**Official e8400/e8500 Retail OC Thread

[ssabripo]

Dude this is XS - go for 4.2ghz@ 1.328v-1.344v - you'll love the noticeably speed improvement and the energy costs will be neglible compared to everything else in your house.

BTW your chip can do it because it is an E0 stepping - cpu-z says so in your screenshots.

holy crap...didn't even notice I had a E0!

maybe 500fsb?

[OCX600RR]

Is loadline calibration supposed to be enabled or disabled when overclocking? What's it do anyway?

[LagunaX]

holy crap...didn't even notice I had a E0!

maybe 500fsb?

Looks like your ram may be the only thing holding you back - if it is double-sided then you should be ok but if it is single-sided then you may be out of luck...

[ssabripo]

Looks like your ram may be the only thing holding you back - if it is double-sided then you should be ok but if it is single-sided then you may be out of luck...

i got double sided:

http://www.newegg.com/Product/Produc...82E16820148204

[fornowagain]

I'm ran orthos for about 6 hours since I took the pics...and still counting (about 8 hours now). So far so good, but max temps at 58C. At idle, I'm at 34C

You might want to try small ffts, blend doesn't put much load on the cpu. Proves the ram more.

[LagunaX]

i got double sided:

http://www.newegg.com/Product/Produc...82E16820148204

The product code on the newegg link indicates single-sided (there is an 8 in the product code).

However, you can tell yourself by looking on the sticker and stick:
1) an 8 indicates single (8 ram chips on 1 side) and 16 double (8 ram each side).
2) under the heatspreaders see if you can see ram chips on both sides.

The single-sided don't go over 400 fsb too much - 425 maybe.
The double-sided 450-500 depending on timings and volts.

You might want to check every stick - you might be mixing single and double sided ram if you are running 4 sticks. I rma'ed a single-sided pair and got double-sided back for instance.

[kimohw]

I have E8400 Q820A757, currently running at 4.1GHz (456x9), vCore in CPU-Z 1.28v under load and 1.30v idle, should I try to lower the vCore ?

[anzial]

I have E8400 Q820A757, currently running at 4.1GHz (456x9), vCore in CPU-Z 1.28v under load and 1.30v idle, should I try to lower the vCore ?

You don't have to ask our permission to find that out

[carepolice]

I have E8400 Q820A757, currently running at 4.1GHz (456x9), vCore in CPU-Z 1.28v under load and 1.30v idle, should I try to lower the vCore ?

Straight said, No

[ssabripo]

The product code on the newegg link indicates single-sided (there is an 8 in the product code).

However, you can tell yourself by looking on the sticker and stick:
1) an 8 indicates single (8 ram chips on 1 side) and 16 double (8 ram each side).
2) under the heatspreaders see if you can see ram chips on both sides.

The single-sided don't go over 400 fsb too much - 425 maybe.
The double-sided 450-500 depending on timings and volts.

You might want to check every stick - you might be mixing single and double sided ram if you are running 4 sticks. I rma'ed a single-sided pair and got double-sided back for instance.

you are absolutely right. I think I will double check.

btw, which RAM do you suggest I get?

[Dua|ist]

What if higher E0 temps are caused by yet another Tjmax change by Intel? If the Tjmax were for example 95C instead of 100C, all temps would be 5C lower and almost like C0 ones. If it were 90C - we'd be getting temps a few degrees lower than C0 - and that would be logical indeed.

[FabricioGS]

E8400 E0 + Asus P5Q Deluxe + 2x2GB OCZ Reaper HCP 1066

4GHz (445x9) with 1.24375v on bios and 1.2320v @ load on Windows.




4.3GHz (506*8.5) with 1.35625v on bios and 1.3520v @ load on Windows.



http://valid.x86-secret.com/show_oc.php?id=433790

I have a screen with 1.3500v on bios 2h stable on Prime but also.

I'll try fsb 530+ now

[ssabripo]

guys,
quick question about memory frequency, straps, and FSB:

on my Asus P5Q-E:
I had my RAM frequency in AUTO, with timings at 4-4-4-12, and Vram=2.02v..... it was running fine, until I started to mess with CPU ration settings from Auto to 9.0. Now, it starts to hang up. I initally had my Vcore at 1.29 and was running great, but now even with 1.31 is crashing on occasion.
Anyways, looks like my RAM is my limiting factor at this point. My question is, what's the best way to setup the RAM frequency, so that it doesn't get affected by the higher FSB? should I force it to DDR2-800 or 900 or so, or leave it in auto?

