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New build, Voltage recommends?

By themitchguy
Sep 24, 2009
  1. I recently built a computer, and it freezes everytime it's turned on, but usually after startup, past the booting, but before the welcome screen. about half the time it makes it past that stage. Memtest was run twice, and no errors were shown. I'm wondering if it's a voltage problem, and was also wondering if you guys could recommend voltage levels for it..

    Specs:
    Motherboard: EVGA nForce 750i SLI Socket 775
    Processor: Intel Core 2 Quad Q8200 2.33Ghz 4MB
    OS: Vista Premium 64-bit
    RAM: OCZ SLI 4096MB PC6400 DDR2 800MHz (2x2048)
    HD: WD Caviar Green 1TB 32MB/SATA-3G
    PS: Apevia ATX - IB680W-GN (Iceberg) 680W
    Video Card: EVGA GeForce GTX 260 Core 216 896MB

    btw: on the RAM, it says 5-4-4@2.1v, is that the voltage?
     
  2. Ritwik7

    Ritwik7 TechSpot Chancellor Posts: 1,672   +9

    Yes, I think that the RAM is to be run at 2.1v.
     
  3. themitchguy

    themitchguy TS Rookie Topic Starter Posts: 16

    thanks for a quick reply!
    alright, so do I change the "system voltage" setting for Memory in the CMOS from 1.900V to 2.100V?
     
  4. Ritwik7

    Ritwik7 TechSpot Chancellor Posts: 1,672   +9

    I think you need to change the DRAM voltage. Check your motherboard manual for further instructions.

    You could also try running the PC with a single RAM module inserted and check what happens.
     
  5. themitchguy

    themitchguy TS Rookie Topic Starter Posts: 16

    The motherboard came with no manual, but where would one change the voltage setting?

    Also, running with one stick works most of the time, with either stick.
     
  6. Ritwik7

    Ritwik7 TechSpot Chancellor Posts: 1,672   +9

    The voltage settings are all available in the BIOS. Try downloading the manual from the internet.

    Now, you didn't mention that before. But what do you mean by "works most of the time"?
     
  7. Ritwik7

    Ritwik7 TechSpot Chancellor Posts: 1,672   +9

  8. themitchguy

    themitchguy TS Rookie Topic Starter Posts: 16

    Sometimes the system freezes, but most of the time it runs for long period of time, but this is only the case with just 1 stick of RAM.

    also, what does the 5-4-4 mean?
     
  9. Ritwik7

    Ritwik7 TechSpot Chancellor Posts: 1,672   +9

  10. themitchguy

    themitchguy TS Rookie Topic Starter Posts: 16

    ah ok thanks!
    but still, any voltage recommendations?
    or as to why it only works with one stick at a time?
     
  11. Ritwik7

    Ritwik7 TechSpot Chancellor Posts: 1,672   +9

    Try running it at the recommended voltage of 2.1 V and recommended timings.
     
  12. themitchguy

    themitchguy TS Rookie Topic Starter Posts: 16

    timings? such as the tCL, tRCD, tRP, and tRAS? change those values to the 5-4-4-15 (manufacture CAS latency)? what about the Command Per Clock? it's set at Auto(1T) should i change that?
     
  13. Ritwik7

    Ritwik7 TechSpot Chancellor Posts: 1,672   +9

    I don't think you need to change the Command Per Clock. Hopefully someone more knowledgeable as far as RAM is concerned would help you out here.

    However, let us know how it goes.
     
  14. themitchguy

    themitchguy TS Rookie Topic Starter Posts: 16

    nope, still freezing like usual!
     
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