1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

CPU Pc failing to power up properly

Discussion in 'Tech Support' started by Leesy1, 4 Jul 2015.

  1. Leesy1

    Leesy1 What's a Dremel?

    Joined:
    6 Nov 2009
    Posts:
    97
    Likes Received:
    1
    Hey all. I purchased a MSI 980 ti and received it yesterday. I have just put it into my pc and hooked up the 2*8pin power connectors. (It has replaced my 680 evga card). On power up everything powers on for 2 seconds and then turns off.... The worst part is I have put my 680 back and now that does the same thing

    There is a motherboard power led which is green showing it has power. Then there is a Cpu led on the board (Asus p8z77-v pro). This briefly lights up red when the power turns on for 2 seconds.

    I'm very careful when putting parts into my pc. I use an anti static band etc. The only thing that happened was a drop of sweat (gross I know) fell onto the motherboard. I used a small towel to dab it off. (All power was off when I was doing this). Surely that couldn't of busted the board or cpu?

    Any ideas would be great,

    Thank you, Lee
     
  2. modd1uk

    modd1uk Multimodder

    Joined:
    4 Sep 2006
    Posts:
    3,474
    Likes Received:
    375
    What psu do you have? MAke sure the GPU is seated correctly, if in doubt remove it and reinstall it.
     
  3. Leesy1

    Leesy1 What's a Dremel?

    Joined:
    6 Nov 2009
    Posts:
    97
    Likes Received:
    1
    I have had two gpus in there. They both power up for 2/3 seconds along with the corsair cpu cooler. There deffo seated correctly.

    I have a corsair 850 hx or ax. One of them :).
     
  4. LennyRhys

    LennyRhys Oink!

    Joined:
    16 May 2011
    Posts:
    6,081
    Likes Received:
    542
    I've had this symptom twice in the past, and there have been two reasons for it:

    1) something is causing a short on the motherboard (sweat could do it, seriously!)

    2) the CPU is dead

    I hope that it's 1), which is relatively easy to remedy. Have you tried the age-old solution of removing all ram modules except just one? And what about removing the MB battery to reset CMOS?
     
  5. TheMadDutchDude

    TheMadDutchDude The Flying Dutchman

    Joined:
    23 Aug 2013
    Posts:
    4,739
    Likes Received:
    522
    It could also be an incompatibility with the GPU and the motherboard.

    The CPU dying is incredibly unlikely, they are genuinely extremely difficult to break. Trust me, they aren't that fragile.

    Can you put your old 680 back in to see if the rig boots? Have you tried using another PCI-E lane?
     
  6. Leesy1

    Leesy1 What's a Dremel?

    Joined:
    6 Nov 2009
    Posts:
    97
    Likes Received:
    1
    I'll look into the ram/cmos Lenny.

    I have put the 680 back in and have the same problem. I'm leaning towards motherboard or cpu issue. I don't think the gpu is incompatible as I had a 980 work in it last Xmas but decided to return it and wait for the Ti or equivilent. I had to upgrade the bios. It all worked fine.

    I really am beginning to think that bit of sweat has buggered it which is crazy.
     
  7. Teelzebub

    Teelzebub Up yours GOD,Whats best served cold

    Joined:
    27 Nov 2009
    Posts:
    15,796
    Likes Received:
    4,484
    I would take it all out of the case and place on a cardboard box and see if it will boot up outside of the case, if not then likely the mobo
     
  8. Blogins

    Blogins Panda have Guns

    Joined:
    3 Aug 2010
    Posts:
    4,883
    Likes Received:
    267
    Try a different power connection from the PSU to the GPU for starters. In my experience the AX850 is trash. Been through three RMA/Replacements with mine and it looks like a fourth is on the horizon!
     
  9. Leesy1

    Leesy1 What's a Dremel?

    Joined:
    6 Nov 2009
    Posts:
    97
    Likes Received:
    1
    I took the CMOS battery out and put it back in and no luck. In fact it won't even power on at all now. I do have a Corsair AX850 Bloggins. I think i'll ring Scan tomorrow as it's one of there systems. It's out of warranty though. According to there site I can pay to get it fixed though.
     
  10. Blogins

    Blogins Panda have Guns

    Joined:
    3 Aug 2010
    Posts:
    4,883
    Likes Received:
    267
    The AX units have a 7 year warranty so I don't think SCAN will be out of pocket getting this replaced!

    Plead to their better nature! :thumb:

    My faulty AX units had the same sort of problems until they refused to turn on ever again.
     
  11. Leesy1

    Leesy1 What's a Dremel?

    Joined:
    6 Nov 2009
    Posts:
    97
    Likes Received:
    1
    Ah, i'll mention it to them. I'll see what they say tomorrow :).

    Thank you all for all the help .
     
  12. LennyRhys

    LennyRhys Oink!

    Joined:
    16 May 2011
    Posts:
    6,081
    Likes Received:
    542
    No probs = that's what BT is for! :thumb:
     

Share This Page