I want to shoot for 450fsb (4ghz) with 1.3Vcore, and let the ram timings and frequency be what they need to be to be stable here.

any help is appreciated!

[lha]

guys,
quick question about memory frequency, straps, and FSB:

on my Asus P5Q-E:
I had my RAM frequency in AUTO, with timings at 4-4-4-12, and Vram=2.02v..... it was running fine, until I started to mess with CPU ration settings from Auto to 9.0. Now, it starts to hang up. I initally had my Vcore at 1.29 and was running great, but now even with 1.31 is crashing on occasion.
Anyways, looks like my RAM is my limiting factor at this point. My question is, what's the best way to setup the RAM frequency, so that it doesn't get affected by the higher FSB? should I force it to DDR2-800 or 900 or so, or leave it in auto?

I want to shoot for 450fsb (4ghz) with 1.3Vcore, and let the ram timings and frequency be what they need to be to be stable here.

any help is appreciated!

With my ASUS P5K mobo the best memory setting are AUTO, believe or not!
Just try it on auto and if you cant get high FSB try to force it to lowest mhz (i think).
BTW: im not the very best overclocker so dont mind if im wrong

[ssabripo]

With my ASUS P5K mobo the best memory setting are AUTO, believe or not!
Just try it on auto and if you cant get high FSB try to force it to lowest mhz (i think).
BTW: im not the very best overclocker so dont mind if im wrong

didn't really work that good in Auto for me.



for those with Crucial Ballistix PC2-6400 (4-4-4-12, 2.0v rated), what are you guys using for Timings and ratio/strap?

[dnottis]

guys,
quick question about memory frequency, straps, and FSB:

on my Asus P5Q-E:
I had my RAM frequency in AUTO, with timings at 4-4-4-12, and Vram=2.02v..... it was running fine, until I started to mess with CPU ration settings from Auto to 9.0. Now, it starts to hang up. I initally had my Vcore at 1.29 and was running great, but now even with 1.31 is crashing on occasion.
Anyways, looks like my RAM is my limiting factor at this point. My question is, what's the best way to setup the RAM frequency, so that it doesn't get affected by the higher FSB? should I force it to DDR2-800 or 900 or so, or leave it in auto?

I want to shoot for 450fsb (4ghz) with 1.3Vcore, and let the ram timings and frequency be what they need to be to be stable here.

any help is appreciated!

keep it 1:1, lowest memory divider possible. I find that works best, high memory with wolfdale makes the system unstable, even though I have DDR2-1100. Can you ram memtest 900 stable? Drop the multipler and try it. Make sure you dont have FSB wall and to see if the ram can do 900Mhz.

[Melhisedek]

Running P5Q Deluxe with E8400 E0 and having troubles running any higher than 4Gig.

To get to 4Gig I need 1.368 Core Voltage (CPU-Z) and I get temps around 62 and 59 using core temp.

I've followed some guides here for BIOS settings and tried most I think but I can't get the o/c higher... This is on air with Thermaltake 120 Extreme and Schyte fan.

So are these volts and temps ok for 24/7? Can I go higher with volts?

AI Overclock tuner: Manual
CPU Ratio Setting: 9
FSB Strap to North Bridge: Auto
FSB Frequency: 445
PCI-E Frequency: 100
DRAM Frequency: DDR2-1069
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: Auto

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: 55
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: Auto
AI Transaction Booster: Auto

CPU Voltage: 1.37500
CPU GTL Voltage Reference (0/2): AUTO
CPU GTL Voltage Reference (1/3): AUTO
CPU PLL Voltage: 1.6
FSB Termination Voltage: AUTO
DRAM Voltage: 2.1
NB Voltage: 1.30
NB GTL Reference: AUTO
SBridge Voltage: 1.20
PCIE SATA Voltage: 1.50

