NitroX wrote:
Well, I actually got 90+C on CPU in AC Unity one year ago n my G751JY. So I'm not surprised to hear the same thing for Syndicate. The problem is that the game is quite resource hungry and it keeps both CPU and GPU at a very high usage percentage. Therefore, the heat continues to accumulate inside the case and the temps tend to get quite high. There have been several threads on the forums about how to lower down CPU temps.

I recommend this order:

1) Use V-Sync/G-Sync in games to limit FPS to maximum monitor refresh rate (60Hz = 60FPS for example)
2) Go for an Undervolt using Intel XTU or Throttlestop (a -70/-70mv should be safe enough but it still depends on your CPU's capabilities).
3) Use NBFC to take over the control of your CPU fan. The default CPU fan is quite lazy so increasing the RPM of the fan will lower down temps considerably due to increased air flow inside the case. More info here: https://rog.asus.com/forum/showthread.php?58501-Making-of-quot-Official-NotebookFanControl-G751JY-Pr...
4) Lower down CPU clocks while gaming. You can use either Intel XTU or Throttlestop to do this. I personally use Throttlestop cause I have more profiles: one with maximum performance (for high demanding games where temps are quite normal), one light gaming profile (for games like AC where the CPU usage doesn't go to 80-100% so I can use lower clocks like 3200Mhz or 3300Mhz in order to lower temps while gaming), one profile for office and internet browsing and another one for battery.
5) Use CPU Affinity to disable hyperthreading for certain games that don't make use of HT. More info here: http://rog.asus.com/forum/showthread.php?53249-PSA-G751-203-BIOS-limits-max-turbo-boost-from-35x-to-... . But tbh, this is quite a pain in the ... because you have to set the affinity each time you launch the app.

NitroX wrote:
Well, lowering the clocks down will surely make things better. But I'm still shocked that your CPU went all way up to 90+ C even with NBFC . You should make sure that the NBFC service is still working cause sometimes it just stops and it needs a reinstall. Also, I recommend spending some time with tweaking the undervolt. It is one of the best solutions cause it reduces temps without affecting performance.


Okay, now other things that might influence are:

1) Use Balanced profile while gaming . This way, the CPU has time to cool down a bit between loads. High performance profile is mostly used for benchmarks. Also, I recommend settings Cooling Policy to Active in the Balanced Profile (Processor Management sections).

2) In NVidia control panel, try these: Turn ON FXAA, Turn OFF MFAA, Power Management mode = Maximum Performance (as opposed to the CPU this might actually help the GPU), Texture Quality = Performance (there is no visible change in game but it might take off some load from the CPU), Triple Buffering ON, and try forcing V-Sync ON from here while keeping it OFF in-game.

This is how I usually like to keep my settings for games. DO NOT make this changes in the global section. You don't want to force FXAA for windows apps, or V-Sync for any kind of application. Just make the changes for each game separately.

Hope this will make things somewhat better :).



I'll wait for you answer after testing all this.

nab wrote:
Try Rog Spark see if it can help your system to be more stable, you can still remove this one easily if it doesn't helpl 😉
Over usage of the Anvilnext engine and problematic system usage, I won't argue on how Ubisoft work but pushing assets/effects
and don't take a look of what could be supported and what can not, it is a real problem.
GPU deal whatever data that come in.

NitroX wrote:
You can just try Nab's RoG Spark anyways. It can't do anything bad to your system. I personally tested it and I have it installed since 10 days ago. I've even checked the OS integrity before and after installing the tool, so everything is fine. I also noticed a somewhat improvement in FPS stability while gaming, but I'm not yet sure of the differences.

As for the Undervolt. Even if the temps might seem the same, I assure you that they are not. Once you lower the voltage, your CPU's heat output will be reduced. Let's say that at default settings the CPU eats about 45W while gaming. With a -75mv to core and cache, the CPU power consumption will be reduced to like 38-40, therefore less heat will be produced (You know, almost 100% of the electrical energy consumed by the hardware components is eventually transformed into thermal energy which is heat).

With the Undervolt of -75mv, cores set to x34, x33, x32, x32 and NBFC for CPU, I will be amazed if your temps won't be drastically reduced.

About the last two cores being tied between each other, I really don't know. I always keep the 3 active cores and 4 active cores with the same settings.

One thing to keep in mind: The peak temperature is not a good reference point. Try looking for the changes in average temperature. Peak temperature results from very short and high bursts of CPU frequency, therefore you can have Max CPU Temp of 85C but your average temps could be 78-79C.