PLEASE HELP ME TO O/C E8500 on P5Q-E from 3.8GHZ to 4GHZ + make system stable

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Hi, i currently have 3.8 ghz with E8500

want to raise to 4GHZ 24/7 ... will it be safe?

here is my BIOS:

AI Overclock tuner: Manual
CPU Ratio Setting:9.5
FSB Strap to North Bridge:400
FSB Frequency:400
PCI-E Frequency:100
DRAM Frequency: DDR2 - 800Mhz
DRAM CLK Skew on Channel A1:AUTO
DRAM CLK Skew on Channel A2: Same as above
DRAM CLK Skew on Channel B1: Same as above
DRAM CLK Skew on Channel B2: Same as above
DRAM Timing Control:MANUAL

1st Information :

CAS# Latency:4
DRAM RAS# to CAS# Delay:4
DRAM RAS# Precharge:4
DRAM RAS# Activate to Precharge:15
RAS# to RAS# Delay :AUTO
Row Refresh Cycle Time:AUTO
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: Disabled
AI Clock Twister:Moderate
AI Transaction Booster:AUTO

CPU Voltage:1.28
CPU GTL Voltage Reference (0/2):AUTO
CPU GTL Voltage Reference (1/3):AUTO
CPU PLL Voltage:AUTO

FSB Termination Voltage:AUTO
DRAM Voltage:2.1
NB Voltage:AUTO
NB GTL Reference:Auto
SBridge Voltage:AUTO
PCIE SATA Voltage:AUTO

Load Line Calibration:Enabled
CPU Spread Spectrum: Disabled
PCIE Spread Spectrum: Disabled
CPU Clock Skew :Normal
NB Clock Skew :Normal

Advance CPU Settings
CPU Ratio Setting:9.5
CPU VID: Disabled
C1E Suppport: Disabled
Max CPUID Value Limit: Disabled
Intel® Virtualization Tech: Disabled
CPU TM Function: Disabled
Execute Disable Bit: Disabled

maybe someone can tell what can i change? volts + etc. for make system more stable and how can i reach 4ghz,

thank you
 
Looks to me like your mem might be getting maxed.... cas4 at 800 might be ok for your ram, but higher might be a struggle... try going to cas 5
 
I would like to help but its a diff Mobo and CPU.

I'm 24/7 stable (Orthos with CPU fan @ 0 RPM so passive) @ 10x400=4GHZ or 8x500=4GHZ @ 1.056v.

Memory would normally be 4:4:4:12 or 5:5:5:15 (some types are 18) regardless I would set the FSB Strap to North Bridge 333.

List your hardware in SIG please.
 
Last edited:
Assuming your ram does 850mhz ....also is your E8500 an e0 stepping? It will say in CPU-Z


AI Overclock tuner: Manual
CPU Ratio Setting:9.5
FSB Strap to North Bridge:425
FSB Frequency:400
PCI-E Frequency:101
DRAM Frequency: DDR2 - 850Mhz
DRAM CLK Skew on Channel A1:AUTO
DRAM CLK Skew on Channel A2: Same as above
DRAM CLK Skew on Channel B1: Same as above
DRAM CLK Skew on Channel B2: Same as above
DRAM Timing Control:MANUAL

1st Information :

CAS# Latency:4
DRAM RAS# to CAS# Delay:4
DRAM RAS# Precharge:4
DRAM RAS# Activate to Precharge:15
RAS# to RAS# Delay :AUTO
Row Refresh Cycle Time:AUTO
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: Disabled
AI Clock Twister:Moderate
AI Transaction Booster:AUTO

CPU Voltage:1.325
CPU GTL Voltage Reference (0/2):.63
CPU GTL Voltage Reference (1/3):.63
CPU PLL Voltage:1.52

FSB Termination Voltage:1.22
DRAM Voltage:2.1
NB Voltage:1.22
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 :Normal
NB Clock Skew :Normal

Advance CPU Settings
CPU Ratio Setting:9.5
CPU VID: Disabled
C1E Suppport: Disabled
Max CPUID Value Limit: Disabled
Intel® Virtualization Tech: Disabled
CPU TM Function: Disabled
Execute Disable Bit: Disabled
 
Hi,thank you for posts guys!
my CPU iz revision C0 stepping 6!

