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Overheating
Word of wisdom regarding the Kevari chip. The stock heat sink apparently is not sufficient if you overclock the chip. Big surprise right?
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Nope, Llano, Trinity and Richland had the same. Those standard coolers ought to be replaced with those they send the 125 Watt tdp FX series away with.
AMD stock 65Watt tdp cooler
The more capable FX cooler
My A8-3870 sits under a Thermaltake Big Typhoon, my A8-3820 under a Cooler Master Hyper412S,
my A10-5700 under a -much bigger than the 65Watt tdp standard issue- former Athlon X2 5000 cooler, and is running stock speed.
The A6-3500 has been laid off, but has the cooler that came with the 100Watt tdp 3870K.
I had plans to give my son the A6-3500, but as I have to replace one of my present systems when I buy a Kaveri I think I give him the 3870K instead.
The Kaveri will either go under BIG Air or be water-cooled
A BIG Air I had in mind: a triple 140mm fan Phantek
Last edited by Dirk Broer; 02-11-2014 at 08:47 PM.
Reason: Kevari->Kaveri
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I'm finding the Kaveri uses far less power tha the old AMD 64 I replaced. I'll use the guestimated minutes of reserve power displayed by my battery backup for reference.
The battery backup powering the old system with one of the original AMD 64 chips always displayed 23 minutes as it's reserve. Sitting idle or fully loaded, 23 minutes.
The same battery backup now displays 84 or 85 minutes of reserve power running the kaveri at idle. 35 minutes with all 4 cores running at 4.3 ghz at 100% The Kaveri runs cooler than the old AMD64 but has less tolerance for heat.
I installed a coolermaster hyper T4 last night. At idle the reported CPU temp is around 34 to 38C depending on room temp, at idle. Full bore, 53 to 54c. With the stock cooler, it was never below 50C even at idle.
The system is generally running 24X7. Amongst other things, it's reporting weather data to weather underground and NOA.
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Problem solved. Installed a larger heatsink and a second case exhaust fan and the system is stable at 4.3 ghz. This is what the motherboard automagically overclocked to.
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screen shot
Capture.jpg
Not sure if this is going to work or not.
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Nice screen shot! Kaveri@4.3GHz must be quite something performance wise
(500MHz overclock as compared to the stock Turbo speed, 900MHz higher than stock Standard)
Does the internal R7 hit the 1 TeraFlop in the Boinc Manager?
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Well, I'm not sure what the R7 is to be able to answer that.
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Capture.JPG
I'm hoping this is what your referring to.
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No, I was referring to the top lines of the event log of the Boinc Manager:
boinc-manager_event-log.jpg
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