HSF seated correctly? FX 8350, 50 deg idle, max fan

[jotto]

Been a while but finally built a new system for my daughter. Used the FX 8350 chip and whilst happy with the performance so far ( only built yesterday ) noticed from the get go that the chip gets hot very quickly and fan ramps up to 100% and is very noisy.

When funds allow will buy an after market cooler but for now, need to get this one running cooler.

No OC'ing, all stock out of the box.
On first boot in to the bios, CPU temp started at about 32 degrees then raised by 1 degree every second or 2 till it reached about 50 where is levelled out. Fan was relatively quiet to start with but soon ramped up to 100% and is very noisy. Wouldnt be so bad if if it was under load but it wasnt.

When in windows, surfing net/installing updates, CPUID etc show CPU to be around 46 degrees and fan at 100%.

Will try reseating the stock HSF but if that doesnt work, where should I look next?

AMD FX 8350
MSI 970A-G46 Mobo
HD 7870 Graphics
8 GB Crucial Ballistix ram
128GB + 256GB SSD drives
Blu Ray DVD.

TIA.

 

[Hagar]

if you are happy with the airflow un the case, the first place I would go is CPU voltage. At stock it should be 1.35 to 1.38 under load and enabling cool and quiet should be about 0.9 to 1.1 volts at idle.

andy.

 

[jotto]

Ok, this is very weird.
Went to reseat the HSF and decided to check temps so I could get a before and after comparison.
PC has been on all day but doing nothing for the last hour or so. Temps were 13 degrees but fan was still running at full rpm.

Was going to check if there was a fan setting in the BIOS but decided to first see if installing any of the MSI Utilities would work. Installed MSI control centre and on one page found the fan settings page. Smart CPU fan was not checked so I clicked the box and the fan immediately slowed right down to 20%. CPU temps are now stable at 19 degrees with fan at this setting.

SO

2 questions.
Any ideas why the temps were so high to start with and why would they have dropped?
And
Is there a setting in the BIOS I can enable to do the same as the control center software?
OK, thats 3 questions I guess! lol.

Im not a fan of having software installed when its not really needed so if I can get the same fan control in the BIOS that would be ideal. If not, at least I can set the fan speeds for different CPU temps.

One final thing, what is a safe max temp for this CPU? Ive seen figures as low as 60 degrees mentioned which seems very low but what do I know! lol.

 

[Hagar]

Any temps below ambient are wrong, these will be core temps which AMD do not record well unless under load, CPU temp will be in the range 30 to 40C at this time of year typically. Use HWmonitor for temperature readings.

Max CPU temp is 62C from AMD but I have had temps of 67 to 68C before thermal throttling kicks in.

I use Asus windows utility to control fan speeds, there is a bios control for ASUS, not sure about MSI

You may have had a burn in period with the thermal paste under the heatsink, or it was not seating initially.

 

[jotto]

Thanks for the reponse Andy.
Must have a bit of a sensor glitch which is worrying.

At Idle, the CPU temp as reported by HWMonitor and Coretemp, both read the same at around 20ish but fluctuate quickly to 30 or so and back down again as various things cause CPU to speed up/slow down.

Had a go at running Prime just to see what temps would be like. I set the fan to ramp up to 100% at 65 degrees.

Core temp and HWMonitor showed CPU as reaching 67 degrees but fan was only running at 84%?????? Also, prime only got cores to 4ghz instead of the 4.2 I was expecting. Perhaps a BIOS reset is in order or perhaps this is due to the CPU throttling?

Something isnt quite right but at the moment, its running quietly and temps are reportedly OK. Will have to sort out a cooler soon though.

 

[X3T]

Thanks for the reponse Andy.
Must have a bit of a sensor glitch which is worrying.

At Idle, the CPU temp as reported by HWMonitor and Coretemp, both read the same at around 20ish but fluctuate quickly to 30 or so and back down again as various things cause CPU to speed up/slow down.

Had a go at running Prime just to see what temps would be like. I set the fan to ramp up to 100% at 65 degrees.

Core temp and HWMonitor showed CPU as reaching 67 degrees but fan was only running at 84%?????? Also, prime only got cores to 4ghz instead of the 4.2 I was expecting. Perhaps a BIOS reset is in order or perhaps this is due to the CPU throttling?

Something isnt quite right but at the moment, its running quietly and temps are reportedly OK. Will have to sort out a cooler soon though.

The 4.2GHz is max turbo only. This only kicks in under lightly threaded workloads (up to 4 cores), otherwise it will run the cores at the all-core turbo which is 4.1GHz. Under heavy loads (such as Prime) turbo will not work at all, and the speed will default to 4GHz.

I have a Corsair H80i, and I highly recommend it. Got my 8350 running at 4.6GHz and the highest temps I have seen during gaming were 40-45 degrees C on a very hot day.