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overclocking the 955 1.375 @3.7ghz help

post #1 of 22
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i been running prime 95 for 1 hour seems good and stable but i under volted it to 1.375 is this normal i know the stock v core is 1.4 but it seems to like 1.375 @3.7ghz my memory is rated at 1800 but the board will not oc to that take a look i hope i did not leave anything out
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red devil
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post #2 of 22
clock teh cpu-nb higher...2400ghz to 2600ghz if you can.
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post #3 of 22
i got my 955 at 16* 250 multiplier. wich is 4 ghz.
memory is 1600mhz (pc12800) @ 1667 9-9-9-27 t1 1.65 volts
******NB @ 2500mhz******** put nb at about 2500-3000- at 300 youy may need to increase nb voltage. but donnt take it to far...
******HT link 2000 MHZ******
vcore for CPU is 1.4
volt NB is on aouto.
LLC (Load Line Calibration) Enabled.... if i dint have it enabled whenever i started p95 my volt on cpu would acutually drop from high to a lower voltage.!
and remember to turn off Cool and quite happy clocking!
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post #4 of 22
Nice oc man, i'm overclocking at 3750MHz 235*16 1.440v. So i think your voltage is mint.This may mean more head room to overclock? And i think you should try push up that north-bridge and get more performance out of it.
post #5 of 22
Quote:
Originally Posted by Nipples View Post
Nice oc man, i'm overclocking at 3750MHz 235*16 1.440v. So i think your voltage is mint.This may mean more head room to overclock? And i think you should try push up that north-bridge and get more performance out of it.
welll most voltages @ 4 ghz are 1.45 so if considering my self pretty good at 1.4 not having to go .1.45. i am new to overclocking and i dont know about headromm i prob wont go further on my air cooler (noctua NH-D14) anyway. i would but my Northbrid will only do certain incremeantss lieke from 2500 to 2750- 3000 it dosent have any more options i would go for 2800 if i had the option. i dont hink i will be able to push 3000. my NB is atm at 31c at 2500 mhz.. but dont wanna push it further.
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post #6 of 22
ohk ,gratz on hitting 4GHz my cpu hit the wall at 3.7 and you reference clock might change the nb increment but idk.
post #7 of 22
Quote:
Originally Posted by Nipples View Post
ohk ,gratz on hitting 4GHz my cpu hit the wall at 3.7 and you reference clock might change the nb increment but idk.
what is is HT link mhz? nad what is your NB at? and what mutlipier are u using?
and what kind of memory do u have and what voltage is you memory at?

if posssbile post screen of CPU-id and memory. do u have Coll nad wuite on and do u have LLC enabled? (load Line Calibration) does your voltage drop as soon as you use Prime 95? (use CPU-Z while u start prime95.

EDIT: are u runnning a C3 revison? sorry didnt read to closely but try 16*250 multiplier. and NB as close to 2600 mhz as possible i can omly run at 2500-2750-3000 but u may be able to run diffrent.. run HT link ant 2000MHZ max not over it.. if u have 1600 mhz memory run it at 1667 or 1333 depends of yor preference-- if u run at 1667 try to cruch timing.. i havent done it cuse im noob at that but it runs smoothly at 9-9-9-24 for me at 1667mhz but it does runs aloso smoothly at 1333 mhz.
Edited by funkyslayer - 3/4/11 at 5:30pm
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post #8 of 22
Hey im not sure what the HTlink is but lots of people say its best at 2GHz, With my north bridge i left the multi at stock but bumped the reference clock ( i think will check soon) and is running at 2812MHz. My ram in cheap kingston ddr2 value ram with default voltages. and when i started prime my voltage had a little spike.

Edit:nah im running the c2 unfortunately, and my north bridge multiplier is 12.
Edited by Nipples - 3/4/11 at 6:26pm
post #9 of 22
Thread Starter 
yea how u get ur ram to run a t1 this is the mem i got Kingston HyperX 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1800 http://www.newegg.com/Product/Produc...82E16820104183 ant it wont run a t1 at 1600
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red devil
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post #10 of 22
command rate 2t
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