Installed my 4850hd last night, huge problem

Discussion in 'Videocards - AMD Radeon' started by themagicaljew, Jul 2, 2008.

  1. themagicaljew

    themagicaljew New Member

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    GPU:
    Asus Radeon 4850 HD
    Hey guys

    I just put my 4850hd in last night and was having issues with it overheating. I read that I should install the Asus fan controller to adjust the fan speed and that fixed my overheating problem. I rebooted the computer and now my ethernet port says its "disconnected" and no cable is found. Am I having power issues with my PSU? It seems like when I reseat the video card the ethernet port comes back until I reboot. System specs below, psu is about 2-3 years old.

    AMD 6000+
    Asus M2N-E
    Asus Radeon 4850HD
    2 Gigs of G Skill Ram
    Thermaltake 420w psu
    X-fi extreme music sound card
     
  2. Imperious

    Imperious Master Guru

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    GPU:
    Gainward Phoenix GTX1070
    I would say 420watts is a bit on the low side for a HD4850.
    Try monitoring the +12v, +5v, +3.3v, and The Cpu Vcore voltage whilst under load, if they are well below the proper voltages then Your psu is not good enough.
     
  3. themagicaljew

    themagicaljew New Member

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    GPU:
    Asus Radeon 4850 HD
  4. Fahim

    Fahim Member Guru

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    GPU:
    XFX RADEON HD 5850 1GB Bl
    You need to upgrade your PSU. Go for a better one. At least 500-600W.
     

  5. Gripen90

    Gripen90 Master Guru

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    GPU:
    2x RTX 2080Ti SLi
    I'm using a Corsair VX450 450watt. Wattage isn't everything, look at what amps it can deliver it's much much more important.

    Are you sure it isn't a software problem ? if you disable the Asus program is your Ethernet then up and running ? I'd suggest you update those drivers first before buying a new PSU.
     
  6. Dustpuppy

    Dustpuppy Ancient Guru

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    GPU:
    integrated - fffffffuuuuu
    In this case I disagree

    His PSU is 65%+ that means he gets 273W max on that power supply. That's not enough. Your PSU is 82% efficiency at 100% load.

    To put this in perspective he would need a 530W power supply to achieve the same wattage as a 420W PSU with your efficiency. Or 570W to achieve as much wattage as your PSU puts out.

    ETA: The system in the guru3d review requires 269W under load. However, the X6800 extreme is a 75W processor, the Athlon 6000+ is a 125W processor this puts him well over his PSU's limit.
     
    Last edited: Jul 3, 2008
  7. Lyla

    Lyla Banned

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    GPU:
    4850
    Sounds like software clash to me.
     
  8. FNK

    FNK Ancient Guru

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    GPU:
    XFX GTR 480 XXX
    No, a 500watt PSU will convert 500watt no mater if its 65% or 80+%.
    A 500w psu with 65% efficiency will need 675w to do the right job.
    500w at 80% will require 600w.

    Here's a link HERE

    Your problem I related with your PSU indeed. I had the same as yours, but I changed it for this Zalman because the Amperage was just insufficient.
    A card such as the 4850 will require a lot more amperage than older card.
    Since ATX 1.0 to ATX 2.0+, the requirement in term of voltage are somewhat lessened but Amperage are the big factor for a solid build!
     
    Last edited: Jul 3, 2008
  9. king-dubs

    king-dubs Ancient Guru

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    GPU:
    TITAN X (Pascal) + X34
    Also guys, his is a Thermaltake 430W with only 18 Amps on the +12V rail. The HD 4850 needs at LEAST 26 Amps.
     
  10. Dustpuppy

    Dustpuppy Ancient Guru

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    GPU:
    integrated - fffffffuuuuu

    :p I stand corrected.
     

  11. Bold Eagle

    Bold Eagle Active Member

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    GPU:
    Sapphire 4850
    The 4850 do run hot at the moment as many have observed but there is a nice little fix just here, no hardware modding:

    http://forums.guru3d.com/showthread.php?p=2751569#post2751569

    So once you have your PSU sorted you may want to goto this link and have a look at Bretware's solution, about 1/2 down the page, works a charm.
     

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