Recent content by PHVM_BR

During games, the power limit decreasing is completely normal as there will be intensive use of the GPU simultaneously and the system will have to cool the CPU and GPU at the same time. In any laptop the CPU power consumption limit will always be higher when there is load only on the CPU.

If there is no specific guide for the Latitude 7490, you just need to extract the variables and find which ones are related to the IMON slope. Via Throttlestop it will not be possible. Perhaps a palliative alternative could work. On my Precision 7540 I discovered that increasing the power...

You can change the IMON slope so that your power limits can go higher.

Have you tried changing the power limits and checking Lock MMIO?

I believe your increased power consumption is due to the High Performance mode set in Windows power plans. This causes your Speed Shift to be set to 0 keeping your clocks at maximum but more importantly this sets PCI Express power management to off (Control Panel > Power Options > Advanced...

The MMIO limit is a dynamic limit, which varies with load, temperature and duration according to the manufacturer's specific setting for your specific laptop model. As soon as it is lower than the MSR limit, it will dictate the limit. There are two distinct situations in the behavior of the...

According to the your log, your system limits power to 80W during the benchmark. At the beginning of the test, the CPU may reach its maximum clock at full load (4.2GHz on all cores) for some time and then drop slightly (~4.15GHz) because 80W is no longer enough to maintain the maximum clock...

With the original 180W charger it is possible to consume up to 60W on the CPU and 80W on the GPU (original TGP of the VBIOS of the RTX 3000/4000/5000 of the 7540) simultaneously without discharging the battery. I haven't been interested in changing the IMON slope yet, but maybe one day. I...

Its limitation comes from very limited VRMs that probably overheat quickly due to the lack of specific cooling on them. Cooling on the CPU seems good and you could probably work with higher power limits if the VRMs weren't limited. Maybe if you can improve the temperatures of the VRMs you...

Yes

i would experiment with reducing PL1 to 28-35W to try and get more consistent performance. PL2 you can try with same values between 28 and 35W. From your log I believe that your system doesn't support anything above 35W, even for a few seconds.

Is this maximum value of 64 in Speed Shift normal? The max P-core clock of this i7-1355U is 5.0GHz...

Did you change Speed Shift in TPL? This seems strange since the maximum value should be 50 (5.0GHz) corresponding to the maximum clock rate of the P-cores. What must be allowed on this CPU is to limit (decrease) the maximum clock and not increase it. What is the value of PL1 and PL2 in...

You can limit the clock in Speed Shift min-max in TPL and maybe you can change the power limits by checking MMIO Lock.

What happens is that according to the clock the undervoltage can vary. With Speedshift at 0, the clock always remains above 4.0GHz up to 4.5GHz on this i7 and in my case this range allowed a smaller voltage. For light everyday tasks I usually use the balanced profile with Speedshift at 84...