Help me with my OC

Negative Decibel

Negative Decibel

2[H]4U
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Dec 13, 2005
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[H]ey!

I've been working on OC my new rig (specs in sig) for about a week now. This is my first real OC, and I have learned so much that I have never knew before...) So far no major problems, But, I cant get much past 2.93 GHz Before I start getting errors in Orthos, or Windows starts crashing.
I know this CPU can do more. Here's what I got my BIOS at so far...

I've disabled: All Spread Spectrums, C1E, CPU Thermal Control, Linkboost, and
Limit CPUID MaxVal.

I changed FSB memory clock mode, to Unlinked.

I've mannually set voltages:

CPU Core: 1.4v
CPU FSB: 1.5v
Memory : 2.1v
nForce SSP: 1.5v


nForce MCP, and HT nForce SSP <-> MCP are still set at Auto, with their voltages at 1.5v, and 1.2v, respectively...

My multipler is still at 9x. (havn't changed it at all)
FSB (QDR MHz) is 1304
and Mem (DDR Mhz is at 800)

Other issues I'm having is that CPU-Z says that my Processor voltage is @ 1.368V, not at the 1.4V I chagnged it to in BIOS.

Help me get to a stable good OC, PLease!!!
Thanks

edit: right now my temps are 32C idle, and 55C on load.
 
Well, according to all of the OC guides I've read, including Nvidia's Official guide to over clocking the 680i, yeah. Why? Did I screw up somewhere?
 
Fox_T said:
oops, do you need to disable those?
Click to expand...

n3g471v3 d3c1b3l said:
Well, according to all of the OC guides I've read, including Nvidia's Official guide to over clocking the 680i, yeah. Why? Did I screw up somewhere?
Click to expand...

Yep, best to disable all of those features. CPU-Z, i think, is reporting a vdroop in your CPU voltage, which isn't too out of the ordinary. With the voltages you have listed, you should be able to sail up to 400Mhz FSB pretty easily, but you might have to raise the vCore up a notch. May i ask, why you changed the nForce SSP voltage? I'm thinking of getting this board and i don't know what all of these "n-" voltages do.
 
Mansize_tissue said:
Yep, best to disable all of those features. CPU-Z, i think, is reporting a vdroop in your CPU voltage, which isn't too out of the ordinary. With the voltages you have listed, you should be able to sail up to 400Mhz FSB pretty easily, but you might have to raise the vCore up a notch. May i ask, why you changed the nForce SSP voltage? I'm thinking of getting this board and i don't know what all of these "n-" voltages do.
Click to expand...

I changed the nForce SSP voltage according to a guide I read somewhere. (It told me to adjust all of the voltages to what I changed them to. What's funny about my core voltage, is not only that CPU-Z reports it at 1.36, but It will drop even lower when I put a full load on the cpu.

edit: this is the guide that I used...
http://pc.ign.com/articles/747/747606p1.html
 
n3g471v3 d3c1b3l said:
Well, according to all of the OC guides I've read, including Nvidia's Official guide to over clocking the 680i, yeah. Why? Did I screw up somewhere?
Click to expand...

No, I don't think so... its just that I oced mine to 3.7 today without disabling any of them(apart from SPD timing), coz i got no clue to what they mean:p
 
I think just try to play aroud with your BIOS settings till you get it to be stable in win at least, i didn't try timings - left them as they are, mostly ive changed chipset, ddr, vcore, couple of others, just dont go to high and keep an eye on yo temps. if its any help
 
: Bring the memory to a 1:1 ratio

Disable anything Throttle or Spectrum Related, C1E, Speedstep and Thermal Control

Set your FSB and RAM to unlinked

Set your FSB to 1600 and your RAM to 800mhz

Set your RAM to the advertised Voltage and Timings.

CPU Voltage to 1.45V

FSB V to 1.4V

All other voltages leave as auto.

See how that goes, if it doesn't work, up the CPU voltage to 1.5V
 
orion23 said:
: Bring the memory to a 1:1 ratio

Disable anything Throttle or Spectrum Related, C1E, Speedstep and Thermal Control

Set your FSB and RAM to unlinked

Set your FSB to 1600 and your RAM to 800mhz

Set your RAM to the advertised Voltage and Timings.

CPU Voltage to 1.45V

FSB V to 1.4V

All other voltages leave as auto.

See how that goes, if it doesn't work, up the CPU voltage to 1.5V
Click to expand...

As I am fairly new to overclocking, I don't quite understand the 1:1 ratio. Does that mean that the cpu's fsb is the same as the memory? That would make things more synchronized, right?, and is that the ratio that I find in CPU-Z, under the memory tab, where it says FSB : DRAM?

Update:: I brought up the core voltage to 1.425V. CPU-Z now reads 1.392-1.4 V... Then I managed to bring my FSB (QDR) to 1324... steady as she goes....

Update question... Should I be using TAT, or Core Temp to more accurately check my temps?
 
n3g471v3 d3c1b3l said:
As I am fairly new to overclocking, I don't quite understand the 1:1 ratio. Does that mean that the cpu's fsb is the same as the memory? That would make things more synchronized, right?, and is that the ratio that I find in CPU-Z, under the memory tab, where it says FSB : DRAM?

