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Complete Overclocking Guide: Sandy Bridge & Ivy Bridge | *ASRock Edition* - Page 686

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post #6851 of 9531
Quote:
Originally Posted by HyperMatrix View Post

The best test of reliability, I've found, is video encoding. Encode a video using a codec at max CPU usage. Set it to the max/slowest possible setting. Let it work for a couple hours. If it doesn't crash/fail, you're good to go. I've found OC's that run 24/7 and game without *apparent* issues come back and fail on video encoding.
Never thought about that! I'm going to give it a try later on just to make sure I'm stable.

Edit: What video encoder do you use? I have never tried it before, so I am kind of confused on how I should go about trying it.
Edited by ZeVo - 8/2/13 at 12:36pm
post #6852 of 9531
Quote:
Originally Posted by impingu1984 View Post

The offset should be set to 0.005v (based on this guide anyway). This is added to (or subtracted if using negative offset) from the Vcore at idle and under load. What you really want to do just add voltage to turbo and this done by changing the "Additional Turbo Voltage" which allows the cpu more voltage under load, for this reason your really wouldn't want a negative turbo voltage offset.

If you follow the guide you set the Offset to +0.005v and turbo to +0.004v, this restricts the Vcore under load which can be reduced further using a negative offset, but that may cost you stability at idle as it would lower the idle vcore too. Then start working up the cpu multiplier. If you need additional volts go up a notch on the turbo volts until your stable.

This is how to increase voltage under load, not decrease voltage under load which was my question. There's no negative offset for turbo voltage, unfortunately.

I played around a bit and the best way was to set LLC to level 4, set voltage offset to +0.015v and turbo to +0.030v. This gives me idle at 1.000v and 4.6 under load at 1.320v, which is the lowest stable voltage I can reach. I could instead use LLC3 with turbo at +0.004v but that gives me 1.345v which is too high.
post #6853 of 9531
Quote:
Originally Posted by ZeVo View Post

Never thought about that! I'm going to give it a try later on just to make sure I'm stable.

Edit: What video encoder do you use? I have never tried it before, so I am kind of confused on how I should go about trying it.

I would convert 1440p game capture video with VirtualDub before uploading to YouTube. I would convert a lossless video format to H.264. Any video encoding/conversion that has your CPU going at 100% will suffice for the test. Encoding has no error correction/do-over. Once it notices something is even slightly off, the encoding process fails. Depending on how stable or unstable the OC is, it can take different amounts of time before it crashes.
post #6854 of 9531
Awesome I'll try it out later. Thanks a lot!

I'm confused on one thing though. So, my CPU temps spike up when I'm idling. Doing nothing, not opening any programs, just staring at my monitor, temps are in the 30s. As soon as I open a program up, it shoots to 40-50C. Is this normal and is it some feature implemented in IB or is something seriously wrong here?

Another issue I have is my temps in Real Temp TI when doing a P95 run seem to get stuck. I've ran the tests three times, all with different settings in P95, some more intense than others, but still 5-10 minutes in my temps are reported 81-87-85-78. It goes no higher even though when running IBT a couple of months ago got me 90C+, the temps are stuck at 87C max.

Sorry if that is worded very poorly. I'll get some pics if it wasn't clear.
post #6855 of 9531
Quote:
Originally Posted by Xenofell View Post

This is how to increase voltage under load, not decrease voltage under load which was my question. There's no negative offset for turbo voltage, unfortunately.

I played around a bit and the best way was to set LLC to level 4, set voltage offset to +0.015v and turbo to +0.030v. This gives me idle at 1.000v and 4.6 under load at 1.320v, which is the lowest stable voltage I can reach. I could instead use LLC3 with turbo at +0.004v but that gives me 1.345v which is too high.

Which ever offset you have set say +0.005, this will give you an idle and full load vcore based off the VID. Offset will Increase/decrease both your idle and full load vcore depending on what its set to.

You will have a lower idle and full load vcore with a +0.005 offset then a +0.010 offset. A -0.010 offset will have a lower idle and full load vcore then the +0.005.

Additional turbo voltage is in addition to the full load vcore provided by the current offset. Even when using a negative offset, additional turbo voltage still increases the full load vcore.

I'm using a -0.010 offset and a +0.078 turbo. A -0.010 offset by itself would provide my CPU with roughly 1.266v at full load. I wanted my offset low because my CPU now idles close to stock at .978.

