Does overclocking k cpus avoid warranty?

[leaf__00]

If overclocks voids warranty , what's the point of Intel selling K series cpu's like i5-2500k or an i7-4790k?
legal and legit?

They do have have extra price tag, does that mean they are build better?
1) Like if it's weight were measured, will there be any mass difference, ever so slightly? even if non-significant, could it be ever SAME as non-k cpu by mass ?

2) Or simply a marketing techniques(watever u call) like insurance product by playing with numbers and risks and prices ?

3) Or simply some distribution difference while making product, since no cpu could be ever same?
Because i saw both HAVE SAME THERMAL TCASE AND DIFFERENT TDP BUT NO FOR SKYLAKE.
By both i mean k and non-k.

My personal situation:
IF it is OK to oc , hw much should that be, BY WORST CASE SCENARIOS? MINIMUM percentage?

If i bought the i7 4790k , OC'ed 10%, that's 4.4 from 4.0ghz
AND
4) Increase the turbo boost to another 10% , that is 4.8ghz. IS IT A LOT? 😛
I know the power consumption should be more than 10% but gonna disable HT,
as energy cannot be created not detroyed or converted 100 % efficiently,thus extra performance from HT should have issue more power and heat.


MY RIG TO-BE:
Hyper 212 evo, open system and for MOBO; H81M-P32L OR GA-B85M-Gaming 3;
ARE THOSE FINE ?
BUT gonna have VRMs and capacitor heatsinks.
(horizontally placed mobo. Just gonna put the heatsinks on it, no screws or anything, SAFE? ).
(got many aluminium heatsink lying in my house, i going to custom cut them)

6) And, ONE MORE:
Does the 88 watt tdp include INTEL HD or not?
Does that 88 watt means when both CPU AND iGPU were maxed or just the cpu?

 

[Eximo]

Really over complicating things here.

Intel sells the chip with an unlocked multiplier and supplies a chipset that supports overclocking. They expect you to do it, so you are not technically violating the warranty. They are basically not guaranteeing performance beyond the rated specs.

For a given silicon die and mask set they produce all the same chip. The chips are then sorted in a process called binning. They take each CPU, run a standard battery of tests against it and see what it is capable of. Those that meet certain voltage/frequency ratios are classified as one type of chip. Those with defects, failed onboard graphics, non-working cache, low clock speeds, high power consumption, etc are branded as different models and nonfunctional parts disabled with a laser.

Percentage isn't really a thing in overclocking, except after the fact. On an i7-4790k you are basically manipulating the maximum boost frequency multiplier.

Kind of defeating the point of having an i7 if you disable hyperthreading. Might as well get the i5-4690k(Z97) or i5-6600k (Z170).

You must have a Z class motherboard for overclocking. The H and B class boards can't do it properly, only a small increase to the BCLK.

Ideally you should purchase a motherboard with included VRM heatsinks. I'm not sure what you mean by laying, but you don't want loose pieces of metal sitting inside the computer. Thermal adhesive or tape is how they should be affixed.

The TDP of the chip should include everything. But it does vary from chip to chip.

 

[synphul]

If you overclock and the result of overclocking damages the chip, yes you've voided the warranty. They do however offer "performance tuning protection plans" that can be purchased in addition to buying the cpu that will extend the warranty to cover overclocked cpu's. Should you damage/fry the cpu, burn up the memory controller or anything else that's part of the cpu from excessive tinkering they will offer a hassle free exchange.

https://click.intel.com/tuningplan/

Overclocking depends on the individual cpu. It also somewhat depends on the rest of the components, the quality of stable clean (ripple free) power provided by the psu, the vrm quality and power phases on the motherboard, the ambient room temps, the performance of the cooler used, case cooling, etc. 3 4790k's or 3 different 6700k's can all overclock differently and you won't know until you try.

Like Eximo pointed out, you won't be overclocking a k series cpu much on a non z motherboard. For the 4790k that means you need a z87 (likely with updated bios) or z97 board. The 212 evo is ok for a budget aftermarket cooler but it's really not enough to cool a heavily oc'd 4790k. You'll want a better cooler like a thermalright true spirit 140 power, noctua nh-d14/d15, cryorig r1 universal, phanteks tc14pe etc. That means a case that's wide enough to support larger coolers, not all cases are wide enough. Many larger air coolers also extend over the ram so the ram needs to be short enough to fit underneath the cooler if that's the case. Corsair dominator ram isn't likely going to work with large tall heatsinks as an example.

