i7 4790k Crashes with turbo boost at default settings
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- Intel i7
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CPUs
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Motherboards
Last response: in CPUs
Steve Fallon
July 5, 2014 6:22:20 PM
Hello all. I recently replaced my old Sandy Bridge motherboard/CPU combo to fix some issues I'd been having. I'm now running an Intel Core i7 4790K with a Gigabyte GA-Z97X-UD5H mobo. I've been running into issues with CPU intensive tasks, such as encoding video in Adobe Media Encoder or running Prime95 stress tests. In either case, my computer only lasts between 1 and 5 seconds running either application before instantly shutting down, as if someone pulled the power.
I can confirm that the issue is not Windows related, as I've run Prime95 on my Ubuntu install and gotten the same results. One interesting note is that this issue goes away when I set the turbo ratio in the bios to disable, disabling turbo boost entirely. When I do this, Prime95 and Media Encoder run fine, and my temperatures don't go above 60 or so. I'm using a Hyper 212 Plus, by the way.
I'm leaning towards a defective chip, but can anyone else provide some recommendations? Bios settings to alter?
I can confirm that the issue is not Windows related, as I've run Prime95 on my Ubuntu install and gotten the same results. One interesting note is that this issue goes away when I set the turbo ratio in the bios to disable, disabling turbo boost entirely. When I do this, Prime95 and Media Encoder run fine, and my temperatures don't go above 60 or so. I'm using a Hyper 212 Plus, by the way.
I'm leaning towards a defective chip, but can anyone else provide some recommendations? Bios settings to alter?
More about : 4790k crashes turbo boost default settings
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Reply to Steve Fallon
JuniorPCBuilder
July 5, 2014 6:30:23 PM
Steve Fallon
July 5, 2014 6:36:44 PM
I was running a CORSAIR TX Series CMPSU-750TX 750W. When this issue came up, I thought the PSU was faulty and I replaced it with a Seasonic M12II 620 BRONZE, and nothing changed.
So I went from 750W to 630W, because people told me that was more than sufficient for my needs, which are one GTX 570, the i7, 3 fans, and 3 hard drives. Is it possible that the old one was faulty and the new one doesn't provide enough power? I suppose so, but the fact that the issue presents itself in the exact same manner leads me to believe that the PSU isn't the issue here.
So I went from 750W to 630W, because people told me that was more than sufficient for my needs, which are one GTX 570, the i7, 3 fans, and 3 hard drives. Is it possible that the old one was faulty and the new one doesn't provide enough power? I suppose so, but the fact that the issue presents itself in the exact same manner leads me to believe that the PSU isn't the issue here.
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Related resources
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Steve Fallon
July 6, 2014 1:54:22 PM
JuniorPCBuilder
July 6, 2014 3:02:42 PM
Steve Fallon said:
I bought my processor at Microcenter about a week ago, so I can still return it. Does that seem to be the way to go?I suppose if you feel that confident that it's the CPU then it couldn't hurt to swap them out. That said, have you tried checking your minidump directory for any *.dmp files that may point to error details?
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ironhelix4
July 8, 2014 9:10:05 AM
Steve Fallon
July 8, 2014 8:13:25 PM
warpol
July 10, 2014 11:26:29 AM
Steve Fallon said:
ironhelix4 said:
its the Gigabyte board, widespread issue, I haven't found an answer yet though. I just updated my bios and that seems to have done the trick. Don't know why I didn't try that earlier. Give it a try and let me know how it goes.
I have the same error with the same motherboard. Can you tell me what version of bios are you using now?
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Damex1cano
August 12, 2014 7:53:47 PM
Steve Fallon
August 12, 2014 8:04:21 PM
NBSeen
September 4, 2014 9:32:55 PM
I had same problem but you don't notice till you check bios were the CPU is at stock voltage over 1.25+ and its on adaptive. To fix this set your voltage to 1.200 exactly if u want to run at 4.4 GHz including turbo. If u just want to run at 4.0 just set voltage to 1.000-1.100 and you will see a temp drop from 80-100C with hyper 212 evo to 65-73C = problem solved.
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br4i4n
September 30, 2014 9:26:43 AM
shikadens
October 1, 2014 4:09:24 AM
Hi guys, I was experiencing the exact same issue with my Z97X-UD5H and 4790k.
After assembling my rig and installing windows I checked BIOS and noticed that CPU is running on an unusually high voltage, something around 1.4 but I figured that "hey, it's Gigabyte so they know what they are doing" (no need to say that all the settings were out of the box - all auto).
I started prime95 and the system crashed in below 1 sec, instantly after clicking ok.
I started digging for solutions and tried updating BIOS (F8) - it didn't work. Same behaviour as before, crashing after 1 sec.
