Need help with figuring out a capacitor on Quadro 5000M from Dell M6500

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • remdale
    New Member
    • Feb 2024
    • 8
    • Ukraine

    #1

    Need help with figuring out a capacitor on Quadro 5000M from Dell M6500

    I have a rear video card Nvidia Quadro 5000M, but I broke a small SMD 0402 capacitor on the front side of the card. It's the 2nd capacitor just down the U1 inscription in the left bottom corner of the card. Would anyone having this card please help me measure the capacitance of it? It would require a bit of soldering.
    To those interested in this card: I'm working on replicating it, so you might become interested in buying it from me after I finish. I'm also planning on changing its shape to fit some other laptops.

    Click image for larger version

Name:	LZWXQWj.jpg
Views:	558
Size:	115.0 KB
ID:	3228704
  • remdale
    New Member
    • Feb 2024
    • 8
    • Ukraine

    #2
    The same capacitor can also be found on GTX 580M, it is attached to the pin 7 of the same MP86963 on the DRAM power rail. The capacitance is 1nF as I suspected it to be. Interestingly, the same chips are also used on the GPU power phases, but no capacitors are used there.

    Comment

    Related Topics

    Collapse

    • Lapsmith
      Fried capacitor on Dell-5520. Guilty as charged.
      by Lapsmith
      While installing new SSD's in my new to me Dell 5520 laptop, I dropped a screw which sparked and fried a capacitor. Yes, I know I should have disconnecte the battery first Doh!😡. The laptop runs fine, but I want to replace the capacitor asap. I ordered and received the replacement (10uF, 25V 0603). Since I also managed to burn up one of the pads it was soldered to, my main question is whether it is okay to solder this capacitor on top of another capacitor (same size, same function in circuit). Specifically, PC4428 is bad and no way to easily solder to the board. I would like to solder it piggy...
      07-06-2025, 11:08 PM
    • Bowline
      Dell E6400 PT434 type Battery Charging Stuck at 1%. Battery Pinouts?
      by Bowline
      My question pertains to understanding the control circuity inside a Dell PT434 type battery used in Dell E6400, E6410 and other Dell notebooks?

      Does anyone have a circuit diagram for the inside of a Dell PT434 battery and/or a description of how the control lines work to control this battery?

      My reason for asking is I have a battery which I cannot get to charge beyond 1% in a Dell E6410 or E6400.
      The LED bar graph charge indicator on the battery shows one LED lighted when the info button is pressed.
      I have tried multiple different Dell power adapters. My Dell...
      06-11-2025, 10:13 AM
    • Document Archive
      DELL Precision M6500 Laptop Schematic
      by Document Archive
      DELL Precision M6500 Laptop Schematic
      XM2 Motherboard...
      10-31-2024, 02:22 PM
    • Document Archive
      DELL Precision M6500 Laptop Schematic
      by Document Archive
      DELL Precision M6500 Laptop Schematic...
      10-04-2024, 12:20 PM
    • master3112
      Dell Inspiron 5590 Board 18778-1 no charging, charging not possible
      by master3112
      I would like to share my experience about charging issues with Dell power supplies with the tech community. I am working on a Dell Inspiron 5590, Mainboard 18778-1 with charging problems. The device can be switched on and works so far, only the message appears at startup:

      Alert! The AC power adapter wattage and Type cannot be determined. The battery may not change. The System will adjust the performace to match the power available.

      The power supply unit is not recognized in the Bios and the charging process is set to "idle". I use original Dell battery, type...
      07-29-2025, 01:55 PM
    • Loading...
    • No more items.
    Working...