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  1. #1
    Member striker85's Avatar
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    Signs of a failing PSU

    Recently my computer started deciding to turn itself off randomly. I figured it may have been my video card that I may or may not have fudged with some of my tinkering; so I took it out. I replaced the card with a test card that I have lying around and I know is fine. Again, my computer is turning itself off. I go the next step and try another motherboard that I got back from an old RMA and I am positive it is fine. Again, my computer turns itself off. I know it can't be the processor because I just got a brand spanking new Opteron 170 from Newegg. So my last guess is the PSU. In the bios the voltages all look nominal: the 12v is at 12.14v, the 3v is at 3.15v, the 5v is at 5.13....sooooooooo, I have yet to read the voltages with a multimeter or while in Windows, but I'm out of ideas.....Could it possibly be my PSU?
    Heatware Ebay
    Rusty:
    Gigabyte GA-MA78LM-S2H (Rev. 1.0)
    AMD Phenom II 720 (unlocked to 4 cores and oc'd to 3.3 ghz)
    4GB Generic DDR2 (oc'd to 940mhz)
    XFX HD5670
    Corsair 520W PSU

  2. #2
    Member maxfly's Avatar
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    it may be worth a shot to give memtest86+ a try.if you can remove the memory from the mix id say it would most likely be your psu taking its last gasps.any chance you can try a known working psu in your rig?

    I7 2600K-MSI Z68A GD65-MSI GTX 580
    4x4gb Corsair Vengeance-OCZ Agility3 120gb
    WD 320gb-Seasonic X1050,CM HAF-X

    DDC-2 w/Bitspower mini tank
    EK Supreme HF
    DD GTX580
    XSPC RX360

    HEAT

  3. #3

    Destroyer of Spammers, Trolls and Cretins

    Premium Member #12
    RollingThunder's Avatar
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    Jan 2005
    Quote Originally Posted by striker85 View Post
    Recently my computer started deciding to turn itself off randomly. I figured it may have been my video card that I may or may not have fudged with some of my tinkering; so I took it out. I replaced the card with a test card that I have lying around and I know is fine. Again, my computer is turning itself off. I go the next step and try another motherboard that I got back from an old RMA and I am positive it is fine. Again, my computer turns itself off. I know it can't be the processor because I just got a brand spanking new Opteron 170 from Newegg. So my last guess is the PSU. In the bios the voltages all look nominal: the 12v is at 12.14v, the 3v is at 3.15v, the 5v is at 5.13....sooooooooo, I have yet to read the voltages with a multimeter or while in Windows, but I'm out of ideas.....Could it possibly be my PSU?
    Do the Memtest86 test first. What brand of power supply?
    Intel E8500 @ 3608 MHz...............Intel E7500 @ 3333 MHz Home Server
    DFI DK P45 T2RS Plus.................Same
    WD Velociraptor 150 & WD Raptor 74...Raptor 74 - Hitachi Deskstar 1TB
    ATI 5750.............................ATI 6200FX
    Dell Ultra Sharp U2413.............. Dell Ultra Sharp 2209WA
    2 x 2 GB GSkill PC8500 @ DDR2 960....2 x 1 GB GSkill PC8500
    Corsair HX520........................Corsair HX520
    Coolermaster NV 690..................Lian-Li PC-K7
    Vista 64.............................XP Pro
    Experience teaches only the teachable.

  4. #4
    Member striker85's Avatar
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    Its a Rosewill 500 watt PSU
    Heatware Ebay
    Rusty:
    Gigabyte GA-MA78LM-S2H (Rev. 1.0)
    AMD Phenom II 720 (unlocked to 4 cores and oc'd to 3.3 ghz)
    4GB Generic DDR2 (oc'd to 940mhz)
    XFX HD5670
    Corsair 520W PSU

  5. #5
    Epic Fail Guy JamesXP's Avatar
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    England
    How long ago did you get it?
    i5 3570K @ 4.5GHz
    Thermalright Macho 120
    ASRock Z77 Pro4
    8GB Kingston HyperX 1600MHz
    128GB Samsung 830 SSD
    EVGA GTX770 ACX
    EVGA Supernova 750G2
    Corsair 650D

