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Overclock E8400 - Page 2

post #11 of 19


 
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Budget Build
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CPUMotherboardGraphicsRAM
i5 2500k @ 4.8GHz - 1.38v - 24/7 Gigabyte Z68AP-D3 XFX R7970 Black Edition G.Skill Ripjaws 8GB 
Hard DriveOptical DriveCoolingOS
Seagate 1TB Samsung BluRay Noctua NH-D14 + 3 NF-F12 fans Windows 7 Professional 64bit 
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OCZ Fatal1ty 750w Silverstone Raven RV-02-W 
CPUMotherboardGraphicsRAM
E8400 E0 Gigabyte G31M ES-2L HD 5670 4 GB generic value RAM 
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Thermaltake 
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post #12 of 19
Thread Starter 
I will post all my settings when I get home on here.
My System
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E8400 @ 3.0ghz Gigabyte GA-EP-DS3L PNY geforce 9600 GT 512mb 6gig total Cosair XMS2 DDR2-6400 
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My System
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E8400 @ 3.0ghz Gigabyte GA-EP-DS3L PNY geforce 9600 GT 512mb 6gig total Cosair XMS2 DDR2-6400 
Hard DriveOptical DriveOSMonitor
WD 250gig, WD 1tb Toshiba blu-ray Windows 7 64 bit Dell 21" 
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post #13 of 19
Although it's tempting to throw more and more volts at an OC to stablize it this can have an opposite effect and/or shorten the stable lifetime of the silicon-based life form under your care.

I started by going to CPU Config in BIOS and disabling all the bells and whistles.

Then I take small steps up the FSB. The higher the FSB the more bandwidth, and bandwidth is king when it comes to performance. Eventually you will hit a speed where the rig crashes entering windows. That's when you need to tickle the CPU with come volts. Small increments and many reboots until you learn exactly what the CPU wants at a specific speed.

Take notes. Seriously. Are you really going to remember every change without them?

Once Vcore does nothing check the RAM speed. Most DDR2 800 will need some VDIMM bumpage after 900 Mhz and maybe some slackened timings. You can test that independent of FSB or CPU limits by altering the NB strap.

It's about rebooting so many damn times you are sick of doing it and paying attention to how small changes effect stability at a given speed.

Main things to learn about are what the CPU wants in terms of Vcore for a given speed, how far you can push the RAM before no amount of tweaking matters and it fails regardless, and how much FSB a given mobo will let you have. In general P35 rigs start to poop out around 480 FSB no matter what...that's when a high multi helps.

There are no "tricks" per so...just break it down and pay attention and change as few settings per reboot as possible. It will take hundreds of small changes to learn what your gear is all about.
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Shop Dog
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E8400 Asus Blitz Formula SE HD3870X2 G Skill 2 x 2GB DDR2 800 
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post #14 of 19
Thread Starter 
About the temps I am pretty sure once I redo my fan setup it will fix the problem. I didn't have a good setup and there was 3 open spots for 80mm fans I am filling in now. That should make a big difference, well at least I hope it does haha
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E8400 @ 3.0ghz Gigabyte GA-EP-DS3L PNY geforce 9600 GT 512mb 6gig total Cosair XMS2 DDR2-6400 
Hard DriveOptical DriveOSMonitor
WD 250gig, WD 1tb Toshiba blu-ray Windows 7 64 bit Dell 21" 
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500w 
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E8400 @ 3.0ghz Gigabyte GA-EP-DS3L PNY geforce 9600 GT 512mb 6gig total Cosair XMS2 DDR2-6400 
Hard DriveOptical DriveOSMonitor
WD 250gig, WD 1tb Toshiba blu-ray Windows 7 64 bit Dell 21" 
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500w 
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post #15 of 19
Heres a guide that helped me out a lot, http://www.overclock.net/intel-mothe...3l-thread.html
Now thats your exact board but I couldnt find a thread for it here, But it is a very similar Gigabyte board. The basis will still be the same, pay attention to what to disable and basic settings. I even copy, pasted and printed out the first main post to help me understand it all while in BIOS.
Good luck with your adventures in overclocking that baby!
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Core 2 Duo e8400 @ 4.0Ghz 1.30vcore Gigabyte GA-P35-DS3L Gigabyte GTX560Ti OC G.SKILL 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 1100 
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Bob's Baby
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Midi Mayhem
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CPUMotherboardGraphicsRAM
Core 2 Duo e8400 @ 4.0Ghz 1.30vcore Gigabyte GA-P35-DS3L Gigabyte GTX560Ti OC G.SKILL 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 1100 
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post #16 of 19
65C should not be a problem at all if you are talking about damage to the processor. Many laptop cpus run constantly over 70C and 80C during use. I'm talking about intel, core 2 duo.

