Gremlins in System. Need Expert advice.

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barton.young

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Dec 28, 2017
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I have a one year old out of warranty Origin Genesis with an MSI Z170A M9 ACK motherboard and Intel i7 6700k. All other components are top of the line. RAM is Corsair Dom. Platinum 16GB at 2800Mhz. Here is the mystery. About a month ago I notice a huge slowdown in the system. My games started running choppy and stuttering almost like my internet connection was slow but its not. Testing at 152 Mbs which is what I have always had. Even simple task like lunching Windows Explorer would take a considerable amount of time. Like my whole system was put into slow motion.So after a complete factory system restore which did not help, and at the advice of the service guys at Origin I ran the Passmark benchmark tests. I ran the test first thing in the morning when the system was cool from being off all night. My CPU came back with a score of 2482 which is only 19% of predicted. And my RAM score was 892 which was only 21% of predicted. So I went on vacation for a week and came back and ran the test again and my CPU scored 12,380 which was 88% of predicted! But only once! After that fisrt time is dropped back to 2400 every time. And the RAM score was still low at 890 even when I had that blip of the CPU finally where it should be. Any advice?
 
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barton.young

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Dec 28, 2017
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Liquid cooled. Temps were normal CPU temp never exceeded 78 degrees or 26 c
 
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jr9

jr9

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Dec 6, 2017
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- Consider booting into safe mode and running a malware scan using a program like Malwarebytes.

- Could you do a Usermark benchmark and post a link to the result? It will make it much easier to isolate the issue.
 
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barton.young

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Dec 28, 2017
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safe mode and malware scan done. nothing found. power cord removed from surge and plugged directly into wall..no change. CPU and RAM test result in 19% vs expected. SSD boot drive and GPU testing very well with 95% of expected. My last step is to replace RAM and see if any difference. If not that it must be the motherboard. At this point I know its not bios, not temp, not power, not malware. And the wierd thing is how when I returned from the system being off for 7 days and unplugged, the CPU score was 88% of predicted, then immediately fell back on subsequent tests.
 
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jr9

jr9

Estimable
Dec 6, 2017
2,212
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3,960
One thing you could try is making sure that your Windows power saving settings are set to high performance; I would also try doing the same in BIOS settings as well.

If the RAM passes 1-2 passes of Memtest I would try swapping the RAM out for another known working module and rerunning the benchmark.

If no luck there, as a last resort I would consider a Windows reinstall or an installation onto an external source to see if anything inside the OS like a bad update is causing the performance loss.

If no luck there, I would look into the motherboard as being the issue. I don't think the CPU is the issue personally it is very unlikely.
 
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barton.young

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Dec 28, 2017
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As it turns out it was the motherboard. I replaced with a new one and everything is running perfectly. Specifically it was somewhere in the CPU receptacle because cpu was registering running at 0.80 Mhz on the old board and is now at 4.00 on the new one. i7 6700 chip
 
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