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just finihsed my new build - need some help overclocking

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April 30, 2007 10:23:30 AM

i just finished building a pc that i have spent a lot of thought and $$(2500) on. so i want to get the most out of it.
specs:
asus striker 680i sli
1x2gb corsair xms2 pc6400 800mhz cl 5
xfx geforce 8800gtx
e6600 @3.54ghz
creative x-fi something
thermaltek 850w psu
big ass case lots of fans
and a zalman 9700
dont think i forgot anything....
well as i was saying i'm looking to get the most out of my system so i started to overclocking it got to 3.54 stable ( :cry:  i really wanted to 3.6)
i raised my vcore voltage to 1.71v
and my CPU VTT (dont really know what it is) to 1.55v
is that ok?
can i raise my vcore any further?
should i overclock the gtx?
should i try to my memory on tighter timings?how?
i really wanna hit higher on 3dmark06 currently on 3091
please help i know its a lot of questions but helping me with only one will be great help
April 30, 2007 10:49:59 AM

Wow, you're sitting on a very high Vcore, might want to think about Electron Migration.

That 1.55V might the (G)MCH? 1.55V seemed okay.

Post more information. How does your temperature look like, along with settings and so on, and we'll see what we can do to help you with.

Anyway, 3.54GHz is pretty good, if I were you, I would consider lowering the Vcore, as it's a bit high.

Have you fully stress tested it, and confirmed stable? at the lowest Vcore possible?
April 30, 2007 11:00:45 AM

Quote:
That 1.55V might the (G)MCH? 1.55V seemed okay.
sorry man didnt understand u..

my temps are like 34-39 at low usage high usage the temps dont go over 47
but the hsf begins to work harder
mobo 35-40c

i did'nt do like a long stress test but i did run 3dmark06 with high settings.. thats what crash me when i was 3.58...

can a high vcore damage my cpu?
how much to lower it?
Related resources
April 30, 2007 11:06:41 AM

3dMark doesn't test much on your CPU, you need Prime95 or Orthos to do so.

Your temperature looks fine to me, you could probably bring it further, but your Vcore seemed a little too high, which you might want to be concerned about.
April 30, 2007 12:22:50 PM

I would wait 2-3 months before overclocking so the components burn in, if you have not already done so.
April 30, 2007 12:29:33 PM

Quote:
I would wait 2-3 months before overclocking so the components burn in, if you have not already done so.


I second this. I waited about 2 months before OCing mine. 1.71V is INSANE. You don't really want to go over 1.5V on air. Back it down. Let it run for a month or two and try again. That means you are running less than a 400MHz FSB? you should be able to acheive this without the insane voltages. Install TAT and see what temps you get from this. I am willing to be your temps are from the Tcase not Tjunctions. I think I hit about 35C at most when running intense games. 47C is pretty nuts.
April 30, 2007 4:04:14 PM

Quote:
evongugg wrote:
I would wait 2-3 months before overclocking so the components burn in, if you have not already done so.

too late for that
i can't wait any way.. very impulsive...

can 40+ temps damage the cpu?
can 1.7 vcore voltage(if temps are ok)?

if i overclock my gpu how much to aim for? memory?[/quote]
April 30, 2007 4:42:27 PM

you should really lower your vcore to about 1.55 then run prime95 for ages, if it buggers up give it a little bit more vcore then try again. 1.7 as far as i know is far too much.

if you really need the extra performance from your 8800gtx knock it up 50mhz for both core and memory, that should do ya :p 
April 30, 2007 4:46:48 PM

you could also look at adjusting your memory timings. With your ram, you should be able to get to 4-4-4-12 at 900mhz.
April 30, 2007 4:49:49 PM

40+C will not damage your CPU, but 1.7V will cause electron migration, and your system might not last you more than 2 years? That I don't know, as I haven't really attempted to run Vcore at such high values for C2Ds.
April 30, 2007 5:22:11 PM

okay...
so i've manged to get vcore down to about 1.59 without dropping fsb
it droped my temps now they dont ever go above 34 so do you think its enough? (come on i dont wanna drop the fsb its not high enough anyway :(  )

