4.8ghz on 3770k

crazeconnolly said:
devrij, whats your bclk for 4.6 and multiplayer. Also do you use offset voltage?
Click to expand...

Just left bclk at 100, multi at 46, vcore response set to fast, and that's it. I only have 2x 4GB dimms of 1333MHz RAM though so it may just be putting less strain on the IMC. Keep in mind also that I don't have hyperthreading to drive. I'm using offset to keep power usage down, and because I'm not going for a crazy overclock, just something useable.
 
what do u mean vCore set to fast response?
did you say your voltage was Around 1.27? if so what offset did u use?
also did you touch cpu pll voltage and vccsa?

sorry for all the questions
 
Fast response just means high current frequency. It means the fets respond to load quicker but create more heat.
 
what option is that in the bios 8 pack?
also, one other thing i have questions about it the load line calibration. I have it set to ultra high i think. is that correct?
 
crazeconnolly said:
what do u mean vCore set to fast response?
did you say your voltage was Around 1.27? if so what offset did u use?
also did you touch cpu pll voltage and vccsa?

I think it was around +0.15V, and I haven't fiddled with PLL VTT etc as I'm not doing anything wild.

sorry for all the questions
Click to expand...

crazeconnolly said:
what option is that in the bios 8 pack?
also, one other thing i have questions about it the load line calibration. I have it set to ultra high i think. is that correct?
Click to expand...

On Gigabyte boards it's under the 3d power settings, no idea on the Asus boards.

LLC is just to compensate for vdroop under heavy load. Setting it really high will actually add voltage under load.
 
I changed some settings and ran a stability test for 4.6ghz
as follows:
LLC high
offset voltage +0.020 (voltage around 1.28)
Memory at 1333mhz and auto voltage
CPU pll voltage 1.50
fast response

temps were reduced and seemed to be stable.
 
crazeconnolly said:
I changed some settings and ran a stability test for 4.6ghz
as follows:
LLC high
offset voltage +0.020 (voltage around 1.28)
Memory at 1333mhz and auto voltage
CPU pll voltage 1.50
fast response

temps were reduced and seemed to be stable.
Click to expand...

Sounds like you had similar results then! I think most Ivy chips are happy at 4.6GHz, and it's all a steep climb from there.
 
BUMP

can we resurrect this post? lol

Few things to bring up about my 4.6 overclock before i proceed to 4.8ghz.

I have a voltage of 1.28 under full load on 4.6ghz (high llc)
cpu offset voltage +0.020
temps are around 60-70 degrees under load
I have the following other settings
cpu response: fast
cpu current capability: 140%
Memory divider 100 : 100 (dont know if this is right)
memory volts 1.5v
1600mhz
multiplier 45
bclk 100
cpu pll 1.6357
cpu pll overvoltage auto
all other settings to auto

is there anything else i need to disable or enable for a better overclock. like settings in cpu menu etc?

your help appreciated.

Chris
 
CPU PLL overvolting enabled often helps to gain a stable overclock.

Have you disabled spread spectrum. That needs disabling.
 
Spread spectrum is to elimnate EMI, Electro Magnetic Interferance. Which can Make your processor Frequncy spike from the Magnetic Wave lengths. EMI can affect the CPU Freq. kind of like a really quick rev up for your CPU frequncy. it will make it go from 4.6ghz to anything that will make your PC lock up. So if you are palgued by EMI then keep it on. but that's only in a very unusual circumstance.

Disable it, it can be bad for overclocking.
 
Hi 8 Pack

I checked for that setting and noticed that cpu spread spectrum option disapears when i have cpu power phase enabled. I have this set to extreme i think. Is this something i need enabled. when i disable this, the cpu spread spectrum option appears.

chris
 
The board is disabling then inline with power delivery. Carry on with clocking your system!!

Although do you not have optimized as an option here ?? I would use that.
 
sorry to jump into this thread but thought i'd join in rather than create another 3770 related topic.

I seem to have a decent chip, hitting 4.7GHz at 1.25v (which I believe I can go lower with still).

You mention tweaking the BLK to improve whole system performance in general and as such i'm currently trying 46x103 = 4735MHz. It does this at 1.248v on load with Prime95 and temps stay around 70-74 on all cores.

My motherboard isn't amazing as it's mITX so i'm limited with voltages and other options.

Any suggestions on what direction to take next, lower the multi and increase the BLK more (max I was thinking of was 105) or keep the BLK low and just increase the multi?

Update currently benching 46x104 but have had to up the voltages slightly, load is now 1.264

Memory is Samsung green at 1.5v 1040MHz 9-10-10-24 1T
 
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