Sandy Bridge under SS : 2600K @4.6G max

[Eeky NoX]

Hello all,

 

My question is simple:

 

I tried to put my 2600K under Single Stage this week end with the UD7-B3 (bios: F3h)

Everything was ok at stock frequency and voltage, but issues appeared rising the vCore over 1.5v

 

I tried to set multi from x34 to x40 easely but over it was a pain in the "ice" ... though tested one by one to max out at x46.

 

When I can reach x56 stable (1.65v) under water and 5.486G max (x55)

 

So is there something I missed or is it just the SB lottery which gave me the bad number ?

 

In advance, thank you

[Massman]

did you ... enabled PLL override

[Christian Ney]

SB doesn't like cold you should know Sandy likes hot (beeing warmed)

[Eeky NoX]

Yeah sure, exactly the same settings as under water But as for exemple the mobo's probe is stuck at -10°C on cores

 

If i try to rise the multi over x46, it bugs and returns to deafault (x34) reactivating 4cores and HT -___-

 

Edit: I know Chris but I'm frustrated and don't have a modular SS ^^

[Turrican]

my ud4 also doesn't show lower than -10°C. it's ok.

but i have no problems with cascade cooling. it can do the same clocks as on air.

[Christian Ney]

Boot @ 46x then raise the multi under windows and let us know if it works

 

I have the same problem with my MSI board, x46 on the BIOS then x52 within Windows with MSI Control Center

[Eeky NoX]

I can't ET6 is totally bugged when the option is enabled in bios... I tried whatever I know during hours before I gave up.

[dinos22]

Sandy bridge seems to be a bit of a bitch to OC with SS. You have to go in baby steps. do a 4GHz OC with 1.25vcore, then bump vcore to 1.35 and then 1.45 and then 1.55 etc. After than change multi to 50 and then whatever your max is

 

that should get it to what you need. You can have a play and find out what the easiest way is to reach max OC. I just have a profile now, load that, increase vcore and then load 5.7Ghz profile and im good to go every time

[Eeky NoX]

That's pretty close to what I tried, but not so smoothy on vCore I agree. Thank you for the advice Dino, appreciate that mate

 

Admitting I'll give another try (not sure), what vCore I should'nt go over ? 1.70/1.75v ?

And, other point: if (atmo under water) I can partially post with x57 does it mean that I could get it if the above trick works ?

[Eeky NoX]

Another point coming to my mind: Could it be the insulation that makes trouble ?

I mean, the socket is surrounded with gum from the CPU to the caps. So could it be something covered which shouldn't ?

[Christian Ney]

you tried what I told you on msn yesterday night ?

[Eeky NoX]

You tried to hear me ? I'm not at home, must wait the week end to be back for buisness

[Christian Ney]

.... lol

 

true I forgot.

My bad

[leezaal]

lol i know my 2500k doesn't like the cold had 7 cold restarts this morning

[Vaykir]

hmm... seems to be very random when Sb is cooled by sub zero degrees.

 

i can only boot with 5200 mhz (1,55V) on air, but with 5700 MHz on single stage cooling (with 1,7V).

and its a lot more stable when the 2600k drops the 0°C.