Obviously 1.266v at full load is not enough to stabilize 4.6ghz so i have added +0.078v to the full load vcore provided by my -0.010 offset which give me roughly 1.344 at full load. (1.266 + .078v = 1.344v)

Does that make sense?


Unless your not stable at a lower offset, you could decrease you offset to a +0.005 or lower, run a lower idle vcore then 1.00v with your +0.015 offset, then just increase additional turbo voltage to stabilize your full load.
Edited by Lucky 23 - 8/2/13 at 5:32pm
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post #6856 of 9531
some how i can't get the 4.7 stable if i add more voltage its get too hot. I just lapped my CPu today. by tomorrow I may delid it. here is how my temp looks like i7 3770k get's LapPeD
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post #6857 of 9531
Quote:
Originally Posted by skyn3t View Post

some how i can't get the 4.7 stable if i add more voltage its get too hot. I just lapped my CPu today. by tomorrow I may delid it. here is how my temp looks like i7 3770k get's LapPeD

It looks like 4.6 might be the limit of your CPU chip. If the temps get to hot when increasing voltage at 4.7GHz, then you might have to settle for 4.6. I tried to get mine to run at 4.8 but had the same issue, I was literally hitting 110 degrees when running prime so I had to settle for 4.7. No worries 100MHz won't make much of a difference if we're talking about real world experience.

What I'm currently thinking about is how much of a difference a custom water cooling loop would make compared to my 1st generation H100. Maybe with a custom loop I can get 5GHz lol, but the voltage would be crazy.
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post #6858 of 9531
Quote:
Originally Posted by BeastRider View Post

It looks like 4.6 might be the limit of your CPU chip. If the temps get to hot when increasing voltage at 4.7GHz, then you might have to settle for 4.6. I tried to get mine to run at 4.8 but had the same issue, I was literally hitting 110 degrees when running prime so I had to settle for 4.7. No worries 100MHz won't make much of a difference if we're talking about real world experience.

What I'm currently thinking about is how much of a difference a custom water cooling loop would make compared to my 1st generation H100. Maybe with a custom loop I can get 5GHz lol, but the voltage would be crazy.

check this out than smile.gif I think I'm mad today.

I had to spoiler it. biggrin.gif
Guide - i7 3770k get's LapPeD & DeliddeD.: Spoiler! (Click to show)
I just want to share this since I lapped my old fella 3570K 4.7 @ 1.34v temp's dropped very much top was 65 under heave load smile.gif in my loop. I decide to follow the same path for my new 3770k biggrin.gif

Source

I have seen many video out there using a bunch of sand papers with various grid. and ppl making video part 1 and part 2 to finish the work. I did it in half time and it does worked very well for me. you just need to do it right not just slap the CPU in the sand paper and go back and forth yessir.gif LOL.

Here is the material list .

CPU biggrin.gif
Blue Tape
skyn3t logo rolleyes.gif
Arcticlean 1 & 2
Brasso silver polish
100% cotton rag. "old shirt"
Flat surface like , Glass table, mirror or even the glass from the photo frame with you picture when you was a baby running naked tongue.gif
Sand paper grit 180
Sand paper grit 220
Sand paper grit 440


Part I
Material forgot to take pics from my sand papers sorry tongue.gif






Preparation : I just come out with this idea, just to be sure none of the sand paper and the copper dust won't get into the small chip in the back of the CPU. "Precautions"

tape the back of CPU make a clean cut like it show below


fold the edge's like so.


Now is it protectec thumb.gif


Now is it protectec thumb.gif


Draw a two way arrow, following the DIE direction.



Part II 180 Grit
Time to work easy not too much pressure only hold it down let your arm sit a bit on it and back :yessir and forth : 180 Grit
12 section of 50 sanding down+ total 600 times back and forth.
Alwasy follow the arrow












After 600 pass sanding on 180 grit. The 180 grit won't scratch too much deep, you just need to stay in the same lane all the time "don't clean the sand paper dust let it be" remember to work easy. this is the result a got.after 1400 pass blinksmiley.gif


Part III 220 grit

I wrote "A" and "B" to the arrow so just to no get lost wink.gif




result after 1000 pass with 220 grit, just to smooth the 180 grint and work very easy on the flattering surface.


Part III 440 grit

This is how I did mine you may disagree with it but I found it way better than just use the dry 440 grit till you smooth it out on almost mirror finish.

