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Windows 7: Rapid BSOD crashes

31 May 2011   #11

Win 7 Professional 64bit

Ran the Small FTTs test... got an error on one of the 4 workers after about 12 hours... a Fatal Rounding error again.
Will run the Large FTTs test tonight when I leave for work.

My System SpecsSystem Spec
31 May 2011   #12
Microsoft MVP


The following is a DRAFT:
DRAFT Prime95 testing procedure
This is in case you are getting errors in Prime95 and want to nail down the cause

Run HDD diag and MemTest prior to Prime95

Run Blend test
Run Inplace Large FFT's test
Run Small FFT's test

Run CPU Stress Tests
- 7Byte : Hot CPU Tester Pro
- 7Byte : BurnIn64
- CPU Stress test - -
- Fossil Free Online CPU Load or Stress Test.
- CPU Stability Test description, System Resources Tune-Up. Downloads List By All Time Popularity | PCWorld | PCWorld
- CPU Stress test - -
- |MG| CPU Stability Test 6.0 Download
- LinX - A simple Linpack interface - XtremeSystems Forums

Run Video Stress Tests
- FurMark: VGA Stress Test, Graphics Card and GPU Stability Test, Burn-in Test, OpenGL Benchmark and GPU Temperature | oZone3D.Net
- МИ NVIDIA / Утилиты / VMT
- МИ NVIDIA / Утилиты / Artifact Locator

Swap RAM sticks around per Steps 7 through 10 of this link and run Prime95 (in Blend mode) on each stick/slot: Memory Diagnostics
This is because of issues found in this topic:
Small FFT's test CPU cache and very little memory.
Large FFT's access' a lot of memory - but in-place option keeps it limited
Blend is not run in-place, so it cycles the tests through a lot of RAM

All tests stress the CPU
In-place large FFT's and Blend also test CPU/RAM interface (mobo in all but Athlon64 and Intel i-series)
- This would then be testing the memory controller onboard the CPU in the Athlon64 and i-series processors
In-place large FFT's stress CPU more than Blend
MemTest is better at testing RAM

Prime 95 tests 3 things:
- Memory
- CPU/RAM interface (mobo in all but Athlon64 and Intel i-series)

FWIW - the distinction between RAM and different types of memory in the system is one that I've made. The documentation that I've read speaks of RAM issues and CPU cache - and doesn't mention the other aspects. BUT, this is just speculation on my part, so we'll have to see how it works for us.
Link to explanation about i-series CPU/RAM interface: Intel Core - Wikipedia, the free encyclopedia
Common features of all Nehalem based processors include an integrated DDR3 memory controller as well as QuickPath Interconnect or PCI Express and Direct Media Interface on the processor replacing the aging quad-pumped Front Side Bus used in all earlier Core processors.
Please run several of the CPU stress tests to see if the CPU errors out on you - that's what I suspect since you have errors in the small FFT test.
My System SpecsSystem Spec

 Rapid BSOD crashes

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