Django

Some Haswell CPU's have their own dividers such that when BCLK is say 167MHz then PCIE clocks are 100MHz, google "bclk straps". Clocks will be controlled via Management Engine (ME) firmware which may block bclk overclocking on non-k processors. Skylake Vcc specs. Usually with semiconductors too much voltage will kill a chip instantly. Too much current can be a bit more subtle, anywhere from degradation to snowballing into oblivion. This can also be compounded by high temperatures. Of course the more core voltage one uses then typically more current is used.

Undervolting the CPU can help it run a little faster. An SSD would be a great improvement, did someone already say that.

Specs for 3770k are TDP=77W, Tcase 67.4C and Tjmax 105C. TCC activation is at 105C and is designed to keep Tcase within spec at 77W. So Tjc = (105-67.4)/77 = 0.488C/W. Unfortunately Intel does not publically supply Tcase for the 6700k so if Techinferno's spec of Tcase = 72C is correct then Tjc = (100-72)/95 = 0.295C/W For example a cooler and TIM thermal resistance of 0.2C/W and local ambient temp of 35C then i7-3770K Tja = ((0.488+0.2)*77)+35 = 88C i7-6770K Tja = ((0.295+0.2)*95)+35 = 82C So in this case the 6770K runs cooler even though it's using more power. Edit: Found the Intel spec, techpowerup is wrong. Some changes as well, a 95W TDP with 130W cooling is rated at 91W TDP while a 65W TDP with 65W cooling is rated at 47W TDP. So i7-6700K Tja = ((0.395+0.2)*91)+35 = 89C

The 4720HQ is a 2nd refresh of the 4700HQ with a higher base frequency and turbo (200MHz). Both have 2 extra bins above default clocks that can be used but the biggest problem is providing adequate cooling and power. A lot of laptops struggle with this, Lenovo not being an exception. If the cooling is the same on both then there's not a lot of difference IMO. Try googling each machine with key words "throttling" and/or "hot".

Yes, once you have restored the backup to the new 3 drive array. Using Intel RST UI in windows makes it very easy. The help file will explain, once you add the extra drive the data on the other three will be migrated across the 4 while you carry on working. Similarly if you are RAID ready with just one drive, you can add a second drive later on to produce a RAID0 array and data will be migrated to the new member disk. Here's an example http://forum.notebookreview.com/threads/official-msi-ge60-2013-owners-lounge.722196/page-73#post-9556273, the priciple for adding drives is very similar.

What benchmark? What were you using to measure temperatures? Did your benchmark include iGD?

The US is not the only country to have courts Or maybe I should say "why do they have to be tried in the US?"

Lightworks

Backup is always a good idea regardless. Depending how much data you are using you could recreate the Raid0 with three drives and restore your backup then when the 4th drive comes add it to the array as is. Depending how much you value your data you should have a remote backup. If the laptop is destroyed say in a fire for instance, then you've lost your backup also.

Lenovo is a multinational Company, i.e. worldwide.

Lenovo already provide a means to disable this as it has security vulnerabilities, see link in post #30. No BIOS mod necessary. Link to tool for cleaning up and disabling LSE for those that have trouble reading. http://support.lenovo.com/us/en/downloads/ds104370

Do you mean as shown here? https://support.lenovo.com/us/en/product_security/lse_bios_notebook No BIOS flash necessary as there's an option to disable it.

TDP is specified at the base frequency, not turbo frequency. Take a mobile 47W TDP Haswell quad core i7-4700MQ for example. It has a base frequency of 2.4GHz and turbo up to 3.4GHz (4 cores active). It also has programmable power limits so we can set those higher than 47W. Dynamic Power = V2FC so increasing voltage from say 0.775V at 2.4GHz to 1.000V at 3.4GHz results in a dynamic power increase of ~2.36x. So if dynamic power at 2.4GHz is say 35W then at 3.4GHz same load it would be 82W plus power of the rest of the package. Add some overclocking above that and it's even higher.

@linuxfan66 TDP is a specification for designing a minimal cooling solution under worse case scenario. You can usually find the following under the "thermal mechanical design guidelines" from Intel. Improve the cooling solution and you can dissipate more power while keeping within thermal limits. Note that TDP is based on the HFM aka base frequency. Similarly the specification for the i7-6700K is 4GHz, but that's not the highest frequency it can operate at. Hope that helps.

Do you really expect everyone to read ~700 posts? Better IMHO if the first post is updated, failing that then search which incidentally only shows one vague reference (post 565) to the folder I mentioned.