Broadwell OC

[akiasmaka]

Hiii 

 

So i would like to overclock my new i5 5675c in around 4.x (x in range(0, 9)  ). Any reccomended settings would be appreciated.

my specs are

motherboard: Gigabyte udh3

ram 4 x 2 gb corsair 1600mhz 1.65v

psu 750w 80 gold efficiency 

cooling coolermaster V8 + 6 case fans (yeap it sounds like a jumbo jet)

 

Thanks in advance

[Indus Monk]

I don't think broadwell is unlocked

[pinksnowmanshandle]

I'm guessing the C sku is not unlocked. I didn't even know that Intel was dropping any Broadwell CPUs for desktops since Skylake (some Skylake stuff might even be coming this summer or fall) is due by early to mid 2016 (which I'm guessing Broadwell-E or Skylake-E will be available by mid 2016).

[techguru]

broadwell is unlocked

the C means its unlocked

[ApolloX75]

Hiii

So i would like to overclock my new i5 5675c in around 4.x (x in range(0, 9) ). Any reccomended settings would be appreciated.

my specs are

motherboard: Gigabyte udh3

ram 4 x 2 gb corsair 1600mhz 1.65v

psu 750w 80 gold efficiency

cooling coolermaster V8 + 6 case fans (yeap it sounds like a jumbo jet)

Thanks in advance

Hard to do without having had hands on experience yet but I doubt its very different from a 4690k. Watch a few videos on oc'ing Haswell and that should get you started.

[runit3]

http://www.tweaktown.com/articles/7222/intel-core-i7-5775c-3ghz-broadwell-lga-1150-cpu-performance-overview/index11.html

TweakTown is the only one I could find who has done a small OC test on the Broadwell's. I would assume Aandtech and others will be releasing their full reviews shortly.

 

If you have an engineering sample it's likely to be hit or miss OCing. If you have a valid retail release make sure to post your results up here, people will definitely be interested.

[typographie]

I would assume Aandtech and others will be releasing their full reviews shortly.

 

http://www.anandtech.com/show/9320/intel-broadwell-review-i7-5775c-i5-5675c

Anandtech had "part 1" of their Broadwell review up ages ago, but part 2 has been conspicuously absent for a long time. Presumably overclocking is being saved for that half.

 

The generic answer to the OP is that every chip is different and we cannot give you settings. You're going to have to experiment and run stability tests to get the best results for your hardware.

ram 4 x 2 gb corsair 1600mhz 1.65v

That works? The reviews say Broadwell needs 1.35 V DDR3L, although most of them are running 1.5 V DDR3. I'd be somewhat concerned about 1.65 V DDR3.

[-rascal-]

'Legit Reviews' got a change to review the i7-5775C. From the looks of it, you need a lot of voltage to bring it up to the 4.4GHz+ range. I mean signitcantly more...to the level you are stepping into the AMD voltage levels. At that point, your 65W TDP is no longer exists.

http://www.legitreviews.com/intel-core-i7-5775c-broadwell-processor-review_166875

To hit 4.2 GHz we had to increase the voltage to 1.3V and then to hit 4.3GHz we had to increase it again to 1.35V.

We later learned that you can put more voltage to the processor without blowing it up right away and was able to get 4.4GHz stable at 1.475V.

<p>

Intel Core i7-5775 Overclocking Expectations:

• 4.1 GHz – 1.225V
• 4.2 GHz – 1.3V
• 4.3 GHz – 1.35V
• 4.4 GHz – 1.475V
• 4.6 GHz and beyond – 1.6V (not recommended for normal use)

All that efficiency is thrown out the window with the overclock though and our idle power increased to 34.6W and at load we were now hitting 119 Watts, which is similar to a Intel Core i7-4770K Quad-Core processor with default settings.

With their review sample, they had to overclock the i7-5775C to 4.2GHz / 4.3GHz to match what the CPU performance of i7-4790K at stock. The power draw becomes similar anyways when you overclock the chip.

[MichaelTechTalk]

Why do you want to, better yet need to OC a Broadwell i5? 

[NeatSquidYT]

I'm guessing the C sku is not unlocked. I didn't even know that Intel was dropping any Broadwell CPUs for desktops since Skylake (some Skylake stuff might even be coming this summer or fall) is due by early to mid 2016 (which I'm guessing Broadwell-E or Skylake-E will be available by mid 2016).

