** The Official ASUS P5N-E SLI & Ultra 650i Thread **

andyh said:
Any one know at roughly what sort of FSB you need to stick thr NB voltage up to 1.7 to get a stable system?
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It's totally system dependent. If your system stops booting or becomes unstable at 1.5xV then try 1.7xV otherwise keep as low as possible to keep the heat down. I'm pretty sure someone posted a 3.5GHz overclock using the 1.3xV option at some point.
 
AFK_Matrix said:
Lastly would you master overclockers think that I could get an E6600 to 4ghz bearing in mind its gonna be on water, but the Northbridge won't be.
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It's unlikely. It's possible, but I wouldn't hold my breath waiting for it. You're looking for an L628B or L629B stepping ideally as those have been known to do 4Ghz on air. You also might want to look at a 975 series motherboard as most of the monster E6600 overclocks have been done with those.

And do bear in mind that a 'golden stepping' E6300 or E6400 is just as likely to do 4GHz as a 'golden stepping' E6600. You just need more FSB to do it. The 965 and 650i chipset boards are not short of FSB, but the ASUS 650i does need either active or water cooling on the Northbridge for best results.
 
I found that I couldnt get past 2.85ghz on my e6300 despite upping the vcore to 1.5+.1. I have upped the nb voltage to 1.7 and it is orthos stable (3 hours worth) at 2.95ghz with 1.275 on the vcore. I wish there was any easy way to monitor nb temps though. I have a hr05 with a 80mm fan on it, the heatpipes are warm to the toucn but i can keep my fingers on them so i asume its doing its job well.
 
WJA96 said:
It's unlikely. It's possible, but I wouldn't hold my breath waiting for it. You're looking for an L628B or L629B stepping ideally as those have been known to do 4Ghz on air. You also might want to look at a 975 series motherboard as most of the monster E6600 overclocks have been done with those.

And do bear in mind that a 'golden stepping' E6300 or E6400 is just as likely to do 4GHz as a 'golden stepping' E6600. You just need more FSB to do it. The 965 and 650i chipset boards are not short of FSB, but the ASUS 650i does need either active or water cooling on the Northbridge for best results.
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Thanks for the info mate and yeah i won't be unhappy if i don't get 4ghz, i payed a stupid price for my opty 146 cos it did 3 ghz and i never got it to do that lol (probably my carp overclocking lol) so I am not going to pay silly money again. And I will put either my jing ting with its 40mm fan on the nothrbridge (don't think it will fit though :() otherwise i'll stick a fan blowing over the northbridge. I assume that I could get 3.5 quite easily though?

What about the ram though? If i can save a few bob on that it would be good.
 
Hayley-K said:
Memory is running at 800mhz with auto timings but looking at them in cpu-z they are a bit crazy 5-5-5-31!!
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Mine did similar, set it to spd manually and up the volts slightly ?


I had to switch to 1.7v on the NB after going to 1707 QDR. It crashed loading into windows with 1.5v, higher nb volts meant no problems. Ive kept it there since, not massively hotter imo :confused:
 
Got a quick question.

I built a new system based on the E6600.
I am taking it slow and am running at:-
425 * 8 = 3400MHz

In CPU-Z it reads as 425 * 8 = 3400MHz which is the bios settings
but in core temp beta 0.94 and Orthos it reads 3825.12MHz - 478.14 * 8

Why do they not read the same? :confused:
 
so which resistor is the one to stroke lovingly on with a pencil then??

26.jpg


or

p5neslipencilmodvi2.jpg
 
Hesky82 said:
cheers pegasus, it seemed to work pretty well for you, so has it definitely helped stabilize your max overclock that wasn’t quite possible before the mod??
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by how much did the vdroop mod help?
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Using Speedfan to check, my VCore stays the same whether im at the desktop or running Orthos, i dont know how acurate Speedfan is but im 8 hours stable at 3.3 on my e6300. stopped the test at 8 hours btw. ive run the most CPU demanding games i have (LOMAC, COH, MTW2) and nothing has made the system fall over. Before the mod i couldnt get 3.2 stable for any more than an hour.
Im just working up my RAM speeds at the mo but once thats done i'l go for 3.4 and see how that goes.BTW, 3.3ghz is stable on less volts than when 3.2 was causing system resets.
Orthos has only pushed my temps above 50C (briefly at 52C) with a room temp of 23C.
 
Sorry for being a noob but never done any pencil mods etc to a mobo. On that bottom pic would you just put a few pencil strokes to the top of that resistor thing?

Also as already asked I take it this won't damage the board or anything?
 
AFK_Matrix said:
Sorry for being a noob but never done any pencil mods etc to a mobo. On that bottom pic would you just put a few pencil strokes to the top of that resistor thing?

Also as already asked I take it this won't damage the board or anything?
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Everything is done at your own risk im afraid.
As for the pencil mod, i think the girls way is to use electrical equipment and measure resistance, the blokes way is to rub a pencil along the contact forgetting how many times you have done it then boot the system hoping all goes well.
It did for me and i now have a rock steady VCore.
 
Yeah i pretty much thought the mod would be at me own risk lol. But unless i have a shakey hand when i do it I think i'll be ok. Just to clarify the pencil to use is a 2b right? Or do I have to get one of these conductive pen things?
 
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