05-23-2014 02:50 AM - last edited 3 weeks ago by ROGBot
05-23-2014 03:23 AM
ithanium2 wrote:
Hello,
I just bought a new G750JZ and I am a little disappointed. First of, the Asus Drivers/Download section for this model is incomplete. Where is the webcam driver/utility? Where is the Asus GPU Tweak Tool?
The second issue is more pressing matter since it regards temperatures and fan noise.
The left fan (CPU) ramps up quite often when browsing, and doing light stuff in desktop. That is not normal...not for such an expensive laptop with such a cooling system. My old Asus laptop (some budget T4400 crap) was quieter.
In gaming, the 880M seems to get hot. I only tested in Diablo 3(not quite a demanding game), and it reached 85 degrees C (with a 25mV undervolt).
I will test again today with stock voltages in Battlefield 4 but I have a feeling it will go past 90 and might even throttle. Since replacing the thermal paste on CPU and GPU will void my warranty, and I am not sure if the authorized service in Romania will do this operation free of charge, I might return the laptop (note that I have not contacted them yet).
For comparison look at this guy's temps and acoustics - http://forum.techinferno.com/asus-gaming-notebook-forum/6553-cold-g750jz-offensive.html I spent this amount of money to get good performance and the best and most silent laptop cooling...so far...not impressed.
05-24-2014 11:46 AM
05-24-2014 06:44 PM
ithanium2 wrote:
Well things are not so great and I have reasons to suspect that the factory thermal paste was not applied too well.
For starters, It is not normal for the CPU fan to spin up so high during low-resource desktop activities like web browsing, or even writing a forum post. The power plan is set to Balanced btw. Regarding this matter, I did some investigation in the laptop BIOS and I found the thermal behavior. It has 2 (well 3 to be fair) thermal stages:
- Active Trip Point 1: at 55 degrees C and it ramps up the fan to 75%
- Active Trip Point 0: at 71 degrees C and it ramps the fan up to 100%
- Passive Trip Point: past 95 degrees C when the CPU begins throttle
Now, the thermal profile might not be the greatest, but why does an underclocked Haswell CPU (Balanced power plan and light desktop activities) reach 55 degrees?
I also found out that the 880M GPU throttle point is 93 degrees C.
The tests I have done so far:
1. Prime95 (In-place Large FTTs) + Furmark - 86 degrees C on CPU and 93 degrees C on GPU (little throttling here).
2. Wolfenstein: New Order - 80 degrees C on CPU and 83 degrees C on GPU.
06-03-2014 09:55 PM
05-24-2014 07:53 PM
HomieOC wrote:
55 is hot for idle... Mine idle around 40 c. Im currently running off intel gpu in this pic, but my nvidia card idles at 53 c
I Also have the G750JZ
05-24-2014 08:15 PM
05-24-2014 10:30 PM
05-24-2014 10:44 PM
ithanium2 wrote:
hmscott,
The one of the main reasons I bought the JZ was the better cooling system, compared to JM/JS atleast. Now the 880M, probably runs hotter and I might be ok with the temps, I am not OK with the CPU temps...they seem too high.
My idle CPU temps are 43-44 degrees C but I find them a little irrelevant to this matter.