Core i7 Overclocking by Batch #

[MisterMagoo]

Exactly. Which is why we shouldn't mislead people with confusing voltages ^^
On the GA-EX58 series you have a vdroop of around 0,03V, plus they usually undervolt. Setting 1,3000V in bios results in 1,248V load on my Extreme.
Now on the DFI (if the CPU-Z reading is even accurate), I get 1,31V loaded at 1,3000V bios setting when Vdroop is disabled. Quite the difference...

That is quite the difference. What do you suggest then? Bios, CPUz, or load?

I will update the list as soon as we get this panned out. I will also add VTT and any other columns that we deem necessary.

[loonym]

3839A523
lp-ut, 3x2g 1333 gskill pk, TRUE push/pull
19x208

Genie BIOS Setting

CPU Feature
Set VR Current Limit Max: Disabled
Thermal Management Control: Disabled
EIST Function: Enabled
CxE Function: Auto
Execute Disable Bit: Enabled
Virtualization Technology: Disabled


***** Logical Processor Setting *****
Intel HT Technology: Enabled
Active Processor Cores: All

DRAM Timing
Memory Control Setting: AUTO
Memory LowGap: 1536M

DRAM Command Rate: AUTO
CAS Latency Time (tCL): 8
RAS# to CAS# Delay (tRCD): 9
RAS# Precharge (tRP): 8
Precharge Delay (tRAS): 20
REF to ACT Delay (tRFC): AUTO
Write to PRE Delay (tWR): AUTO
Rank Write to Read (tWTR): AUTO
ACT to ACT Delay (tRRD): AUTO
Row Cycle Time (tRC): AUTO
Read CAS# Precharge (tRTP): AUTO
Four ACT WIN Time (tFAW): AUTO

Voltage Setting
O.C. Shut Down Free: Enable O.C.S.D.F
CPU VID Control: 1.36875v
CPU VID Special Add Limit: Enabled
CPU VID Special Add: +101.65v
Vcore Droop Control: Enabled
DRAM Bus Voltage: 1.620v
DRAM PWM Switch Frequency: Nominal
DRAM PWM Phase Control: 2 Phase Operation
CPU VTT Special Add: +.0375v
CPU VTT Voltage: 1.37v
VTT PWM Switch Frequency: Nominal
VTT PWM Phase Control: 2 Phase Operation

CPU PLL Voltage: 1.85v
IOH/ICH 1.1V Voltage: 1.19v
IOH Analog Voltage: 1.15v
ICH 1.5 Voltage: 1.5v
ICH 1.05V Voltage: 1.05v
DIMM 1/2 DQ/DQSTB Bus VREF: -00.0%
DIMM 3/4 DQ/DQSTB Bus VREF: -00.0%
DIMM 5/6 DQ/DQSTB Bus VREF: -00.0%
ADDR/CMD VREF Control: Disabled
x DIMM 1/2 ADDR/CMD Bus VREF: 110
x DIMM 3/4 ADDR/CMD Bus VREF: 110
x DIMM 5/6 ADDR/CMD Bus VREF: 110
CPU QPI Drive Strength: Normal
IOH QPI Drive Strength: Normal

Exit Setup Shut down: Mode 2
O.C. Fail Retry Counter: Enabled
O.C. Fail CMOS Reload: Disabled

PPM Function: Enabled
Turbo Mode Function: Disabled
1 core Max Turbo Ratio: 22x
2 core Max Turbo Ratio: 21x
3 core Max Turbo Ratio: 21x
4 core Max Turbo Ratio: 21x
CPU Non-Turbo Clock Ratio: 19x

* BCLK/UCLK/QPI Controller Settings *
QPI Control Settings: Enabled
QPI Link Fast Mode: Enabled
QPI Frequency: AUTO
CPU Base Clock (BCLK): 208 Mhz
Boot Up CPU Base Clock: AUTO
PCIE Clock: 101 Mhz
DRAM Frequency: BCLK*08 Mhz
UnCore Frequency: BCLK*16 Mhz

CPU Spread Spectrum: Disabled
PCIE Spread Spectrum: Disabled

[GenTarkin]

Here is my stable settings, does WCG stable for 9hrs and almost 1hr on all cores count? =) (different tasks)
Thats 3843mhz 183x21

[jcool]

That is quite the difference. What do you suggest then? Bios, CPUz, or load?

