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Old 02-06-10, 03:54 PM   #313
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Default Re: Core i7 Overclocking thread

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Originally Posted by Dr.Nick View Post
Glad to see you got the upgrades going. My guess is that it needs a little qpi voltage if you are running it at the default 1.2v. It will probably help with getting your ram to run at 1T too(it should not be an issue with only three sticks).
Personally I like to have HT enabled and if you are using prime to stress test switch to intel burn test or occt. They will reveal weak oc's much quicker and easier
All my voltages are in my post above if you want to try them out
Cheers man. On this mobo that qpi thing is called uncore/VTT or something, and it is at 1.34v. It's the qpi multiplier that's at the lowest setting . I've always found Prime95 shows weaknesses up faster. I've tried OCCT though and it's good, I just prefer P95. With HT enabled I couldn't get it stable without 1.35v and my cooler can't hack it. It hit 90*C so I stopped it. It's a good cooler overall, but once you cross a point the temps go up pretty quickly.
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Old 02-06-10, 04:04 PM   #314
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Default Re: Core i7 Overclocking thread

My mistake, it's called QPI/Vtt voltage..


Last edited by Revs; 09-06-11 at 10:49 AM.
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Old 02-06-10, 05:16 PM   #315
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Default Re: Core i7 Overclocking thread

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Originally Posted by slaWter View Post
Nice OC Revs! Man those D0s
Hope Gulftown will overclock just as good!
Being 32mm, I would hope so.
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Old 02-06-10, 07:34 PM   #316
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Default Re: Core i7 Overclocking thread

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Originally Posted by Revs View Post
Cheers man. On this mobo that qpi thing is called uncore/VTT or something, and it is at 1.34v. It's the qpi multiplier that's at the lowest setting . I've always found Prime95 shows weaknesses up faster. I've tried OCCT though and it's good, I just prefer P95. With HT enabled I couldn't get it stable without 1.35v and my cooler can't hack it. It hit 90*C so I stopped it. It's a good cooler overall, but once you cross a point the temps go up pretty quickly.

Everybody likes to give that setting their own name for some reason lol; on mine its qpi/dram core. But most of these guides on the web were meant for the C0 cores and use lots of voltage which can actually hinder D0 overclocking. Have you tried leaving everything on default and just playing with a low vcore/qpi? I freak out even getting close to 70c.
I like prime too but I notice ibt/occt make my cpu run a few degrees warmer and seem to make it crap out faster if its going to
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Old 02-06-10, 08:19 PM   #317
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Default Re: Core i7 Overclocking thread

I'm deffo on the limit with the vCore, but the rest I'm gonna have a play with tomorrow. I just set everything a little high to save confusion while setting the CPU up. Gonna try getting that 1T back, too
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Old 02-06-10, 11:28 PM   #318
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Default Re: Core i7 Overclocking thread

some settings from the gigabyte forums for 3.6

Advanced CPU Features:
CPU Clock Ratio ................................ [19x]
Intel(R) Turbo Boost Tech .................. [Enabled]
CPU Cores Enabled ............................ [All]
CPU Multi Threading .......................... [Enabled]
CPU Enhanced Halt (C1E) ................... [Disabled]
C3/C6/C7 State Support .................... [Disabled]
CPU Thermal Monitor ......................... [Enabled]
CPU EIST Function ............................ [Disabled]
Virtualization Technology ................... [Enabled] << Disabled if you do not use Vmware or Virtual PC Programs
Bi-Directional PROCHOT ..................... [Enabled]


Uncore & QPI Features:
QPI Link Speed .............................. x36
Uncore Frequency .......................... 16-18 (Always 2x memory Multi or 2x +1, 2x +2, ect)
Isonchronous Frequency ..................[Enabled]


Standard Clock Control:
Base Clock (BCLK) Control ................ [Enabled]
BCLK Frequency (MHz) ..................... 190
PCI Express Frequency (MHz) ........... [100]

C.I.A.2 [Disabled]

Advanced Clock Control:
CPU Clock Drive ..............................[800mV]
PCI Express Clock Drive ................... [900mV]
CPU Clock Skew ............................. [0ps]
IOH Clock Skew ............................. [0ps]


Advanced DRAM Features:
Performance Enhance ...................... [Standard]
Extreme Memory Profile (X.M.P) ......... [Disabled]
System Memory Multiplier (SPD) ........ [8x ] = 1520Mhz
DRAM Timing Selectable (SPD) .......... [Manual]

Channel A + B + C

Channel A Timing Settings:
##Channel A Standard Timing Control##
CAS Latency Time ......................8
tRCD .......................................8
tRP .........................................8
tRAS .......................................24

