IPhone 5s started randomly restarting with iOS 8.1.1

I have had my iPhone 5s since it came out last year and have had no issues. Was among the first adopters of iOS 8 and each upgrade and still never had an issue until downloading iOS 8.1.1. Now every 20-30 minutes the screen goes to the apple logo and it restarts. Maybe takes it 10-15 seconds to be back up and running again. It will do it when I am running programs or if it is just sitting on my desk or on a charger. It has happened while facetiming and ended the call, but one time it happened on a normal call and when it came back on the person was still talking on the line. Weird. How do I get it to calm down?

Howdy Mark,
Welcome to Apple Support Communities.
The article linked below provides troubleshooting suggestions that’ll resolve issues like the one you’ve described, where your iPhone 5S is unexpectedly restarting.
If your iOS device restarts, displays the Apple logo, or powers off while you're using it - Apple Support
Cheers,
-Jason

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Hi,
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Describe the problem in detail!
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Antec P190 Case (Dual power supplies for a total of 1.2 KW of power)
Intel Core I7 2.66
Creative Extreme Gamer Edition PCI E sound card
Mcaffee
BFG 260 GTX
Coolmaster V8 cooler (CPU under stress runs about 70f well below the max of 208f)
Do you have a screenshot?
Nope
My next step is to take out 6 gigs of RAM and see if the issue goes away.
Any suggestions?

Quote
12 Gigs Crucial ram matched to the MoBo using the crucial matching system on the crucial website.
Please provide a link to the Crucial Product site for your memory modules and make a screenshot of the CPU-Z "SPD" view.
Quote
My next step is to take out 6 gigs of RAM and see if the issue goes away.
Test one memory module only and see what happens. If things seem fine, add one more module and test again (and so on).

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bes2dt10
Nov 22, 2013 8:59 AM
The easy and quick way to fix this is to connect your iphone to itune...
1.Go into your iphone (Top right of itune).
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3.Go to options and uncheck all the boxes (make sure you remeber what was been check before you uncheck anything in the boxes).
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5.Wait for it to finish the process (it should delete everything).
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Please shared to other that needed help
Appologiez to my behalf the language, Not really good at English grammas LOL

