MSI NF750-G55 VRM overhaul

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  • cperry911
    New Member
    • Oct 2011
    • 3
    #1

    MSI NF750-G55 VRM overhaul

    i have a msi nf750-g55 has 4+1 phase i was overclocking and vrm mosfet blew it had a heatsink,

    nikos manufactor transitor 1 per phase p0903bdg, 2 per phase p70n02ldg. im going to replace p0903bdg with www.digikey.com IRLR7833PBFCT-ND, and replacing p70n02ldg with IRLR8256TRPBFCT-ND.
    > for the origenal specs you can find them at datasheet archives. and replacing capacitors with bigger ones to help with the higher levels of energy at overclock speeds so i figure double should work. fujitsu is manufactor fp 02He 271 16 271uf 16v 8mohm with digikey number 493-3019-ND 470uf 16v 9mohm. replace fp 02ph 821 2.5 821uf 2.5v with 565-3221-ND 1500uf 2.5v 7mohm. i have the R50 choke inductor, i need to upgrade please advise origen specs so i can pick one out thats better. thanks tell me of what you think of this overhaul and anything i need to take into consideration with replacing with better parts. thanks agian
    Tags: None
    • cperry911
      New Member
      • Oct 2011
      • 3
      #2
      Re: MSI NF750-G55 VRM overhaul

      the chokes im going to have replace is hc1-1r0 1uh 25amp run 2 in paralell per phase, the origenal ones where .5uh and 40amp. from what i understand it seems like the higher the uh the better the filter and lower the amp. has anyone every tried some thing like this.
      Please comment.

        Comment

        • cperry911
          New Member
          • Oct 2011
          • 3
          #3
          Re: MSI NF750-G55 VRM overhaul

          i really would like some advice or even thoughts on this undertaking. thanks

            Comment

            • Th3_uN1Qu3
              Believe in
              • Jul 2010
              • 6031
              • Romania
              #4
              Re: MSI NF750-G55 VRM overhaul

              Replace only the mosfets, leave the chokes alone.
              Originally posted by PeteS in CA
              Remember that by the time consequences of a short-sighted decision are experienced, the idiot who made the bad decision may have already been promoted or moved on to a better job at another company.
              A working TV? How boring!

                Comment

                • brethin
                  Badcaps Legend
                  • Dec 2008
                  • 1907
                  • USA
                  #5
                  Re: MSI NF750-G55 VRM overhaul

                  If it aint broke dont fix it. Agree with T U

                    Comment

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