Haswell undervolting Software for Windows/Linux?

Page 2 - Seeking answers? Join the AnandTech community: where nearly half-a-million members share solutions and discuss the latest tech.

Soulkeeper

Diamond Member
Nov 23, 2001
6,732
155
106
I think the problem is there just aren't enough people requesting full control in their bios from the board makers. Atleast with these server oriented boards.
Perhaps you should email them with a friendly feature request.
Also it might be worth looking into a desktop/enthusiast board that can support the xeon cpu. If i'm not mistaken some support ecc+xeons and also have the plethora of bios features ? this would be a win win.
 

zir_blazer

Golden Member
Jun 6, 2013
1,236
534
136
Supermicro always said a bold NO to tweaking on their Server Motherboards, I did make them a request for a custom BIOS before purchasing, but they said that the product wasn't mean for that.
I knew that I was going to be screwed from the beginning in that regard because I wanted to have a Q87/C226 Chipset for full VT-d support, and neither Chipset is enthusiast oriented, so full featured enthusiats Motherboards with these Chipsets are highly unlikely. However, on other Motherboards with the same BIOS limitations, you could usually resort to Software (Anyone remembers overclocking via ClockGen on mid range Motheboards a decade ago or so before overclocking came down to mainstream?), but with Haswell that is impossible.


What kind of case does this build sit in?
A generic, dull case with no case Fans, but I have the case sides opened and currently with a real Fan blowing.
 
Last edited:

Sequences

Member
Nov 27, 2012
124
0
76
A generic, dull case with no case Fans, but I have the case sides opened and currently with a real Fan blowing.

Having good airflow inside the case is pretty important. I would suggest giving the inside of your case proper air flow first.
 

zir_blazer

Golden Member
Jun 6, 2013
1,236
534
136
With the case open and an electric fan blowing air to it, it should be around open testbed levels of airflow, if not a bit better, so the case is not the issue there. Legit Reviews's Core i7 4770 was at 86°C full load on an open testbed, though no data on ambient temperature, but inside a case it should pretty much always be worse. Actually, with this same case, in this same room with poor ventilation, but with an electric fan 1.5m away from it (Pretty much, same conditions that right now) had my AIIX4 plus two undervolted Radeons 5770 mining 24/7 at quite low temps halfway during spring two years ago.
The only thing that could be wrong is that I didn't installed the heatsink correctly due to the fact that this is my first LGA build, but doubt so as instructions to install it were simple, and temperatures are realistic. Airflow is bad, but if temperatures were acceptable with two Video Cards occupying space and generating heat, the Processor alone by itself has no excuse.