greeting.. im a newbie in OCing proc.. so i wan to ask question here.. a bit of my oc history, right im using e5200 2.5ghz, i oc it to 3.3ghz at stock cooler with a max temp under load is at 57'c.. so im thingking of going more to 4.0ghz at least or higher..is my mobo good enuf for the task? im using gigabyte ga ep31,refer to my signature..also im planning to use this cooler if i wan to go to 4ghz or higher .. any opinion or advises guys..

Should be fine... Most motherboards can overclock this dual core easily as its power requirements are very low. You'll need at least 320MHz system bus to reach 4GHz using the CPU highest multiplier 12.5x, which should be easy on most motherboards. You might need to bump the Vcore a bit to reach 4GHz stable though.. depends on your luck. If you got a golden chip which can reach 4GHz on stock Vcore then you're very lucky.

E5200 multiplier is very high, so should be no problem. As lex said, 320x12.5 is easily achievable by the G31. The challenging setting will be 400x10 IMO. Try for that.

2.0 -> 4.0 how much vcore hv to pump?

it depends on the proc itself. Like Lex was said, if its a golden gem chip, then can easily OC to 4ghz at stock Vcore

can i oc to 4ghz without using a cpu cooler? or to 3.5 or 3.8

so i guess i shuld try one by one to see which vcore is stable? now i set 1.2vcore to run at 3.3ghz.. the temp under load is at 57'c.. if i go to 4ghz, let say i'l already hav diz cooler.. wat is the max safe temperature?

its not possible to clock without cpu cooler,,, do u wan to burn ur processor?...

how much is ur temp at 3.5ghz full load with stock cooler

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Added on January 15, 2009, 8:22 pmdual core 5+ at full load should be fine,,,

good cooler there

This post has been edited by ganabathi: Jan 15 2009, 08:22 PM

5+?

wa... so keng .. oc til 4...
do my E6750 can oc til that ?
using giga P35-DS3L board.

If you manage to make the Vcore under 1.45v then this is a good option to you

Thats the idea, i hope i can oc this proc to 4ghz, without exceeding 1.3++vcore.. i hope i be able to do that with the ccf cooler.. btw look here , why it is written for 45nm donot go above 1.4v? is it because of the stock cooler?how about after i used this ccf cooler? can i go beyond that?
also the ram voltage, if i didnt set to 0.2v is it ok? right i just let it set normal..

This post has been edited by uzary: Jan 16 2009, 01:58 AM

for me, i prefer to get things done below 1.4vcore.

my E7200 now at 1.365vcore 3.6ghz @ 8.5x425.

Take the overclock one step a time .. Test with wPrime or Prime95 for stability, if not increase voltage bit by bit until stable.

The RAM voltage increase option is for overclocking the RAM. Increase this a bit if running the RAM at (much) higher than its rated opertaing clock speeds.

forgot to tell you - i'm using this cooler, and running fanless at 3.6ghz.

i should be getting a 92mm version soon and i'll see how it goes.

so wat is ur max temp under load? btw y no fan?

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Added on January 16, 2009, 5:22 amif i set the ram voltage normal(at default) and not 0.2v+ like in the pic can?

This post has been edited by uzary: Jan 16 2009, 05:24 AM

Can... just use Memtest to check RAM stability if running above its rated operating frequency..

usually i make make sure not exceeding 800 as im using ddr 2 800.. so im only change the setting if i wan to oc my ram is it?
btw is it safe if i go slightly over 800 let say 810 or 820.. is it ok?

And don't go over 1.4VTT on daily,will kill processor in few months
So 1.45vcore/1.4vtt is pretty max for 24/7 using good cooling but there are people who run over 1.5v(Good Cooling and low ambient also) 24/7 on 45nm and the chip don't die
While anandtech kill their QX9650 with 1.51vtt testing for 24/7.......................

errrr... VTT is wat again ah?? CPU PLL or FSB termination ah?? hahaha 4get which de...

btw 45nm proc can go 1.45v ka?? isnt that a little too high for 45nm procs? >"<

Can anyone tell me how do I OC CPU GHz ? I cant seems to find it in the bios menu..Using Extreme QX6800 with CCF?
Lex tolong =) OC abit will BOOM anot? Jz abit =)

VTT is FSB termination
1.45v is fine but anything above is not recommended for 24/7

so i shud try to make sure that my 45nm running below 1.45v for 4ghz++ using ccf?

ur volts depends on ur stability. if its too low, ur oc is not stable. For me, I`d use high ones first, test with P95, if stable, undervolt it till the max possible one

bro, pci express frequency must alwayz set at 100? if set auto wat happen?

i learn OC from here..
easy to understand

That one is for pushing the FSB (to very high, usually above 400MHz). Do not touch that one until you have reached a FSB "wall".

