modification tool. What issue(s) are you experiencing?

kb0sdq
02-11-2012, 03:34 AM
None I was reading this thread i remember there is an issue with the g74 requiring throttlestop but I did not think the g73 was included.maybe I am reading it wrong.
no worries Happy ROG_n
Doug

ivanjh
02-11-2012, 08:16 AM
Does your battery report a high wear level? If so, check out http://forum.notebookreview.com/asus-gaming-notebook-forum/586249-g73jh-battery-problem.html. Your report of the laptop going into hibernation for a few minutes made me wonder if your battery monitor could use some recalibration.
It's very rarely been on battery. Battery wear is reporting 10%.

ijat
04-04-2012, 03:45 AM
helo mr ivanjh , did you fix the acpi problem ?

ivanjh
04-04-2012, 04:00 AM
It was sent in for RMA (in Australia) and returned 10 business days later with the main board replaced.

The ACPI THRM no longer reads an unchanging 102C, but instead varies with reasonable temps (40-60?).
CPU performance returned. Cores automatically adjust multipliers for required load.
Fans run quieter.
Shutdown, reboot and sleep without problem.


The mainboard replacement definitely fixed all my issues (at least for the time being).
I'm convinced it was a faulty sensor (and/or related circuitry) - and the machine trying to preserve itself.
It's not a unique case (I found a few vague references to "G73 ACPI THRM 102C" on the interwebs).
The RMA experience was not awful - I will happily purchase another ASUS laptop.