Quote:
you could also look at adjusting your memory timings. With your ram, you should be able to get to 4-4-4-12 at 900mhz


i'm a total noob at this is my first overclock so i have a few questions
a. can cpu handle 450mhz fsb?(450x8 = 3600 oh ya!! :D  ) i know my mobo can
b. how do i do that that? i mean lower the timings?

i'll run primecpu all night tonight and tell what happened..(8pm for me)

thank all you've been very helpful please dont give up on me...
April 30, 2007 5:33:50 PM

read next post
April 30, 2007 5:37:34 PM

there will be an option in your bios to do this. haven't used a 680i before so i cant really tell you exactly what to do. look around and you should find something.

Your vcore is decent enough now. Dropping your vcore doesn't mean you are lowering your fsb man, it just means you aren't forcing as much juice into the baby.

Also, whats so low about your fsb :S it looks like its goin fast enough to me. It's not bottlenecking anything. If you really must just bump it up the extra bit and see if it buggers up or not. But i honestly don't see the point in going from 3.54 to 3.6
April 30, 2007 5:55:43 PM

Quote:
Dropping your vcore doesn't mean you are lowering your fsb man

i know its just the lowest vcore it will run
and getting to 3.6 isnt for practical reasons you know its for the challenge of it.
i tried bump the fsb a little high 3.54 is as fast as it will run stable
but i'll try to lower the multiplier and raise fsb to 450 and lower mem timings
maybe that will work

also have trouble with overclocking gtx how do i do that?
April 30, 2007 6:14:04 PM

worth a shot dude.

To overclock your GTX i would suggest downloading RivaTuner. you should be able to find your way around it. Just dont go too high, too fast. And monitor your temps
April 30, 2007 6:57:54 PM

i know this is out to topic but was anxious to know from where did u get a 1x2gb corsair xms2 pc6400 800mhz cl 5?
April 30, 2007 7:06:35 PM

Quote:
okay...
so i've manged to get vcore down to about 1.59 without dropping fsb
it droped my temps now they dont ever go above 34 so do you think its enough? (come on i dont wanna drop the fsb its not high enough anyway :(  )
[


The temperatures you should worry about are when it is under 100% load. You should run TAT on it and see what the temperature reads. I've found that TAT puts the maximum stress on the cpu, even more than Orthos. However, the temps displayed in TAT are 15C higher than actual. So, on TAT you should avoid temps above 75C (60C actual). Speedfan will show the actual temps. So you can use that while running TAT. With your high voltage and FSB, I'd be ready to quickly stop TAT if/when the temperatures get too high.
April 30, 2007 8:39:43 PM

Good job on reducing the Vcore, but yet, it's still high.
That's a very low temp, you might be able to overclock it and shoot for the moon.
April 30, 2007 8:42:59 PM

i got my cpu running at 3.6(yay) and the mem at 800mhz 4-4-4-12
vcore 1.61 temps wont go above 40
had to rasie the nb and sb a bit
nb @ 1.45
sb @ 1.6
mem @ 2 (think i'll drop'm know to like 1.97)

Quote:

where did u get a 1x2gb corsair xms2 pc6400 800mhz cl 5?

newegg

Quote:

You should run TAT on it and see what the temperature reads

thanks for the info

so i think i 'm done for today i think tomarrow i might drop the multiplayer rasie fsb to 450.
thanks for all the help i'll stress test it tonight and post tommarow
p.s
if my computer is going to explode please tell me
April 30, 2007 10:45:14 PM

Quote:

Like I said.. The only gain you're getting from 3.4 to 3.6 is in synthetic benchmarks


i know..(and ain't that a shame)
but still.
reduced my vcore to 1.56 but still i know it's high.....
brought gtx to core - 628 mem - 955
May 1, 2007 3:34:34 PM

Good job on hitting 3.6GHz, with that temp, you could probably go higher, but your Vcore is high, as I mentioned earlier

Now, good luck on your 8800GTX. :) 

Just make sure you observe the temperature, you don't want to be blowing up your expensive machine. Your $2500 rig is kicking my $456 rig's ass.
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