E8500 OFICIAL O/C THREAD!

[b-star]

max core temp is 65C ... after COD4... i guess it is ok

 

[gurusan]

well 65c is fine

 

[b-star]

i've decided to go to 3.8ghz for now, till i get new cooler...

what bios volts you would recommend?

 

[Blackwhite]

depend how big vdrop you've got.Much more important is real vcore not in BIOS

 

[liquidex]

Yup you have to keep checking cpu-z as every motherboard varies.

 

[rapid64k]

Got mine to 3.80MHz think i'll leave it there.

 

[gurusan]

what mobo rapid64k?

 

[rapid64k]

what mobo rapid64k?

hi gurusan I have an Asus Striker II Extreme. the rest of my set up is in my Sig.

 

[JamesM]

I'm getting a 20C drop between cores, core 0 is at 50 and core 1 is at 30

Could this just be the intel heatsink?

 

[SamR]

Hiya,

I thought I'd try posting this in here rather than starting another topic.

Never overclocked before, and just started looking at what's involved. I've been looking at CPU-Z, and it's not quite looking right to me?

Should the Core Speed not be around 3100~?

It's probably a daft and obvious question, but I don't know that answer

Thanks in advance!

 

[rapid64k]

your right not looking too good at all. your multiplier is is way too low and your core voltage is way to low. yours is a EO so should do a lot better than mine.

could you post some of your mother boards settings?

 

[SamR]

Hiya,

I'm using https://www.overclockers.co.uk/showproduct.php?prodid=MB-280-AS
and everything is still on auto at the moment.

Something I thought it might be was the EPU-6 engine it has, for power saving or something . When i checked on CPU-Z before, changing between "Power Saving" and "Turbo" would change the clock speeds etc, but now when i change to "Turbo" it hardly changes.

 

[b-star]

Hiya,

I thought I'd try posting this in here rather than starting another topic.

Never overclocked before, and just started looking at what's involved. I've been looking at CPU-Z, and it's not quite looking right to me?

Should the Core Speed not be around 3100~?

It's probably a daft and obvious question, but I don't know that answer

Thanks in advance!

Hi,
is it two cores are 2ghz? or just one?

if it is only one in BIOS disable CE1

and set x9.5

 

[b-star]

Hi,

i pushed to 4.2ghz mine...(STOCK COOLER)but it was not stable,
dropped to 4ghz was fine, but crysis was crashing after loading any level, same COD4 and other new games, after 15-30min of play "stop responding"

dropped to 3.8ghz almost everything on auto was fine stable, but again only crysis was crashing and prince of persia was loading like i have P3!

Two days ago started to use stock speed 3.16ghz- crysis runs great and all games never crashes...and loading time i cant say that is slower!

probably will do O/C when i have a better cooler, or any other suggestions?

 

[b-star]

Got mine to 3.80MHz think i'll leave it there.

hi, can you post your bios setting?

 

[Guzzidom]

Hiya,

I thought I'd try posting this in here rather than starting another topic.

Never overclocked before, and just started looking at what's involved. I've been looking at CPU-Z, and it's not quite looking right to me?

Should the Core Speed not be around 3100~?

It's probably a daft and obvious question, but I don't know that answer

Thanks in advance!

It's just idling, you narnas!
Intel speedstep drops the multiplier when it's not doing anything, try running Prime95 in the background and see what it says then!.

 

[gurusan]

For those interested I have just got 4608mhz stable on my E8500 using the 9x multi.

P5Q Deluxe, 4x1gb OCZ SLI 8500, Bios 1702m
Settings:

AI Overclock tuner: Manual
CPU Ratio Setting: 9
FSB Strap to North Bridge: Auto
FSB Frequency: 512
PCI-E Frequency: 103
DRAM Frequency: DDR2-1024
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: 11

CPU Voltage: 1.4250
CPU GTL Voltage Reference (0/2): .655
CPU GTL Voltage Reference (1/3): .655
CPU PLL Voltage: 1.52
FSB Termination Voltage: 1.20
DRAM Voltage: 2.10
NB Voltage: 1.30
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

 

[Guzzidom]

I've had my E8400 up there at 1.4v Gurusan, but it was getting too hot, too quickly, what cooler are you using and what sort of temps after a couple of hours of stress testing?, I was hitting 73 degrees (and gradually rising) under Prime95 with an unlapped AC7 and stock paste.

 

[b-star]

GURUSAN - WOW

can you give me setting to run stable on 4ghz ?

 

[gurusan]

I'm under watercooling so temps aren't really an issue.

The AF 7 pro is an excellent cooler for the money, but compared to the more expensive coolers is not that great. If you are running into temperature walls and want to push further I recommend something like the Tuniq Core contact freezer.

Also lower VID chips tend to run very hot. The chip I have now is 1.1825VID and I am currently getting about 65C during priming at 1.408V actual 4.64ghz, this is under watercooling...so I'd imagine air would be a bit roasty.