Intel Haswell Overclocking Clubhouse.

[Anusha]

curious how you guys are running your VCCIN voltage...

i'm at 1.7v for 4.5ghz core@1.25v/4ghz cache@auto volts with ram @ 2400 mhz 1.65v.

i'm at AUTO (1.75) with LLC level 6 (max level 8).
i wonder if lowering it would improve thermals. even 1 degree is better than nothing.

but my CPU is a dog. i can only clock to 4.3GHz with Vcore keeping below 1.3V. 4.3GHz @ 1.24V now.

 

[vega22]

curious how you guys are running your VCCIN voltage...

i'm at 1.7v for 4.5ghz core@1.25v/4ghz cache@auto volts with ram @ 2400 mhz 1.65v.

vcore + 0.4v seems to be the sweet spot for me

 

[Anusha]

vcore + 0.4v seems to be the sweet spot for me

LLC at extreme? What if you don't use LLC?

What if you are using adaptive? Say you put 1.2V adaptive. It might go up to 1.3V when AVX instructions are heavily used. Then it should be 1.7V instead of 1.6V. Which one should we use? 1.6V or 1.7V?

 

[freeboy]

My understanding with my board, GB UD4H, is that this is a setting that is always used by profile, so it has a range from nominal to extreme of about 6 or 7 steps or stages... and is used to counter droop... sorry if this does not help...

 

[TheHunter]

LLC at extreme? What if you don't use LLC?

What if you are using adaptive? Say you put 1.2V adaptive. It might go up to 1.3V when AVX instructions are heavily used. Then it should be 1.7V instead of 1.6V. Which one should we use? 1.6V or 1.7V?

1.7V is the default "lowest", intel "recommends" 1.8v.


If you dont use LLC, ie use at lvl1 then you'll probably need more vcore. LLC 6-7 is ~ 65-85%

 

[vega22]

LLC at extreme? What if you don't use LLC?

What if you are using adaptive? Say you put 1.2V adaptive. It might go up to 1.3V when AVX instructions are heavily used. Then it should be 1.7V instead of 1.6V. Which one should we use? 1.6V or 1.7V?

i dont use adaptive when i am running it on the higher multi tbh dude. all power saving stuff is off and its full speed all the time.

 

[Kursah]

Well another small update, I am down to 1.241v on my CPU at Manual for now while I find stability, then will further test with adaptive. I have Cache at 1.16v (adaptive now works correctly after 1405 bios update!) and set to 8X-40X. I see some people run 35X-xxX mutli...is there any good info on this yet? Maybe I missed it? I kind of like the thought of my cache going to idle with CPU clocks...but maybe that's not how the cache is supposed to work?

I've been playing with the ASUS Realbench stress test, and found some of my settings before weren't stable in Realbench or Wargame: EE...but were in AIDA and Intel XTU. ATM, my stability is swapped...Wargame: EE passed 2 hours without a single glitch and may be the longest single session I've had it stable for yet..and Realbench passed 5 passes and stress test with current settings. Last time I tried AIDA and XTU both caused the x124 bsod but that was before I further increased vcore back into the 1.24'x from 1.23's. I may not have a golden chip, but it has been a pleasure to work with thus far!

I plan to see if I can attain 41-42X cache on low voltage. My CPU input voltage is still 1.72v as AUTO dictates, but honestly if my gaming and an AVX stress test are stable I may leave it that way. We'll see as I get more time to play with it!

 

[Womper]

Well another small update, I am down to 1.241v on my CPU at Manual for now while I find stability, then will further test with adaptive. I have Cache at 1.16v (adaptive now works correctly after 1405 bios update!) and set to 8X-40X. I see some people run 35X-xxX mutli...is there any good info on this yet? Maybe I missed it? I kind of like the thought of my cache going to idle with CPU clocks...but maybe that's not how the cache is supposed to work?

I've been playing with the ASUS Realbench stress test, and found some of my settings before weren't stable in Realbench or Wargame: EE...but were in AIDA and Intel XTU. ATM, my stability is swapped...Wargame: EE passed 2 hours without a single glitch and may be the longest single session I've had it stable for yet..and Realbench passed 5 passes and stress test with current settings. Last time I tried AIDA and XTU both caused the x124 bsod but that was before I further increased vcore back into the 1.24'x from 1.23's. I may not have a golden chip, but it has been a pleasure to work with thus far!

