Try our new boardview, bios, & schematic search. Over 1.3 million files for download!

PowerEdge R740 coil resistance

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • lerom
    New Member
    • Oct 2020
    • 7
    • Auvhan

    #1

    PowerEdge R740 coil resistance

    Hello,

    can anyone measure the resistance on coil L12 3.3V (near USB, EMMC chip) and coil L46 1V near CPU1 ?
    thanks.
    Attached Files

    Premium supporters get full download access and other benefits.

  • Jose Luis Menéndez Rama
    New Member
    • Dec 2025
    • 3
    • Mexico

    #2
    En L46 tengo 14.5 omhs.En L72 tengo 105 omhs

    Comment

    Related Topics

    Collapse

    • Jane
      What is the lowest acceptable resistance on a coil without considering a short on PCB
      by Jane
      I have Asus FA506 ( board DA0BKXMB8D0 Rev: D). Can you please roughly indicate what the lowest resistance I should measure on a coil? I know that a low resistance is allowed on coils in CPU or graphic circuits but can you provide acceptable values of resistance?
      Thank you.
      02-27-2024, 01:42 PM
    • cind12
      GTX 1080 TI Gigabyte Aorus low resistance on vmem
      by cind12
      Hi guys, i was wondering, i've got 9Ohms on Vmem, one of the mosfet was shortet to ground, so i've desoldered hi and low mosfets nad still low res, then i removed all of the memory chips, and the resistance is still low, so did you had maybe a card with that low res on memories, and the card was working fine ?
      Removed the U1866Q and still without result, i dont have thermal cam so can't see where is hot spot when incjeting voltage.
      The resistance on core is ok 0.1Ohm ((Power 0.8V when on)
      Resistance on 12V 4K ohms (Power present when on)
      Resistance on 12V PEX 4K ohms...
      12-08-2023, 09:09 AM
    • Adilson Silva
      Dell PowerEdge T110 server that stopped working after a stress test - bios request
      by Adilson Silva
      Hello everyone,

      I'm working on a Dell PowerEdge T110 server that stopped working after a stress test. I need help recovering the VPD EEPROM (AT24C02).

      ― HISTORY ―
      I bought this server at a charity bazaar (Pequeno Cotolêngo, Brazil). I cleaned it up, installed Windows 10 LTSC, and tested it all day — heavy file transfers to 3 HDDs, driver installations, and finally added an external audio card to watch YouTube. At that point the machine shut down suddenly and never came back.

      ― SYMPTOMS ―
      • Power supply would not arm (no PS_ON signal)
      ...
      04-25-2026, 04:28 PM
    • andrew25
      Dell PowerEdge R740 bios
      by andrew25
      i have 4 Dell PowerEdge R740 servers, they all have same problem of no display on monitors. they all power up and running okay but nothing displaying on monitor, am suspecting server attack... i attached 1 bios dump and an update exe from dell website, if anybody can rebuild new bios i will really appreciate..
      mobo ID: F6MXH
      Service Tag: CSPF903...
      02-07-2024, 12:53 AM
    • Nagy Daniel
      Lowest possible resistance on laptop motherboard rail - Guide Table request
      by Nagy Daniel
      Hi, I'm Daniel, and I'm new to the world of repairing motherboards.

      I would like to create a table, or more likely a guideline about the voltage rails and their possible resistance rail.

      I know that the motherboard design has a very big depend on the rail's resistance, but I would like to know what is the smallest value for a rail that can be acceptable. For example, I heard that some new gaming motherboards can have 0,5 Ohm resistance on the GPU rail, but on an older type, it could be a sign of a shorted GPU rail.

      So, I generated a table with AI so I can...
      03-04-2025, 08:24 AM
    • Loading...
    • No more items.
    Working...