I've recently bought an Asus FX504GE with the following specifications:
16 GB of DDR4 2666 MHz in dual channel.
Nvidia 1050 Ti 4 GB GDDR5
128 GB M.2 drive and 1 TB 5400 RPM mechanical drive.
Let me see if I understand how is this processor supposed to work, please let me know if i I'm wrong with any of the points.
- It should be able to keep working at 45 W for any given time without risking it to damage so long the temperatures do not exceed 100 Celsius which is the max rated temperature.
- It should be able to reach 4.1 GHz on a single core or 3.9 GHz on all 6 cores while temperatures allow or for the maximum duration of the boost window or in case temperatures do not allow it should lower clock anywhere from 3.9 GHz to 2.2 GHz.
- Boost frequency should be enabled once there is a spike or higher demand of computational power.
- TDP and boost frequency work like that for any processor (counting on it having Turbo Boost) regardless of the series of the processor H, U, Y, Xeon, etc.
The issue I'm having is the following: The CPU is constantly being limited to just 25 W even thought this is a 45 W part and temperatures are at a relatively low 70 - 73 Celsius. I've already contacted Asus on this regard an they insist it is a normal behavior, to which I don't agree.
Here are some results of stress testing Using AIDA 64
Even though the CPU was used at 100% power never was more than 26 W, clock speed was keep at a steady 2.22 GHz on all cores and turbo boost never kicked in, and finally temperatures never went above 60 Celsius. On other scenarios CPU speed could reach more the the base 2.2 GHz but the power limit is keep at 25 W no matter what.
Running CineBench R15 just corroborates the situation as this PC is only scoring a mediocre 700 points maybe 800 in the best case, usually 2nd and 3rd test give better results as more or less 1/3 trough the test it can go full 45 W and scores could reach somewhere in the 1000, To measure power consumption I used XTU
Using XTU to stress test the CPU It is possible to achieve full power (bouncing from 41 to 46 W) and frequencies from from 3.5 GHz up to 3.9 GHz. For some reason It is the only test in which this is possible from the start, and can keep such demands without any issues for 15 minutes or more.
I've had my PC plugged during the rests, power plan is set to high performance, BIOS is up to date and there is no setting I can change to enable or disable power limitation, I've done a factory reset and even a clean Windows installation and still no luck.
I've tried with Asus support who insist this is a "normal behavior" and "it is to prevent damage on the CPU" which I don't believe at all, maybe i'm wrong that is why I'm here now, to me it is more of a BIOS lock they have on this PC either because the cooling system is not that great or perhaps the VRMs are of a cheaper quality. I've also done some undervolting 130 mV and it helps with temperatures and clocks but it does not lift the 25 W limitation. Also some Posts on the internet regarding this particular model https://linustechtips.com/main/topic/934169-i7-8750h-power-limit-throttling-low-tdp-even-though-cooling-is-capable/ and Just got this today, so I have to share with you guys ... | TechPowerUp Forums and even a review ASUS TUF FX504 Gaming Laptop Review and Benchmarks - YouTube mention the 25 W limitation I'm facing, this ultimately leads me to believe it is an issue with the computer it self rather than the CPU which is what Asus says.
Tank you and hoping to hear from you soon.