why did old mobos never have VRM heat problems, but new ones seem to be plagued?

Dec 30, 2004
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I have an FX-8310 (32nm) clocked at 4.3ghz and 1.35v.

My old motherboard was a GA-MA790X-UD4P running a Phenom2 X4 965 clocked at 4ghz (45nm node) and 1.44v.

Exactly how much more power does the FX-8310 really use? Even with this 8+2 phase system I'm having no trouble bouncing off the VRM throttling code (good to know Gigabyte has it even if they don't advertise it!)

Frankly, I was expecting more out of the power supply on this board.

At this point the only discrepancy from the 790X days is that board at least had a heat pipe linking the VRMs (to...chipset?), and from the looks of photos, better heatsink to begin with (fins)--
chipchill.jpg



here's what my 970A-UD3P's VRMs have cooling them--
850072_d01_b.jpg


definitely less surface area.

these are things I never would have thought to check before purchasing! Gigabyte definitely cutting corners here from what they used to provide! the more you know...
 
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