what do you use?chameleon or clover?
In Chameleon I have issues with HD4000 the display just flickers and the mouse has lag(QE works).In Clover I can`t get QE in hd4000,it is detected but just with 4 MB,but ithe display doesn`t flicker and the mouse pointer is perfect no lag.
As for the CPU temperature,I tried so many things and did not succeed.I am so curious how come it works on your V3-771g.I have the requested speed steps,but it switches from one speed to another one so fast.In windows it stays on one speed and shifts to another one just when it needs it,most of the time it stays at 1.2GHz which is the lowest on my i5-3210m.
Oh yes and the time issue,does your time in windows get left behind?
I am using Chameleon over here without any issues. I injected the HD4000 yia device properties (and the Intel injection by Chameleon, which normally DOES NOT WORK), which are different on our systems (i7 <-> i5). I am doing this since ML came out.
I also patched the DSDT to recognize the HD4000 (which can be done with MacIASL, etc.) and last but not least I am using a patched IntelHDCapriFB kernel extension.
All this results in 2178KB VRAM on the Intel HD 4000, full QE/CI, no flickering, no mouse lags (which cannot come from the HD4000).
I did that once and just use the extensions and the DSDT until now without problems.
Mouse: Check the kernel extension that you are using. I had to try different ones from different devs.
Temps: Hmm. Well, currently I am at 39°C and 1,19Ghz with all cores (surfing the internet for hours and playing MP3s), BUT that is something completely different from an i5. I got hands on a i5 from Sony yesterday, which constantly spinned around the fans in Windows 7 while surfing and playing Minecraft... I thought that this thing would explode.
For real, the speed stepping by the system (OSX) is on my machine the same as on Windows 8.1. OSX as a UNIX system handles Programs differently than Win. OSX uses other priorities for single threads (thats multitasking...).
To make a long story short: Things like Chrome use up a lot of CPU power while running (even on my system) and vary the core speeds from 1,2 to 2,2 GHz on all cores. During these periods my fan spins up a little (I barely hear it). On heavy load like playing Borderland2 e.g. the System goes up to 3.3 GHz and the fans are spinning louder with temps up to 70°C.
YOUR SYSTEM does not have these 4 cores like mine and has to use "more power" for the same actions. Remember that you got a WIN PC-hardware that should work like a Mac... :-)
Thinking this over, leads me to the conclusion that clover might not be the best choice for you and could create some issues (when not configured right).
Secondly try Safari... it does not use this much processor load...
Oh, nope, haven't got a time issue here. Or do you mean the 1 hour difference between Win and OSX. That is normal, because both systems use another "way" to get the time (BIOS UTC time or BIOS + System time). The internet time update handles this (and is slower on Win with it).