E8500 OFICIAL O/C THREAD!

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E8400-E8500-E8600 OFICIAL O/C THREAD!

Hello!
Seems many people ask to Help with E8400/E8500!

This threaded is opened to See who has which CPU speed, Bios Details, etc.

C0- stepping
At the moment i am on 4GHZ, FSB1700!
Volt : 1.35
max temp:58C, STOCK COOLER (about 4 hours of game play:-D)

3.8GHZ can be reached very easy, with almost all setting on Auto 24/7 stable!
4GHZ, started to play with BIOS, took me a bit of time, yesterday had Error screen (blue), which reported that it is caused by CPU!i have encreased Volt to 1.3620, no issues so far!100% stable system!
but can not see much difference!

so, how far you pushed your E8... CPU?which steppings you have?
if you can... Write BIOS settings which can help other people to get Stable system with O/C!
 
Last edited:
my E8500 is Q828A127, 1.25VID
4x1gb OCZ SLI 8500
P5Q Deluxe

Settings for 4655mhz:

AI Overclock tuner: Manual
CPU Ratio Setting: 9.5
FSB Strap to North Bridge: Auto
FSB Frequency: 490
PCI-E Frequency: 103
DRAM Frequency: DDR2-1176
DRAM CLK Skew on Channel A1: AUTO
DRAM CLK Skew on Channel A2: AUTO
DRAM CLK Skew on Channel B1: AUTO
DRAM CLK Skew on Channel B2: AUTO
DRAM Timing Control: manual

1st Information :

CAS# Latency: 5
DRAM RAS# to CAS# Delay: 5
DRAM RAS# Precharge: 5
DRAM RAS# Activate to Precharge: 15
RAS# to RAS# Delay : AUTO
Row Refresh Cycle Time: 50
Write Recovery Time: AUTO
Read to Precharge Time: AUTO

2nd Information :

READ to WRITE Delay (S/D): AUTO
Write to Read Delay (S): AUTO
WRITE to READ Delay (D): AUTO
READ to READ Delay (S): AUTO
READ to READ Delay (D): AUTO
WRITE to WRITE Delay (S): AUTO
WRITE to WRITE Delay (D): AUTO

3rd Information :

WRITE to PRE Delay: AUTO
READ to PRE Delay: AUTO
PRE to PRE Delay: AUTO
ALL PRE to ACT Delay: AUTO
ALL PRE to REF Delay: AUTO
DRAM Static Read Control: Disabled
DRAM Read Training: Disabled
MEM. OC Charger: Enabled
AI Clock Twister: Lighter
AI Transaction Booster: 10


CPU Voltage: 1.425
CPU GTL Voltage Reference (0/2): AUTO
CPU GTL Voltage Reference (1/3): AUTO
CPU PLL Voltage: 1.52
FSB Termination Voltage: 1.24
DRAM Voltage: 2.1
NB Voltage: 1.26
NB GTL Reference: .63
SBridge Voltage: AUTO
PCIE SATA Voltage: AUTO

Load Line Calibration: Enabled
CPU Spread Spectrum: Disabled
PCIE Spread Spectrum: Disabled
CPU Clock Skew : Delay 100ps
NB Clock Skew : Auto
CPU Margin Enhancement: OPTIMIZED
Click to expand...
 
Well here is mine, not that great. Need to get lower voltages, it's at 1.325V (picture is like 5 days out of date, that voltage was way high) at the moment. Have a scythe katana 2, hopefully soon a core contact freezer :).
2008-12-07_164534.jpg
 
Descent said:
Well here is mine, not that great. Need to get lower voltages, it's at 1.325V (picture is like 5 days out of date, that voltage was way high) at the moment. Have a scythe katana 2, hopefully soon a core contact freezer :).
2008-12-07_164534.jpg
Click to expand...

Raise bus speed to 425, as C0 is older steping, some people say it is hard to O/C it if we talk about +4Ghz .

i am afraid to go over 1.36 Cpu Volt for 24/7
 
what kinda temps are people getting with these chips? ive put an e8600 in last week. Current at 4.3ghz with 1.25v but my temps seem a little warm. Currently idling at 38c and hits 51c under load. If i use around 1.32v or more my temps hit 60c under load. This is under water with an EK Supreme block.

Not investigated yet so hopefully block just need reseating as it seems very toasty to me for my cooling
 
Got an e8500 E0 chip (thanks gurusan) - for some reason CPU-Z and OCCT don't show the 0.5x multi but core temp's reading it right as the extra half multi is enabled in bios. :confused:

Stepping Q826A402 and VID is 1.175V.

4.5ghz @ 1.32v (in bios) - 1.3v'ish under 100% load:

e8500E04500mhz.jpg


Just the northbridge in the loop on a PA120.2 so very happy. :D

gt

P.S: Also, gurusan clocked it to 4138Mhz at only 1.168V.
 
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