overclocking intel core 2 duo e6850 3.0ghz - Page 2

Chai · 26th Feb 2009, 09:50 AM

You should not exceed IF you are not overclocking.

When you are overclocking, it's up to you to test for the stability.

I managed to get my old E6850 up to 3.6GHz without voltage bump, that's 400MHz FSB.

coolwhip · 26th Feb 2009, 09:56 AM

ok i think i understand now that my fsb should be at 1600 will give me a 400 mhz cpu will give me the 3.6 ghz and my ram being pc26400 will now be at the 400 mhz.. which is really X 2 to give me that 800mhz? and thats a 1:1 ratio?

coolwhip · 26th Feb 2009, 12:17 PM

I have been having trouble understanding the ram dividers and how it all works.. also not sure about what it is to exceed mhz.. in other words a pc2 6400 800 memory speed.. when using cpu-z shows it as 400mhz since thats the clock speed. so now when overclocking your cpu do you not want to exceed 400 mhz clock speed?? for an ideal system i would need a pc2 5400 which is 667mhz... clock speed 333mhz so that would be 1:1 ratio with my cpu since the cpu is at 333mhz... but since i have pc2 6400 at 400 mhz i can put the ratio to 5:4 so that if i raise my cpu mhz without exceeding the 400 mhz of the memory this way i can see where my cpu is unstable before my memory??

Chai · 26th Feb 2009, 02:10 PM

You are really confusing yourself with the base clock and the double pump for DDR2, likewise for FSB which is 'quad pump'.

If you convert everything to base clock, everything will make sense to you.

I'm not sure about your motherboard, but on my Abit, everything is in base clock, including RAM at 333MHz (DDR2 667/DDR2 5300), 333MHz (1333MHz).

Like Adrian said before, there's no point in overclocking the memory and tweaking the latency. There's not much difference doing that.

The reason for changing the ratio to 1:1 is mainly to allow overclocking the processor to a much higher level, like beyond 400MHz FSB.

coolwhip · 26th Feb 2009, 04:47 PM

ok now i put the ratio to 1:1 and i got a warning error on the post test and it told me to go back to the bios to fix the cpu speed. now everything at base speed my ddr2 6400 is at 400 mhz and my base for fsb is 333... now wont this cause a problem if i put it to a 1:1 ratio? wont the memory actually be underclocked now? and become 333mhz?

Chai · 26th Feb 2009, 05:26 PM

Quote:

Originally Posted by coolwhip

ok now i put the ratio to 1:1 and i got a warning error on the post test and it told me to go back to the bios to fix the cpu speed. now everything at base speed my ddr2 6400 is at 400 mhz and my base for fsb is 333... now wont this cause a problem if i put it to a 1:1 ratio? wont the memory actually be underclocked now? and become 333mhz?

Yup, it should. I don't know why your system can't handle 333MHz. Maybe your RAM timings are on SPD, you should fix it to the rated ratings.

coolwhip · 26th Feb 2009, 05:32 PM

on my motherboard all of the speeds arent base speeds so the mem shows 800 the fsb shows 1333... i looked over a guide for the motherboard and it says if i select unlinked i can adjust the fsb mhz manually without affecting the mem mhz. so is this the best way to adjust the cpu in your opinion? in other words i can make the cpu run at 343 mhz instead of the 333 by adjusting the fsb to 1372 and i can leave the mem mhz at 800.

coolwhip · 26th Feb 2009, 06:19 PM

Ok now i got it in the 1:1 ratio... on my motherboard it has set ratios 1:1 5:4 3:2 ... and than it has synced mode.... now when i put it to 1:1 (on my motherboard the speeds are actual.. not base speeds) the memory mhz jumped from 800 to i forgot exactly but like 1066 or around that number.. when i put it into sync mode i got that 667 mhz that we were looking for.. and when i can cpu-z it shows as 1:1 ratio and running at 333 mhz. Now everytime i change something i look at my nvidia monitor and the fsb is at 1.4 but in the bios it in auto so. should i lower that voltage or do you think i need it that high?

Chai · 26th Feb 2009, 09:02 PM

Quote:

Originally Posted by coolwhip

Ok now i got it in the 1:1 ratio... on my motherboard it has set ratios 1:1 5:4 3:2 ... and than it has synced mode.... now when i put it to 1:1 (on my motherboard the speeds are actual.. not base speeds) the memory mhz jumped from 800 to i forgot exactly but like 1066 or around that number.. when i put it into sync mode i got that 667 mhz that we were looking for.. and when i can cpu-z it shows as 1:1 ratio and running at 333 mhz. Now everytime i change something i look at my nvidia monitor and the fsb is at 1.4 but in the bios it in auto so. should i lower that voltage or do you think i need it that high?

If you are overclocking, leave the voltage as it is.

coolwhip · 27th Feb 2009, 11:05 AM

I have been reading on the way to overclock my board and there are 2 options.. i can do linked/synced... wich will give me the 1:1 ratio but as i adjust the fsb the cpu and memory adjusts.. but my mem 800 mhz will be reduced to 667 so i have head room there... in unlinked i can leave my memory at 800 and adjust the fsb to raise the cpu without touching the memory.. in your opinion should i use the linked/synced or the unlinked??? i plan on trying both ways but just curious what you think?

