P55 - Issues around safe VTT?

bfar · 20 Nov 2009 at 20:41

Take a look at this thread on the EVGA forums...

Seems that Intel's specification states an absolute max VTT of 1.21v on lynnfield cpus than they do on bloomfields (1.35v). Some mobo manufacturers are apparently going way over spec when implementing overclocking (MSI Genie = 1.4v) or XMP profiles (EVGA = 1.35v) :eek:

These guys are trying to get clarification from EVGA.... interesting thread.

Seems to me that lynnfiled overclockers haven't been frying cpus left right and centre so far, and most users are pushing way beyond that spec. Any thoughts?

ETNiES · 21 Nov 2009 at 01:58

You'll always get an extra bit to play with over the recommended settings anyway so not that big of a deal but it is a little odd to have it set over as the default specs.

Hotwired · 21 Nov 2009 at 02:07

Indeedydo: Clicky

Mine is 1.20575V using a slightly modified XMP, can't remember if I set that bit manually or not... but it runs stable and that's the important bit.

WJA96 · 21 Nov 2009 at 08:34

bfar said:
Seems to me that lynnfiled overclockers haven't been frying cpus left right and centre so far, and most users are pushing way beyond that spec. Any thoughts?

It's very early days yet. P55 hasn't been out 3 months.

The bottom line with overclocking is still the same though - there is no such thing as a safe overclock. You always overclock at your own risk. If you can't afford to replace the whole shebang, don't overclock it.

Legion · 21 Nov 2009 at 08:55

Seems to me that lynnfiled overclockers haven't been frying cpus left right and centre so far, and most users are pushing way beyond that spec. Any thoughts?

I've suspected this since I bought my i5 750 rig in October,I've suggested quite a few times here that people dont run mad voltages through their IMC.
Personally I wont go over 1.225v on the IMC,even if it was proven safe I dont need more to run at 4.2ghz anyway.

Hotwired · 21 Nov 2009 at 09:52

There's a safety margin too.

It's not a question of run at X to 5 decimal places and a bit over = toast otherwise that would mean intels numbers themselves were risky.

Still, if you don't need to push it..