Northbridge chipset & vregs on 1155 socket.

[BTRY B 529th FA BN]

I'm curious how warm the Z77 chip-sets get under gaming load, as-well as the vregs? Anyone occasionally check their temps?

I'm more curious on overclocked systems e.g. 4.4Ghz and up.

Thanks peeps

 

[BTRY B 529th FA BN]

Anyone else? lol

 

[Zap]

I don't think they get hot enough for most of us to bother checking.

 

[SPBHM]

I don't see why z77 would get hot,
it stays at the stock clocks when you overclock the CPU, and it's pretty basic, it's more like an old southbridge used to be, unlike the x58.

 

[ShintaiDK]

Its not a northbridge, its a PCH. And if you used the multiplier to overclock with. Then the PCH got the same temperature and use the same power as it would on stock. The max allowed temperature for the PCH is 102C.

 

[2is]

Well on my system. (4.2GHZ OC) 99.3F was the highest I saw on my VRM sinks and chipset heatsink got to 93.2F I took the measurements during the 10th pass of IBT

 

[coffeejunkee]

Well on my system. (4.2GHZ OC) 99.3F was the highest I saw on my VRM sinks and chipset heatsink got to 93.2F I took the measurements during the 10th pass of IBT

What program did you use to measure vrm temps? I'm using a P8Z77M-Pro and according to HWInfo the southbridge is at 50 degrees celsius, quite a bit more than your 34 degrees. I thought it was a bit high at first so I googled, but most people reported the same temps.

 

[2is]

What program did you use to measure vrm temps? I'm using a P8Z77M-Pro and according to HWInfo the southbridge is at 50 degrees celsius, quite a bit more than your 34 degrees. I thought it was a bit high at first so I googled, but most people reported the same temps.

I aimed a heat gun to sinks

 

[Zap]

Well on my system. (4.2GHZ OC) 99.3F was the highest I saw on my VRM sinks and chipset heatsink got to 93.2F I took the measurements during the 10th pass of IBT

If your body core temperature was that low, you would be advised to seek medical care. :\

 

[ShintaiDK]

Hehe.

 

[2is]

Ill check again with HWInfo

 

[Cookie Monster]

Shouldn't worry about it. Most mosfets used in the power converter side of the motherboard (they are normally bare or been heatsinked on motherboards) are rated to handle fairly large power and the packages themselves are rated 100C+ most of the time. 50~60C is normal for a good design with good components when its loading. 70~80C may or may not be as it could mean the fets are being stressed hard or the converter itself hasn't been optimized very well. 90C+ would mean really poor design/poor component selection.

I can also tell you that most mosfets are actually heatsinking onto the motherboard as there should be lots of copper planes around that part of the motherboard.

These days the heatsinks are pretty much all for show. You could potentially save a few Ws at best if the mosfets are cooled as they will have a lower resistance when turning on i.e. less heat dissipated.

With other circuitry like the controller ICs and stuff, no need to be heatsinked. And Im sure the chipset also doesn't actually require those heatsinks (I could be wrong!) which from what I can tell look horribly ineffective e.g. the Asus one.