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920xm wont work with turbo boost enabled in m17x R2


Anal4o

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Hey,

When I install the 920xm I bought recently it just hangs between after post info and windows loading screen- black screen, no HDD activity, no response from keyboard. When I disable turbo boost option , everything goes just fine. Its and alienware m17x R2 laptop, with A10 bios. I tried a clean windows install...just the same...could the BIOS be corrupted? I tried tweaking it a bit with Throttlestop today. It behaves like it doesn't get enough power. I can get the multiplier max to 19 on all cores, and its perfectly stable. As long as i try to get even 1 core ( tried on every core ) to 20 multiplier, the system hangs... I don't know what to think anymore...but I guess it's not a faulty CPU and the problem is elsewhere... Should I try reverting to A09? Any other suggestions?

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Did you increased the Turbo Power Limits (TPL) ?

You should increase the Numbers to TDP 80 and TDC 62 and set the Button on Sync Profiles.

Then start an TS Bench with 8 Threads and 32M. While benchmarking look if the multiplikator stays at your 19.00 or if its throttling (going under 19.00)

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The multiplier stays always on 19, so it doesn't drop...but still hangs when set to 20...temperatures on idle are around 46 degrees, and on load with prime 80-81...

Edit: I wonder if there could be some kind of conflict between the CPU and the GPU (6990m) , because since I installed the new CPU , the system wont shut down automatically...it actually shuts down, but doesn't power down, and I have to do that from the alienhead button...but as I said everything works fine with the older CPU (620m) and none of these problems persist

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