GURUSAN: do you think your setting will be ok?

Thank you
 
That's the old Stepping and many E8400's cannot even reach 4GHZ.

Hmm I said about "FSB Strap to North Bridge" above well since it can only be set to 266/333/400 and gurusan has put in 425, I am now not sure I have thought of correct setting and I cannot reboot to bios right now to check as downloading stuff.
 
Last edited:
helmutcheese said:
That's the old Stepping and many cannot even reach 4GHZ.

Hmm I said about "FSB Strap to North Bridge" above well since it can only be set to 266/333/400 and gurusan has put in 425, I am now not sure I have thought of correct setting and I cannot reboot to bios right now to check as downloading stuff.
Click to expand...

woops......fixed below

b-star said:
Hi,thank you for posts guys!
my CPU iz revision C0 stepping 6!

GURUSAN: do you think your setting will be ok?
Thank you
Click to expand...

If you have a C0 revision I suggest starting at 1.4V and monitoring temps. If its stable then knock down voltage.

AI Overclock tuner: Manual
CPU Ratio Setting:9.5
FSB Strap to North Bridge:AUTO
FSB Frequency:425
PCI-E Frequency:101
DRAM Frequency: DDR2 - 850Mhz
DRAM CLK Skew on Channel A1:AUTO
DRAM CLK Skew on Channel A2: Same as above
DRAM CLK Skew on Channel B1: Same as above
DRAM CLK Skew on Channel B2: Same as above
DRAM Timing Control:MANUAL

1st Information :

CAS# Latency:4
DRAM RAS# to CAS# Delay:4
DRAM RAS# Precharge:4
DRAM RAS# Activate to Precharge:15
RAS# to RAS# Delay :AUTO
Row Refresh Cycle Time:AUTO
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: Disabled
AI Clock Twister:Moderate
AI Transaction Booster:AUTO

CPU Voltage:1.325
CPU GTL Voltage Reference (0/2):.63
CPU GTL Voltage Reference (1/3):.63
CPU PLL Voltage:1.52

FSB Termination Voltage:1.22
DRAM Voltage:2.1
NB Voltage:1.22
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 :Normal
NB Clock Skew :Normal

Advance CPU Settings
CPU Ratio Setting:9.5
CPU VID: Disabled
C1E Suppport: Disabled
Max CPUID Value Limit: Disabled
Intel® Virtualization Tech: Disabled
CPU TM Function: Disabled
Execute Disable Bit: Disabled
Click to expand...
 
Conan257 said:
I'd doubt you'd have any trouble reaching 4ghz with the cpu tbh... I've a C0 and it can hit 4.5 without too much diff
Click to expand...

Again many E8400 C0's cannot reach 4GHZ, the fact he has a lower Multi means the CPU/MOBO/Memory all need to reach a higher FSB.

I have corrected my above post as I misread and thought the OP had an E8400 C0 :o
 
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I had major issue a few bioses ago setting the DDR speed to what I actually wanted from drop down box when I wanted 1000mhz (was fine at 800mhz).

I found out Auto (same speed) worked and I ain't sure if issue is fixed but I see no reason to not simply leave it Auto as the Memory will follow the FSB in 1:1 at Auto.
 
b-star said:
well, if i set RAM auto, will it work?
thanks
Click to expand...

Yes if you want 1:1, I simply crashed at 500FSB(2000QP) choosing 1000mhz for the Memory.

If I set to Memory Auto it was same speeds but does not crash and can Orthos all day long.

Again this may be fixed for me in newer Bioses but I see no point in even changing from Auto.
 
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