AMD Athlon 64 X2 5600+ Brisbane 512 overheating
Discussion
As title, my AMD Athlon 64 X2 5600+ Brisbane 512 has suddenly started overheating. Everest reports the CPU as around 40%c and the cores at @ 20%c at idle. Used to show CPU as 21%c and cores at @12%c at idle. Putting CPU under 100% load has one cpu core up to 80%c and the other reached a dizzy 108%c before the PC shuts down on me. I've checked all the usual things, like dust, fanes spinning, changed the thermal paste for new stuff, etc. (I'm used to building PC's as a hobby)
This one has got me so flummoxed, I've ordered a new CPU. The present CPU runs great when underclocked to 2000 MHz from the original 2900MHz.
The fact that the cores show a huge leap of temperature when put to full throttle seems to me to mean that there is a fault in the CPU, I hope. The PC will work under normal conditions, but as soon as I play NFS HP2, it starts cooking and switches itself off. Running it underclocked, means it runs fine, but slower, but never switches off.
Any ideas chaps?
As a last thought, I did think I heard a bit of a whistle when starting it up from cold the last few days. That noise has now stopped. I put it down to the fans, but I now think they would not make a whistle as they are as clean as one. Does a dodgy capacitator whistle? Or can a dusty power supply whistle? The power supply was the only thing I didn't strip and clean manually. I just hoovered it.
This one has got me so flummoxed, I've ordered a new CPU. The present CPU runs great when underclocked to 2000 MHz from the original 2900MHz.
The fact that the cores show a huge leap of temperature when put to full throttle seems to me to mean that there is a fault in the CPU, I hope. The PC will work under normal conditions, but as soon as I play NFS HP2, it starts cooking and switches itself off. Running it underclocked, means it runs fine, but slower, but never switches off.
Any ideas chaps?
As a last thought, I did think I heard a bit of a whistle when starting it up from cold the last few days. That noise has now stopped. I put it down to the fans, but I now think they would not make a whistle as they are as clean as one. Does a dodgy capacitator whistle? Or can a dusty power supply whistle? The power supply was the only thing I didn't strip and clean manually. I just hoovered it.
Have you checked your voltage to the CPU try http://www.cpuid.com/cpuz.php because if your mainboard as started to overvolt your CPU on its own(faulty board)then that would explain the high temps.
I've checked the voltages, all look good. PSU has now been dismantled and cleaned as well. As soon as load is put on the Cpu, the thing steadily heats up and powers off. If I underclock it from 2900 Mhz to 2000 Mhz, it stabilises. This has only started recently, no hardware changes have been made.
Zad said:
You say your temperatures were 21C and 12C. Do you have a refrigerating cooler? Because surely these are both below ambient room temperature.
Standard cooling. At the moment it's showing core #1 14c, core #2 17c, cpu 37c. If I load it up it shows core #1 98c, core #2 84c, cpu 48c and shortly after shuts down. Room temp is 21c. Temp sensor at fault?
I'd have thought an AMD cpu would have caught fire at 108 deg C, and the 'usual' idle readings well below ambient sound awfully odd unless you have peltiers or a refrigerating system.
Obviously if the temp sensors are faulty and non-linear then the system will shut down when it considers the temp too high. Are the CPU temp sensors in line with the northbridge temp sensor (i.e. move in the same direction under load)? Can you get an independent temp reading of the CPU when running (infra red reader maybe?)
Most likely duff CPUs but those below-ambient temps don't sound right to me.
I'd have thought an AMD cpu would have caught fire at 108 deg C, and the 'usual' idle readings well below ambient sound awfully odd unless you have peltiers or a refrigerating system.
Obviously if the temp sensors are faulty and non-linear then the system will shut down when it considers the temp too high. Are the CPU temp sensors in line with the northbridge temp sensor (i.e. move in the same direction under load)? Can you get an independent temp reading of the CPU when running (infra red reader maybe?)
Most likely duff CPUs but those below-ambient temps don't sound right to me.
Tunku said:
Zad said:
You say your temperatures were 21C and 12C. Do you have a refrigerating cooler? Because surely these are both below ambient room temperature.
Standard cooling. At the moment it's showing core #1 14c, core #2 17c, cpu 37c. If I load it up it shows core #1 98c, core #2 84c, cpu 48c and shortly after shuts down. Room temp is 21c. jimmyjimjim said:
Tunku said:
Zad said:
You say your temperatures were 21C and 12C. Do you have a refrigerating cooler? Because surely these are both below ambient room temperature.
