need a new psu

Discussion in 'General Hardware' started by tr4l1975, Mar 26, 2007.

  1. tr4l1975

    tr4l1975 Ancient Guru

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    [​IMG]

    when I stress test using orthos my +12v drops to 11.84v my cpu fan speed drops to around 600 rpm's and my temps go through the roof. things don't change when I unconnect the fans from the mobo and connect them directly to the psu. I would like some recommendations for a psu that's modular(preferable, but willing to use non-modular) to run my current rig until I can upgrade to better. my budget is a crappy 70 dollars possibly 80(fixed income bites). please help.
     
  2. Infested Nexus

    Infested Nexus Ancient Guru

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  3. tr4l1975

    tr4l1975 Ancient Guru

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    that would'v worked infested, but my max is $80 and that one is $99.99 with a $40 rebate making it $59.99. I need a psu that's no more than $80 that includes shiipping and handling.I apologize for not speficying that before.
     
    Last edited: Mar 26, 2007
  4. kwak

    kwak Ancient Guru

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    11.84v is still well within spec. i dont think this is a psu problem, but cant think of what does cause those fan speed drops
     

  5. tr4l1975

    tr4l1975 Ancient Guru

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    it's just the cpu fan that does this, I also noticed this when the side panel was off and the temps rose just the same. I don't have C'N'Q, and I didn't enable the cpu thermal throttling in my bios either, I have all my fans set to run full speed at temps over 45c and to turn off at temps below 32c. all my connections are secure(nothing loose). so after seeing the voltage drop I thought my psu may be the culprit, any ideas.
     
  6. kwak

    kwak Ancient Guru

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    if its only the cpu fan that drops, its probably a faulty fan i think. although i dont understand why it would drop the rpms all of a sudden.
     
  7. CTman

    CTman Ancient Guru

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    Consider this one which is affordable and has quite alot of power as well: Rosewill RP550-2 ATX 2.01 550W Power Supply - Retail in black color

    Rosewill RP550-2-S ATX12V v2.01 550W Power Supply - Retail in Silver color

    $54.99 (newegg)

    This Rosewill RP550-2 is an ATNG Power built power supply and is a quite good power supply, especially for this price: alot of power 35 amps on the combined 12V rails, stable rails, but only the 12V atx cable is sleeved (if I am right) and no active pfc and the use of "Fuhjyyu caps", but if you have good ventilation/airflow in the PC case, nothing shall happen and you will be fine.

    There are other Rosewill Power supplies that are built by Solytech/Deer, which got poorer quality components in it and I wouldn't buy these Solytech/Deer psu's.

    Or this one: Enhance ENP-5150GH 500W ATX12V Rev.2.2 (24/20+8/4+6), 80+ RoHS, Quiet PSU
    $69.01 (eWiz)

    Or this one: Enhance ENS-0555 550W EPS12V 24/8pin SLI&2Xeon PFC Power Supply
    $78.28 (eWiz)

    38 amps on 12V (42 amps Peak) more than enough for a Geforce 8800gts;
    Active PFC, High Efficiency; if I am right, it's Crossfire ready;


    Good luck!
     
  8. MTL

    MTL Maha Guru

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    The Enhance ENP-5150GH might very well have problems booting with his DFI mobo due to the limited +5VSB output amperage of the PSU.

    Personally, I couldn't get the 5150GH to boot on my SLI-DR Expert come hell or high water but the Silverstone ST50EF booted without a problem. Go figure considering the are basically the same PSU...

    Best of all Silverstone has better RMA and customer service that Enhance.
     
  9. tr4l1975

    tr4l1975 Ancient Guru

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    thanks for all the suggestions, I will keep these in mind. Everthing runs where it should if I don't stress my rig, I may just wait until I have more money to buy a higher end PSU.(no OC or games for a while!)
     
  10. tr4l1975

    tr4l1975 Ancient Guru

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    I found my problem, my exhaust fan was drawing too much juice and taking away form the cpu fan(both fan connectors are rright next to each other on the mobo.) So I took a cord for my psu that had a fan connector and a drive power connector, I plugged my fan into that and my FDD into it also, now the rpm's don't drop at all and my voltages on the +12v stay around 11.90v(in everest anyway)thanks for your help.
     

  11. tr4l1975

    tr4l1975 Ancient Guru

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    I spoke to soon, as soon as I tyr to OC the rpm's dropped again! arrrrrgh!
     
  12. tr4l1975

    tr4l1975 Ancient Guru

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    ok, I feel like a noob now, I was looking at my core temps when this was happening. I the looked at the processor(just cpu in everest.) I noticed that didn't vary hardly at all, I went into bios and found that the stock setting was to turn the cpu fan to full speed if the cpu temp went over 50c, well that does no good when the cores get there in seconds. I changed that value to 36c and the fan is working properly now. I'm still going to consider switchin psu's though. thanks again.
     

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