I plan to see if I can attain 41-42X cache on low voltage. My CPU input voltage is still 1.72v as AUTO dictates, but honestly if my gaming and an AVX stress test are stable I may leave it that way. We'll see as I get more time to play with it!

What CPU clock are you able to do at 1.241v?

Cool, so maybe that BIOS update did help me get 1.34v adaptive working. Now the question is whether 1.34v adaptive is too dangerous. I don't plan on running hardcore AVX workloads, so how bad is the occasional jump to 1.45v if a game has a few AVX instructions?

 

[vega22]

4.2ghz uncore

 

[Kursah]

What CPU clock are you able to do at 1.241v?

Cool, so maybe that BIOS update did help me get 1.34v adaptive working. Now the question is whether 1.34v adaptive is too dangerous. I don't plan on running hardcore AVX workloads, so how bad is the occasional jump to 1.45v if a game has a few AVX instructions?

Oh ya I forgot to post that lol. 1.241v at 4.5Ghz.

I would assume that a few shots up to 1.45v aren't going to be too detrimental...but I don't know how bad degradation is with these chips compared to older ones. You've got the $25 RMA plan right? If so I'd say go for it, as you said, if you don't do hardcore AVX workloads I can't imagine it'd be a big deal.

 

[Kursah]

Hey anyone running an OC'd Haswell setup with 4dimms full of memory faster than 1600? I'm thinking about getting another set of my 2133 before I can't afford to...8GB is fine..I should've jumped for 16GB but can't afford to atm. I'm curious how 4 dimms would stress the IMC, maybe need to increase vMem and Vccio? I am assuming that OC stability may be comprimised as any chipset before-hand with onboard IMC was...but I haven't had a system with a 4.5GHz clock and 4dimms full up and knowing how touchy Haswell can be..I was just curious...

 

[HammerON]

I am running these at 4.4 GHz with no issues:
G.SKILL Trident X Series 16GB (4 x 4GB) 240-Pin DD...

 

[TheHunter]

There is also a new bios for Asus Z87 Deluxe


Z87-DELUXE BIOS 1405
*Improve system stability.

File Size 5.3 MBytes
update 2013/08/30
https://www.asus.com/Motherboards/Z87DELUXE/#support_Download_36

 

[PolRoger]

Hey anyone running an OC'd Haswell setup with 4dimms full of memory faster than 1600?

I've been running full bank with a 4x4GB kit @2133C8. Looks to be fairly stable(?)... 42(+) hrs. 100% load "crunching" Rosetta.

There is also a new bios for Asus Z87 Deluxe


Z87-DELUXE BIOS 1405
*Improve system stability.

File Size 5.3 MBytes
update 2013/08/30
https://www.asus.com/Motherboards/Z87DELUXE/#support_Download_36

Hopefully we'll see some stability improvements with this new BIOS?? I'm going to flash over soon. One thing I miss about the ROG series vs. regular ASUS boards is the more frequent BIOS updating that is done... including "betas" etc that are released.

On a side note... This past Friday I decided to flash the BIOS on my old "email rig" (ASUS MVGene/3570K) and I apparently was a careless "bonehead" and "bricked" the BIOS chip!

At least the Maximus V Gene has a replaceable BIOS chip and a new one can be ordered for ~$15. :shadedshu

 

[freeboy]

is the chip really dead? wow, I would think you at worst should only be able to damage the firmware.. leading to some reloading.. That suxx

 

[TheHunter]

I've been running full bank with a 4x4GB kit @2133C8. Looks to be fairly stable(?)... 42(+) hrs. 100% load "crunching" Rosetta.



Hopefully we'll see some stability improvements with this new BIOS?? I'm going to flash over soon. One thing I miss about the ROG series vs. regular ASUS boards is the more frequent BIOS updating that is done... including "betas" etc that are released.

On a side note... This past Friday I decided to flash the BIOS on my old "email rig" (ASUS MVGene/3570K) and I apparently was a careless "bonehead" and "bricked" the BIOS chip!

