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Gigabyte MA78GPM-DS2H Rev 1.1 Northbridge Temps

Texun

Texun

Platinum Member
I just got my first Gigabyte 780G board and I'm getting some crazy high chipset temps from Speedfan. It idled at 87C and hit 100C under a Prime95 test. :|

I bought this cooler for the NB and it only dropped the temps by about 6C overall. I know the 780G runs hot, but is it supposed to run THAT hot?

I gave the stock heatsink the feel test and it was only slightly warm, but it wobbled around on top of the chip so I figured the reason it was only warm was likely due to the loose fit. I thought I would see a nice drop in temps so I replaced the HS with the Tt above using a tiny dab of AS-5. The Tt installed fine and fit nice and snug and is only slightly warm to the touch. However, SpeedFan still shows it in the 80's at idle and mid 90's under load.

What is the normal temp for this chipset?

I haven't had any crashes, and I sure as hell don't want any, which is why I forked over another $20 for a better cooler. I was expecting much better cooling than this.

Thanks!


 
The question I would ask is:

Is Speedfan reading the correct sensor?

I know that with my Radeon HD4870 @ 70C, my heatsink is very hot to finger touch.
 
Originally posted by: Elcs
The question I would ask is:

Is Speedfan reading the correct sensor?

I know that with my Radeon HD4870 @ 70C, my heatsink is very hot to finger touch.
Click to expand...

I wonder the same thing. I grabbed a HS once at 70C and almost left an imprint in the copper.

The 780G is packed inside a very tiny package. The actual surface is about 1/3 the size of a dime and my guess is that it does not have enough area for a good heat transfer to the copper block on the Tt cooler. It's like cooling off the head of hot a pin by pressing it to a block of copper. At least that's how it appears from what I can tell.

I'm just curious to know if this is the norm. I know they get hot, but it seems that designing it to operate at this temp is like designing a plane for a kamikaze mission.
 
I would grab your Mobo Manufacturers own software temperture/fan/voltage/whatever monitor and compare them to what sensors you see on Speedfan.

Correlate then eliminate.

If when you remove your heatsink from your chip and you see a nice print of thermal paste, id say contact is good and you have no worries, you are attributing the sensor to the wrong component.... if it is a real sensor at all.
 
Just a follow up for anyone reading or doing a temp search on the 780G.... I emailed Gigabyte and they replied stating 85C is the normal operating temp for the North Bridge. Adding a Tt cooler and letting the AS-5 settle in the idle temp is now 81C. After seeing the size of the die I'm not all that surprised. It's just too small to dissipate heat to the larger copper HS effectively.
 
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