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The almighty overclocking chip


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So I got a E8400 today and installed if after a quick bios flash from DFI.

 

about to get to overclocking, the only thing i have a concern for is the temperature's. I used AS5 b/w the cpu and waterblock.

the bios is reading 28C for idle temps while coretemp is reading 45 C @ idle.

Everything is fitted correctly and when I put the CPU into load only the top core moves to about 51 C while the 2nd core stays at 45 C

 

My temperatures were never this high when I had my E6850, I wonder if my bios are giving the CPU more volts than it needs when set to idle.

 

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EDIT:

Settings any ideas guys. I have a hump and I wanna get over it.

 

Linked mode

I have tried the following

FSB: 1800 & 1850

Ram: 900 & 925 @ 5-5-5-15

LDT : 3X and 4X

Ram V:2.3V

Vcore : 1.45V

NB : 1.57V

SB core: 1.52V

SB Dual: 1.62V

HT: 1.42V

HT VTT : 1.44

Idle ( Bios) : 31 C

Idle ( coretemp) :45 C

Load ( coretemp ) 59 C ( hottest core)

 

I've played with

Voltages

FSB's ( checking for holes )

LDT

Ram dividers

 

 

I want over this hump bad.. dry.gif

@ 4.05 Ghz I can get into windows but it will freeze upon any stress

@ 4.1 ghz I can't get into windows. BSOD upon start-up

 

currently sitting @ 3.9 ghz stable OCCT , Super PI 32 mb and Orthos 14 hours.

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Well currently i'm having a problem.

It seems to me that my motherboard doesn't like to post when i push a FSB speed higher than 1500 mhz.

 

I tried 1500 mhz FSB and it POST's fine but soon as i move up to 1550 mhz it doesn't want to post at all.

 

settings:

Linked mode 1550 mhz with ram @ Sync mode (775 mhz). Have also tried 1600 mhz linked with ram @ 800 mhz

CPU VCORE : 1.4 V

NB: 1.54 V

SB:1.56V

HT Voltage :1.32

HT VTT:1.34

 

Any idea's why the motherboard won't even post and CMOS has to be reset for any FSB's higher than 1500 mhz

 

I used to run my E6850 @ 1600 mhz(3.6 ghz) with those voltages ( minus Vcore) and it worked great, Stable as a rock.

 

I'm wondering if the 45 nm bios flash I got edited on my overclocking

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different BIOS releases have different FSB holes, and different values for stability... all part of the "fun" of the DFI 680i...

 

I hope you didn't use CMOS reloaded to recall your settings, and hope you followed the BIOS flash procedure as detailed on the Tmod CD

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do you do anything like load setup default, cmos reset, remove the battery when flashing the bios... or do you just flash from windows?

 

flashing from windows is generally a bad idea... you don't need a floppy drive at all... I use a flash drive... you could use Tmods DFI Bios CD...

 

you can easily get odd behaviour by not flashing properly, and it sounds like maybe you haven't

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There were a couple settings I needed to change in the bios

like intl display PCI-E slot

and I did reset CMOS before i flashed.

 

I got it working.. there must be a FSB hole @ 1600 mhz

 

Currently testing at 1700 mhz with 1.35 V with ram @ 850 mhz

Running Orthos overnight..

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dude mattwalter85 got his e8400 up to 4.2 stable but he's using an abit 2p35 pro not a dfi

Well even though he may or may not want to go that high with his chip phil, I figured you would know by now that all chips are different....

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