Intel Haswell Overclocking Clubhouse.

[cadaveca]

The voltage is stock thru and thru. When I first got it, the CPU was running at 1.46v. Updated the BIOS and went down to what it is now. OneMoar sat there helping me with getting it to run as well as it does now.

You must understand that stock voltage is usually 1.0xx, not 1.4xx. This 1.4xx vastly exceeds what even Intel says stock voltage is, so there is either

a: some mis-communication on what voltages you are reading (understandable since this new Haswell platform is unlike any in the past)

b: a problem with your motherboard

C: a problem with your CPU.

1.46 is not a valid stock voltage, at all. So when people have questions about this, that is why.

 

[Toothless]

You must understand that stock voltage is usually 1.0xx, not 1.4xx. This 1.4xx vastly exceeds what even Intel says stock voltage is, so there is either

a: some mis-communication on what voltages you are reading (understandable since this new Haswell platform is unlike any in the past)

b: a problem with your motherboard

C: a problem with your CPU.

1.46 is not a valid stock voltage, at all. So when people have questions about this, that is why.

Well I'm sure opening Chrome and hitting 90c isn't a good thing. That's what I was getting over RealTemp and Speedfan. A BIOS update fixed that. (CPU-Z is where I get my voltage readings)

The BIOS was on version F3, so I had to bump it to F5, and only then was it "normal" voltages.

Also PM time.

 

[Kursah]

Wrong thread for your post.

This is for the 4000 series Intel CPUs based on Has well technology not the old Gulftown. Nice oc tho! I had a beastly i5 760 @ 4.0 before I went Haswell.

Edit. You should start your own thread to get assistance so we don't take this one off topic.

 

[fullinfusion]

My chilled water cooling system works quite well

 

[fullinfusion]

Hey guys to save me a crap pile of reading through this thread Id like to ask, what would cause cold boot BSOD?

More like windows boots up but a 1 min or so the rig will freeze and I need to hit the reset button.
Once rebooted there is no issues. What voltage should I look at raising?

Thanks in advance

 

[TheHunter]

Could be ram current issue, in DIGI+ maybe raise from stock 100% to 110 or 120%..

Or maybe input voltage too low or C-states issue >> do you have them enabled or at auto?


EDIT: what bsod code, 0x124 or 0x101 or even 0x7E / 0x7B?

 

[fullinfusion]

Could ram current issue, in DIGI+ maybe raise from stock 100% to 110 or 120%..

Or maybe input voltage too low or C-states issue >> do you have them enabled or at auto?


EDIT: what bsod code, 0x124 or 0x101 or even 0x7E / 0x7B?

I think the memory being set @ 1.63v might be the issue. I put it back upto 1.65v and will see what happens.

Also @TheHunter I didnt catch the code this time around... Memory is set to 110% and C-states are on auto but windows power option was set to max performance but I was using the low power setting in the bios.

 

[TheHunter]

I think the memory being set @ 1.63v might be the issue. I put it back upto 1.65v and will see what happens.

Also @TheHunter I didnt catch the code this time around... Memory is set to 110% and C-states are on auto but windows power option was set to max performance but I was using the low power setting in the bios.

Yeah it looks like its memory voltage then.

btw 1.65v won't hurt or raise temps, from what I saw its "ok" up to 1.70v.


When you say low power setting, you mean that EPU power saving mode? I saw its off by default.
Well this could cause it too, although I never tested it to see if it causes instability.


C-states @ auto are usually off, at least that's what I saw by my mobo and one HeroVI, Formula VI.

I let mine control with iRST, balanced C3, High perf. C0

 

[fullinfusion]

Yeah it looks like its memory voltage then.

btw 1.65v won't hurt or raise temps, from what I saw its "ok" up to 1.70v.


When you say low power setting, you mean that EPU power saving mode? I saw its off by default.
Well this could cause it too, although I never tested it to see if it causes instability.

I have a low power setting in the bios where I use offset as the low level clock of 800mhz and have a high power setting where it's a straight 1.1850 cpu voltage setting.

When benching I load the high level and when just surfing and such I take advantage of the low volts setting.

 

[TheHunter]

Ok, I just use balanced to take advantage of low freq/ low voltage and high perf. for full freq. and voltage.


btw about EPU,

I enabled it now and it also lowers SVID - input voltage when idle, 1.71v vs 1.79v.

 

[vega22]

without the bsod code we are just taking wild stabs in the dark dude.

my money would be ram, but^^^^

 

[fullinfusion]

The rig crashed the night before last when it was at idle. It was low power kernel the code said. I ended up leaving the same programs up and running last night and I woke to no issues at all. I ended up raising the input CPU voltage from 1.72 to 1.75 and I'm hoping that was the problem.

