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Max Base Clock Strategy Guide

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kiel^cx
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Re:Max Base Clock Strategy Guide 2011/08/11 18:15:17 (permalink)
linuxrouter

kiel^cx
VIT is set to auto on my E760 which is 1.3v? and CPU multipllier is set to the lowest (15x) and i believe QI LINK is set to 4.8 GT/s per OP. Might it be QPI Compensation? i set it to less instead of middle 


Try a bit higher on VTT such as 1.35v. VTT is the voltage for the Uncore including the IMC and QPI link. QPI compensation at Less sometimes helps with higher bclk but not always. You might try setting to middle for now.

tried vtt on 1.35v and QPI compensation at Middle. instead of auto restart it freeze now



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linuxrouter
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Re:Max Base Clock Strategy Guide 2011/08/11 22:51:52 (permalink)
Try a lower VTT instead around 1.25v. Some processors are sensitive to higher VTT. Otherwise, can you post a BIOS template and I can take a look and see if another option can be tweaked to get a bit more on the bclk.
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kiel^cx
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Re:Max Base Clock Strategy Guide 2011/08/13 12:06:24 (permalink)
linuxrouter

Try a lower VTT instead around 1.25v. Some processors are sensitive to higher VTT. Otherwise, can you post a BIOS template and I can take a look and see if another option can be tweaked to get a bit more on the bclk.

this is my bios template..thank you!
 
 

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kiel^cx
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Re:Max Base Clock Strategy Guide 2011/08/15 13:10:04 (permalink)
what should i tweak?



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dsclark
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Re:Max Base Clock Strategy Guide 2011/08/27 20:14:56 (permalink)
Love the guide will attempt when I get off work, will use my moto zoom to maintain forum details and access so I am connected if anything goes wrong.
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dsclark
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Re:Max Base Clock Strategy Guide 2011/08/28 00:11:11 (permalink)
So how much core is too much core where do you stop, and call it a day.
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JDookie
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Re:Max Base Clock Strategy Guide 2011/08/28 05:39:53 (permalink)
dsclark

So how much core is too much core where do you stop, and call it a day.

If you're referring to Vcore, then the limit is usually the temps. Using an excessive amount of Vcore will create a ton of heat, and can cause instability just like using too little Vcore. It's all about a balance, and what works for *your* particular system.
 
I don't know anything about your system (a signature with system details would help) but most people usually stop around 1.4V. If you're on air, 1.4 will *probably* be your limit due to temps. If you're on water, you might be able to go a bit higher, again, depending on the temps. Keep in mind that you *shouldn't* need this much Vcore unless you're aiming for 4.4GHz+ overclocks.
 
Also keep in mind that it's not all just about Vcore. VTT also has a lot to do with how much Vcore you need. If you followed the guide correctly, you set up your base clock first, with the proper amount of VTT, and then moved on to increasing cpu speed and Vcore after.
 
If you need help, post a BIOS template and your full system specs, please.
post edited by jdookie - 2011/08/28 05:41:56

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dsclark
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Re:Max Base Clock Strategy Guide 2011/08/28 05:46:19 (permalink)
You can view my system on mods rigs, link under my avatar, and atm im sitting on 4.3 ghz. Yea I sent my last message from my tablet, so not the easiest to view this forum on it. I am refineing the bios template to post it on here.
 
 
Mother Board ( EVGA X58 Classified E-770 )
Bios ( 82 ) CPU ( 950 D0 )  
CPU Cooler ( Ek HF-Supreme )
Memory ( Corsair Dominator GT 2000 9 9 9 24 )
PSU ( Corsair AX1200) 
GPU ( GTX470SSC X 2 )
Drivers ( 280.26 ) 
Operating System ( Windows 7 64 Ultimate ) 

Frequency Control CPU Clock Ratio ( 21X ) 
CPU Host Frequency (Mhz) ( 205 ) 
MCH Strap ( Auto ) 
CPU Uncore Frequency (Mhz) ( 3255Mhz* { 16X } ) 
CPU Clock Skew ( 0 ps ) 
Spread Spectrum ( Disabled ) 
PCIE Frequency (Mhz) ( 102 ) 

Memory Feature
Memory Speed ( XMP Profile 1 )
 Memory Control Setting ( Enabled ) 
Memory Frequency ( 2520Mhz / 2:6 ) 
Channel Interleave Setting ( 6 Way ) 
Rank Interleave Setting ( 4 Way ) 
Memory Low Gap ( Auto ) 
tCL Setting ( 9 )
tRCD Setting ( 9 ) 
tRP Setting ( 9 ) 
tRAS Setting ( 24 ) 
tRFC Setting ( 88 ) 
Command Rate ( 2t ) 

