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ASRock Z77 VRM/phase cooling badly needed - Page 4

post #31 of 34
in my case with a Extreme 4-M, anything above 4,2 was stretching it cooling wise with the VRMs. I checked everything, the CPU was throttled because of VRMs that went to 75°C within seconds in prime. Heatpads and cooling was all correct. I got rid of that board..... hard.
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CPUMotherboardGraphicsRAM
2600k@4,5ghz@~1,28v ASUS P8Z77-M Pro HD7950@1200/1800 1,22v @ AC Extreme 7970 ADATA DDR3 1866 4x4GB 
Hard DriveCoolingOSMonitor
Crucial M4 128GB, WD Blue 1tb, WD Green 4x 2Tb Alpenphön Brocken@2x GT 1350rpm Win8x64, Archlinux 3x Dell U2311H 
KeyboardPowerCaseMouse
Corsair K70 Blue Corsair HX650 Fractal Design Arc Mini Roccat Kone XTD 
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Razer Goliathus Asus Xonar Phoebus@Alesis RA300@KEFQ300 
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No turn unstoned
(15 items)
 
  
CPUMotherboardGraphicsRAM
2600k@4,5ghz@~1,28v ASUS P8Z77-M Pro HD7950@1200/1800 1,22v @ AC Extreme 7970 ADATA DDR3 1866 4x4GB 
Hard DriveCoolingOSMonitor
Crucial M4 128GB, WD Blue 1tb, WD Green 4x 2Tb Alpenphön Brocken@2x GT 1350rpm Win8x64, Archlinux 3x Dell U2311H 
KeyboardPowerCaseMouse
Corsair K70 Blue Corsair HX650 Fractal Design Arc Mini Roccat Kone XTD 
Mouse PadAudio
Razer Goliathus Asus Xonar Phoebus@Alesis RA300@KEFQ300 
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Reply
post #32 of 34
I have used many Extreme 4Ms, but most of them with Xeons. Never had one issue concerning power delivery/stablity. My gaming rig has one with a 3770k @ 4.5ghz and has never had issues (in over a year at that speed). I agree though, the VRMs are not high enough quality if you are into big clocks 24/7, but who buys a board this cheap for that anyway (besides me, lol). A big rad with dual fans hanging over them is a no-no as no air flows over it at all (but that is exactly how I have run mine).
post #33 of 34
If you want top notch power delivery(or any hardware components period) with ASROCK you need to look at the Formula and the high # Extreme line(like 9,11)and a couple of the Fatal!ty boards. The lower level Extreme boards etc are a mixed bagged it seems.
post #34 of 34
So apparently this thread is the top result on google for this issue in 2016 and sorry to revive this thread but I think someone needs to show a working cooling fix.
I just finished a cheap I7 build with an i7 3770k and have upgraded from a mini itx build as some poorly optimized games were struggling on my old 2500k@4.2ghz and the board didnt have vcore adjustment. I got the i7 3770k at a bargain price and the performance is close to the current i7 6700k when overclocked so went about getting a micro atx board.
There really werent many z77 boards available(had to be z77 for >2133mhz ddr3) in the micro atx size so I wound up with this Z77 Pro4-M board intending to overclock to the 4.6ghz range.

The board seemed ok on paper but to overclock to that speed my 3770k needs 1.44v to get to 4.6ghz which doesnt seem to far off but is quite high but the cpu keeps throttling down to 3.5ghz(then raising and throttling dwn again) when stressed for a couple of minutes which points to a heat issue. When I felt the vrm heatsinks they were both very hot and hwmonitor didnt show any high motherboard temps.

My only option to fix this is to add better cooling with a couple of cheap fans and 2.5mm cable ties shown below which brought consistent performance with my 3770k staying at 4.6ghz and cool heatsinks to touch. The random fans are from a hard drive cooler I got free with a case years ago work off a molex connector but are crucially silent.
I'm trying to find a decent replacement cooler for the stock black ones and havent replaced the stock thermal pads yet which may make cooling a little better.
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