Sign in with
Sign up | Sign in
Your question

Overclock E8400 to 3.7GHz {+Help} (Stable at 3.6GHz thanks to you guys

Last response: in Overclocking
Share
July 8, 2009 3:22:03 PM

Sup guys, I am here once again to ask for help to increase my overclock just a little bit, 4months ago you guys helped me to set my E8400 stable at 3.6Ghz and a few days ago i've bought 2 new sticks of memory Corsair Dominator DDR2 1066Mhz (Sold the old Kingston DDR2 800Mhz) and now i want just to get Stable at 3.7Ghz w/ my E8400 and 1100Mhz w/ the memory.

Detailed information about my computer:

Intel Core2Duo E8400 C0 @ 3.6GHz {400x9} 1.26850v + Cooler Extream Ice Cube SF-901 w/ Artic Silver 5
Motherboard Gigabyte GA-EP43-DS3L @ F9C
2x 2GB Corsair Dominator DDR2 1066Mhz [5-5-5-15 2T] 2.1v {400x2.66D}
4,25TB Storage
Powercolor ATI HD4850 PCS+ 1GB DDR3 700/1960
PSU Corsair 450VX
Case Elegance [3x 80mm + 3x 92mm + 3x 120mm]

Stable OC at 3.72GHz! Thanks you all for the help!

MB Intelligent Tweaker(M.I.T.)
Robust Graphics Booster ...............: Auto
CPU Clock Ratio ..........................: x9
Fine CPU Clock Ratio.....................:.0
CPU Frequency ...........................: 3717Mhz


Clock Chip Control
Standard Clock Control
CPU Host Clock Control..................: [Enabled]
CPU Host Frequency (Mhz) ............: 413Mhz
PCI Express Frequency (Mhz) .........: 100Mhz


Advanced Clock Control [Press Enter]
CPU Clock Drive..........................: 800mV
PCI Express Clock Drive................: 900mV
CPU Clock Skew (ps)....................: 0ps
MCH Clock Skew (ps)....................: 0ps


DRAM Performance Control
Performance Enhance....................: [STANDARD]
Extreme Memory Profile (X.M.P.)........: [Disabled]
(G)MCH Frequency Latch.................: 400Mhz
System Memory Multiplier ...............: 2.66D
Memory Frequency (Mhz) ................: 1101Mhz
DRAM Timing Selectable ................: [Manual]

Standard Timing Control
CAS Latency Time........................ 5
tRCD ......................................... 5
tRP'........................................... 5
tRAS.......................................... 15

Advanced Timing Control
tRRD........................................... Auto
tWTR.......................................... Auto
tWR............................................ Auto
tRFC........................................... Auto
tRTP........................................... Auto
Command Rate (CMD) ....................: 2

Channel A
Static tRead Value.........................:Auto
tRD Phase0 Adjustment...................:Auto
tRD Phase1 Adjustment...................:Auto
tRD Phase2 Adjustment .................:Auto
tRD Phase3 Adjustment..................:Auto
Trd2rd(Different Rank)....................:Auto
Twr2wr(Different Rank)...................:Auto
Twr2rd(Different Rank)...................:Auto
Trd2wr(Same/Diff Rank)..................:Auto
Dimm1 Clock Skew Control...............:Auto ps
Dimm2 Clock Skew Control...............:Auto ps

Channel B
Static tRead Value.........................: Auto
tRD Phase0 Adjustment...................:Auto
tRD Phase1 Adjustment...................:Auto
tRD Phase2 Adjustment .................:Auto
tRD Phase3 Adjustment..................:Auto
Trd2rd(Different Rank)....................:Auto
Twr2wr(Different Rank)...................:Auto
Twr2rd(Different Rank)...................:Auto
Trd2wr(Same/Diff Rank)..................:Auto
Dimm1 Clock Skew Control...............:Auto ps
Dimm2 Clock Skew Control...............:Auto ps

Motherboard Voltage Control

CPU Vcore….……….....: 1.30000v
CPU Termination….....: 1.300v
CPU PLL…………………...: Auto
CPU Referen.…………...: Auto

MCH/ICH
MCH Core................: 1.300v
ICH I/O.................: Auto

DRAM
DRAM Voltage ……....: 2.1v

Advanced Settings
Limit CPUID Max. to 3.....................: [Disabled]
No-Execute Memory Protect............: [Enabled]
CPU Enhanced Halt (C1E)................: [Disabled]
C2/C2E State Support....................: [Disabled]
x C4/C4E State Support..................: [Disabled]
CPU Thermal Monitor 2(TM2) ...........: [Enabled]
CPU EIST Function.........................: [Disabled]
Virtualization Technology................: [Enabled]

Stress test with OCCT 3.1.0

2x OCCT [Auto 1h] test without any errors
2x LINPACK [Auto 1h] test without any errors

Max Core temperatures w/ LINPACK: 65ºC

I will let Prime95 25.8 with Blend Stress Test overnight to see if it's really stable..


Infos w/ Everest Ultimate Edition 5.01

Temperatures w/ over at 3.6GHz:



Infos w/ CPUZ:



Core Voltage w/ Vdroop = 1.248v ~ 1.264v



Thank you all for the help!

UPDATED post with the CPU-Z screens and stable OC config.

I don't want to try higher OC because my machine stays up 24/7 upload/download torrents... and i've tried to search some info and found out about the FSB Wall at 417Mhz for my mobo (google search)...
July 8, 2009 11:09:49 PM

+1, you could up the vcore a little to get to 3.7Ghz.
Related resources
July 8, 2009 11:13:45 PM

I bet you could hit 4.0ghz no problem
July 9, 2009 12:56:36 AM

Thank you guys for helping me... I think it's stable now but i've done stress tests only with OCCT 3.1.0... I will let Prime95 25.8 testing overnight to check if it's really stable.. if you guys have any advice about the OC or the stress test programs tell me

UPDATED the main post with the OC voltages and config. :D 
July 9, 2009 7:06:20 AM

MOAR!!!!!!!
a c 172 à CPUs
a c 197 K Overclocking
July 9, 2009 7:22:36 AM

Intel's maximum recommended voltage for the 45 nm Core2's is 1.3625 volts.
See Section 12 of:
Core 2 Quad and Duo Temperature Guide
http://www.tomshardware.com/forum/221745-29-core-quad-t...

See your motherboard thermal alarm to 70 C. and raise vcore to 1.35 volts. You should be able to reach at least 4.0 GHz.

Sounds like you may have won the "CPU lottery" and received a chip with a lower than average VID.
----------
Overclocking since 1978 - Z80 (TRS-80) from 1.77 MHz to 2.01 MHz
July 9, 2009 2:31:45 PM

It's not stable at 3.7GHz... Overnight test failed... I think i'm gonna give up, maybe my mobo doesn't support higher OC than 3.6 because of the FSB (1600 in OC) and with 3.72 its 1652..
July 9, 2009 6:41:18 PM

CPU Termination….....: 1.300v
^thats your culprit.....raise the voltage up to 1.35 and go from there.
!