Im trying to find a replacement chip for a laptop motherboard. I cant find it anywhere online looking up the model.
Source To Buy Motherboard Chip
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Post a pic of the bottom side of this part. If this part has only 2 solder legs, it is a tantalum capacitor @ 15 mF (15 microfarads). Purchase the highest voltage rated part for this body size and you should be ok. Do you have any reference on the logic board or voltage rail used for this component ? -
Post a pic of the bottom side of this part. If this part has only 2 solder legs, it is a tantalum capacitor @ 15 mF (15 microfarads). Purchase the highest voltage rated part for this body size and you should be ok. Do you have any reference on the logic board or voltage rail used for this component ?Comment
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Looks like aluminum polymer, not tantalum. Also that's 15 µF not mF.OpenBoardView — https://github.com/OpenBoardView/OpenBoardViewComment
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Yeah sounds right. Im just wondering how i can find this one or a similar one. I bought a 15uf tantalum one but the resistance is different so i didnt want to mess anytning up but putting yhat on the board.Comment
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by acedogblastThis is a guide that I am writing for helping others to replace their MEC1503 EC chip if it breaks (or to get around an inconvenient prompt to the BIOS). This forum has been extremely helpful to me so I would like to contribute to help others. I will tell you right now that this task is very difficult to do. You MUST have experience and tools to do precision micro-soldering, BGA reballing, trace repair, and general laptop repair skills.
There are some specialty tools needed to do this task. The replacement MEC1503 chips can be acquired from Aliexpress. Do not buy the bare chips as... -
by Mess
Hi beginner here, so I'm not sure of I've done this right 😅 trying to diagnose my laptop's motherboard (dax31mb1aa0 rev a). I don't quite know how to read the schematic, so I'm attaching the pictures of the motherboard and the measurements.
I was attempting to measure resistance to GND on inductors. I disconnected motherboard and used "continuity testing" setting on my multimeter. I put black probe to Ground & red probe on an inductor. Did I measure this right? Am I correct to think that 0.3 ohm measurement indicates a short circuit? Thank you for your help!... -
by pokerI can't find the datasheet for this chip's schematic. Can someone with information please answer?...
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by cappernicusLaptop model: Sp513-54n-74V2
Testing power rails (separated by chip) reveals:
19V_DCBATOUT - (active)
5V_AUX_S5 - (active)
5V_S5 - (active)
3D3V_AUX_S5 - (active)
3D3V_S5 27Ω - (good) - enabled by Nuvoton chip
1D8V_VCCIN_AUX - (good) - enabled by 1D8V_S5 PG signal -- (dependent on 3D3V_S5)
1D8V_S5 41Ω - (good) - enabled by 3D3V_S5 PG signal
1D05V_VNN_BYPASS - (good) - enabled by 1D8V_VCCIN_AUX PG signal... -
by Stanley1843Hello to everyone.
My W26361-W84-X-02 motherboard starts but don't show image (no logo screen neither bios). Because, I have two of them I desoldered the bios chip from the no working motherboard and I soldered it to the working motherboard and the motherboard works OK, so the bios firmware isn't the problem. Below I took some measurements from the no working motherboard when is power on. Also, I replaced the RAM and didn't work again (maybe some pins from the RAM slot don't have the right voltage?). I replaced and the bios battery, and I made reset on the bios and again the problem didn't...1 Photo - Loading...
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