Load Line Calibration: Enabled
CPU Spread Spectrum: Disabled
PCIE Spread Spectrum: Disabled
CPU Clock Skew : Auto
NB Clock Skew : Auto
CPU Margin Enhancement: Optimized

Advance CPU Settings
CPU Ratio Setting: 9
CPU VID: Default Don't have this option
C1E Suppport: Disabled
Max CPUID Value Limit: Disabled
Intel® Virtualization Tech: Disabled
Vanderpool Technology: Disabled  (dont have this either)
CPU TM Function: Enabled
Execute Disable Bit: Enabled

RAM is
4GB (2x2048) DDR2 PC8500 CorsairXMS2 Dominator

Motherboard is ASUS P5Q with latest bios 1406 I believe.
Any ideas are welcome.
I guess my chip is a bad overclocker

[ssabripo]

i just changed the NB voltage to 1.34, and left everything else the same, and looks like it is stable now.

ps- does anyone know how to disable the multi from dropping to x6? I've tried everything and it still drops to x6 when idle.

asus p5Q-E

[IlludiumQ36]

i just changed the NB voltage to 1.34, and left everything else the same, and looks like it is stable now.

ps- does anyone know how to disable the multi from dropping to x6? I've tried everything and it still drops to x6 when idle.

asus p5Q-E

Disable C1E Support

[ssabripo]

Disable C1E Support

C1E or Speedstep?

[truehighroller]

Is loadline calibration supposed to be enabled or disabled when overclocking? What's it do anyway?

Disable it as on my board it caused me issues with it turned on. It trys to make up for Vdroop by pumping a little more voltage into it to keep it closer to what you set it as "the core voltage I am refering to BTW". I have it enabled for my Q9450 and it likes it but, I have noticed a decent amount of people saying it causes issues with their Core 2s and I had an issue as well so.. disabled.

[truehighroller]

C1E or Speedstep?

Both if you have both,, Disable everything you don't need under the CPU advancd options or whatever it is called on your board until you get stable then see what you can get away with. May be you can use speed step but, get everything stable first. I personaly leave all that crap turned off but, I don't care about the enviorment so.. .

[dnottis]

you have to go into the CPU settings screen and disable everything there. Not the same window you OC in.

[JohnLoph]

interesting

[19*12 gamer]

I need Loadline Calibration ON, it's the only way i can get my system stable @4.5Ghz on air. Shame it needs 1.45v for it....

My settings are:
Ratio CMOS Setting : 9
FSB Frequency : 500
FSB Strap to North Bridge : 400
PCI-E Frequency: 110
DRAM Frequency: DDR2-1000
DRAM Command Rate : 2T
DRAM Timing Control: Manual
CAS# Latency : 5
RAS# to CAS# Delay : 5
RAS# Precharge : 5
RAS# ActivateTime : 18
RAS# to RAS# Delay : AUTO
Row Refresh Cycle Time : AUTO
Write Recovery Time : AUTO
Read to Precharge Time : AUTO

DRAM Static Read Control: disabled
Ai Clock Twister : light
Transaction Booster : auto (0-30 I still dont get this setting, there is NO relax)

CPU Voltage : 1.46//reads in BIOS/cpuz/cpuid: 1.448v
CPU PLL Voltage : 1.58 // 1.664v
North Bridge Voltage : 1. 65 // 1.648v
DRAM Voltage : 2.2// 2.2v
FSB Termination Voltage : 1.44// 1.344v
South Bridge Voltage : AUTO
Loadline Calibration : Enabled
CPU GTL Reference : 0.62*
North Bridge GTL Reference : 0.67*
DDR2 Channel A REF Voltage : AUTO
DDR2 Channel B REF Voltage : AUTO
DDR2 Controller REF Voltage : AUTO
SB 1.5V Voltage : AUTO

CPU Spread Spectrum : Disabled
PCIE Spread Spectrum : Disabled

Gonna try Intels burn test now...

EDIT:This app is very scary, it took my cpu from 36 degrees up to 68 Degrees C in 1 second! I dont think this represents normal use, even with several stress tests the system never reach beyond 59 degrees..
My cpu is rated for 74Degrees max according to Intel, whats a safe max temp to run on? (I did pass the Burn tests)

Thanks again for assisting me