jeudi 5 novembre 2015

**(Un)Official Clevo P650RG / P650RE3 / P650RE6 Owner's Lounge / Welcome to the Robin's Nest =P **

First, if shadowplay is owned, simply run some game in fullscreen at 1080p (if your screen resolution is larger than 1080p, please run the game in 1080p for the purpose of this test) and record a ~10-15 minute video. This will require Handbrake to render the video for quite some time, pushing the likelihood of your machine remaining over the TDP limit. The reason is that low compression and high bitrate are usually processed very quickly in handbrake. Even under 1v at 3.5GHz I was using well over my 47W limit on my CPU. Higher resolutions render slower however, so 1620p and 4K resolutions are not the best.

Handbrake test. Copy the settings you see in the screenshot, which also gives an example of how Handbrake is meant to break your 45W limits. Render a long video from Shadowplay (or find a low compression video elsewhere; quicksync videos are fine as well as long as they are high bitrate, etc).

Prime95 test should just be a CPU stress with all workers. I've never run P95 (never needed to) so I have no screenshots, however it is well known to use quite a lot of TDP.

TSBench is self-explanatory. Simply launch it, change it to 8 threads (or 4 if you have an i5, as those are quadcores now) and click the 1024M button. Note that due to my CPU's exceedingly low voltage at stock speeds, in order to surpass the TDP limits for TSBench I overclocked my CPU to 3.8GHz and returned it to default voltage, unlike in other screenshots.

XTU benchmark is also self explanatory. There's an option to run it. DISREGARD THE RESULTS OF THE BENCHMARK ITSELF. We're only interested in how the CPU behaves during the test. The results of the test rely far more on good RAM timings and speeds over the rest of your system, so the result is pointless. We're after the stress it puts on the CPU.

Simply note the trend in the CPU speeds according to Throttlestop, and what lights up in Dufus' Limit Reasons. PL1 and PL2 are power limits. EDP is current limit. We can worry about current limit later, but tell me if current limit throttle is showing up before power limit throttle has a chance to show up and we'll see what we can do. When you throttle, note the TDP limits you throttle to. Remember, a yellow light doesn't mean anything. Solid red means it's throttling for the limit reasons program.

If your BIOS is unlocked in some way, try using BIOS settings or XTU settings to raise your turbo boost power limits and turbo boost short power limits and seeing if the CPU listens to the settings, and how long it lasts for under loads. If you can overclock it too, even better.

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**(Un)Official Clevo P650RG / P650RE3 / P650RE6 Owner's Lounge / Welcome to the Robin's Nest =P **

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