Try to maintain PCI Express frequency at 100MHz. Otherwise PCIe devices might not respond properly to higher frequencies and timings.

Why don't you inquire these stuff at the overclocking section? Moving this thread there...

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Added on January 17, 2009, 2:43 amWhich motherboard are you using at the moment? Check the motherboard manual for the overclocking menu..


This post has been edited by lex: Jan 17 2009, 02:43 AM

i think my mobo fsb wall is 375mhz am i right?

Asus P5QL-PRO motherboard loh...how how?

ok, jus received my sunbeam ccf today.. i try to oc my proc to 4.0ghz.. but at 1.4vcore, still not stable, thus i dunwan to push to higher vcore as im stil new in this oc world, , then i decide to oc to 3.87ghz, at 1.36vcore, i manage to stable using othos at max load of around <61'c.. that a 30 min strees cpu and ram test.. however, at 33 min, there is an error, something like hardware failing..it just stop,but not hang, no BSOD, no nothing.. i just closed the orthos, and now resuming surfing the net..
my question is how long will it take to test for stability, and is my pc is stable or not? and what does it mean by hardware failing?does i fail any of my hardware? but somehow my hardware no effect or anything.. plez help..

8 hour orthos to for me....least than that i consider unstable....

GTG

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Added on January 18, 2009, 9:02 pmto be honest its quite hard to reach 4ghz with e7 and e5....even C0 e8 sometime struggle to get 4Ghz....Goodluck...

e0e8 ftw....

GTG

This post has been edited by Punish: Jan 18 2009, 09:03 PM

@uzary... You have to tell us...

#1. System bus or FSB frequency, and CPU multipliers used..

#2. Memory multiplier used, as well as current memory frequency... voltage used for RAM

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Added on January 19, 2009, 2:14 amIn the BIOS...

Under AI Tweaker Menu

Set FSB Frequency to 333MHz
Set CPU multiplier to 9
Set PCIE Frequency to 100
Set FSB Strap to Northbridge to 333mhz
Set DRAM frequency to 400mhz

also...

Set C1E Support to Disabled
Set Max CPUID to Disabled
Set Intel Speedstep to Disabled


Run CPU-Z to check the CPU frequency, also check the memory frequency..

You should get around 3GHz (equivalent to a QX6850)... Run and see if its stable (test with Memtest86, wPrime, Prime95 or Orthos).. If stable then slowly raise the CPU multiplier one step at a time, and re-run the stability tests. If not stabil then raise the Vcore a bit... Your target will be 3.33GHz first (10.0 x 333MHz), then try to reach 3.67GHz (11.0 x 333MHz). Any higher than that then you have to start raising the FSB beyond 333MHz...

This post has been edited by lex: Jan 19 2009, 02:18 AM

at 3.87ghz, my fsb is 310x12.5
vcore at 1.36v
memory frequency i dont remeber but less then 800,rated ram speed is 800
memory multiplier i dun remember but i always choose the 1 dat close to 800,
and if u are asking for ddr2 voltage control, i set it to normal...
right now trying to find stable oc at 3.5ghz at 280x12.5,vcore 1.24v,memory mlti 2.5 at 700.. running prime95 for almost 2hrs now..no error..is it stable enuf?

extra info bout mysef,btw is 24/7 play mean u never shutdown the pc everyday? if so, then im not a 24/7 person, my usage is maybe around 8-10 hrs a day, not straight 8-10hrs,but accumulated hrs per day, and i often shutdown after play my pc..so do i realy ned a stress test for 8hrs at least?

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Added on January 19, 2009, 1:00 pm

i hv test for 10hrs++, no error no warning, shud be stable right?

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Added on January 19, 2009, 1:13 pm, this with cpuz

This post has been edited by uzary: Jan 19 2009, 01:13 PM

ur e5200 oc kinda like mine.....try to increase the fsb as much as possible and play with low multiplier........3.5 for e52 is good already dow...

GTG

so how bout the torture test for 10hrs? no error no warning mean stable right?

Yups...



This post has been edited by lex: Jan 20 2009, 04:02 AM

topic closed, thank for all the help guys..