I will update the list as soon as we get this panned out. I will also add VTT and any other columns that we deem necessary.

I strongly suggest every user reports what the load Vcore was during testing to the best of his knowledge, that usually means CPU-Z, Everest etc while running the tests. Now I have never seen such an "overreporting" problem as on the DFI x58, so usually CPU-Z and Everest should provide accurate numbers.

Load Vcore is the value usually used for comparisons sake, because what you set in bios can be anything from higher to lower than real (most boards undervolt, some overvolt, few are spot-on), also most boards have a substantial vdroop between idle and load. Finally, on my DFI, the idle Vcore is actually a lot lower than load because EIST is working properly with manual Vcore as opposed to Asus and GB mobos, so the only choice that makes sense is load Vcore really.

DMM measured > readout ofc but not many people have the eopportunity to read the real voltages with a DMM, even around here.

[GenTarkin]

I would love to do a DMM Readout, but do not know where on my mobo will show my my vcore =P its a Gigabyte EX58-UD3R

[chance]

Batch Number: 3838B079
CPU Freq.: 3800MHZ
QPI: 7218MT/s
Multi: 19X
LOAD vcore: 1.19v
CPU VTT: 1.25v
Hyperthreading: ON
LOAD core temps: 60/68/74
Cooling: NOCTUA U12P

[MisterMagoo]

Ok, so here is a little template for you all to help me when adding results to the list. Please use this from now on accompanied with a screenshot this will help out tremendously.

Batch Number:
CPU Freq.:
QPI:
Multi:
LOAD vcore:
CPU VTT:
Hyperthreading:
LOAD core temps:
Cooling:

Just copy, paste, and enter you. Thanks.

I will include this with ever update as well so you dont have to go searching.

[GenTarkin]

Batch Number: 3836B043
CPU Freq.: 3843
QPI: 3294mhz
Multi: 21x183
LOAD vcore: 1.232
CPU VTT: 1.24
Hyperthreading: ON
LOAD core temps: 65-74C
Cooling: Scythe Mugen2

[Classic Satch]

Batch 3837A732. 13 hours Prime Blend and 50 passes of Linpk stable @1.36v.



CPU Freq.: 4005Mhz
Multi: 211x19
LOAD vcore: 1.36
CPU VTT: 1.35
Hyperthreading: ON
LOAD core temps: 69-72C
Cooling: Koolance Exos-2 LX-Apogee GTZ

[Pisklink]

@ MisterMagoo

Pls update the first post if possible for people to know what template to use. Because in a few days you post is somewhere on a page and can't be find anymore. Otherwise PM the OP to pls update his first post.

I'm glad I mentioned the issue about different voltage reports. After reading some reactions it seems everybody had his or her own interpretation which leads to misunderstandings.

MY RESULTS

Batch Number: 3836A875
CPU Freq.: 4020 Mhz
QPI: 3812Mhz
Multi: 18x
LOAD vcore: 1.288v (CPU-z)
CPU VTT: 1.90v
Hyperthreading: OFF
LOAD core temps: 57 / 58 / 60 / 55
Cooling: Water



On the short term I will try to get 210 x 20 stable. Then I will make a choice between 212 x 19 or 210 x 20 OC. The advantage of 212 bclk is that my RAM runs at 1700Mhz (8-8-8-24-1T) but on the other side with 210 bclk my CPU runs faster and RAM could get tighter timings.

Will also try to get a 4Ghz setting stable with HT enabled. Tried that today for a bit but seems it needs a lot more vcore then (like 1.42v under load in CPU-z). Should I try to increase QPI/DRAM voltage when enabling HT?

[cardnut99668]

Here's an update on my clock:


Bios Voltages:
CPU = 1.40625
VTT = 1.375

As I mentioned in another thread I'm having memory issues, but hopefully I'll be able to get them straightened out.