Below values may be left in Auto if you like, generally this is fine. For those users who DO Set advanced timings manually, please see some of my thoughts and findings about these settings and rules here
XtremeSystems Forums - View Single Post - Gigabyte EX58-UD5/Extreme Discussion Thread


##Channel A Advanced Timing Control##
tRC ........................................ Auto (Should be = tRAS + tRP or above for stability)
tRRD ....................................... Auto
tWTR ...................................... Auto (Must be Write to Read Delay/Same Rank - (tWL + 4)
tWR ........................................ Auto 5-12 (Odd # values likely will fail)
tWTP ....................................... Auto (tWTP Must = tWR + tWL + 4)
tWL ........................................ Auto (tWL Must be CAS Latency -1)
tRFC ....................................... Auto
tRTP ....................................... Auto
tFAW ...................................... Auto
Command Rate (CMD) ................ 1

##Channel A Misc Timing Control##
Round Trip Latency ................... Auto



Advanced Voltage Control:

CPU
Load Line Calibration ................. [Disabled] << Enabled
CPU Vcore ............................... All up to your CPU, do not use Auto. Maybe 1.25-1.4
QPI/VTT Voltage 1.150v ............ 1.28-1.35+ (Some CPU's need 1.35-1.45+, and of course higher QPI above will need more here as well)
CPU PLL 1.800v ....................... 1.8-1.84

MCH/ICH
PCIE 1.500v ........................... 1.5
QPI PLL 1.100v ....................... 1.14-1.24 (Auto may work fine for you)
IOH Core 1.100v ..................... 1.14-1.24
ICH I/O 1.500v ....................... 1.5-1.58 (See below)
ICH Core 1.1v ........................ 1.14-1.2 (on the higher end if you have many drives or larger GFX Cards)

DRAM
DRAM Voltage 1.500v .............. 1.64-1.66 (Some BIOS 1.64 is about 1.63 so you may need 1.66)
DRAM Termination 0.750v [AUTO]
Ch-A Data VRef. 0.750v [AUTO]
Ch-B Data VRef. 0.750v [AUTO]
Ch-C Data VRef. 0.750v [AUTO]
Ch-A Address VRef. 0.750v [AUTO]
Ch-B Address VRef. 0.750v [AUTO]
Ch-C Address VRef. 0.750v [AUTO]

Last edited by bob saget; 04-10-10 at 11:10 PM.
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Old 02-07-10, 08:17 AM   #319
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Default Re: Core i7 Overclocking thread

Cheers bob, that's handy
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Old 02-07-10, 10:03 AM   #320
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Default Re: Core i7 Overclocking thread

The 1T setting seems stable now. Just had a go with HT enabled at 4.0Ghz and it was fine, but it does add about 10*C to the temps with no real gain for gaming, so I'm gonna stick with no HT @ 4.2Ghz (200x21@1.3v) as my 24/7 clock. 8-8-7-20 1T timings.

Had a final tweak with the timings and lowered a few voltages. QPI now at 1.295v and running sweet. Job done!
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Old 02-07-10, 12:38 PM   #321
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Default Re: Core i7 Overclocking thread

Revs, Are you using the Dynamic vcore setting or just setting a standard vcore?
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Old 02-07-10, 03:15 PM   #322
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Default Re: Core i7 Overclocking thread

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Revs, Are you using the Dynamic vcore setting or just setting a standard vcore?
Hey man. I don't remember seeing a Dynamic vCore setting as such. Do you mean EIST and power saving stuff. If so, then no. Though I did have it on but it didn't seem to do anything with Turbo mode on.
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Old 02-08-10, 08:08 AM   #323
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Default Re: Core i7 Overclocking thread

There's a Dynamic Vcore option in the Advanced CPU Voltage Settings of the latest BIOS's.

To use it, set the Vcore voltage to "Normal" and then add or subtract the amount needed to reach your target Vcore. E.G. If you have your Vcore in BIOS set to 1.2750v. When I set the Vcore to "Normal", it is set to 1.2125v. Therefore, I set the "Dynamic Vcore Voltage" to +.0625v which results in my target voltage of 1.2750 = 1.2125v + .0625.

This also allows if you enable the power saving features C1E etc. it will drop your the voltage at idle unlike setting a default VCORE where it wont.
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Old 02-08-10, 12:09 PM   #324
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Default Re: Core i7 Overclocking thread

Ah, I see. I'll have another look when I get home. I've currently got the F7 BIOS that came with the board. I might need to update it to F8 or F9. Either way I'll look in to it. Cheers dude .

EDIT: Out of interest, do you have HT on? What are your temps like and what cooler do you have?
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