Error Free-ness was fun while it lasted

Win7 RC Build 7100.
While half-sleeping on the couch, computer shut off. Blamed it on parents. Spent 15 minutes on the computer and got a BSOD. Rebooted, got this error notice.

 Spoiler

Code:

Problem signature:
  Problem Event Name:    BlueScreen
  OS Version:    6.1.7100.2.0.0.256.1
  Locale ID:    1033

Additional information about the problem:
  BCCode:    1a
  BCP1:    00000411
  BCP2:    C0736DA8
  BCP3:    30AAA820
  BCP4:    C0736DB9
  OS Version:    6_1_7100
  Service Pack:    0_0
  Product:    256_1

Files that help describe the problem:
  C:\Windows\Minidump\082309-22245-01.dmp
  C:\Users\Chris\AppData\Local\Temp\WER-36083-0.sysdata.xml

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If the online privacy statement is not available, please read our privacy statement offline:
  C:\Windows\system32\en-US\erofflps.txt

BSOD said a 'Memory Management' error, or something. Didn't catch it.
What's wrong? Would it be fixed by reinstalling with the DVD instead of the setup.exe, like I did? *facepalm*

That could mean that your RAM is starting to fail you, or if you just bought them, you have bad RAM sticks.

How long does RAM last? Mine came with the computer, which is about 2 years old.
Ironicly, I was planning on getting more RAM... even went to BestBuy for a price-check yesterday. ;-;

Could mean that some program was acting up.

If it happens again, address the issue. If it's a one time thing, you should be fine.