Is the above named ic compatible with intersil 88739a if not which one is it compatible with?
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This is a list of compatible laptop motherboard information that I have been collecting for some time.
And it's still ongoing.
Every time I come across information that a board is compatible with another, I write it down.
Anyone who wants to, can continue to expand the list.
Packed in the rar, is an excel table that has additional information.
Motherboards.rar...05-31-2024, 04:34 AM -
Anyone know of a compatible replacement that has an adjustable output? The BD35230 has a fixed output of 1.0V and would be acceptable but I cannot find it anywhere. There is also the BD3523 which has an adjustable output but its also nowhere to be found. I could probably source them from alibaba but I dont have that much time and I dont want to make a huge order.
Or perhaps you know how the BD35231 can be modified to output 0.95-1.0V? The board does have empty pads for an adjustable IC but Ive only been able to make the output go up.
Thanks for any help... -
Hi everyone,
I’m trying to identify a step-down regulator marked AMCH073. It’s used on the PEX power rail of a graphics card. I can’t find any datasheet or info online.
Here’s what I’ve observed:
• It has a QFN-16 footprint, similar to NB670.
• Pins 1, 2, 15, 16 are connected together and go to the inductor, so likely SW (switch node).
• Pin 9 is connected to GND, which doesn’t match NB670 (where pin 9 is SW).
• Pin 8 also seems to be tied to the same GND plane.
• The chip only says AMCH073, no manufacturer logo or other markings.... -
Hi everyone,
I'm working on a Dell G15 5515 (Ryzen 7 5800H, RTX 3050 Ti) and recently installed a compatible 4-zone RGB keyboard and controller (for Dell G15 5510/5511/5515 models). While the keyboard functions for typing, the RGB lighting is not detected by Alienware Command Center (AWCC), which displays “No AlienFX devices found.”
What I've Tried So Far:- Reseated the cables.
- Reinstalled AWCC and AlienFX services.
- Attempted BIOS downgrade but no improvement.
- Inspected ribbon cables for damage.
- Explored the possibility of BIOS or
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I got this Gigabyte Aero RTX 4060 where it initially wouldn't get detected, after disassembly i found that U504 (12v to 5v) was corroded at pin 1 together with it's ADJ resistors, i swapped them for close enough ones (it goes to a 1.02k resistor > 340ohm then 0hm > GND), i installed a 1k and 300ohm one and got 5v properly, fans would spin fine but card still wouldn't get detected, i've measured PEX present then found out that FBVDDQ was missing entirely, analyzing further, U15 was shorted at it's VCC pin (7), at the time i didn't have another exact model but got a TPS51211 instead, i checked...07-21-2025, 05:53 PM
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