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First timer OCer needs help

G

goodgod

Weaksauce
Joined
Apr 28, 2006
Messages
77
Hey guys,

It's my first attempt OC'ing, and after reading alot of guides, i'm still not sure on what's the best way to start this.

My specs: E6850 @ 3.0 ghz (9X333) @ 1.33125v
P5N-E SLI (NB @ 1.208v)
Patriot 2X1 gb ddr2-800 (4-4-4-12 2t @ 2.085v @ 800 mhz)
The ram is unlinked with a 6:5 ratio right now
Evga 8800 GTS 320 mb (stock)
Custom water cooling (apogee, ek gpu wb, swiftech triple rad, dcc+ with modified top, ek nb wb)

Temps (in celcius) : Core Temp: 25/32 (idle/orthos load)
Real Temp: 31/42
Hardware Monitor: 37/47
SpeedFan: 23/32
Ambient: around 23

My goal is to get a pretty high overclock since I have this cooling capacity. (while keeping the voltages low enough so my system doesn't degrade over time, and my temps low)

The voltages you see are set on manual, and are orthos stable for hours.

Basically, I need to know what to change first. I tried to go for a 350 FSB at the beginning (9X350=3150 mhz) but it failed the orthos test after 1 min.

Are there some ratios I have to respect when increasing the fsb? Should I lower the multi first, or the ram? I heard that some fsb numbers will fail the stability test, but that some higher numbers will pass it, is it true?

Thanks in advance. :rolleyes:
 
Try to look at some specific threads about your motherboard, like this or that.
In those threads you'll find a lot of valuable info. ;)
 
thanks alot seb1, that helped me alot.

Right now I managed to get to 3.6 ghz!!



Vcore = 1.375v
NB= 1.563v
FSB = 400 mhz (1600)
Ram = 400 mhz (800), 4-4-4-12 2T
Divider = 1:1

It's rock solid stable, it ran the infamous intel burn test easy, without errors.

Temps (in celcius), according to real temp: 40 idle 51load (with Orthos)

And when running Intel burn test: 40 idle 62 load

I think I have more room with my kind of cooling to overclock even more, maybe to 3.7-3.8 ghz??

Right now my ram is at its max, so I need to try and crank up that FSB right? Because it will be impossible to keep my ram linked (1:1 ram/FSB ratio), what divider should I aim for? Does it matter at all?

Thanks guys. :cool:
 
Nice to see that those threads were good for you. :)
The P5N-E SLI has a lot more RAM dividers comparing to an Intel chipset - in fact you can OC with the RAM being unlinked from the FSB - you have to set the desired memory frequency (800 MHz) and the board will find a ratio (like 6/10, 5/8, 7/10, 3/4, 13/16, 5/6 and so on...) to be at the nearest value to the 800 MHz.
Another thing, your Patriot RAM probably could hit 840-900 MHz and you can OC at 1:1 ratio too, but you have to crank up the voltage for them. Have you tried to use your RAM at 1T Command Rate with relaxed timings (5-5-5-18) and a lower voltage at 800 MHz?
Because I had a Gigabyte board with the same chipset and I had almost the same (benchmark) results a with lower temperature at the RAM chips. :cool:
 
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