Please don't edit your question to include the answer, answer your own
question. Please read Can I answer my own question? – DavidPostill
Conclusion:
I accepted the answer of Jonas, because most probably high CPU load triggered the warning. I did not find any process which could cause this, but when I move the mouse I have about 10-30% CPU load on the process I have focus on. This does not depend on the mouse, on the operation system (at least I checked with Win7 and Linux Mint) and on the USB port I plug the mouse in. I checked the CPU with different tools, checked the idle process, but as far as I can tell, there is no problem with that except the temperature is somewhat higher than I had by the previous one. No problem with the memory and the hard drives as well, and most probably no problem with the video card. So the only options left: a.) this is normal by this computer, b.) my motherboard will die due to hardware failure, c.) this is some kind of BIOS issue.
Update:
I discussed the topic in some forums. We recognized that the BIOS update changed the CPU multiplier to 6x instead of 8x. That's why I had 25% performance drop. According to them the higher CPU usage by mouse movement is normal in some systems, so I don't have to buy a new motherboard. With 8x multiplier I have about 22% instead of 30% by mouse movement, so it is linear, which means that the mouse movement requires always the same amount of counts. This appears to be normal to me.
I discovered when I use keyboard only to start the test and wait 1-2 mins before the test, then I don't have the ambient CPU warning. So I think this problem is solved. Here is my new test without the warning: http://www.userbenchmark.com/UserRun/358532
Seems like a rather silly error. 'Ambient CPU Load' - what a ridiculous term to create. Are they talking about Ambient temperature? I mean the word ambient in itself means 'relating to the immediate surroundings of something'. In the case of load are they comparing it to other people's PC of the same spec? Seems like a silly thing to write. I don't blame you for being confused about this. – Jay – 2015-08-27T13:25:19.993
but you did not tell him, it means that (as far as the software knows) your CPU was very busy doing other things. There is no way to tell if your adaption, or modification is the problem just yet. Assuming windows 7 like it said, you would use task manager and resource monitor to attempt to discover what is using the cpu. Because the thing could also throttle (775s could) it also wouldnt hurt to be checking your temperatures (or cooling) and doing a quick check with CPU-z might show some stuff. and also using more different benchmark items. – Psycogeek – 2015-08-27T13:28:45.157
3"Ambient" in this context just refers to tasks that are not initiated by the benchmarking utility. when you run a benchmarker, you want to close all running applications and shut down any services that are performing heavy work, so that the load on your CPU is as close to 0% as possible before starting the benchmark. That way the benchmarker can introduce and reduce load as needed to do its tests. if you were trying to measure how much a bucket can hold, but you started with an approx. half full bucket, you could not measure the volume of the bucket by the amount you add to it. Empty it first. – Frank Thomas – 2015-08-27T14:01:15.430
@FrankThomas I closed everything I could except smart security, skype and f.lux. Hmm I try again without them. – inf3rno – 2015-08-27T14:02:38.213
@Psycogeek The cpu temperature is high compared to the 8400, but I read that it is common by e5430. It's around 54°C by browsing according to speccy. The 8400 was much lower, but I don't remember. Maybe 43°C or so. It has a 12cm diameter zalman cpu fan. – inf3rno – 2015-08-27T14:06:15.113
I recommend you run Process Explorer (from Technet/Sysinternals) as Admin, and look at the CPU usage before benchmarking. First, if the heavy processing is from Interrupts or Defered Procedure Calls (DPC), then there likely is a hardware problem, and secondly it will help you ID the process creating the ambient load. – Frank Thomas – 2015-08-27T14:09:59.573
I turned off skype, flux and the antivirus, now it was 25%. Still high compared to my other device with antivirus turned on. It had 1%. http://www.userbenchmark.com/UserRun/357206
– inf3rno – 2015-08-27T14:12:36.833@FrankThomas According to it system idle process has 97% cpu load. wtf? :D no wonder it causes high cpu temperatures even with a good cooler. – inf3rno – 2015-08-27T14:17:38.387
well, System Idle is not actually a process, but is there to display the absence of one, so that means that your other processes are using a total of 3%. It doesn't explain the ambient issue though. I'd run the benchmarker and continue to examine Process explorer. Perhaps some software (like an AV system) is responding to the actions the benchmarker it taking, and introduces additional load that way. – Frank Thomas – 2015-08-27T14:24:11.410
Let us continue this discussion in chat.
– inf3rno – 2015-08-27T14:28:13.3571Maybe @Jay is right and they mean CPU temperature. Is your computer properly vuild together with all neccessary cooler running? Maybe dust got collected inside your PC and heats ut up. My PC always makes weird noises on hot summer days and reminds me to clean it – BlueWizard – 2015-08-27T14:46:06.750
@JonasDralle I heats compared to the previous CPU, but I read that this is normal by this model. It's about 54°C by browsing, and 61°C by CPU intensive tasks. It's limit is 67°C. I don't think that temperature is measured by %, at least it would be very strange. – inf3rno – 2015-08-27T15:22:07.533
Please don't [edit] your question to include the answer, answer your own question. Please read Can I answer my own question?
– DavidPostill – 2015-08-29T16:30:23.610