MacPro Randomly Restarts with Black Screen, Kernal Panic

Please help...
I have a Mac Pro 4,1 Early 2009 running OS10.9.5.    In Feb'14 I installed a new graphics card, NVIDIA Quadro 4000 for Mac. Lately, though, for about the past two months, my computer has suddenly restarted in the middle of a task. It restarts with a black screen. I'd then have to hard-restart my computer to bring my monitor back to life. When the Mac finishes starting up, I am greeted with what I understand to be a Kernal Panic report. This problem has been occurring more frequently now, which is prompting this post.
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Thanks for the help!
Here are some Kernal Panic reports from yesterday...
Thu Apr 16 18:55:29 2015
panic(cpu 0 caller 0xffffff7f8bebbb49): NVRM[0/5:0:0]: Read Error 0x0061002c: CFG 0xffffffff 0xffffffff 0xffffffff, BAR0 0x8c000000 0xffffff8189ad4000 0x0c0e80a3, D0, P2/3
Backtrace (CPU 0), Frame : Return Address
0xffffff8188c73be0 : 0xffffff800b423139
0xffffff8188c73c60 : 0xffffff7f8bebbb49
0xffffff8188c73d20 : 0xffffff7f8bf85e4e
0xffffff8188c73d60 : 0xffffff7f8c1479b8
0xffffff8188c73d80 : 0xffffff7f8bf5a263
0xffffff8188c73da0 : 0xffffff7f8bffcbbf
0xffffff8188c73e20 : 0xffffff7f8bea43e2
0xffffff8188c73ee0 : 0xffffff7f8be71a45
0xffffff8188c73f20 : 0xffffff800b44a57a
0xffffff8188c73fb0 : 0xffffff800b4d7c67
      Kernel Extensions in backtrace:
         com.apple.nvidia.driver.NVDAResman(8.2.6)[E3CE9F72-FB2A-33B3-BD1B-F34B86518954] @0xffffff7f8be6b000->0xffffff7f8c0defff
            dependency: com.apple.iokit.IOPCIFamily(2.9)[2852ACFE-FD28-3C37-9B39-885201BB8D25]@0xffffff 7f8bac1000
            dependency: com.apple.iokit.IONDRVSupport(2.4.1)[D41125CE-69BD-32E7-9B1D-4E83431662DD]@0xff ffff7f8be55000
            dependency: com.apple.iokit.IOGraphicsFamily(2.4.1)[75D81741-64C1-3941-ADFA-9D6B6C434EE4]@0 xffffff7f8be12000
            dependency: com.apple.AppleGraphicsDeviceControl(3.6.22)[91D61DEC-2946-3790-8134-B808C016C4 C9]@0xffffff7f8be65000
         com.apple.nvidia.driver.NVDAGF100Hal(8.2.6)[A70A96A4-52F6-3303-AF6D-FE537BCFDAC 0]@0xffffff7f8c0ea000->0xffffff7f8c2b7fff
            dependency: com.apple.nvidia.driver.NVDAResman(8.2.6)[E3CE9F72-FB2A-33B3-BD1B-F34B86518954] @0xffffff7f8be6b000
            dependency: com.apple.iokit.IOPCIFamily(2.9)[2852ACFE-FD28-3C37-9B39-885201BB8D25]@0xffffff 7f8bac1000
BSD process name corresponding to current thread: kernel_task
Mac OS version:
13F1077
Kernel version:
Darwin Kernel
And.....
Thu Apr 16 17:40:59 2015
panic(cpu 0 caller 0xffffff7f85abbbb9): NVRM[0/5:0:0]: Read Error 0x0061002c: CFG 0xffffffff 0xffffffff 0xffffffff, BAR0 0x8c000000 0xffffff818371a000 0x0c0e80a3, D0, P2/3
Backtrace (CPU 0), Frame : Return Address
0xffffff81828f3be0 : 0xffffff8005023139
0xffffff81828f3c60 : 0xffffff7f85abbbb9
0xffffff81828f3d20 : 0xffffff7f85b85ebe
0xffffff81828f3d60 : 0xffffff7f85d479b8
0xffffff81828f3d80 : 0xffffff7f85b5a2d3
0xffffff81828f3da0 : 0xffffff7f85bfcc2f
0xffffff81828f3e20 : 0xffffff7f85aa4452
0xffffff81828f3ee0 : 0xffffff7f85a71ab5
0xffffff81828f3f20 : 0xffffff800504a57a
0xffffff81828f3fb0 : 0xffffff80050d7c67
      Kernel Extensions in backtrace:
         com.apple.nvidia.driver.NVDAResman(8.2.6)[272B6397-FEDB-32FC-9035-BDD749284455] @0xffffff7f85a6b000->0xffffff7f85cdefff
            dependency: com.apple.iokit.IOPCIFamily(2.9)[2852ACFE-FD28-3C37-9B39-885201BB8D25]@0xffffff 7f856c1000
            dependency: com.apple.iokit.IONDRVSupport(2.4.1)[D41125CE-69BD-32E7-9B1D-4E83431662DD]@0xff ffff7f85a55000
            dependency: com.apple.iokit.IOGraphicsFamily(2.4.1)[75D81741-64C1-3941-ADFA-9D6B6C434EE4]@0 xffffff7f85a12000
            dependency: com.apple.AppleGraphicsDeviceControl(3.6.22)[91D61DEC-2946-3790-8134-B808C016C4 C9]@0xffffff7f85a65000
         com.apple.nvidia.driver.NVDAGF100Hal(8.2.6)[A70A96A4-52F6-3303-AF6D-FE537BCFDAC 0]@0xffffff7f85cea000->0xffffff7f85eb7fff
            dependency: com.apple.nvidia.driver.NVDAResman(8.2.6)[272B6397-FEDB-32FC-9035-BDD749284455] @0xffffff7f85a6b000
            dependency: com.apple.iokit.IOPCIFamily(2.9)[2852ACFE-FD28-3C37-9B39-885201BB8D25]@0xffffff 7f856c1000
BSD process name corresponding to current thread: kernel_task
Mac OS version:
13F1066
Kernel version:
Darwin Kernel Version 13.4.0: Wed Dec 17 19:05:52 PST 2014; root:xnu-2422.115.10~1/RELEASE_X86_64
Kernel UUID: 45486BF2-BDDE-34CB-8C71-606FF3FE181B
Kernel slide:     0x0000000004e00000
Kernel text base: 0xffffff8005000000
System model name: MacPro4,1 (Mac-F221BEC8)
System uptime in nanoseconds: 1606578028649
last loaded kext at 256099292334: com.apple.filesystems.msdosfs 1.9 (addr 0xffffff7f87340000, size 65536)
last unloaded kext at 316601108169: com.apple.filesystems.msdosfs 1.9 (addr 0xffffff7f87340000, size 57344)
loaded kexts:

panic(cpu 0 caller 0xffffff7f8bebbb49): NVRM[0/5:0:0]: Read Error
Kernel Extensions in backtrace:
         com.apple.nvidia.driver.NVDAResman(8.2.6)
            dependency: com.apple.iokit.IOPCIFamily(2.9)
            dependency: com.apple.iokit.IONDRVSupport(2.4.1)
            dependency: com.apple.iokit.IOGraphicsFamily(2.4.1)
            dependency: com.apple.AppleGraphicsDeviceControl(3.6.22)
         com.apple.nvidia.driver.NVDAGF100Hal(8.2.6)
            dependency: com.apple.nvidia.driver.NVDAResman(8.2.6)
            dependency: com.apple.iokit.IOPCIFamily(2.9)
Once the hexadecimal Addresses are edited out, it is easier to see that the problem was related to the display card. NVRM is the NVIDIA Display RAM on the card. It appears to have failed. This is not an issue with the Driver, but with the card.
Replacing that card with an old one and having the symptoms disappear supports that evidence.

IPhone 5s started randomly restarting with iOS 8.1.1

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