The first 400 pass It was drye sand paper.
After 400 passI put two drops of "ArticClean" in the sand paper, pic below show different thing tongue.gif. I was going to drop and a sprayed the thing a quick paper towel to fix the mess.


here is the result after 1000 with two drops of "articClean" pass with 440 grit. total pass 1400 blinksmiley.gif




Part III Polishing

Brasso Silver polish
100% Cotton rag
Glass surface.

here you work until you get the result you want, Polishing part is optional but a very clean copper surface polished does look way better. wink.gif








Final part testing temp's

It may not give you the top temp drop but is does make difference. Few "C" drop's is always welcome
Thermal paste used IC Dimond carat 7, This is the best thermal compound I have used for years no cure time temp's drops right after application and test.

skyn3t
08/02/13

3770k
4.7Ghz @ 1.312
TB Volt +0.020
DRAM 1600Mhz 9-9-9-24-2 @ 1.5v
Offset +0.070

Max tem on IBT and Wprime
78 - 87 - 85 - 82

Max Tem on wPrime
71 - 76 - 73 - 73

After lapped
3770k
4.7Ghz @ 1.312
TB Volt +0.020
DRAM 1600Mhz 9-9-9-24-2 @ 1.5v
Offset +0.070

Max tem on IBT
75 - 83 - 82 - 79

Max Tem on wPrime
67 - 68 - 66 - 67

IBT Before


IBT After


Linx before


Linx after


wPrime before


wprime after


I'm still working in my voltages and temp's

PS: everyone has a different way to work so this is mine hope you guys like it.
thumb.gif

Now Is Delid time, I think I'm mad today,rolleyes.gif

Tools list
skyn3t logo tongue.gif
hammer
CPU
Tiger wood - Why used tiger wood? have a look here and you will know how hard this wood is. since I work with wood we have tons the shop.
WOOD SPECIES (Hardest to Softest) chart



I had to use bamboo Dish plate holder it is about 1/16" of a inch tick to lift up the first knock down wood peace.
so this way the IHS CPU can stay firm the the first peace wood like show in the picture below and the PCB stay on top in the knock down peace wood. I cablled It t" knock down" is because I going to use that peace of wood to hit with the hammed and remove the IHS out biggrin.gif


different angle just to have idea what I'm talk about.


It toke me tree hit to remove it, it is very easy and 100% fool proof tha you not going to damage the PCB and trash the CPU after using razor blade. a lot people are using different tolls to remove the IHS with the same method. I was afraid to put my CPU in the Vise Clamp.


wheee.gif


wheee.gif






Look how shine the DIE is smile.gif can you see my camera lens ? tongue.gif






Now, are you serious Intel? How much crap you put under the IHS LOL , the money you safe in the thermal paste you used in the GLU to hold the IHS in place. lachen.gif




Hey this is the temp after the delid process.
Thermal paste used on DIE and IHS is
IC Diamond Carat 7

wPrime before Lapped



wPrime After Lapped


wPrime after delid biggrin.gif

hope you guys like it
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Black Hawk
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SAMSUNG 830 128GB raiD 0 rx 360 rx240 rx240 
CoolingCoolingCoolingCooling
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CoolingCoolingOSMonitor
Bitspower compression fittings koolance CPU 370 Windows 10 Pro Acer XB271HU ‑ 27" 
KeyboardPowerCaseMouse
Quick fire TK EVGA 1300g2 Corsair 800D MoDeD G502 
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post #6859 of 9531
Ok so something is going on with my CPU. I had it at 4.5 stable with only +0.027 turbo voltage, but I'm at +0.047 (I think) now and I'm my second worker is failing within 30 minutes or so. My settings are exactly the same from the guide. I'm also using LLC. Voltage is at 1.240 now and temps are in the high 70s to mid 80s.

Any tips or should I just keep pumping more voltage until I'm stable?
post #6860 of 9531
Quote:
Originally Posted by ZeVo View Post

Ok so something is going on with my CPU. I had it at 4.5 stable with only +0.027 turbo voltage, but I'm at +0.047 (I think) now and I'm my second worker is failing within 30 minutes or so. My settings are exactly the same from the guide. I'm also using LLC. Voltage is at 1.240 now and temps are in the high 70s to mid 80s.

Any tips or should I just keep pumping more voltage until I'm stable?

Those temps are pretty high for 1.24v, those are my temps and I'm at 1.376v. Might have to check if thermal paste was applied correctly. If it is then maybe that's just your chip's limit, it's safe to increase voltage up to around 1.4v but with your temps you would hit a wall way before 1.4v, just keep increasing the turbo core 1 tick at a time until you don't have any issues.
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