  6. #6

    Destroyer of Spammers, Trolls and Cretins

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    RollingThunder's Avatar
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    Quote Originally Posted by striker85 View Post
    Its a Rosewill 500 watt PSU
    Striker,

    Your symptoms are very similar to a power supply problem, Rosewill's not the best. It's just as easy to make a bootable disk or CD and run Memtest86 for 4-5 full passes to clear that option out of the way and take a few readings with a DMM while you're at it.

    It does sound like the power supply..........
    Intel E8500 @ 3608 MHz...............Intel E7500 @ 3333 MHz Home Server
    DFI DK P45 T2RS Plus.................Same
    WD Velociraptor 150 & WD Raptor 74...Raptor 74 - Hitachi Deskstar 1TB
    ATI 5750.............................ATI 6200FX
    Dell Ultra Sharp U2413.............. Dell Ultra Sharp 2209WA
    2 x 2 GB GSkill PC8500 @ DDR2 960....2 x 1 GB GSkill PC8500
    Corsair HX520........................Corsair HX520
    Coolermaster NV 690..................Lian-Li PC-K7
    Vista 64.............................XP Pro
    Experience teaches only the teachable.

  7. #7
    Member striker85's Avatar
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    I just ran memtest for a full 2 hours, or three passes, and got zero errors. The power supply is a little old, I got it when I first upgraded to 939 about 3 or so years ago.
    Heatware Ebay
    Rusty:
    Gigabyte GA-MA78LM-S2H (Rev. 1.0)
    AMD Phenom II 720 (unlocked to 4 cores and oc'd to 3.3 ghz)
    4GB Generic DDR2 (oc'd to 940mhz)
    XFX HD5670
    Corsair 520W PSU

  8. #8
    Epic Fail Guy JamesXP's Avatar
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    Old rosewill PSUs weren't great.


    Sounds like you need a new PSU.



    Corsair HX520
    i5 3570K @ 4.5GHz
    Thermalright Macho 120
    ASRock Z77 Pro4
    8GB Kingston HyperX 1600MHz
    128GB Samsung 830 SSD
    EVGA GTX770 ACX
    EVGA Supernova 750G2
    Corsair 650D

  9. #9

    Destroyer of Spammers, Trolls and Cretins

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    RollingThunder's Avatar
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    Quote Originally Posted by striker85 View Post
    I just ran memtest for a full 2 hours, or three passes, and got zero errors. The power supply is a little old, I got it when I first upgraded to 939 about 3 or so years ago.
    Striker,

    I think everyone commenting will agree that it looks like your power supply needs to be replaced. It's the only thing left. There are a lot of good ones that won't break the bank depending on your budget. You don't need a large capacity high wattage monster.

    Wait and see if there are any other comments here. We all have a short list of good power supplies that can be posted for you. James listed a good one but there are less expensive ones depending on what you want to spend.
    Intel E8500 @ 3608 MHz...............Intel E7500 @ 3333 MHz Home Server
    DFI DK P45 T2RS Plus.................Same
    WD Velociraptor 150 & WD Raptor 74...Raptor 74 - Hitachi Deskstar 1TB
    ATI 5750.............................ATI 6200FX
    Dell Ultra Sharp U2413.............. Dell Ultra Sharp 2209WA
    2 x 2 GB GSkill PC8500 @ DDR2 960....2 x 1 GB GSkill PC8500
    Corsair HX520........................Corsair HX520
    Coolermaster NV 690..................Lian-Li PC-K7
    Vista 64.............................XP Pro
    Experience teaches only the teachable.