At least the Maximus V Gene has a replaceable BIOS chip and a new one can be ordered for ~$15. :shadedshu

I flashed it ok, but now I noticed I need more voltage at x42 cache, it could bsod or hard freeze in heavy memory loads.. Idk maybe I wasnt completely stable x42 1.122v by default, I was running unlocker 1.9.2 (file unlock) and that thing stressed my cpu to the max and used ~ 4gb ram. I fixed it with lower x41 cache or at x42 and adaptive voltage 1.13v

Well I ran more stressful apps/games before so this got me a little baffled lol



btw you have a very nice chip, 1.21v @ 4.6Ghz looks sweet


@Kursah

4x4 memory config is fine, im using 4x4 2133mhz CL9 kit and it rocks, I can OC to 2666mhz CL11-13-13-30 (1.65v) with cpu at 4.6Ghz (4.2ghz cache) and its still ok.

I have this Balistix Elite kit
http://uk.hardware.info/reviews/333...eview-three-high-end-memory-kits-from-crucial

[

infos:| USER NAME | CPU/BATCH | Stock VOLT:CPU/Cache(Ring) | OC CPU CLOCK | OC CPU VOLT | OC CACHE/RING MULTI | OC CACHE/RING VOLT | MEM SPEED | COOLING |notes

10.|TheHunter| 4770K/L308B202 | 0.967 V/0.977 V |4500(45x100 MHz)|1.170 V|x41|1.115 V|2133 MHz C9|Corsair H90|ASUS Z87 DELUXE

Sorry i mixed it my default cpu is 0.976v cache is correct 0.977v


and my final OC for now, 4.6Ghz @1.235v|cache 4.2Ghz @ 1.13v, rest is as it is.
http://valid.canardpc.com/qc9z6q

 

[Anusha]

ever since using XMP profile for my RAM, i didn't get any rounding errors in Prime95. it definitely must have been an issue with the tertiary timings that the motherboard chooses for AUTO.

reinstalling Windows seems to have fixed my sudden reboots that didn't give any BSOD/bugcheck codess. it could have been some corrupted system file. but i didn't install AISuite this time around. maybe it could be the reason. sorry cannot really narrow down. i don't wanna test it either. haven't had any issues for 3 days. played a lot of Crysis 3, encoded a lot of videos through Handbrake. stable enough for me.

 

[Womper]

I want to go after some lower voltages for 4.8GHz. I'm concerned by some people's reports of degradation after playing around with 1.35-1.4v, although since all of them delidded, I'll blame that first. Right now, my known good for 4.8GHz is 1.34v, which in adaptive mode means 1.45v if an AVX instruction sneaks in. I'm going to see if I can get closer to 1.3v by reducing uncore and playing with the more obscure BIOS settings.

With the 1207 BIOS, XTU crashed after 40 minutes, but yesterday I completed 1hr. I expect XTU to fail eventually with such a low voltage, so either it was a good run, or the 1405 BIOS helped a bit.



Didn't get anything after trying lower uncore ratios and playing with various settings. 4.8GHz isn't worth the 2.5% performance gain- DDR 2133 versus 1600 will show a larger difference than that I think. 4.8 yields a whole 1.25 fps gain in Planetside 2. Although, 4.7GHz is definitely 1.24x faster than stock- after finding CPU-limited areas within the game, I alt-tabbed out to the XTU to set core and cache ratios back and forth between 39x/39x and 47x/45x, and if I saw say 55fps at 39x, then 47x would yield 65fps- almost perfect performance scaling with the CPU frequency.

I probably said before that Firefall would benefit similarly, but in the situations where I saw low FPS (that is, 40's with dips to high 20's), I did not see any difference while switching between ratios. Additionally, the XTU indicated that CPU speed was all over the place, rather than staying at turbo. This means either the GPU is the bottleneck, or the game needs code improvements.

 

[freeboy]

did Dabve's OC guide ever get released?
Dave man whats up?

 

[EarthDog]

While you are waiting...

http://www.overclockers.com/3step-guide-to-overclock-intel-haswell

... some things need updated, but, you will get the general idea at least.

 

[freeboy]

I like that, much simpler , not better , than sin's guide.. I read a lot of this stuff... Seems after you get a good clock dialing it in is a lot of the secondary settings test and retest.. thanks for the heads up though

 

[cadaveca]

did Dabve's OC guide ever get released?
Dave man whats up?

http://www.techpowerup.com/reviews/Intel/Haswell_OC_Guide/

 

[MxPhenom 216]

http://www.techpowerup.com/reviews/Intel/Haswell_OC_Guide/

My god! its here!

 

[HammerON]

Thanks Dave!!!
Can't wait until I get home to read through it

 

[EarthDog]

Thanks Dave! Had a quick read through, and it is well done!