Standard cooling. At the moment it's showing core #1 14c, core #2 17c, cpu 37c. If I load it up it shows core #1 98c, core #2 84c, cpu 48c and shortly after shuts down. Room temp is 21c. Temperatures:
Motherboard 41 °C (106 °F)
CPU 37 °C (99 °F)
CPU #1 / Core #1 20 °C (68 °F)
CPU #1 / Core #2 16 °C (61 °F)
Aux 32 °C (90 °F)
GPU1: GPU 41 °C (106 °F)
GPU2: GPU 44 °C (111 °F)
SAMSUNG HD321KJ 28 °C (82 °F)
SAMSUNG HD321KJ 27 °C (81 °F)
Voltage Values:
CPU Core 1.37 V
+3.3 V 3.36 V
+5 V 5.22 V
+12 V 11.98 V
+5 V Standby 5.07 V
VBAT Battery 3.02 V
It's got me puzzled. If you ignore the spurious temps for the cores, and look at the CPU temp,it seems to be fairly accurate. I have turned the speed down to 2800 Mhz from 2900 Mhz, and I've changed the voltage from auto to 1.325 V. This seems to have stabilized things a bit, enogh to make me think of a better cpu fan.I'm running the stock one at the moment.
Get one of these http://www.novatech.co.uk/novatech/specpage.html?a... highly recommended i have used 2 of these and the 2nd PC i am typing on now AMD64 runs 24/7 and as been on for the last 2 years(cameras)the fan is hardly audible and very cool 
dont be fooled by the cheap price they come recommended.
dont be fooled by the cheap price they come recommended.That Daddy said:
Get one of these http://www.novatech.co.uk/novatech/specpage.html?a... highly recommended i have used 2 of these and the 2nd PC i am typing on now AMD64 runs 24/7 and as been on for the last 2 years(cameras)the fan is hardly audible and very cool dont be fooled by the cheap price they come recommended.
That looks rather good actually. dont be fooled by the cheap price they come recommended.Tunku said:
That Daddy said:
Get one of these http://www.novatech.co.uk/novatech/specpage.html?a... highly recommended i have used 2 of these and the 2nd PC i am typing on now AMD64 runs 24/7 and as been on for the last 2 years(cameras)the fan is hardly audible and very cool dont be fooled by the cheap price they come recommended.
That looks rather good actually. dont be fooled by the cheap price they come recommended.Any other recommendations. I have a spare fridge in this caravan I bought on impulse...
Gas cooled PC anyone?
http://www.ebuyer.com/product/142954http://www.scan.co.uk/Product.aspx?WebProductId=88... or http://www.scan.co.uk/Product.aspx?WebProductId=40... all good uns 
check they fit your mainboard though they are large.
check they fit your mainboard though they are large.Edited by That Daddy on Wednesday 1st October 22:20
That Daddy said:
http://www.ebuyer.com/product/142954http://www.scan.co.uk/Product.aspx?WebProductId=88... or http://www.scan.co.uk/Product.aspx?WebProductId=40... all good uns check they fit your mainboard though they are large.
As is traditional on PH, I have ignored all advice and gone for one of these check they fit your mainboard though they are large.Edited by That Daddy on Wednesday 1st October 22:20
http://www.dabs.com/productview.aspx?Quicklinx=554...
I have a window in the side of the case so I get even more pretty lights.
<oooh look at all the pretty lights>
Anyway, thanks for all the help. No doubt I will come back and say it was the motherboard/cpu/psu/etc. all along.
Tunku said:
That Daddy said:
http://www.ebuyer.com/product/142954http://www.scan.co.uk/Product.aspx?WebProductId=88... or http://www.scan.co.uk/Product.aspx?WebProductId=40... all good uns check they fit your mainboard though they are large.
As is traditional on PH, I have ignored all advice and gone for one of these check they fit your mainboard though they are large.Edited by That Daddy on Wednesday 1st October 22:20
http://www.dabs.com/productview.aspx?Quicklinx=554...
I have a window in the side of the case so I get even more pretty lights.
<oooh look at all the pretty lights>
Anyway, thanks for all the help. No doubt I will come back and say it was the motherboard/cpu/psu/etc. all along.
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