[tomb18]

Just got my 920 3836A772 and so far it's a winner as far as I can tell. I've only put it together on the test bench, turned off the speedstep throttles etc, and put the Bclock at 200. It booted with everything else default. I have now been running memtest for the last few hours at BClock of 180 with everything default except for the ram voltage at 1.64.

Looks like a winner!

[jcniest5]

Can you people also post the Pack Date with your Batch # please...Thx!

[road-runner]

Rerun it, it probably has more in it I just need to tinker with the voltages I guess.

Batch Number: 3841A371
CPU Freq.: 4074 Mhz
QPI: 3494Mhz
Multi: 21x
LOAD vcore: 1.376v (CPU-z)
CPU VTT: 1.335v
Hyperthreading: On
LOAD core temps: 61-67
Cpu PLL 1.880
Cooling: Water GTZ Swiftech 320 Rad.

[tomb18]

My batch is 3836A772. I've now passed 2 passes of memtest at 200x20, with everything on auto, except for the speedstep etc being disabled.


Pack date is 10/27/08

[GenTarkin]

I was thinkin shouldnt we add the uncore clock speed to the sheet as well?

[loonym]

Batch Number:3837B076
CPU Freq.:4009
QPI:QPI???? You mean BCLK? BCLK: 191
Multi:21
LOAD vcore: 1.376v
CPU VTT: 1.39v
VDIMM: 1.62v
Mem Freq: 1527
Hyperthreading: ON
LOAD core temps: 80c, 78c, 79c, 74c
Cooling: TRUE push/pull

[Pisklink]

@ Loonym

Hell, he means bclk instead of QPI indeed. Crap, now I reported wrong value and multi.

@ MisterMagoo

Batch Number: 3836A875
CPU Freq.: 4020 Mhz
BCLK: 212Mhz
CPU Multi: 19x
LOAD vcore: 1.288v (CPU-z)
CPU VTT: 1.90v
Hyperthreading: OFF
LOAD core temps: 60 / 61 / 61 / 58
Cooling: Water

16 hours of Prime 95

[MisterMagoo]

No, that is correct. QPI is the same as bclock. It has replaced the FSB (as us i7 owners know).

[GenTarkin]

No, that is correct. QPI is the same as bclock. It has replaced the FSB (as us i7 owners know).

bclock and QPI arent the same. bclock is the base system speed for the processor, QPI could be a 36 40 and 44x multi of the bclock...I think those are the choices in my BIOS at least.
So yeah, QPI can be different for everyone depending on the multi they use for it.
Also, what about uncore speeds should we list that?
If we wanted to be most complete we should put bclock, QPI bus speed and uncore speed.

[MisterMagoo]

Hmmm EVGA techs have described it otherwise...I think you are talking about the QPI link speed...but I see where the confusion comes from. We will just call it bclock or bus speed from now on.

We can add anything we want. But the problem is everytime we add something previous entries become incomplete.

[Pisklink]

I think if we post the following data it is as complete as possible. This way everybody should be able te reproduce the provided settings on their own machine.

Batch Number: 3836A875
CPU Freq.: 4020 Mhz
BCLK: 212Mhz
CPU Multi: 19x
QPI link: 3813Mhz
QPI multi: 18x
Uncore: 3389Mhz
Uncore multi: 16x
LOAD vcore: 1.288v (CPU-z)
CPU VTT: 1.90v
Hyperthreading: OFF
LOAD core temps: 60 / 61 / 61 / 58
Cooling: Water

[Splave]

IMO if you have the qpi multi you dont need the frequency of the uncore but thats nit picking nice clocks btw

[Pisklink]

Thank you Bobbylite!!!! I think your right with the multi and all. But we have to take in account that there will be some n00bs as well who want to try OC'ing and maybe don't know that MP (QPI and Uncore) x bclk gives them the frequency.

Moreover my P6T-Deluxe doesn't use MP but I can only choose from determined frequencies which raise when raising the bclk. Therefore other people have the opporunity to select the same speed instantly.

[chance]