26th Feb 2009, 09:50 AM	#11 (permalink)
Chai Administrator Join Date: 6 Oct 2002 Location: Maranello Posts: 27,884 Reputation: 4630 Rep Power: 81	You should not exceed IF you are not overclocking. When you are overclocking, it's up to you to test for the stability. I managed to get my old E6850 up to 3.6GHz without voltage bump, that's 400MHz FSB. __________________ Chai (Contributor & Forum Admin) http://www.techarp.com/

26th Feb 2009, 02:10 PM	#14 (permalink)
Chai Administrator Join Date: 6 Oct 2002 Location: Maranello Posts: 27,884 Reputation: 4630 Rep Power: 81	You are really confusing yourself with the base clock and the double pump for DDR2, likewise for FSB which is 'quad pump'. If you convert everything to base clock, everything will make sense to you. I'm not sure about your motherboard, but on my Abit, everything is in base clock, including RAM at 333MHz (DDR2 667/DDR2 5300), 333MHz (1333MHz). Like Adrian said before, there's no point in overclocking the memory and tweaking the latency. There's not much difference doing that. The reason for changing the ratio to 1:1 is mainly to allow overclocking the processor to a much higher level, like beyond 400MHz FSB. __________________ Chai (Contributor & Forum Admin) http://www.techarp.com/

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26th Feb 2009, 09:56 AM	#12 (permalink)
coolwhip Newbie Join Date: 24 Feb 2009 Posts: 19 Reputation: 0 Rep Power: 0	ok i think i understand now that my fsb should be at 1600 will give me a 400 mhz cpu will give me the 3.6 ghz and my ram being pc26400 will now be at the 400 mhz.. which is really X 2 to give me that 800mhz? and thats a 1:1 ratio?

26th Feb 2009, 12:17 PM	#13 (permalink)
coolwhip Newbie Join Date: 24 Feb 2009 Posts: 19 Reputation: 0 Rep Power: 0	I have been having trouble understanding the ram dividers and how it all works.. also not sure about what it is to exceed mhz.. in other words a pc2 6400 800 memory speed.. when using cpu-z shows it as 400mhz since thats the clock speed. so now when overclocking your cpu do you not want to exceed 400 mhz clock speed?? for an ideal system i would need a pc2 5400 which is 667mhz... clock speed 333mhz so that would be 1:1 ratio with my cpu since the cpu is at 333mhz... but since i have pc2 6400 at 400 mhz i can put the ratio to 5:4 so that if i raise my cpu mhz without exceeding the 400 mhz of the memory this way i can see where my cpu is unstable before my memory??

26th Feb 2009, 04:47 PM	#15 (permalink)
coolwhip Newbie Join Date: 24 Feb 2009 Posts: 19 Reputation: 0 Rep Power: 0	ok now i put the ratio to 1:1 and i got a warning error on the post test and it told me to go back to the bios to fix the cpu speed. now everything at base speed my ddr2 6400 is at 400 mhz and my base for fsb is 333... now wont this cause a problem if i put it to a 1:1 ratio? wont the memory actually be underclocked now? and become 333mhz?

26th Feb 2009, 05:32 PM	#17 (permalink)
coolwhip Newbie Join Date: 24 Feb 2009 Posts: 19 Reputation: 0 Rep Power: 0	on my motherboard all of the speeds arent base speeds so the mem shows 800 the fsb shows 1333... i looked over a guide for the motherboard and it says if i select unlinked i can adjust the fsb mhz manually without affecting the mem mhz. so is this the best way to adjust the cpu in your opinion? in other words i can make the cpu run at 343 mhz instead of the 333 by adjusting the fsb to 1372 and i can leave the mem mhz at 800.

26th Feb 2009, 06:19 PM	#18 (permalink)
coolwhip Newbie Join Date: 24 Feb 2009 Posts: 19 Reputation: 0 Rep Power: 0	Ok now i got it in the 1:1 ratio... on my motherboard it has set ratios 1:1 5:4 3:2 ... and than it has synced mode.... now when i put it to 1:1 (on my motherboard the speeds are actual.. not base speeds) the memory mhz jumped from 800 to i forgot exactly but like 1066 or around that number.. when i put it into sync mode i got that 667 mhz that we were looking for.. and when i can cpu-z it shows as 1:1 ratio and running at 333 mhz. Now everytime i change something i look at my nvidia monitor and the fsb is at 1.4 but in the bios it in auto so. should i lower that voltage or do you think i need it that high?

27th Feb 2009, 11:05 AM	#20 (permalink)
coolwhip Newbie Join Date: 24 Feb 2009 Posts: 19 Reputation: 0 Rep Power: 0	I have been reading on the way to overclock my board and there are 2 options.. i can do linked/synced... wich will give me the 1:1 ratio but as i adjust the fsb the cpu and memory adjusts.. but my mem 800 mhz will be reduced to 667 so i have head room there... in unlinked i can leave my memory at 800 and adjust the fsb to raise the cpu without touching the memory.. in your opinion should i use the linked/synced or the unlinked??? i plan on trying both ways but just curious what you think?