Intel Haswell Overclocking Clubhouse.

[petedread]

So far it is ok at 1.110v offset (no adaptive on gigabyte gaming board) but it's only been going for 1 hour.
Some weird things happening since updating to latest bios.
1, using offsets make it less stable.
2, any LLC other than standard makes it unstable.
3, the graphs that OCCT draws seem a bit inaccurate and OCCT, Hardware Monitor and CPU-z are reporting higher vcore than what's set in bios.

P.s I added 0.010 to the Vrin and the cache. Will take that back off the Vrin if it proves stable for a few hours and run OCCT again. I use OCCT because it crashes more than Aida64.

 

[vega22]

I was thinking about delidding did u just use normal paste and is that on fpu test? Im on manual voltage 1.20v temps 95-100c .

sorry dude, missed the thread

mine was like that at first too, i would say everyone with a haswell should do it tbh, the difference in temps is just so immense that it makes it worthwhile.

do not use normal paste unless you want to redo it every week or 10 days. that is what i had to do as i used a normal paste and it just baked around the week mark. liquid ultra now and the temps are better and staying the same, not climbing each day.

very jelly of a 45/45 on 1.2/1.1v

i bet you could drop it to 1.6vrin too and stay stable :thumb:

 

[LiveOrDie]

Should i be changing any other voltages other than the CPU turbo voltage I've been leaving the others on auto? I've just ordered some Coollaboratory Liquid Pro .

 

[petedread]

So OCCT was still running when I got up this morning @1.110v cache.
Just to be clear, CPU 4.5 @1.200v set in bios. 1.213v shows in CPU-z and HW. Standard LLC used, don't know why it shows higher.

 

[cadaveca]

So OCCT was still running when I got up this morning @1.110v cache.
Just to be clear, CPU 4.5 @1.200v set in bios. 1.213v shows in CPU-z and HW. Standard LLC used, don't know why it shows higher.

Dude...you really won the silicon lottery. Push for higher clocks!

I'd leave cache where it id now, and push the CPU multi up a couple of notches. ASUS's OC guide mentions that running CPU cache a couple of multis below CPU speed seems to be the most optimal in benchmarks.

 

[vega22]

i found keeping it about 200mhz behind the core was plenty but if i could of ran it the same i think i would

what i want to know pete is what you can get with 1.7 vccin, 1.3 core, 1.3 uncore

 

[LiveOrDie]

So OCCT was still running when I got up this morning @1.110v cache.
Just to be clear, CPU 4.5 @1.200v set in bios. 1.213v shows in CPU-z and HW. Standard LLC used, don't know why it shows higher.

Mine can do 4.5Ghz @ 1.2v but wasn't 100% stable, some days it would be fine playing hours on BF4 then one day it just restarted so i dropped it down to 4.4Ghz and it rock solid now, Do you think increasing the cache voltage would help? Also what memory speeds are you running i run mine @ 2400Mhz on all my Overclocks.

 

[petedread]

Mem speeds are 2666mhz xmp profile, they won't take any overclocking at all on my system with my limited ability. Definitely try a bit more cache volts. I've found that my OC is fine on bench tests but will crash in BF4 if I have the CPU volts on offset. I guess it doesn't help not having many bios controls on my board, otherwise I could probably fix that.

@cadaveca and marsey99. I'll try that now, leaving cache and just upping CPU multi. Going to go straight to 4.7ghz @1.250v and 1.7 vrin, which is called CPU VRIN EXTERNAL OVERIDE on my board, that must be your vccin?

 

[TheHunter]

set that VRIN external - SVID - Vccin @ 1.79V.
http://www.overclock.net/t/1401976/the-gigabyte-z87-haswell-overclocking-oc-guide/1450#post_20892669

I think you would need around the same cpuv as me for 4.7Ghz, well my 4.5Ghz needs "only" 1.18v.


btw; about SVID in booklet manual:
When overclocking, set this item to [Enabled]. Disabling this item would stop the processor from communicating with the external voltage regulator.


While in UEFI it says recommended [Disabled] when overclocking, and if I disable it it locks at 1.69V which is to low for 1.279v @ 4.7Ghz.. I need min 1.78v ideal 1.80v or higher cpu voltage ~1.29v and its still kinda unpredictable.

 

[LiveOrDie]

Mem speeds are 2666mhz xmp profile, they won't take any overclocking at all on my system with my limited ability. Definitely try a bit more cache volts. I've found that my OC is fine on bench tests but will crash in BF4 if I have the CPU volts on offset. I guess it doesn't help not having many bios controls on my board, otherwise I could probably fix that.

@cadaveca and marsey99. I'll try that now, leaving cache and just upping CPU multi. Going to go straight to 4.7ghz @1.250v and 1.7 vrin, which is called CPU VRIN EXTERNAL OVERIDE on my board, that must be your vccin?

I have Cache on auto should i set the adaptive to 1.110 ? or use manual?

Well 1.110v on adaptive crashed my system after loading into a game, Shouldn't this voltage match the cpu main voltage?

 

[TheHunter]

^
No dont match it.

If 1.11v crashes then try 1.12v or 1.13v adaptive..

 

[LiveOrDie]

So i de-lidded my CPU and now when i do a FPU stress test my temps don't go past 75c this is with a ambient temp of 30c.

