safe blk max for z77 board ?

[mp260767]

hi,

i'm working on clocking a 3770k on a gigabyte z77-d3h (running bios 22), running on air cooling.

hit a limit of 4.6 at 1.35v, 4.7 needed 1.42 and temps were the wrong side of 80

after reading here i decided to try the blk setting, currently managed to get it to 104.5 * 46 for 4.8 at 1.38.

now 4.9 would need 106.5, just wondering if that would be safe to try ?, and how far can i safely push it, as 5ghz would need 108.7 ish.


cheers.

 

[wazza300]

you might get instability after 105-106bclk

using a fixed cpu voltage ?

 

[mp260767]

currently fixed, as i'm new to this bclk usage so wanted the stability of a static voltage, rather the dvid i'm using on my normal 4.6 o/c.

monitoring via hwmonitor for temps/voltages.

aside from instabilities there likely to be any other issues ?, as i know the bclk adjusts memory speed, and affects the likes pci-e if i've read things correctly so far.

 

[mp260767]

never mind it wants to many volts to get above 4.8

4.9 knocked 12 seconds off my best super pi 32m time, but wasn't game stable

 

[wazza300]

stick with whats the safest oc,you can always up it just for benchmarking

 

[mp260767]

yeah, was hopeful of the 4.9 but don't want to run the volts it looked to need to get game stable .

 

[8 Pack]

What GPU you using?? Most Nvidia dont mind high BCLK AMD is a different story though.

Like Wazza says up for benching 4.8 is easy enough for games.

 

[mp260767]

running a 780 gtx, so got something right for a change lol.

yeah i'm staying with the "safer" o/c, just gutted with the 4.9, i know super pi isn't the be all of benchmarking but to knock 12 seconds off, and my first sub 7 mins time, just surprised me, shame it couldn't hang on for day to day stuff .