So I searched a bit more (OC forums, manuals etc.) and came up with this solution:
CPU CLOCK ratio: 44
I set Vcore manually to 1.13
CPU VRIN external override to 2.00
CPU VRIN loadline calibration: extreme
CPU VRIN current protection: extreme
PWM Phase Control: eXm Perf
and everything else on auto.
After that I was able to run prime95 (small FTTs) for 4 hours with no issues.
Max temps were around 80C (my cooling: corsair h110).
I hope this helps!
After assembling my rig and installing windows I checked BIOS and noticed that CPU is running on an unusually high voltage, something around 1.4 but I figured that "hey, it's Gigabyte so they know what they are doing" (no need to say that all the settings were out of the box - all auto).
I started prime95 and the system crashed in below 1 sec, instantly after clicking ok.
I started digging for solutions and tried updating BIOS (F8) - it didn't work. Same behaviour as before, crashing after 1 sec.
So I searched a bit more (OC forums, manuals etc.) and came up with this solution:
CPU CLOCK ratio: 44
I set Vcore manually to 1.13
CPU VRIN external override to 2.00
CPU VRIN loadline calibration: extreme
CPU VRIN current protection: extreme
PWM Phase Control: eXm Perf
and everything else on auto.
After that I was able to run prime95 (small FTTs) for 4 hours with no issues.
Max temps were around 80C (my cooling: corsair h110).
I hope this helps!
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Reply to shikadens
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br4i4n
October 1, 2014 6:32:15 AM
br4i4n
October 1, 2014 6:41:41 AM
shikadens said:
Hi guys, I was experiencing the exact same issue with my Z97X-UD5H and 4790k. After assembling my rig and installing windows I checked BIOS and noticed that CPU is running on an unusually high voltage, something around 1.4 but I figured that "hey, it's Gigabyte so they know what they are doing" (no need to say that all the settings were out of the box - all auto).
I started prime95 and the system crashed in below 1 sec, instantly after clicking ok.
I started digging for solutions and tried updating BIOS (F8) - it didn't work. Same behaviour as before, crashing after 1 sec.
So I searched a bit more (OC forums, manuals etc.) and came up with this solution:
CPU CLOCK ratio: 44
I set Vcore manually to 1.13
CPU VRIN external override to 2.00
CPU VRIN loadline calibration: extreme
CPU VRIN current protection: extreme
PWM Phase Control: eXm Perf
and everything else on auto.
After that I was able to run prime95 (small FTTs) for 4 hours with no issues.
Max temps were around 80C (my cooling: corsair h110).
I hope this helps!
You did update BIOS and doesn't work?
I had same problem and I solve disabling the turbo boost.
Another user was able to solve the problem when updated the BIOS.
Look: http://www.techsupportforum.com/forums/f15/solved-unexp...
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Reply to br4i4n
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shikadens
October 1, 2014 2:44:02 PM
Yeah sure, that also worked, sorry. I just wanted to squeeze some extra performance from my system and frankly being able to run this CPU only @4GHz without turbo option is a little disappointing. So I upped the clock to 4,4Ghz with a moderate Vcore and wanted to share this with you, so u dont have to give up turbo boost completely. Cheers
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David36
October 1, 2014 3:56:20 PM
http://www.intel.com/support/processors/corei7/sb/CS-03...
According this this, your 4790k with turbo boost enabled should be running at 4.2 GHz on 4 core loads and 4.4 GHz for 2 core loads, so technically 4.4 GHz on the 4790k on 4 core loads is overclocking, and probably your 4790k just can't handle 4.4 GHz turbo boost on 4 core loads. Try setting you CPU turbo ratios to their default settings and see if it fixes your instability issues.
According this this, your 4790k with turbo boost enabled should be running at 4.2 GHz on 4 core loads and 4.4 GHz for 2 core loads, so technically 4.4 GHz on the 4790k on 4 core loads is overclocking, and probably your 4790k just can't handle 4.4 GHz turbo boost on 4 core loads. Try setting you CPU turbo ratios to their default settings and see if it fixes your instability issues.
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shikadens
October 3, 2014 1:54:51 AM
Actually with the setting I mentioned above my CPU handles 4,4Ghz perfectly well.
As I said I ran prime95 for 4 hours and it didn't crash and the temps were stable. After that I just stopped the test. I know some people suggest that u test it for 12h or so but I just didn't have time for that.
My guess is that in everyday use this system is highly unlikely to crash.
As I said I ran prime95 for 4 hours and it didn't crash and the temps were stable. After that I just stopped the test. I know some people suggest that u test it for 12h or so but I just didn't have time for that.
My guess is that in everyday use this system is highly unlikely to crash.
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