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e5400 overclocking for dumb

post #1 of 18
Thread Starter 
Hello.As i am not smart in computers.can u pls help me with overclocking.what can i do to improve ?
E5400 cpu
MB-G31m-es2l
ram-2x2gb 667mh

i allready did some overclock-302 bus,12 x multiplier.so i got 3.62 ghz now.and ram is about 800(2.66) .voltage on automatic

So,is it possible to do something more?because if i raise atleast 12.5x or make more fsb then it crash with blue screen.

Help please?redface.gif:rolleyes:
post #2 of 18
I'll start by saying that I am no expert on older Intel 45nm processors. What I do know is that going from 2.72 Ghz to 3.62 Ghz on a older 45nm processor is pretty good. Maybe we can do a little better.

Help me out here, since I am unfamiliar with that older architecture. What is running at 302 Mhz? Is that your front side bus? What is the stock speed on that?

Try manually setting the voltage. I did some digging and you can run that processor at up to 1.4V 24/7 without any risk of damage (assuming you can keep it cool enough). With a higher voltage you should be able to OC higher.

In case your new to this whole overclocking thing, don't for get to run a stress test like Prime 95 to check for stability while monitoring temps. Keep your temperatures below 70 C at all time. If you can't, back down the voltage a little bit.
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post #3 of 18
Thread Starter 
So.i have pretty good cooler,so on any kind of load my cpu doesnt go higher than some 55-60 C.(not stock cooler) .
today did Prime 95 and everithing crashed=( so had to lower to 3.51 ghz.now it seems that is going well. so now my stats are multiplier 13.5x and 260 fsb-yes,what u asked about 302-bus speed.
so now fsb:dram is 3:4
on CPU-z dram freq is 346.7mhz.
about voltage,i dont understand because for now it is on "automatic" but it doesnt show exactly how much voltage there is just- "normal" and as an option +0.1/+0.2,same for dram.
as i was looking for other overclockings,it seems that my MB has very basic Bios,with just few options

oh,and about FSB and everithing in stock (2.7 ghz) it is 13.5 x 200
post #4 of 18
So you can only adjust the voltage offsets, and not the voltages themselves.

By manually adjusting the voltage, you should be able to OC much higher. thumb.gif

I believe your stock voltage on your CPU is between 1.18 volts to 1.26 volts (It will vary a tiny bit as your processor comes under load. This is normal. ) Please double check me, because if i am wrong you could damage your CPU. Use CPU-Z to check on your current voltage --> http://www.cpuid.com/softwares/cpu-z.html

So I believe your be able to go up to an offset of about +1.25V before you have to worry about damaging your processor from too much voltage (typically your processor will start overheating long before you get to that voltage). I would increment the voltage +0.2 volts at a time, testing for CPU temperature after each change.

A tiny but of voltage change might make a huge jump in temperature, (epically at higher voltages) so be careful. The temperature increase is exponential. Increasing from a 0.2 to a 0.4 offset might only increase your temps by lets say 3 C hotter. Where a offset increase from 1.0 V to 1.2V might change your temps by lets say 20 C hotter.

If your memory divider is adjusted so that your RAM is still running at close to stock speeds, you don't need to over-volt your ram. If your running your RAM above stock speeds, your need a little voltage boost to get stable. How high can you go with the RAM? Well, that entirely depends on the manufacturer of the RAM. High performance RAM heat spreaders can take as much more voltage than cheap RAM with heat spreaders (usually).

Stock for DDR (1) is 2.5V, so I am assuming you have DDR RAM. 2.8 volts is the the max "guaranteed" safe voltage. So, try a offset of up to +0.3 V for the RAM. I have heard people run as high as 3.0 volts without a problem, but I would not recommend it.

Just curious, is English your second language?

Thanks for running Prime95. If the computer does not crash with Prime 95, then it will not crash wile your doing something intensive. If it does not overheat during Prime95, then nothing will overheat it. :-)
Edited by crimsontears809739 - 4/4/13 at 9:36am
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post #5 of 18
GET PROPER MAINBOARD. P35, or P45.

Also max voltage is 1.250, depends on substrate.
Quote:
Originally Posted by crimsontears809739 View Post

Stock for DDR (1) is 2.5V, so I am assuming you have DDR RAM. 2.8 volts is the the max "guaranteed" safe voltage. So, try a offset of up to +0.3 V for the RAM. I have heard people run as high as 3.0 volts without a problem, but I would not recommend it.

That's nice, he's using DDR2.
Edited by Raghar - 4/4/13 at 10:33am
post #6 of 18
Thread Starter 
My voltage for cpu is 1.07-1.275 depends on load.
Yes,english is not my first language,sorry about that,probobly many mistakes.hope you understand and wont juge me =)
Ånd ofcourse my ram is DDR2 =) my pc is maybe some antique but not on so high lvl )))
so i looked once again in bios-3 options-DDRAM/FSB/CPU voltage
Dram can do only + 0.1/0.2/0.3/0.4
changed cpu voltage to 1.31...(it is next option that i can change and pc wont turn on
Edited by Tomucis - 4/4/13 at 11:22am
post #7 of 18
The G31 chipset will limit your overclock..just. umm..raise voltage as high as you can and push it as far as it will go with that motherboard.

To really overclock the CPU..You need p35,p45,x38,x48 motherboard. in the Asus,Biostar, or Gigabyte flavors.
Maybe lower RAM speed down a notch.
Edited by Schmuckley - 4/4/13 at 11:27am
 
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post #8 of 18
Thread Starter 
the thing is i cant push up voltage =( strange.because i just raised voltage to next point,and raised fsb to 300 12.5x and it just restarted at the very begining of pc start and changed to stock bios setting.but when i set same setting without voltage change pc go's till welcome screen and then crashes

p.s. i understand that it would be better with other motherboard,but thing is ,if i want to change something then,just better change everithing-MB,CPU and ram.there is no need to change just mb for overclocking.just was interesting what my machine can do.because i have no big need in super pc:o

i am allready amazed what i could do with this antique.just i saw on i-net that some poeple could bring e5400 up to 4ghz with little tail. but i also understand that its not only cpu but other sistem too)
So probably just need to thank for 3.51 hz from 2.7!?
Edited by Tomucis - 4/4/13 at 11:30am
post #9 of 18
A good 775 motherboard can be very fun biggrin.gif
I'm running one right now ph34r-smiley.gif ..a p5e3 with an e8500 devil.gif
 
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post #10 of 18
Thread Starter 
ok,now i have raised voltage for 0.01 and fsb is 300 x 12.(3.6ghz)runing prime now. one little question how long should i run prime95 till i can be sure?
tried 3,75 ghz and voltage stock till 1.299,, but chrashes before welcome screen.

i have question about fsb -how high should i change it to be ok for my dram? if it is stock 667. at moment with these settings lowest i can with 2.66 is 800mhz

temperature now seems that is not getting higher than 58 C

Do i need to rn some programs by default to load cpu more? now just Blender running.And ofc Prime95.
sorry,i understand that for you these might be silly questions,

And at what temperature i should start to worry?

strange thing that on CPUID cpu voltage hasnt go higher that 1.25,does it should be like that?if i set to 1.29..?
Edited by Tomucis - 4/4/13 at 12:14pm
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