I'd advise against custom heatsinks for the vrm unless you really know what you're doing. Simply resting on top isn't going to do much, there needs to be some method of clamping them down with a little pressure along with either thermal paste or thermal pads which are somewhat sticky (think like double sided tape) that adhere the heatsink to the vrm. Since you need a z series board it won't matter much, the board will come with heatsinks. I don't believe I've ever seen a z series board that didn't have them.

 

[leaf__00]

If you overclock and the result of overclocking damages the chip, yes you've voided the warranty. They do however offer "performance tuning protection plans" that can be purchased in addition to buying the cpu that will extend the warranty to cover overclocked cpu's. Should you damage/fry the cpu, burn up the memory controller or anything else that's part of the cpu from excessive tinkering they will offer a hassle free exchange.

https://click.intel.com/tuningplan/

Overclocking depends on the individual cpu. It also somewhat depends on the rest of the components, the quality of stable clean (ripple free) power provided by the psu, the vrm quality and power phases on the motherboard, the ambient room temps, the performance of the cooler used, case cooling, etc. 3 4790k's or 3 different 6700k's can all overclock differently and you won't know until you try.

Like Eximo pointed out, you won't be overclocking a k series cpu much on a non z motherboard. For the 4790k that means you need a z87 (likely with updated bios) or z97 board. The 212 evo is ok for a budget aftermarket cooler but it's really not enough to cool a heavily oc'd 4790k. You'll want a better cooler like a thermalright true spirit 140 power, noctua nh-d14/d15, cryorig r1 universal, phanteks tc14pe etc. That means a case that's wide enough to support larger coolers, not all cases are wide enough. Many larger air coolers also extend over the ram so the ram needs to be short enough to fit underneath the cooler if that's the case. Corsair dominator ram isn't likely going to work with large tall heatsinks as an example.

I'd advise against custom heatsinks for the vrm unless you really know what you're doing. Simply resting on top isn't going to do much, there needs to be some method of clamping them down with a little pressure along with either thermal paste or thermal pads which are somewhat sticky (think like double sided tape) that adhere the heatsink to the vrm. Since you need a z series board it won't matter much, the board will come with heatsinks. I don't believe I've ever seen a z series board that didn't have them.

Thanks for the info.
Well , no z-series no oc at all? even mild ones? gonna be tough on my wallet.

Also i used to run a q6600, oc'ed to 3.3ghz as test bench, temps never exceed 65c(wrst case) n that cpu is rated at 130watt. So, are you sure a Hyper 212 won't cut it as that i7 had 88 watt tdp(even this was after including Intel hd) and i'm using open bench, setup is not inside a casing or any sort of enclosure.
So, it wont be enough?

Anyway, as u say, im going to use thermal pads, x worry, i have done that before. Wont be as good as manufacturer made but still a lot better than stock mobo.
thnk for reply still.

 

[leaf__00]

Really over complicating things here.

Intel sells the chip with an unlocked multiplier and supplies a chipset that supports overclocking. They expect you to do it, so you are not technically violating the warranty. They are basically not guaranteeing performance beyond the rated specs.

For a given silicon die and mask set they produce all the same chip. The chips are then sorted in a process called binning. They take each CPU, run a standard battery of tests against it and see what it is capable of. Those that meet certain voltage/frequency ratios are classified as one type of chip. Those with defects, failed onboard graphics, non-working cache, low clock speeds, high power consumption, etc are branded as different models and nonfunctional parts disabled with a laser.

Percentage isn't really a thing in overclocking, except after the fact. On an i7-4790k you are basically manipulating the maximum boost frequency multiplier.

Kind of defeating the point of having an i7 if you disable hyperthreading. Might as well get the i5-4690k(Z97) or i5-6600k (Z170).

You must have a Z class motherboard for overclocking. The H and B class boards can't do it properly, only a small increase to the BCLK.

Ideally you should purchase a motherboard with included VRM heatsinks. I'm not sure what you mean by laying, but you don't want loose pieces of metal sitting inside the computer. Thermal adhesive or tape is how they should be affixed.

The TDP of the chip should include everything. But it does vary from chip to chip.

