Can I Swap a 600 Watt PSU for This New Techfast 3080 R5 5600X Build Where the 750 watt PSU Appears Dead?

grang on 22/03/2022 - 22:26

https://www.ozbargain.com.au/node/674093

Hi, I bought the 3080 R5 5600x boxing day special above. Upgrades are the AIO 240mm, 1 TB SSD (all by techfast) and aftermarket, a 4 TB seagate spinner.

It was working fine - had it for about 2 months; the only issue is in power-saving mode, a few times it did not restart (I think I pressed the powersaving shortcut on the keybaord by accident (Razor - don't even know what keys I pressed)… .

Anyway, now it is dead after it died last night mid-playing (my son was on playing low-intensity Minecraft). Won't start… Tried many different ways… If I unplug it, hold in the Power button for the forced restart and plug it in again (power it up), I hear the distinct double "click" ing sound at the PSU of power on, power off… which sounds like a failsafe.

Anyways, I took out the GPU - tried it without GPU, unplugged the HDD - tried without HDD, etc… but it never started.

The PSU is a 750 Watt Gold Gigabyte PSU (apparently the old Gigabyte sparky PSU issue was fixed).

So my thoughts are, either the PSU died early, or the MB is failing… the desktop has not moved since being switched on the first time.

I have a 600 Watt Bronze PSU in another PC…. can I test this rig with it… just to power up and see if it is MB or PSU, not to run anythign intensive?

Hate to have to ship the whole box back to Adelaide.

Computing Computer Component Power Supply Unit

Comments

  • oscargamer on 22/03/2022 - 22:35
    +2

    Get techfast to fix it, for free

  • Shadowsfury on 22/03/2022 - 22:44
    +1

    Yeah that sounds too premature - better to get them to fix it

    But yes should be fine - there'll be a bit of a power spike at the beginning when starting up but not as much as playing games full load so I'd be surprised if you get close to the 600w's limit.

  • smashman42 on 22/03/2022 - 22:49

    the 600w should be fine for testing but yeah, if under warranty and not turning on, make them deal with it

  • grang on 22/03/2022 - 23:07

    Yeah… packing, mailing, waiting….
    Meh

    I took it out —- cabling of the LED fans is … terrible… really lazy wrapping of cable lengths (a neat job would be faster I am sure… Front (under glass) is fine and cables neat enough (not many)… it is behind the MB that is a mess.

    PC works fine with the 600 WATT PSU.
    I will post a few pics of the cabling on the backplate.

    My son wants to know if the 600 WATT PSU can handle Minecraft…

    I am hoping Techfast lets me simply swap out the PSU and not the whole case — I assume a mail return from WA + waitlist for them to check will be weeks.

  • grang on 23/03/2022 - 00:22

    Wiring (the braded ones are from the 600 WATT PSU - so ignore)… all the other ones are pretty stuffy
    https://files.ozbargain.com.au/upload/42547/94894/pxl_202203…

    This Birdsnest of the 3 fan LED wires is such a clump it requires a bit of pressure to close the bottom lid (MB side)
    https://files.ozbargain.com.au/upload/42547/94891/pxl_202203…

    Here is the the 750 PSU (new, presumed dead) and the one I borrowed from the replaced PC 600W.
    https://files.ozbargain.com.au/upload/42547/94892/pxl_202203…

  • grang on 23/03/2022 - 00:27

    Ah, so the the gigabyte PSU cables from the GPU doesn't fit in the GameMax PSU adaptors. The gamemax 8 pin plugs are reversable, which means I can plug the card side into the PSU. The Gigabyte does not appear reversable.

    Even though the Gamemax 600w Bronze has 2x PCI-E power ports (8 pin beach), I only have one cable from the old PC with two 8 pin plugs on it (8x and 6x+2x)… bummer.

    So the PC would start up - lights go on, but no display… I had to take the 3080 out and …er put in the other PC's GTX 960 card that only has one powerplug (6 Pin)

    That works, so I assume the single cable, split to the two 8 pin plugs on the 3080 is not enough juice and whilst the Gainward Phoenix card's LED light show goes on, it does not output an image.

    Anyways, all works. so almost certain the Gigabyte PSU 750 —- GOLD no less —- is toast…

    At least with the 600 W PSU and the old 960 card, my boy can play minecraft fine… Just not the other high-end games at high FPS… the 3080 in a carboard box don't go far - apparently fortnite has a new season too so he will be bummed on the FPS drop and the 34" Dell monitor's pixel demand..

  • McOzbargainer on 12/04/2022 - 21:27

    Use warranty/acl. Techfast should fix it for you for free

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