Freezing 2012 MacBook Pro Retina 15

Hi everyone, I've recently acquired a 2012 rMBP 15 and it likes to freeze once per week for no apparent reason. Almost every time it froze from just scrolling on either Safari or Chrome. I've tried doing a clean reinstall of Yosemite from USB about 10 days ago and I thought I was in the all clear until it just happened again today. When it freezes, it would freeze for a minute and then it would restart it self but If I had music playing, it would loop the same 1 second of the music until it restarts. I've had a look through the console log for each crash and I can't seem to find anything significant that could've caused this.

I've tried turning off Handoff, switching to Chrome, verifying and repairing the disk permissions and nothing seemed to have worked. I also can't seem to replicate the crash intentionally, it just happens on its own every 4-10days. I reinstalled steam last night, could this be the cause?

Heres a log of the most recent crash:

03/05/2015 13:27:20.162 WindowServer[136]: CGXDisplayDidWakeNotification [162094635917798]: posting kCGSDisplayDidWake

03/05/2015 13:27:20.175 WindowServer[136]: handle_will_sleep_auth_and_shield_windows: Deferring.

03/05/2015 13:27:20.334 imagent[263]: <IMMacNotificationCenterManager: 0x7fc8cb307460>: notification observer: com.apple.FaceTime notification: __CFNotification 0x7fc8cb207420 {name = _NSDoNotDisturbDisabledNotification}

03/05/2015 13:27:20.334 identityservicesd[261]: <IMMacNotificationCenterManager: 0x7fb9438200e0>: notification observer: com.apple.iChat notification: __CFNotification 0x7fb941fc8a40 {name = _NSDoNotDisturbDisabledNotification}

03/05/2015 13:27:20.350 imagent[263]: <IMMacNotificationCenterManager: 0x7fc8cb307460>: NC Disabled: NO

03/05/2015 13:27:20.350 identityservicesd[261]: <IMMacNotificationCenterManager: 0x7fb9438200e0>: NC Disabled: NO

03/05/2015 13:27:20.361 imagent[263]: <IMMacNotificationCenterManager: 0x7fc8cb307460>: DND Enabled: NO

03/05/2015 13:27:20.361 identityservicesd[261]: <IMMacNotificationCenterManager: 0x7fb9438200e0>: DND Enabled: NO

03/05/2015 13:27:20.362 imagent[263]: <IMMacNotificationCenterManager: 0x7fc8cb307460>: Updating enabled: YES (Topics: (

"com.apple.ess",

"com.apple.private.ac"

))

03/05/2015 13:27:20.362 identityservicesd[261]: <IMMacNotificationCenterManager: 0x7fb9438200e0>: Updating enabled: YES (Topics: (

"com.apple.private.alloy.icloudpairing",

"com.apple.private.alloy.continuity.encryption",

"com.apple.private.alloy.continuity.activity",

"com.apple.private.alloy.idstransfers",

"com.apple.private.ids",

"com.apple.private.alloy.phonecontinuity",

"com.apple.ess",

"com.apple.madrid",

"com.apple.private.alloy.continuity.auth",

"com.apple.private.ac",

"com.apple.private.alloy.idsremoteurlconnection",

"com.apple.private.alloy.sms",

"com.apple.private.alloy.screensharing",

"com.apple.private.alloy.maps",

"com.apple.private.alloy.callhistorysync",

"com.apple.private.alloy.continuity.tethering"

))

03/05/2015 13:27:20.362 identityservicesd[261]: <IMMacNotificationCenterManager: 0x7fb94390d2c0>: notification observer: com.apple.iChat notification: __CFNotification 0x7fb941d4c660 {name = _NSDoNotDisturbDisabledNotification}

03/05/2015 13:27:20.366 identityservicesd[261]: <IMMacNotificationCenterManager: 0x7fb94390d2c0>: NC Disabled: NO

03/05/2015 13:27:20.370 identityservicesd[261]: <IMMacNotificationCenterManager: 0x7fb94390d2c0>: DND Enabled: NO

03/05/2015 13:27:20.371 identityservicesd[261]: <IMMacNotificationCenterManager: 0x7fb94390d2c0>: Updating enabled: YES (Topics: (

"com.apple.madrid"

))

03/05/2015 13:27:24.422 locationd[77]: Location icon should now be in state 'Active'

03/05/2015 13:27:24.525 com.apple.xpc.launchd[1]: (com.apple.imfoundation.IMRemoteURLConnectionAgent) The _DirtyJetsamMemoryLimit key is not available on this platform.

03/05/2015 13:27:25.838 locationd[77]: NETWORK: requery, 0, 0, 0, 0, 88, items, fQueryRetries, 0, fLastRetryTimestamp, 452346032.6

03/05/2015 13:27:26.509 locationd[77]: Location icon should now be in state 'Inactive'

03/05/2015 13:27:31.519 sharingd[253]: 13:27:31.518 : SDActivityAdvertiser::continuity:didFailToStartAdvertisingOfType:withError: Activity (The operation couldn’t be completed. (com.apple.identityservices.error error 200.))

03/05/2015 13:27:35.183 com.apple.xpc.launchd[1]: (com.apple.imfoundation.IMRemoteURLConnectionAgent) The _DirtyJetsamMemoryLimit key is not available on this platform.

03/05/2015 13:27:38.469 discoveryd[71]: Basic DNSResolver Re-Binding to random udp port 61355

03/05/2015 13:27:40.518 sharingd[253]: 13:27:40.517 : SDActivityAdvertiser::continuity:didFailToStartAdvertisingOfType:withError: Activity (The operation couldn’t be completed. (com.apple.identityservices.error error 200.))

03/05/2015 13:27:49.791 sharingd[253]: 13:27:49.790 : SDActivityAdvertiser::continuity:didFailToStartAdvertisingOfType:withError: Activity (The operation couldn’t be completed. (com.apple.identityservices.error error 200.))

03/05/2015 13:27:54.158 lsuseractivityd[251]: -[LSUserActivityClientProcess doUpdateUserActivityInfo:makeCurrent:completionHandler:], refusing to register user activity from client, and returning error Error Domain=LSContinuityErrorDomain Code=-108 "The operation couldn’t be completed. (LSContinuityErrorDomain error -108.)" for item <__NSConcreteUUID 0x7f8dcca025d0> D4957B22-3D1B-42FA-A3FD-AFD217B6F599 NSUserActivityTypeBrowsingWeb (LSUserActivityClientProcess.m #1148)

03/05/2015 13:27:55.260 sharingd[253]: 13:27:55.259 : SDActivityAdvertiser::continuity:didFailToStartAdvertisingOfType:withError: Activity (The operation couldn’t be completed. (com.apple.identityservices.error error 200.))

03/05/2015 13:28:08.009 sharingd[253]: 13:28:08.009 : SDActivityAdvertiser::continuity:didFailToStartAdvertisingOfType:withError: Activity (The operation couldn’t be completed. (com.apple.identityservices.error error 200.))

03/05/2015 13:28:16.492 sharingd[253]: 13:28:16.491 : SDActivityAdvertiser::continuity:didFailToStartAdvertisingOfType:withError: Activity (The operation couldn’t be completed. (com.apple.identityservices.error error 200.))

03/05/2015 13:29:37.000 bootlog[0]: BOOT_TIME 1430656177 0

I've read from other posts that GPU switching can cause freezing but I don't see anything about GPUs on this log. I have other crash logs saved if required.

What do you guys think? I can't seem to work out if its a hardware or software issue.

Thanks in advance,
Anthony