jasonlam

You have the latest BIOS, there is a newer EC. Both Mod & Stock versions are in the OP. If Stock doesn't fix the problem, then try to play with Turbo settings in Mod BIOS. Clevo has a bit of a messy ACPI code...

I sent the laptop back to Metabox and they are working on it now. Trying to find out why and hopefully they can fix it.

What I am guessing is that the problem comes from the stock BIOS. Since I bought this laptop for only one month, I will stay with the stock BIOS. And for sure, when I have better knowledge to the Clevo laptop, I will go for the mod BIOS

Besides, I am so sure your friend will get better soon! A great support from me.

Make sure to use the latest BIOS/EC alongside the latest Clevo Hot Key App in a non-power-saving mode:

ftp://ftp.clevo.com.tw/P1xxSM-A/OTHERS/Hotkey.zip

Hi Prema,

What is the latest BIOS & EC version for P157SM-A? I am using 1.03.03 for both BIOS & EC.

Besides, I've just updated the Hot Key App to 2.31.42 (from the link you've given - Clevo website).

The turbo boost is still not working.

And, at the mean time, Metabox is also trying to find out why it doesn't work.

I don't know whether there is such a change in the technical side, but I literally never heard a max fans till the time I maxed them out on prema bios during stress tests (temperatures were around 80 degrees).

I was mistaken. That wasn't the full speed of my fan. my bad

I've got a question. Does the stock BIOS of P157SM-A disable the Turbo Boost function of Haswell CPU?

The turbo boost of my 4700MQ doesn't work at all no matter what program I run. The core frequency stays constant at 2.4Ghz.

Thanks for the work there, svl7. I've got a few questions about flashing the vbios. Really appreciate if someone can help me with that.

1. Does the 870M modded vbios use the stock settings (voltage, GPU clock & Memory clock), and disable the GPU Boost?

2. If a bad vbios flash occurs, would my Clevo P157SM still be able to boot up with the iGPU and allows me to flash the stock vbios that I have backed up? (Unless the bios itself has defects and cannot boot up with the iGPU. And in this case, the only option is to have RMA. Am I correct about this?)

That should be normal, I think.

The fan of my P157SM starts running at full speed once the GPU reaches 70 oC.

The fans are there to ensure the components not being overheated.

What about the temperature of the GPU with and w/o OC?

That'd be great if we can see the difference in terms of temperature.

Have been waiting for GTA V for so long as I don't have any console....

Made an order of a new Clevo laptop just a few days before the GTA V PC announcement. Hopefully, the GTA V works fine with the PC, unlike the GTA IV