Update:: I brought up the core voltage to 1.425V. CPU-Z now reads 1.392-1.4 V... Then I managed to bring my FSB (QDR) to 1324... steady as she goes....

Update question... Should I be using TAT, or Core Temp to more accurately check my temps?
Click to expand...

Since you're using a 680i board you don't really need to worry about FSB:RAM ratios. But from what you've said, i think you get the idea. So if the RAM is in "Linked" mode, i believe, it will automatically be set to the same frequency as the FSB, but it's better to set it manually to it's rated frequency and timings.

What are your temperature readings on TAT and Core Temp? Core Temp probably gives a more accurate reading. I bet, with those voltages, you'd be able to hit 1600 FSB (QDR) pretty easily, depending on your temperatures.
 
Mansize_tissue said:
Since you're using a 680i board you don't really need to worry about FSB:RAM ratios. But from what you've said, i think you get the idea. So if the RAM is in "Linked" mode, i believe, it will automatically be set to the same frequency as the FSB, but it's better to set it manually to it's rated frequency and timings.

What are your temperature readings on TAT and Core Temp? Core Temp probably gives a more accurate reading. I bet, with those voltages, you'd be able to hit 1600 FSB (QDR) pretty easily, depending on your temperatures.
Click to expand...

right now core temp is exactly 2 degrees cooler than TAT. Idleing at 29/32 degrees on each core. Haven't loaded the system down since my last voltage/FSB tweak. What's up with the Tjunction temp on Core Temp? It's a steady 85C...
 
Using the 1:1 ration is best when trying to find the maximum overclock.

Your RAM @ 800mhz should allow you to go to 3.6ghz, as long as your CPU can do it as well.

Try a 1600 FSB and 800mhz RAM with 1.5V on the CPU (after the drop is should read 1.46 or so)
 
n3g471v3 d3c1b3l said:
right now core temp is exactly 2 degrees cooler than TAT. Idleing at 29/32 degrees on each core. Haven't loaded the system down since my last voltage/FSB tweak. What's up with the Tjunction temp on Core Temp? It's a steady 85C...
Click to expand...

That's what i've always wanted to know. Anyone care to enlighten us as to what Tjunction is?
 
Yeah, wth is a tjunction? and if your cpu temps are around 85c, i(as a noob) suggest to shut it down
 
orion23 said:
Using the 1:1 ration is best when trying to find the maximum overclock.

Your RAM @ 800mhz should allow you to go to 3.6ghz, as long as your CPU can do it as well.

Try a 1600 FSB and 800mhz RAM with 1.5V on the CPU (after the drop is should read 1.46 or so)
Click to expand...

So, It wouldn't hurt to just jump back into the BIOS, and go strait up to 1600 @ 1.5v, instead of the piddly 40 mhz//025v jumps that I've been making?
 
its not reading anything Tjunction IS the temps reported by coretemp in the two boxes underneath, its just a reminder that at 85C the processor will thermal trip and you will crash/shutdown/freeze as the processor protects itself from burning up.


Skim thru this, you dont need to get bogged down in the details but there are some pretty easy to understand parts about c2d thermal and heatsink considerations.

http://download.intel.com/design/processor/designex/31559402.pdf
 
Well, I gave it a shot in the dark jumping to 1600 mhz, and 1.5v.... didn't work... then I tried 1334, and I got back into windows.... yay! got to 3 GHz!! I;m not done... just for tonight... anyone else got any ideas??
 
n3g471v3 d3c1b3l said:
Well, I gave it a shot in the dark jumping to 1600 mhz, and 1.5v.... didn't work... then I tried 1334, and I got back into windows.... yay! got to 3 GHz!! I;m not done... just for tonight... anyone else got any ideas??
Click to expand...

Well, what about your memory timings? Did you set those manually, or do you have them as "SPD" ?

If done manually, make sure you choose 2T instead of 1T since @ 800mhz or move it is very hard to get 1T working.

Not all CPUs can reach 3.6ghz, some can with little voltage, others need a lot of voltage, but the only way to find out how yours performs is by trying it.

The maximum voltage you should use on AIR is 1.55 V and make sure your temperatures are below 65c during loaed (Orthos, Prime95)

It's up to you if you want to use 1.55V just to see if it can do it, besided, after the V-drop, you'll really be playing with 1.52V or so.

Or with the 1.5V above, try 1400 FSB and 700 RAM for 3.15ghz. If it works, try a 1500 FSB and 750 RAM for 3.375ghz.

Oh, and did you install the chipset fan? (I hope so)
 
my memory timings are 4-4-4-12 2T. as they are rated. (@2.1v also.) Should I change them??

and yes. i installed the chipset fan. even before I decided on OCing, I thought it would be nice to run things as cool as possible,
 
sorry, meant qft....

anyway, should I loosen my timings? they are at 4-4-412 2T right now. That goes into more than I understand right now...
 
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