  10. #10
    2500K @4.2GHz, P8P67 PRO, 8GB G.Skill Sniper, RocketFish Case, 2x 6950, X750 PSU, TRUE120


  11. #11
    Member striker85's Avatar
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    What kind of wattage is good for a computer like mine? I did that power calculator but it says I only use 350 watts. I'd like to leave room for a possible crossfire upgrade, or more memory, or more hard drives, or even more fans.
    Heatware Ebay
    Rusty:
    Gigabyte GA-MA78LM-S2H (Rev. 1.0)
    AMD Phenom II 720 (unlocked to 4 cores and oc'd to 3.3 ghz)
    4GB Generic DDR2 (oc'd to 940mhz)
    XFX HD5670
    Corsair 520W PSU

  12. #12
    Epic Fail Guy JamesXP's Avatar
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    Apr 2007
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    England
    500-600W if you want some headroom.


    hint hx520 hint
    i5 3570K @ 4.5GHz
    Thermalright Macho 120
    ASRock Z77 Pro4
    8GB Kingston HyperX 1600MHz
    128GB Samsung 830 SSD
    EVGA GTX770 ACX
    EVGA Supernova 750G2
    Corsair 650D

  13. #13
    Member striker85's Avatar
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    That Corsair is just more money than I want to spend right now. I am eye-balling this Mushkin one though: http://www.newegg.com/Product/Produc...82E16817812002
    Heatware Ebay
    Rusty:
    Gigabyte GA-MA78LM-S2H (Rev. 1.0)
    AMD Phenom II 720 (unlocked to 4 cores and oc'd to 3.3 ghz)
    4GB Generic DDR2 (oc'd to 940mhz)
    XFX HD5670
    Corsair 520W PSU

  14. #14
    Crossfire go with 1900xt.

    It's not worth it to go crossfire imo.

    Corsair 520W if you might plan on doing it though.
    2500K @4.2GHz, P8P67 PRO, 8GB G.Skill Sniper, RocketFish Case, 2x 6950, X750 PSU, TRUE120


  15. #15
    No go on the Mushkin. Doesn't perform well.
    2500K @4.2GHz, P8P67 PRO, 8GB G.Skill Sniper, RocketFish Case, 2x 6950, X750 PSU, TRUE120


  16. #16
    Member striker85's Avatar
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    What are the brands I should stick to? I saw in the sticky the ones to avoid...
    Heatware Ebay
    Rusty:
    Gigabyte GA-MA78LM-S2H (Rev. 1.0)
    AMD Phenom II 720 (unlocked to 4 cores and oc'd to 3.3 ghz)
    4GB Generic DDR2 (oc'd to 940mhz)
    XFX HD5670
    Corsair 520W PSU

  17. #17
    Less money than Mushkin after shipping and less less after MIR.

    http://www.newegg.com/Product/Produc...stealthXstream

    You really have to check out the reviews on the PSU's along with the trusted PSU company list which is somewhere...

    *btw only 3 SATA powers

    1 x Main connector (20+4Pin)
    1 x 12V(4/8Pin)
    6 x peripheral
    3 x SATA
    2 x Floppy
    2 x PCI-E
    2500K @4.2GHz, P8P67 PRO, 8GB G.Skill Sniper, RocketFish Case, 2x 6950, X750 PSU, TRUE120


  18. #18
    Member ffzen's Avatar
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    Feb 2006
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    NY
    hx520 @clubit for $90 AR, 2 rebate forms

    Actually, buy.com $90 w/GCO, no rebates

  19. #19
    Member striker85's Avatar
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    Connecticut
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    Awesome. Nice find, ffzen. I'm biting the bullet and getting that hx520.
    Heatware Ebay
    Rusty:
    Gigabyte GA-MA78LM-S2H (Rev. 1.0)
    AMD Phenom II 720 (unlocked to 4 cores and oc'd to 3.3 ghz)
    4GB Generic DDR2 (oc'd to 940mhz)
    XFX HD5670
    Corsair 520W PSU

  20. #20
    Member ffzen's Avatar
    Join Date
    Feb 2006
    Location
    NY
    if you're getting it from buy.com, make sure you choose
    Free Budget shipping. Sometimes they default it to 3-5 day shipping and
    people end up paying for shipping.

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