BSOD issues - F4 error

My computer is coming up to a year old and I've been having some issues with BSOD, please find the specs below and any help would be greatly appreciated.
Processor: i7-4790k Not OC'd
Mobo: Z97S SLI KRAIT EDITION
RAM: Corsair Vengence 2400Mhz CL11 XMP Graphics Card: Nvidia Quadra 4000 - Currently not installed as I thought this was causing the issue, but issue keeps persisting.
PSU: EVGA 500b
HDD: Kingston 240SSD + Samsung 1TB (pretty old)
OS: Win 7 same issue with Win10 to a lesser degree, since upgrading to Win 7 the error is more common.
Background: Issue occurs when the PC has been on for extended periods of time. Also occasionally happens when the computer has been put into sleep state and even then I've found the computer to have blue screened through the night even when it was put to sleep.
If you require any extra information I'll be happy to provide.

I've uploaded the dump files here Attachment 387104

Hi,
It seemed to be having issues zipping the files but i managed to copy them over, hopefully these are a bit more useful

thanks for your help!

SSD Firmware is up to date.
there was a BIOS update and windows updates all up to do date, seemed to get better for a few days but Ive since had 3 '7a' bluescreens in 2 days... (Ive only ever seen 'F4' BSODs before now) i've uploaded DM log again in case there was 2 issues and one is now fixed from the bios update.

System file check resulted in the following:
"Windows Resource Protection did not find any integrity violations."

speccy results at idle are:

Operating System
Windows 7 Professional 64-bit SP1
CPU
Intel Core i7 4790K @ 4.00GHz 25 °C
Haswell 22nm Technology
RAM
8.00GB Dual-Channel DDR3 @ 1199MHz (11-13-13-31)
Motherboard
MSI Z97S SLI Krait Edition (MS-7922) (SOCKET 0) 30 °C
Graphics
DELL U2414H (1920x1080@59Hz)
Intel HD Graphics 4600 (MSI)
Storage
223GB KINGSTON SV300S37A240G ATA Device (SSD) 26 °C
Optical Drives
No optical disk drives detected
Audio
Intel Display Audio

i ran a high res render but didnt see any temp rise much higher than a degree over these figures

Just had an F4 bsod but missed the pop up on start up:

https://drive.google.com/file/d/0B6r...ew?usp=sharing

SeaTools no use as I have an SSD,
ran chkdsk, no major issues,

On HDTune:

Error Scan screenshot attached,
Benchmark screenshot attached

Health -

HD Tune: KINGSTON SV300S37A240G Health

ID Current Worst ThresholdData Status
(01) Raw Read Error Rate 95 95 50 163107055 Ok
(05) Reallocated Sector Count 100 100 3 0 Ok
(09) Power On Hours Count 100 100 0 17 Ok
(0C) Power Cycle Count 100 100 0 23 Ok
(AB) (unknown attribute) 100 100 0 0 Ok
(AC) (unknown attribute) 100 100 0 0 Ok
(AE) (unknown attribute) 0 0 0 8 Ok
(B1) (unknown attribute) 0 0 0 2 Ok
(B5) (unknown attribute) 100 100 0 0 Ok
(B6) (unknown attribute) 100 100 0 0 Ok
(BB) (unknown attribute) 100 100 0 0 Ok
(BD) (unknown attribute) 29 37 0 2424861 Ok
(C2) Temperature 29 37 0 2424861 Ok
(C3) Hardware ECC Recovered 120 120 0 163107055 Ok
(C4) Reallocated Event Count 100 100 3 0 Ok
(C9) TA Counter Detected 120 120 0 163107055 Ok
(CC) Soft ECC Correction 120 120 0 163107055 Ok
(E6) GMR Head Amplitude 100 100 0 100 Ok
(E7) Temperature 98 98 11 1 Ok
(E9) (unknown attribute) 0 0 0 -5166 Ok
(EA) (unknown attribute) 0 0 0 42 Ok
(F1) (unknown attribute) 0 0 0 42 Ok
(F2) (unknown attribute) 0 0 0 676 Ok
(F4) (unknown attribute) 99 99 10 5701682 Ok

Power On Time : 17
Health Status : Ok