 

[TheHunter]

Yeah I think its both, ram voltage too low and input voltage too low for that kind of OC.

vccin 1.75 -1.77v should be ok up to ~1.28v if you use "max" LLC, asus recommends to use AUTO LLC now which is apparently highest anyway. If 1.77v still isn't enough then 1.79v for sure

 

[fullinfusion]

Yeah I think its both, ram voltage too low and input voltage too low for that kind of OC.

vccin 1.75 -1.77v should be ok up to ~1.28v if you use "max" LLC, asus recommends to use AUTO LLC now which is apparently highest anyway. If 1.77v still isn't enough then 1.79v for sure

Thanks man, yeah LLC has been on auto forever. I'll see tomorrow if the rig flakes out just after boot up. I totally forgot that this bios weirds out after half a dozen blue screens and I need to re-flash to bring it back to 100%... Something I totally blanked out on. The bios froze up the other day and the last time that happened the system wasn't stable at all until I flashed the bios again.. Reflash time.

 

[Toothless]

Sooo question. What is the normal voltage for the 4790k to run at on 4ghz?

 

[cadaveca]

Sooo question. What is the normal voltage for the 4790k to run at on 4ghz?

say around 1.1V to 1.15V

 

[Toothless]

say around 1.1V to 1.15V

Well my BIOS goof'd and it was running at 1.071v and now it doesn't turbo correctly.

 

[fullinfusion]

Well my BIOS goof'd and it was running at 1.071v and now it doesn't turbo correctly.

Then clear the CMOS, load optimized settings tab, click enter, reboot and problem solved

 

[LagunaX]

Haven't been here for a while, but I've changed my Haswell Stress Testing slightly.

I use 2 tests now, x264 Stability Test V2 or the Asus ROG RealBench Stress Test:

A) x264 Stability Test V2:
https://mega.co.nz/#!3tAGnAqZ!QbCz2r1fG0WjM8DgGYeExngGypaHftAzPUgTSn2kAdk
I run either 8 loops (1 hour) or 16 loops (2 hours) 64 bit with 16 threads.

1) Extract the zip file.
2) Open this folder twice: x264 Stability Test V2
3) Do not open the test file, just double click on either:
x264 Stability Test (32bit - log) for 32 bit systems
or
x264 Stability Test (64bit - log) for 64 bit systems
4) The +log .bat files are if you want to name a log file to be saved, - is just to run the test without a log file.

B) Asus ROG RealBench Stress Test:
http://rog.asus.com/file/?download=RealBench_v2.41.zip
Pick the Stress test (default is benchmark), input your RAM, and then select for an hour or 2.

It doesn't say anything if you pass, but will let you know in the bottom left corner if you fail.
The Asus ROG RealBench Stress Test is just as stressful and runs slightly higher load temps, maybe a tad more stressful as it might multitask stress a bit more than x264 V2.

Enjoy!

 

[TheHunter]

Well after all this time I can safely say bios 2103 is bad, one earlier I think beta 2004 was a lot better.

I have to use stock ran 2133mhz and higher cache voltage to keep it stable. Before cache 4.2ghz 1.145v, now 1.17v.. (or auto, which makes total ~ 1.21v by full load)

Also noticed asus changed ram timings - made them more loose and still can't keep my ram OC @ 2400mhz like before,. This is @ 4.7ghz, cache 4.2ghz and no go, even at 4.1ghz..

 

[v12dock]

45c @ 1.305v 4.5Ghz

Delid + liquid pro+ lapped heatspreader

 

[fullinfusion]

45c @ 1.305v 4.5Ghz

Delid + liquid pro+ lapped heatspreader

Nice job, what grit of paper did ya finish it off with?

 

[v12dock]

Nice job, what grit of paper did ya finish it off with?

2000 and polishing compound

 

[johnspack]

Still trying to figure this out... I built a friend a system with a 4690k and a hyper evo 212. Eventually he'll want to oc, and he'll get me to do it. How much can I expect with this setup with a well ventilated case?
Don't have a haswell myself, so I don't have a lot of experience. Safe to leave it at 4ghz? Could it go higher without water/lapping ect? I though these things would do 4.5+ on air but I've been told not.
Should I have just gotten a much cheaper haswell for him?

 

[cadaveca]

set 1.325 vCore and 1.95V vInput, and see what it gets. Just watch temps. IF they are high, lower both voltages until in acceptable range with highest multi possible. Some chips will do quite well, so don't expect high clocks, but try for it anyway.

As has been mentioned before in the thread, silicon lottery is a site that sells binned chips, and they do fairly well at providing accurate clocks for your dollar, so look at what they bin at, try that.