bsod while using pc, error ntoskrnl.exe=7fd00

There are some 0x124, they usually mean hardware problems, fortunately it doesn't 100% look like that.
In the most recent crashes, the network drivers and video drivers have been flagged.

Are you using a USB network adapter?
If you are, I suggest to not use it while troubleshooting.

Code:

fffff880`02d1af58  fffff880`0462d27c USBPORT!USBPORTSVC_LogEntry+0x2c
fffff880`02d1afa8  fffff880`04606f69 USBPORT!USBPORT_EndpointFromHandle+0x29
fffff880`02d1afb8  fffff880`0461156a USBPORT!GetHcFdoExt+0x1a
fffff880`02d1afc8  fffff880`0461156a USBPORT!GetHcFdoExt+0x1a
fffff880`02d1afd8  fffff880`04612960 USBPORT!USBPORT_Core_iInsertPriorityTransferDirect+0x190
fffff880`02d1afe8  fffff880`0460f9b9 USBPORT!USBPORT_TxSetState+0x1d
fffff880`02d1aff8  fffff880`046025c2 USBPORT!USBPORT_Xdpc_iSetState+0x2a
fffff880`02d1b018  fffff880`04612aed USBPORT!USBPORT_Core_iInsertPriorityTransfer+0x131
fffff880`02d1b028  fffff880`04602783 USBPORT!USBPORT_Xdpc_iSignal+0xcb
fffff880`02d1b058  fffff880`04605fa5 USBPORT!USBPORT_ReleaseEpListLock+0x21
fffff880`02d1b078  fffff880`04605fa5 USBPORT!USBPORT_ReleaseEpListLock+0x21
fffff880`02d1b098  fffff880`0462a0ad USBPORT!USBPORTSVC_EtwWrite+0x2d
fffff880`02d1b0a8  fffff880`0462d27c USBPORT!USBPORTSVC_LogEntry+0x2c
fffff880`02d1b0b8  fffff880`0462d27c USBPORT!USBPORTSVC_LogEntry+0x2c
fffff880`02d1b0c8  fffff880`0461277e USBPORT!USBPORT_Core_QueueTransferUrb+0x192
fffff880`02d1b0d8  fffff880`042213be usbehci!EHCI_iEnableAsyncList+0x172
fffff880`02d1b0e8  fffff880`0421cf14 usbehci!EHCI_DisablePeriodicList+0x118
fffff880`02d1b108  fffff880`0462d27c USBPORT!USBPORTSVC_LogEntry+0x2c
fffff880`02d1b138  fffff880`04225765 usbehci!EHCI_NotifyTransferQueueState+0x165

Please uninstall everything of AMD using Display Driver Uninstaller and install new drivers from AMD

Code:

fffff880`02916f68  fffff880`0401a0c6Unable to load image atikmpag.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for atikmpag.sys
*** ERROR: Module load completed but symbols could not be loaded for atikmpag.sys
 atikmpag+0x50c6
1: kd> lmvm atikmdag
start             end                 module name
fffff880`0486d000 fffff880`051b0000   atikmdag T (no symbols)           
    Loaded symbol image file: atikmdag.sys
    Image path: atikmdag.sys
    Image name: atikmdag.sys
    Timestamp:        Thu Jun 30 05:59:27 2011 (4E0BF49F)
    CheckSum:         008F55FA
    ImageSize:        00943000
    Translations:     0000.04b0 0000.04e4 0409.04b0 0409.04e4

Please check Realtek for driver updates
Driver Reference Table - Rt64win7.sys

Code:

fffff880`02917478  fffff880`04160d97Unable to load image Rt64win7.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for Rt64win7.sys
*** ERROR: Module load completed but symbols could not be loaded for Rt64win7.sys
 Rt64win7+0x5d97
1: kd> lmvm Rt64win7
start             end                 module name
fffff880`0415b000 fffff880`041d0000   Rt64win7 T (no symbols)           
    Loaded symbol image file: Rt64win7.sys
    Image path: Rt64win7.sys
    Image name: Rt64win7.sys
    Timestamp:        Thu Apr 21 20:15:33 2011 (4DB07445)
    CheckSum:         00076017
    ImageSize:        00075000
    Translations:     0000.04b0 0000.04e4 0409.04b0 0409.04e4

Please fill in your system specs

Please follow this tutorial and download the tool. The tool will give you detailed information about your system specs, please fill in your system specs more completely including PSU, cooling system and other used stuff.
How to fill in your system specs:

What happens when you connect the USB back in?