[XFastest] Puts different boards through VRM heat test, which will burn first?

[sin0822]

switching frequency does almost nothing for pwm temperature. Only way to bring temperatures down significantly is to use more fets.

It does increase the temperature if raised and lower it is lowered. How can you increase the frequency at which the VRm operates at and have no repercussions, and expect the switching losses to what, disappear?

Why don't we quote Raja's R4E OC Guide?:

CPU Voltage Frequency: Sets the switching frequency of the power FETs supplying processor Vcore. Lower switching frequencies lead to a higher VRM efficiency (small power saving) and lower VRM operating temperatures. Setting a higher switching frequency aids transient response (the recovery of voltage to the applied level after a load condition) – at the expense of heat.

From what i saw for the IR meter when i googled retail is like 1000+ so second hand maybe $500? Still pretty expensive.

here is his comparision: http://www.xtremesystems.org/forums/...lutions-review

Um I think they measured MOSFET temperatures, Maybe they put a probe next to the FET or between the heatsink and one of the FETs. I don't really know what they did, but they said MOSFET temp.

What is that you linked?