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Is my psu frying my cpu or mobo?

so i just bought bunch of new parts but they dont seem to work together.

any help would be grealty appreciated.

here are my components

antec full size case
asrock amd 970 pro3 mobo
amd phenom II 965 BE
xfx hd 6870
kingston hyperx blu 1600 2gbx2
wd 500 gb sata hd
apevia atx cb700 psu
sony dvd burner

when put together,

i get no display and no beeps

also when i first turned on the power i smelled a faint burnt electronics smell.

thanks for any help
39 answers Last reply Best Answer
More about frying mobo
  1. "apevia atx cb700 psu"

    That is the weak link.
  2. Did u plug in the power cable to GPU card?
  3. Did anything turned ON?

    CPU cooler fan is spinning? Enter more info.
  4. yes i plugged both six pin powers to the gpu and yes the cpu fan is spinning
  5. in fact all my case fans were going and the gpu's fan too
  6. HD6870 needs 500W PSU. Those cheap ones are not suited for gaming.


    BTW, did u clean install the windows?
  7. nikorr said:
    Did anything turned ON?

    CPU cooler fan is spinning? Enter more info.



    yes i plugged both six pin powers to the gpu and yes the cpu fan is spinning all my case fans and the gpu fan are spinning too
  8. it never booted to install windows
  9. So u didn't get in the BIOS, right?
  10. correct
  11. Any led goes on on the mobo, like the RAM check?

    Can u post a picture of the set up?
  12. Are u using the top PCIE slot?
  13. Well, can u try another PSU?
  14. i took it all apart, but i can put back together if that would help.
  15. yes i am using the top pcie slot and i do have my old psu its a therlmatake 430w. do you think it has enough power?
  16. Yes,. Try it. It should boot fine, since u will not run it under the load : )
  17. Make a run outside of the PC, with only CPU+FAN + RAM + GPU and PSU with connection to the LCD to see if it starts the BIOS.

    All that installed to your mobo that is sitting just on the paper box it came in.

    It should boot in to BIOS.
  18. ok i will try that, looking at that psu it doesnt have the two six pin connectors my 6870 requires. also do you think it is possible that my cpu or mobo has been damaged by the new psu?
  19. Hardly. The PSU is not a good one. Unless it did the collateral damage, it should be fine.

    CPU is the most quality part in the PC.

    And since it is spinning, I thing it is just the PSU.
  20. Ok thank you i will test with my old psu and post back when done
  21. Fingers crossed : )
  22. ok still no display and no beeps
  23. OK, what did u do and use?
  24. i put my old psu in my case and plugged it into my mobo which is sitting on the box it came in then i put my ram in plugged in my pwrbtn header put my old 9500 gt gpu in and connected it to my tv via vga also connected my chassis speaker to its header pushed the power button and the cpu fan spins no beeps no display and then the fans just keep going but nothing else
  25. Can u reset the BIOS?
    Reset the CMOS memory the right way as is described in the motherboard manual using the clear CMOS link with the power cord unplugged.
    And when the battery is out, press the power button to discharge all the electricity from the system.
    How To Clear CMOS @ http://pcsupport.about.com/od/fixtheproblem/tp/clearcmos.htm
  26. k done
  27. still nothing
  28. Can u try the RAM in the second slot, 1 stick only.
  29. now when you say second slot is that a2 or b2
  30. tried both a2 and b2 still nothing so now ive hooked up the new terrible psu to my old system old intel core 2 duo 3.0 ghz everything is working fine
  31. Hm, than it might be the mobo. U did plug in the 8+24pin, right?
  32. yes its two four pin connectors and a 20+4
  33. this is in fact my second mobo i was having the same problems so i rma'd the mobo and cpu
  34. Do u think that the CPU could be the culprit?

    They do go bad too, but that's rare.
  35. as i said in my original post i did smell burnt electronics when i turned the power on for the first time, but if thats the case that would make two in a row. Do you think i should see if newegg will refund my psu for credit towards a better one? Which psu would you suggest? will newegg rma my cpu again? i should still be within their return period.
  36. Best answer
    I think u should go for better PSU and this one is great deal.

    CORSAIR Enthusiast Series TX650 V2 650W ATX12V v2.31/ EPS12V v2.92 80 PLUS BRONZE Certified Active PFC High Performance Power Supply

    $10 off w/ promo code EMCNCJC32, ends 7/23
    In stock. Limit 5 per customer.

    was: $119.99
    $89.99

    $69.99 after mail-in rebate card
    FREE SHIPPING

    http://www.newegg.com/Product/Product.aspx?Item=N82E16817139020
  37. About the CPU, I would do it too, once u are in it, than do it all.
  38. Do you think the mobo is fine though? I mean that the psu didnt damage it.
  39. Best answer selected by jessethompson.
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