Stability is definitely an issue at that temperature if you oc

Quote:
Originally Posted by GerroffMe View Post
Just for your information, my processor when running @ 4.5GHz reaches 61C load and 39 idle. This is using a Scythe Yasya running at low speed.

As a rule of thumb for 45nm cores like the E8400, I would not exceed 65C for extended periods myself. They thermal throttle at 72C and running them this hot will reduce their expected life faster than standard. I would also not exceed 1.4v on the core 2 duo E0 stepping.

As the Princess Garnet very wisely said, post your current settings.

Here are mine for reference, these are off the top of my head so may not be exact.
467 x 9
1.39Vcore
+3 Memory (2.1v)
Timings are 5, 5, 5, 18

If you press CTRL+F1 at the BIOS mainscreen you will make extra options available in the menus.

DISABLE TURBO before you OC btw.
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Low-cost gaming
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post #17 of 19
Thread Starter 
The only settings i changed so far are:

CPU enhanced halt - disabled
CPU thermal monitor 2 (tm2) - disabled
CPU eist function - disabled
Virtualization technology - disabled
CPU smart fan control - disabled
PCIe bus - 100mhz
System memory multiplier (spd) - 2.00B
CPU host frequency (MHz) - 400mhz
CPU Vcore - 1.3v
DRAM voltage - 2.1v

I ran prime95 for 25 mins and I got one error and the test stopped. During the test the temps got up to 58C and 61C.

What should I changed next attempt?
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E8400 @ 3.0ghz Gigabyte GA-EP-DS3L PNY geforce 9600 GT 512mb 6gig total Cosair XMS2 DDR2-6400 
Hard DriveOptical DriveOSMonitor
WD 250gig, WD 1tb Toshiba blu-ray Windows 7 64 bit Dell 21" 
Power
500w 
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E8400 @ 3.0ghz Gigabyte GA-EP-DS3L PNY geforce 9600 GT 512mb 6gig total Cosair XMS2 DDR2-6400 
Hard DriveOptical DriveOSMonitor
WD 250gig, WD 1tb Toshiba blu-ray Windows 7 64 bit Dell 21" 
Power
500w 
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post #18 of 19
Thread Starter 
Should I increase my CPU voltage and run prime again?
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E8400 @ 3.0ghz Gigabyte GA-EP-DS3L PNY geforce 9600 GT 512mb 6gig total Cosair XMS2 DDR2-6400 
Hard DriveOptical DriveOSMonitor
WD 250gig, WD 1tb Toshiba blu-ray Windows 7 64 bit Dell 21" 
Power
500w 
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Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E8400 @ 3.0ghz Gigabyte GA-EP-DS3L PNY geforce 9600 GT 512mb 6gig total Cosair XMS2 DDR2-6400 
Hard DriveOptical DriveOSMonitor
WD 250gig, WD 1tb Toshiba blu-ray Windows 7 64 bit Dell 21" 
Power
500w 
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post #19 of 19
Lower DRAM for now to 1.9v and leave the timings as they were i.e. 6,6,6,18.

Reduce Memory Multi to 1 or 1.5

Increase VCore to 1.32v
 
Budget Build
(9 items)
 
 
CPUMotherboardGraphicsRAM
i5 2500k @ 4.8GHz - 1.38v - 24/7 Gigabyte Z68AP-D3 XFX R7970 Black Edition G.Skill Ripjaws 8GB 
Hard DriveOptical DriveCoolingOS
Seagate 1TB Samsung BluRay Noctua NH-D14 + 3 NF-F12 fans Windows 7 Professional 64bit 
PowerCase
OCZ Fatal1ty 750w Silverstone Raven RV-02-W 
CPUMotherboardGraphicsRAM
E8400 E0 Gigabyte G31M ES-2L HD 5670 4 GB generic value RAM 
Hard DriveCoolingOSPower
Samsung 500GB Scythe Yasya 1000 Windows 7 Professional 64bit Corsair CX430 
Case
Thermaltake 
  hide details  
Reply
 
Budget Build
(9 items)
 
 
CPUMotherboardGraphicsRAM
i5 2500k @ 4.8GHz - 1.38v - 24/7 Gigabyte Z68AP-D3 XFX R7970 Black Edition G.Skill Ripjaws 8GB 
Hard DriveOptical DriveCoolingOS
Seagate 1TB Samsung BluRay Noctua NH-D14 + 3 NF-F12 fans Windows 7 Professional 64bit 
PowerCase
OCZ Fatal1ty 750w Silverstone Raven RV-02-W 
CPUMotherboardGraphicsRAM
E8400 E0 Gigabyte G31M ES-2L HD 5670 4 GB generic value RAM 
Hard DriveCoolingOSPower
Samsung 500GB Scythe Yasya 1000 Windows 7 Professional 64bit Corsair CX430 
Case
Thermaltake 
  hide details  
Reply
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