Stevo_ wrote:quest_for_silence wrote:Stevo_ wrote:Power matters as that is the gist of the problem that you don't seem to understand, some older Enermax (not limited to them) PSUs suffered instability at no/low load startup.
That is not into question, and it does not seem related to the OP issue. :
Its very related as he has a 2009 or prior model. When he ups core voltage (which affects leakage power linearly but more exponentially with temperature and as an OV condition is reached and dynamic power exponentially at all times VDD^2*freq) the system becomes stable. The problem only manifested when he upgraded to a Haswell based system.
No, you're totally incorrect.
Startup conditions do not apply, moreover BSODs happened with the system running (so when there was a load).
Besides you are completely forgetting that the PSU does not feed the CPU directly: any mobo+CPU combo has its own VRMs (voltage regulation modules), so that what happens before those VRMs, if it's in specs (and it is), should not matter.
Eventually the OP issue came out with an heavily overclocked rig with a cheap mobo, not with just the Haswell (even better it happened after two days of regular use): as a matter of fact the Seasonic Platinum didn't solve the issue, that rig doesn't seem stable under 1.229V (just a side note: since 2008 I never saw any Intel CPU running stable at over 4GHz with less than 1.2V)!
Please, for the sake of this thread signal/noise ratio, give a rest to this sort of FUD: if you really want to try to be right, come hell or high waters, please join jonnyguru.com forum, where we can also talk along with some PSU experts, and maybe carry out some more educated guesses...
Stevo_ wrote:Is your Enermax series II or the original, the original never was on the Haswell compatibily list and likely had no/low load issues as did many PSUs at the time.
That's incorrect: first of all, both the series actually are on the
official Enermax compatibility list.
Then, even the official Intel Haswell certification means about nothing with reference to the idle low load offered by Haswell rigs you're trying to bring into question: C6 and C7 deep sleep power states applies (i.e. might be of some importance) to battery savings in portable system (and could be outright disabled on desktop mobos, as many vendors did), and the Enermax IS NOT group regulated (group regulation is very often an impedimental feature to the Intel certification process) but take the VRM approach (and as quoted above, Enermax declared both the series as compatible).
At any rate, I own a late (october probably) 2009 one, and it's a first series (side note: the difference between the two series should be mostly limited to the ErP Lot 6 2010 certification for standby power).
Cistron wrote:Stevo_ wrote:Is your Enermax series II or the original, the original never was on the Haswell compatibily list and likely had no/low load issues as did many PSUs at the time.
I can't find any good resource that non-support of the Haswell deeeep sleep states is actually a real issue. Do you have any links? Deactivate them in BIOS/EFI?
Some mobos vendors actually disabled them by default; anyway, it should be disabled for desktop (you don't run on batteries, right?), and it is not a real issue: forget it.
