BSoDs/Freezes seemingly at random

Hey, I've been fighting with my computer for a little over a week now and I'm starting to run out of ideas. It worked fine and dandy and the next day it started to give me BSoDs or just freeze, forcing me to reset the system. The BSoDs give no crash dumps whatsoever but I get them when a system freeze hits.

I rand checkdisk and hd tuner, ran memtest for ~6 hours with no errors and the day before yesterday I did a clean install of windows. It seemed to work for a day and a half then BAM - 2 BSoDs and one freeze in short succession. The BSoDs were while gaming, the freeze came when watching a youtube clip. So far today it's behaved but I've had it shut off for about half of the day too.

My windows 7 is x64.
Not the original installed on the system (was vista, but formated and installed 7 ~1 year ago).
It's a full retail.

The age of the hardware is everything from 1,5 years (motherboard) to half a year (GPU/CPU).
Age of OSinstallation is two days.

Currently running with catalyst 10.12 because I thought I'd go back to GPUdrivers I remember not having issues with in case they were causing anything, but that didn't help.

I'm at my wits end so I'm hoping you can shed some light on this.

And I got another freeze (not a BSoD) which is the more common of the two, and it left this behind.

On Wed 2011-07-27 19:34:52 GMT your computer crashed
crash dump file: C:\Windows\Minidump\072711-16442-01.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0x4B18CC)
Bugcheck code: 0x124 (0x0, 0xFFFFFA80049648F8, 0x0, 0x0)
Error: WHEA_UNCORRECTABLE_ERROR
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
Bug check description: This bug check indicates that a fatal hardware error has occurred. This bug check uses the error data that is provided by the Windows Hardware Error Architecture (WHEA).
This is likely to be caused by a hardware problem problem. This problem might be caused by a thermal issue.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver which cannot be identified at this time.

Been running with Driver Verifier for about a day now, received one BSoD with 0x000000BE (while gaming) and one freeze with 0x00000124 (while watching a video) so I'm guessing something's really about to break/is broken.

Giving up and turning it into a repair shop on Monday and hope they can find the issue because nothing I've tried have helped.

So, I'm back. The service shop said they couldn't find anything and that the tested all the hardware (but I STILL hear that infernal clicking noice from the case) and lo and behold, the very same evening (last Friday) I got the computer back it froze twice.

I'm betting they just let the computer run without actually running any programs on it, that way it doesn't crash - it only crashes when it does something, like downloading something and watching a video simultaneously, or playing a game -sighs-

Well, except for Minecraft. It lets me run Minecraft without problems, but then it's not the most demanding game out there either :)

Still, I'm down to exhanging hardware now. With the freezing/BSoDing (only when running something, like said) and that clicking noise (which doesn't come from any of the fans) which is the most likely culprit to exchange first, the HDDs?

-sighs- It worked fine for two days now after I switched out the hard drives and the RAM, and today it began again. This was readable in event viewer if that helps:

- <Event xmlns="Error">
- <System>
<Provider Name="Microsoft-Windows-WHEA-Logger" Guid="{C26C4F3C-3F66-4E99-8F8A-39405CFED220}" />

<EventID>18</EventID>

<Version>0</Version>

<Level>2</Level>

<Task>0</Task>

<Opcode>0</Opcode>

<Keywords>0x8000000000000000</Keywords>

<TimeCreated SystemTime="2011-08-21T13:16:18.048404400Z" />

<EventRecordID>3737</EventRecordID>

<Correlation ActivityID="{660AFDD7-24DB-44BB-BBAB-55F825E2808C}" />

<Execution ProcessID="1624" ThreadID="1820" />

<Channel>System</Channel>

<Computer>Vrahjin-Dator</Computer>

<Security UserID="S-1-5-19" />

</System>


- <EventData>
<Data Name="ErrorSource">3</Data>

<Data Name="ApicId">0</Data>

<Data Name="MCABank">0</Data>

<Data Name="MciStat">0xf200084000000800</Data>

<Data Name="MciAddr">0x0</Data>

<Data Name="MciMisc">0x0</Data>

<Data Name="ErrorType">10</Data>

<Data Name="TransactionType">256</Data>

<Data Name="Participation">0</Data>

<Data Name="RequestType">0</Data>

<Data Name="MemorIO">0</Data>

<Data Name="MemHierarchyLvl">0</Data>

<Data Name="Timeout">0</Data>

<Data Name="OperationType">256</Data>

<Data Name="Channel">256</Data>

<Data Name="Length">928</Data>

<Data Name="RawData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ata>

</EventData>


</Event>

-----

- <Event xmlns="Error">
- <System>
<Provider Name="Microsoft-Windows-WHEA-Logger" Guid="{C26C4F3C-3F66-4E99-8F8A-39405CFED220}" />

<EventID>18</EventID>

<Version>0</Version>

<Level>2</Level>

<Task>0</Task>

<Opcode>0</Opcode>

<Keywords>0x8000000000000000</Keywords>

<TimeCreated SystemTime="2011-08-21T14:15:56.005662300Z" />

<EventRecordID>3981</EventRecordID>

<Correlation ActivityID="{A239BB08-46F5-44EE-8181-E0BB01584224}" />

<Execution ProcessID="1564" ThreadID="2280" />

<Channel>System</Channel>

<Computer>Vrahjin-Dator</Computer>

<Security UserID="S-1-5-19" />

</System>


- <EventData>
<Data Name="ErrorSource">3</Data>

<Data Name="ApicId">0</Data>

<Data Name="MCABank">0</Data>

<Data Name="MciStat">0xf200084000000800</Data>

<Data Name="MciAddr">0x0</Data>

<Data Name="MciMisc">0x0</Data>

<Data Name="ErrorType">10</Data>

<Data Name="TransactionType">256</Data>

<Data Name="Participation">0</Data>

<Data Name="RequestType">0</Data>

<Data Name="MemorIO">0</Data>

<Data Name="MemHierarchyLvl">0</Data>

<Data Name="Timeout">0</Data>

<Data Name="OperationType">256</Data>

<Data Name="Channel">256</Data>

<Data Name="Length">928</Data>

<Data Name="RawData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ata>

</EventData>


</Event>

-----

Also submitting the last two dumps. PLEASE let me know if you can help, I really don't want to turn this machine to service and pay roughly $176 again for them to find "nothing wrong" with anything.

Just got another one after hours of no problem. Interestingly enough, all three happened when I tried to install Borderlands through Steam. I'll keep using the machine normally without touching that game and see if that helps at all.

Nope, didn't help. The computer froze when booting up another game.

I have zero clues what's wrong here. Guess I'll have to turn it in and hope they'll find something. Again.