LGA 1156 Core i5 and Core i7 Overclocking guide

[JustAC2010]

I have an Asrock H55M-LE mobo with a core i3 540 at 3.07 Ghz , want to increase it to 3.62GHz. I'm new to overclocking so i Dont know how to proceed, anyone with the same components i have that has already OC'ed who can help me?

 

[LazyJohnosn]

This is very old but I have referred to it many a time, and the IMC/Qtt voltages are incorrect. Even in official intel docs, it has been revised. I was confused to this mysylef, and ended up calling intel waiting for hours to get to someone who knew what i was talking about. my i7 860 is 4.0 ghz stable at only .29v vcore and 1.225 imc. However, New INtel Spec Max Voltages for LGA 1156 as of now are:

Vcore = 1.4
Vtt(IMC.Qtt) = 1.4

Perhaps this will help the many who come here with my chip set to OC, as its the first google result. This was one amazing chipset I must say, to be able to have it running 8 years later on a stable OC on par with a modern system is incredible.

 

[tonari]

This is very old but I have referred to it many a time, and the IMC/Qtt voltages are incorrect. Even in official intel docs, it has been revised. I was confused to this mysylef, and ended up calling intel waiting for hours to get to someone who knew what i was talking about. my i7 860 is 4.0 ghz stable at only .29v vcore and 1.225 imc. However, New INtel Spec Max Voltages for LGA 1156 as of now are:

Vcore = 1.4
Vtt(IMC.Qtt) = 1.4

Perhaps this will help the many who come here with my chip set to OC, as its the first google result. This was one amazing chipset I must say, to be able to have it running 8 years later on a stable OC on par with a modern system is incredible.

Hello LazyJohnosn,
sorry this is an old topic but you seem to know very well about OC and the i7 860.
I also have this cpu on a gigabyte p55a-ud5 motherboard.
And i would like to do a small oc, because i dont have watercooling.
I think about something like 3.6ghz, can you help me to do that ?

I don't really want to oc my memory, or only if it's an obligation.
Thanks.

 

[madaza]

I've chance my i7 870 can run 4 ghz 182 x22 1 hour occt with vcore 1.18 and imc 1.2

http://image.noelshack.com/fichiers/2016/37/1473680362-fdf.jpg

http://image.noelshack.com/fichiers/2016/37/1473680484-fffffffffff.jpg

 

[HalinArse]

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Intel Core i7 920 @ 2785.82 MHz
Dump [pl1em6] - Submitted by F9R0G1E8R4 - 2019-03-05 20:11:23


Processor (CPU)
CPU Name
Intel® Core™ i7 CPU 920 @ 2.67GHz
Threading
1 CPU - 4 Core - 8 Threads
Frequency
2785.82 MHz (21 * 132.66 MHz) - Uncore: 2122.5 MHz
Multiplier
Current: 21 / Min: 12 / Max: 22
Architecture
Bloomfield / Stepping: D0 / Technology: 45 nm
CPUID / Ext.
6.A.5 / 6.1A
IA Extensions
MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, EM64T, VT-x
Caches
L1D : 32 KB / L2 : 256 KB / L3 : 8192 KB
Caches Assoc.
L1D : 8-way / L2 : 8-way / L3 : 16-way
Microcode
Rev. 0x1D
TDP / Vcore
130 Watts / 1.192 Volts
Temperature
61 °C / 142 °F
Type
Retail (Stock Frequency : 2666 MHz)
Cores Frequencies
#00: 1591.04 MHz  #01: 1591.04 MHz  #02: 1591.04 MHz  #03: 1591.04 MHz 
Motherboard
Model
MSI MSI X58M (MS-7593)
Socket
Socket 1366 LGA
North Bridge
Intel X58 rev 12
South Bridge
Intel 82801JR (ICH10R) rev 00
BIOS
American Megatrends Inc. V3.8 (04/01/2011)
Memory (RAM)
Total Size
12288 MB
Type
Triple Channel (192 bit) DDR3-SDRAM
Frequency
530.6 MHz (DDR3-1062) - Ratio 2:8
Timings
7-7-7-20-2 (tCAS-tRC-tRP-tRAS-tCR)
Slot #1 Module
Nanya Technology 2048 MB (DDR3-1062) - P/N: NT2GC64B8HA0NF-BE
Slot #2 Module
Micron Technology 2048 MB (DDR3-1062) - P/N: 18JSF25672AY-1G1D1
Slot #3 Module
Nanya Technology 2048 MB (DDR3-1062) - P/N: NT2GC64B8HA0NF-BE
Slot #4 Module
Micron Technology 2048 MB (DDR3-1062) - P/N: 18JSF25672AY-1G1D1
Slot #5 Module
Nanya Technology 2048 MB (DDR3-1062) - P/N: NT2GC64B8HA0NF-BE
Slot #6 Module
Micron Technology 2048 MB (DDR3-1062) - P/N: 18JSF25672AY-1G1D1
Graphic Card (GPU)
GPU #1 Type
NVIDIA GeForce GTS 450 (GF106) @ 783 MHz
GPU #1 Brand
NVIDIA Corporation
GPU #1 VRAM
1024 MB @ 1804 MHz
GPU #2 Type
NVIDIA GeForce GTS 450 (GF106) @ 783 MHz
GPU #2 Brand
NVIDIA Corporation
GPU #2 VRAM
1024 MB @ 1804 MHz (Samsung)
Storage (HDD/SSD)
Model #1 Name
Seagate ST9500325AS (FW: 0001SDM1)
Model #1 Capacity
465.8 GiB (~500 GB)
Model #1 Type
Fixed - Bus: ATA (3)
Display
Screen #1
Toshiba TOSHIBA-TV (TSB0206)
Screen #1 Spec
40.2 inches (102.1 cm) / 1920 x 1080 pixels @ 23-61 Hz
Miscellaneous
Windows Version
Microsoft Windows 10 (10.0) Professional 64-bit
Windows Subver.
Build 18342
CPU-Z Version
1.87.0 (64 bit)

 

[HalinArse]

I can set the multiplier,and qpi but the system will not keep the overclock after I set it, so if I can ask for some help on this and my cpu is unlocked also.