C is the new K.

Why do you want to, better yet need to OC a Broadwell i5? 

Umm.... wat? Am I missing out on something?

[MichaelTechTalk]

C is the new K.

Umm.... wat? Am I missing out on something?

The question is simple

[MageTank]

Hiii 

 

So i would like to overclock my new i5 5675c in around 4.x (x in range(0, 9)  ). Any reccomended settings would be appreciated.

my specs are

motherboard: Gigabyte udh3

ram 4 x 2 gb corsair 1600mhz 1.65v

psu 750w 80 gold efficiency 

cooling coolermaster V8 + 6 case fans (yeap it sounds like a jumbo jet)

 

Thanks in advance

Where did you get this CPU? Was it in a pre-built? This CPU is not for sale yet on retail markets, unless its from one of those HP pre-builts that i've heard about.

[pinksnowmanshandle]

C is the new K.

Why would Intel drop the K sku?

[ApolloX75]

Why would Intel drop the K sku?

Just mixing up the naming scheme for Broadwell. From what we've seen it'll be back for Skylake.

[pinksnowmanshandle]

Just mixing up the naming scheme for Broadwell. From what we've seen it'll be back for Skylake.

Ah okay. 

[MageTank]

Why would Intel drop the K sku?

The C is believed to stand for Crystalwell.

 

 

 

The 128 MB of eDRAM is on the same package as the CPU, but in a separate die manufactured in a different process. Intel refers to this as a Level 4 cache that is available to both CPU and GPU, naming it Crystalwell. 

 

The 5675C and 5775C are going to be the only Broadwell CPU's aimed at desktop, so they are also the only two broadwell CPU's that also has crystalwell graphics. The C would then make sense. 

 

That being said, this theory is not concrete. There were 3 other Crystalwell based iGPU's released under Haswell. However, they were mostly used in integrated systems like the Zotac Z-boxes, and not capable of fitting in a standard desktop motherboard. 

 

So yeah, that's how i see it. I just pretend the C stands for Crystalwell, and it makes me feel at ease. Since Intel never did tell us what the K stood for, i like to assume it stands for "Kore unlocked" or " Kan overclock it", lol.

[ProKoN]

here are some broadwell i7 overclock results

 

 i understand there are like 2 people that made submissions but there is quite a bit of info if you look at each submission. the imc is possibly inferior to haswell....but that dont make any sense at all

 

http://hwbot.org/hardware/processor/core_i7_5775c/

[SuperCookie78]

C is for the better included graphics unit and is the only variant that can overclock. Where did u get a broadwell cpu desktop isn't out yet?

[akiasmaka]

Where did you get this CPU? Was it in a pre-built? This CPU is not for sale yet on retail markets, unless its from one of those HP pre-builts that i've heard about.

well in greece its on sale in every computer store

[akiasmaka]

C is for the better included graphics unit and is the only variant that can overclock. Where did u get a broadwell cpu desktop isn't out yet?

well all greek stores have them lolz i though they were out worldwide

[akiasmaka]

http://www.tweaktown.com/articles/7222/intel-core-i7-5775c-3ghz-broadwell-lga-1150-cpu-performance-overview/index11.html

TweakTown is the only one I could find who has done a small OC test on the Broadwell's. I would assume Aandtech and others will be releasing their full reviews shortly.

If you have an engineering sample it's likely to be hit or miss OCing. If you have a valid retail release make sure to post your results up here, people will definitely be interested.

its a retail one tell me what test would you like to see and i will look forward to post the results

[runit3]

its a retail one tell me what test would you like to see and i will look forward to post the results

Max OC and cinebench R15 would be interesting

[SuperCookie78]

Your Grerk I'm Greek, but I live in America. I really hope Greece gets backup on it feet. I remember when the broadwell rumors where coming out that they hit 5ghz on air.

[akiasmaka]

Max OC and cinebench R15 would be interesting

Ok these are stock   i will upload OC tests when i will manage to OC it (i fail to boot all the time with changed settings ??!?!? any help   i even increased the base clock from 100 to 101 and it failed lol  )

[runit3]

@akiasmaka try VCCIN to 1.9-1.95v, vcore 1.25v. You may also need to update the BIOS.