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Is my psu not powerful enough?

Hey guys been building a new pc. Rookie at this. Everything's up and running for a short while then the pc dies. Fans stay on, leds up keyboard dies monitors dies. Im running an 8core amd fx chip, rx480 8gb graphics. 970a krait motherboard and a 700w coolermaster psu. I've ordered a 1000w psu. Should fix this issue right? I've had the pc booted to the desktop before it seems the power drops out. Surely has to be a lack luster psu yea?
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  1. Don't exactly know what your problem is but I can tell you a 700watt PSU is most definitely enough for that setup.
  2. 1| List your specs as:
    CPU:
    Motherboard:
    Ram:
    SSD/HDD:
    GPU:
    PSU:
    Chassis:
    OS:

    2| If this has been built by you, have you made sure your CPU socket pins aren't bent/damaged?

    3| Merely ordering the highest wattage PSU doesn't make it alright. There are varying degrees of quality and units from respective brands. Which 1KW unit are you looking at?

    If the PC reboots abruptly when a load is applied to the system, it's an indication that the PSU is failing at it's duty.
  3. Krait 970a motherboard
    Amd strix gaming radeon rx 480
    16gb ram 2x 8gb sticks
    B700 ver 2 psu coolermaster
    Amd fx 8350 8 core 4.2ghz cpu

    The pc will boot to the desktop I can option settings on my computer and both cpu and ram are identified as working / correct. Motherboard settings state this too.

    Ive purchased a. Aerocool 1000w Modular 80 Plus Bronze PSU. Feels like a power issue with the USB dying and out put dying. Can't help but feel like bad psu?
    The graphics cpu and case fans all still spin. Monitor flicks to sleep and keyboard and mouse die. Hard power off is the only option at that point.
  4. THe problem is not wattage related.
    If anything the problem is that yoru PSUs are low quality junk, and coolermaster was bad but aerocool is much worse; serriosuly return the aerocool, dont install it in your PC or you actually risk frying your computer parts.

    A poor quality PSU is going to have trouble with overlcocks and 125w tdp cpu's like the AMD one you have.

    I would also look at thermal issues, could be that the CPU warms up and the the motherboard kills power to save your cpu/board.
  5. So you went from a mediocre quality psu to a larger but poorer quality one. A good quality 550w psu would be plenty for your specs. A poor quality unit can have stability issues even if its massive overkill size wise. When it comes to psus quantity is not better than quality.
  6. I've monitored the cpu through motherboard diagnostics on boot and is running at a steady 23c. Doesn't spike or anything. What psu would be recommended? At the end of my rope with this already aha
  7. Quote:
    AeroCool V12XT 1000W - Highest ripple and noise, worst voltage regulation

    The overall quality of this V12XT model is perhaps the worst we've seen from an "upper-class" PSU. While +3.3V and +5V drop below -4% and +12V has an average regulation/voltage drop, every rail has problems with ripple and noise. +3.3V reached about 72mV, so 22mV or 44% over specification, and +12V is way out of spec with more than 163mV - even cheap PSUs have better results than this! The efficiency is okay for an 80Plus Bronze PSU with up to 88% at 230VAC, but the ~70% result at 10% load is sub-standard.

    -AnandTech


    That build requires about 300Watts of power.
    Going from a 700W(don't know how good it is) to a worse 1000W is not going to change anything.
  8. I'd get a 520w or larger unit from(or made by) Superflower or Seasonic. Without knowing your location reccomending a psu is rather difficult.
  9. Thank-you for the feedback guys. I live in England not built a pc since college roughly 10 years ago now so a little out of my depth. Ebuyer is usually my port of call. A corsair 750-800w will be more than sufficient Im thinking? Corsair still classed as reliable yea? Aha
  10. Corsair is good, but not as good as sesonic or superflower

    Sesonic from amazon uk: https://www.amazon.co.uk/dp/B003BIEOCI/?tag=pcp0f-21
    EVGA GQ from Ebuyer: http://www.ebuyer.com/730191-evga-650-gq-modular-gold-rated-80-power-supply-210-gq-0650-v3
  11. With Corsair it depends on the model.
    My reccomendations
    http://uk.pcpartpicker.com/products/compare/NrDzK8,TgW9TW,nB3RsY,62qdnQ/
  12. I can return the 1000w so I'll have a look tonight and a shop around. Thank-you for the help guys been stressing me out more than it should aha
  13. Now just to note we can't garantee its the psu thats causing the problem. But it is a likely suspect given the symptoms.
  14. bignastyid said:
    Now just to note we can't garantee its the psu thats causing the problem. But it is a likely suspect given the symptoms.
  15. I think you guys are right. Managed to return the bad psu's and got http://www.ebuyer.com/730210-evga-750-gq-modular-gold-rated-80-power-supply-210-gq-0750-v3 coming tomorrow. Thanks again I'll post an update if anymore issues :)
  16. Best answer
    I wake up to read through this thread and see that disaster has been averted with the PSU ;) Good work you guys!

    Now as a followup to the question about a possible suspect, outside of the PSU, the next culprit might even be the motherboard.
  17. Lutfij said:
    I wake up to read through this thread and see that disaster has been averted with the PSU ;) Good work you guys!

    Now as a followup to the question about a possible suspect, outside of the PSU, the next culprit might even be the motherboard.
  18. There was a delay in delivery of my new psu today it comes tomorrow. In the meantime I've re-set and cleared the heatsink with fresh paste after cleaning it. Popped out one of the sticks of ram and tested both separate and done a hard reset of the bios. All three done still the same issue. The pc will boot to desktop for a short while then the same, monitor dead all USB dead fans still spin. Can only shut down with the PSU button power button becomes ineffective. Can test the PSU tomorrow. Would the Pc getting to desktop a motherboard registering everything not rule the mobo out? Almost feels like if not power potentially overheating (with fans spinning) but viewing in bios cpu only maxed at 40c. Don't have enough time on the desktop to install accurate temp measuring software due to issue. Fingers crossed PSU solves it tomorrow. 750w gold raited EVGA is the upgrade. Thanks again for the support with this one guys any additional is appreciated I'll keep updating the situation and can potentially upload pictures if required - Carl
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