 

[vega22]

temps are great with a good tim aint they

 

[LiveOrDie]

temps are great with a good tim aint they

Sure are even know they paste wasn't rock hard on the die some was still damp it just didn't do the job that Liquid Pro does.

 

[Shou Miko]

do anyone have a good reason why CPU-Z and Aida64 goes crazy with 1.280V on my i5-4670k running offset or adaptive mode even in - like 0.020 i can get it down to like 1.200V max and i can boot and stress test at 1.120V @ 4ghz just fine running "Fully Manual Mode" ?

 

[TheHunter]

By AVX it uses 0.07 -0.09v more.. Ie 1.20v will be yeah 1.28v.

If you're gonna test such apps use fixed voltage.



Speaking of stability, latest Asus 1602 bios is a bit so so..

But I think I found one ratio between core and cache, could be a big coincidence though.. 4.6ghz @ 1.234v and cache 1.135 - 1.145v wasn't stable, but when I set 4.6Ghz @ 1.230v and cache x42 @ 1.140v it passed fine. Its like it needs at least ~ 0.09v between cpu and cache to work properly. Anyone else noticed this?


I was ok at 4.7Ghz @ 1.282v and cache 43x @ around 1.147v , but lately it started to act weird, actually since bios v1602.
Its stable for a couple of days, but then bsod's in something like Resident Evil5 dx9 low reso 720p variable benchmark - 3rd test.. I tweaked and tweaked and again few days later same bsod or it started overheat more 5-7C.. Its like build-in VRM leaked voltage or heat.

I have disabled CPU Integrated VR fault management (default auto), according to uefi Asus recommends disabling it when OC..

Disable this item to prevent tripping the Fully Integrated Voltage Regulator when doing over-voltage. We recommend you to disable this item when overclocking.

 

[LiveOrDie]

do anyone have a good reason why CPU-Z and Aida64 goes crazy with 1.280V on my i5-4670k running offset or adaptive mode even in - like 0.020 i can get it down to like 1.200V max and i can boot and stress test at 1.120V @ 4ghz just fine running "Fully Manual Mode" ?

Try manual voltage don't use adaptive when stress testing as it can spike higher than you have set, Best to find your stable manual voltage then set it to adaptive after and let it be.

 

[Shou Miko]

I have disabled CPU Integrated VR fault management (default auto), according to uefi Asus recommends disabling it when OC..

where witten the Asus bios you find it?

Try manual voltage don't use adaptive when stress testing as it can spike higher than you have set, Best to find your stable manual voltage then set it to adaptive after and let it be.

well so if i can get it down to like 1.050V or something like then set it to adaptive would keep it there?

 

[TheHunter]

Its in AI tweaker tab, below DIGI+

Yes if you set total adaptive voltage at 1.050v it will be around that. It will go to 1.13v in heavy avx apps; x264 video codec has few spikes, but nothing like those burn-in tests.

About cache at adaptive it will use a little higher 0.02-0.03v at full stress (cinebench, etc) 1.140v >> 1.165v, check with aida64, hwinfo64, etc..

 

[LiveOrDie]

where witten the Asus bios you find it?



well so if i can get it down to like 1.050V or something like then set it to adaptive would keep it there?

Yes you only need to set the turbo adaptive voltage, after you find out what voltage is good for your chip.

 

[TheHunter]

Btw BSOD WMEA 0x124 can happen by unstable ram as well, its not just for cpu or cache.

I had 2200mhz for a while, CL9-11-10-27-1T, but lately around the time when I updated from 1504 to 1602 the system started to act funny, sometimes i would get bsod by boot or couldn't keep system stable like it was before..


I remembered about DRAM 4ACT WIN Time topic here in this thread and when I changed it from 32 to 40 and tRFC from 171 to 184 it stopped.

made a quick google search, not my bios pic

 

[freaksavior]

So at what point do you mess with the other voltages? Example with my i7 if I go any further than 4.4 on the 1.26 i'm pushing it crashes. I don't want to up the vcore that much more. What's next?

 

[MxPhenom 216]

@MxPhenom 216 the gigabyte bios does look nice but unless you get one of the OC boards you won't have as many bios features as the asus boards.

I already have the Asus Maximus VI Hero.

 

[TheHunter]

Here is a funny thing, lately Im stable and next day it can bsod. >_<


For example yesterday I was ok, but today when I ran LostPlanet 2 dx9 windowed 720p with jobthread 8 - fixed bench it crashed and reset my pc, Cinebench doesn't do that even though it stresses cpu to the max and uses around the same wattage..

-Cache x42 (tested from 1.135 - 1.147v) and std xmp memory 2133mhz

-Cpu 47x tested from 1.270v to 1.289v, most stable at ~1.278 -1.285v.



So anyway I set cpu vcore at 1.283v adaptive, lowered cache to 41x with 1.120v adaptive and yes it passed 2 runs in LostPlanet2, while a moment ago at 42x with 1.147v it bsod by most demanding part -- eats up 120-125W cpu, max in cinebench15 115w or so.

I tested further and lowered cpu vcore to 1.278v and yes it still passed.. So I think its definitely cache limiting my OC, 4.6ghz at 1.230v could run cache at 44x with 1.167v, ram 2200mhz no problem.

 

[cadaveca]

reset without BSOD is likely ram or CPU cache, so it sounds like you're looking at the right areas to tweak.