Voltage Control 
EVGA VDroop Control ( With VDroop ) 
CPU VCore ( 1.425 ) 
CPU VTT Voltage ( +275 ) 
CPU PLL VCore ( 1.4250 ) 
**IOH PLL VCore ( 1.200 )  
DIMM Voltage ( 1.65 ) 
DIMM DQ Vref ( +0mV ) 
QPI PLL VCore ( 1.300 ) 
IOH VCore ( 1.200 ) 
IOH/ICH I/O Voltage ( 1.500 )  
**VTT PWM Frequency ( 610 KHZ ) 
**CPU PWM Frequency ( 1210 KHZ ) 
**CPU Impedance ( Less ) 
**QPI Signal Compensation ( Middle ) 
ICH VCore ( Auto ) 
 

CPU Feature
Intel SpeedStep ( Disabled ) 
Turbo Mode Function ( Disabled ) 
CxE Function ( Disabled ) 
Execute Disable Bit ( Disabled ) 
Virtualization Technology ( Disabled ) 
Intel HT Technology ( Enabled ) 
Active Processor Cores ( All ) 
QPI Control Settings ( Enabled ) 
QPI Link Fast Mode ( Enabled ) 
QPI Frequency Selection ( 4.800 GT/s ) 
OC Recorvery ( Enabled ) 
PnP/PCI    
PCI Express Maximum Payload Size ( 1024 )  
post edited by dsclark - 2011/08/28 05:56:15
#158
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Re:Max Base Clock Strategy Guide 2011/08/28 06:28:29 (permalink)
For starters, don't use the XMP Profile for your memory. In most cases, it will do nothing but cause issues. You can use the settings that it provided, but just put them in manually.
 
Second, the reason you're having to set your Vcore so high is because you're using VDroop, which isn't a bad thing, some people actually prefer it, but for now, let's turn it off. You can always come back and turn it on at a later date, but you need to find your stable overclock first. So, disable VDroop, and set Vcore to 1.38V for now. With VDroop enabled, you were *probably* somewhere around 1.365 under load. With VDroop disabled, and set to 1.38, it will probably go up to 1.40 under load. I don't think you will need this much for a 4.3GHz overclock, but you can always come back later and decrease it a bit.
 
Now, VTT. +275 sounds like a lot. What is your actual VTT voltage? You can find it in your BIOS under System Health, or in Windows with any of the monitoring programs like HW Monitor, or Eleet.
EDIT:
What is your actual memory frequency? Your template shows you using a 2:6 ratio, but that would put you at 1232Mhz. You should be using a 2:10 ratio, which would put you at 2053Mhz.
post edited by jdookie - 2011/08/28 06:38:57

i7 3770K @ 4.8GHz (Koolance CPU-380i water block)
Gigabyte Z77X-UP7
2 x 8GB Corsair Dominator Platinum C9 1866MHz
Dual 240GB Corsair Neutron GTX in RAID 0
EVGA GTX 780 Ti Classified K|NGP|N w/ EK water block
Corsair AX1200
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#159
dsclark
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Re:Max Base Clock Strategy Guide 2011/08/30 01:12:06 (permalink)
well thanks to this guide I got 4.4 easily, however going for 4.5 was a bit of a push decided to not go past 1.4875 on the vcore. with vtt at 1.46. I did try for a few minutes 22clk @ 205 blck but kept getting 124, 3b, 1d, 101, so I dropped it down to 21clk @ 215blck and still no joy. Although I was sorta rushed had a long day at work and not much time left to test and tweak my system.
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PnoT00
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Re:Max Base Clock Strategy Guide 2012/08/02 08:09:55 (permalink)
I'm on an E758 SLI with the latest BIOS and using the settings in the initial post am unable to get past 185 bclk.  I'm running the latest linX 0.6.4 and e-leet.  I've tried to increase the VTT up to +350mv and it still instantly crashes when adjusting the bclk above 184.
 
Any ideas?
 
EDIT: Looks like my RAM was holding me back so I manually set it to 9-9-9-24 @ 1.65 and am editing this @ 200 bclk.  I'm going to push some more and see where the limit is.
post edited by PnoT00 - 2012/08/02 13:07:47
#161
PhIlLy ChEeSe StEaK
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Re:Max Base Clock Strategy Guide 2015/07/10 19:22:47 (permalink)
I know this is old but, no one ever heard of a memory hole?
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