Need OC advice on L2 e6400

O

Onibus

Weaksauce
Joined
Mar 15, 2007
Messages
125
I've been playing with overclocking, but have ran into a problem that I'm hoping to get some advice on.
A little information:
I've found that my e6400 (L2 stepping Conroe) is happy at 3.25ghz @ 1.4v.
Asus P5N-E bios 0401
2x Super Talents are running @ 406mhz 4-5-4-12 1:1 @ 2.1v
Northbridge voltage is @ 1.5xxv. Any lower than 1.5xx = no boot.
Tuniq Tower 120
Antec NeoHE 500~w.

I've tried going above 3.3+ghz but have found that my system doesn't like it for whatever reason.
I was wondering if anyone who has a Conroe e6400 L2 stepping has had success with going higher than 3.3ghz. I've tried going higher @ 5-5-5-15 [stock] 2.1v on memory.

Should I try increasing a certain voltage to achieve a faster overclock? Should I increase my vcore to 1.5v or memory voltage to 2.2v?
Also, is anything higher than 1.5xxv on northbridge bad? My heatspread is pretty hot to the touch (think I might need to buy an aftermarket heatsink).
 
I can't get 3.2 at all on mine. Tell me, does that equivalent FSB work fine with the x7 multiplier?

I'm almost an hour Orthos stable at 3.0 right now (429x7).

What is the default NB voltage on the 965P?
 
Depends what kind of ram you have. I'm running @ x8 multiplier so I can lower my timings just a little.
If what you're asking is if 406mhz will work with a x7 multiplier, I'm pretty sure the answer is yes.

Not sure what the default NB voltage is on a 965P, but mine was Auto on the P5N-E. I bumped it up to 1.5xx volts just to make it boot into windows (which seems to work fine now).
I'm sure that if you bumped up some voltages (similar to mine), you could reach 3.25ghz or better.

Trying to find out if my northbridge voltage is too higher or just right, and if I can tweak some other voltages to get higher OC. Heard the L2 stepping isn't great with low voltage, so I hope I can get some help as to what I can bump up to go faster.
 
what are your idle/load temps? 3.25 is the top for alot of 6400s. you can try putting your ram back to 5-5-5 (4-5-4 vs. 5-5-5 gives VERY little performance gain for core2 systems) that will atleast help. i cant tell you to raise your RAM voltage because i dont know what ram your using. you can try increasing vcore to 1.45, the tuniq should be able to handle it though i dont know what your temps are. its not worth going to 1.5v even if it helps you get a little higher speed, the extra heat/stress it produces is just not worth the extra 100mhz.
 
I got 3.0 to become officially stable (429x7) with a 1.41825 bios vcore as well as 2.1 VDimm at 4-4-4-15. I have EIST enabled so it drops the multiplier down to 6 when nothing's going on.

Idle 30c, load 60.
 
According to coretemps, my temp on both cores is roughly 45C, peaking at around 72C.
But speedfan shows both cores at 30C, so iono what to believe.
 
i wouldnt go any higher then if your load temps are at 72c and if it were my computer i wouldnt go higher then 65-70 but thats kinda personal preference. coretemp is probably correct, speedfan's 30c seems low even for idle, 45 is closer to the idle i would expect. you have reached the limit.
 
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