Hmm, dont understand what mean u by percentage is "not a thing". I do know temps,power delivery and using unlocked multiplier of k cpu for overclocking.

We can't deny physics. Energy(used to achieve a clock speed) cannot be created or destroyed but can be converted and how we do it is the of art of overclocking. I am aware as frequency gets higher, voltage required will increase at faster rate as efficiency decreases due to increase in temperature. In order to get work done(by increase in ghz), energy is needed(though we are just increasing the multiplier) but, again, electric current decreases as resistance increases with temperature. Thus, when i say percentage of overclock , i meant the increase in frequency at given voltage. Equations can be manipulated but in the end, it must be balanced(right and left), right?

So, i guessed, it all boils down to the percentage of tdp increase of each chip while increasing clock speed , which should not vary greatly , crrect me if im wrong . And ,PLEASE LETS NOT ARGUE, i thought there should be a guideline of overclocking by Intel ,with these attributes., at least like examples.
Srry if it seems complicated but just ignore if prefer so. Im bad at explaining.
Im just confused and still new to overclocking.
Thanks for taking your time.

 

[madmatt30]

You absolutely 100% CAN'T kill a chip or a board by overclocking .

You absolutely 100% CAN kill both and/or chip & board by pushing too much voltage or temps & that's still incredibly hard to do unless you disable every single safety feature available (many if them you will not even be able to)

You certainly can't even overclock on either of those 2 boards, the b85 'may' let you run the max turbo speed as the base clock at the very most.

 

[synphul]

Often times you can raise the speed up a little by using the base clock, default is 100mhz. You might be able to raise it to say 105mhz but it affects other things like the pci, ram etc. If the cpu runs at 4ghz it's using 100mhz base clock with a multiplier of 40x. Raising to 105mhz base clock would be 105 x 40 = 4200mhz or 4.2ghz. The multiplier is locked on non z boards and that's what is used with k series chips with z series boards. The multiplier being raised with the baseclock left alone. Skylake has more fine tuning control and more independence of the base clock but it wasn't that way with haswell.

There are many overclocking guides around the net if you search for them. Literally googling 'haswell overclocking guide' will return a number of results. Manufacturers don't go into overclocking guidelines, that's something enthusiasts do. It's the same with amd, intel, nvidia etc. You're not going to find a comprehensive overclocking guide from any of those for their cpu's or gpu's.

You're right to a degree that as clock speed is increased it takes more voltage to maintain the higher speed stably. However all those control options you want are only available on z series motherboards, not the less expensive h or b series. That's why they're cheaper and why z boards are more expensive, better vrm, heatsinks on the vrm, better control over various voltages and settings. They're made for overclocking while other boards are not, it's more than just whether one has a heatsink on the vrm or not. Power phases are different, a lot of things are different.

To say you can't kill a cpu or a board by overclocking is false. Part of overclocking is increasing the voltage, you can't differentiate between the two. Base clock on haswell affects more than the cpu itself and often can't be raised very far before the system crashes. Either way this sounds like the op has very little overclocking experience or base knowledge, reading through a few overclocking tutorials may be of great help.

The q6600 isn't an i7, they're years apart, miles apart in process size etc. A 212 evo would be fine with an i7 at stock and maybe with a mild overclock but at the end of the day it's a 4 heat pipe cooler with a single 120mm fan. It's rated to 180w yes, but larger coolers are rated to 250w tdp and up. Heavily overclocked and running stress tests would fail on a 212 evo or be running excessively high. Just because thermal shutdown doesn't happen until around 100-105c doesn't mean the cpu is good to go day in and day out at 89-95c. Hyper threading also causes the cores to run hotter than a cpu without, the q6600 didn't have hyper threading nor was it a 130w cpu. Tdp for the q6600 is 105w. The 4790k also has an fivr, fully integrated voltage regulator. A different setup than either the q6600 or skylake cpu's which moved the voltage regulator back to the motherboard. Apples and oranges.

Some overclocking guides.
http://www.overclock.net/t/1411077/haswell-overclocking-guide-with-statistics
https://www.techpowerup.com/reviews/Intel/Haswell_OC_Guide/
http://techreport.com/review/26683/overclocking-the-core-i7-4790k
http://www.overclock.net/t/1490324/the-intel-devils-canyon-owners-club
http://www.anandtech.com/show/8227/devils-canyon-review-intel-core-i7-4790k-and-i5-4690k/2