Hi I have a board with no display I encountered that I only have a 1.7v on the pin 8 of the bios chip . Is it normal? Hope someone can clarify it , thanks ..
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Board : DA0Z8GMB8F0 REV :F
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Board : DA0Z8GMB8F0 REV :F
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Re: is it normal to have this bios voltage?
I think that you are confusing the MAIN bios with the KBC bios.
KBC bios serves a different purpose with its firmware and services your keyboard, etc.
The bios in the schematic is a 3v3 device but you are measuring a different bios on the logic board.
The main bios may be a 1v8 device as you have measured and this is ok.
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Hi, I have an MSI PRO B660M-G DDR4 board with damaged BIOS and i need a bios dump from a real board, along with MAC, UUID and Serial Number info (eg. a BIOS screenshot and pictures from the board stickers).
I need to reconstruct the bios on my board, based on another bios image form a real board - meaning a bios image containing MAC address, UUID and Serial number. A stock BIOS is not suffiecient, as it is impossible to discover where the MAC, UUID and SerialNumber are stored. Tried with a similar board, but there are too much differences, and the stock BIOS is missing a lot of...11-17-2023, 10:56 AM -
Hi,
Have a Macbook A2179 with liquid damage. Customer showed it some shop which has done an ultrasonic cleaning of the board.
The board pulls 0V but doesnt turn on. No Fan SPIN. NOT IN DFU.
I checked the Power Sequences below and found this -
Once a valid external power source (Charger or battery) is connected, the following rails will come online.
PPBUS_G3H: Normal voltage is ~12.6v on the charger with the battery disconnected. Produced from the ISL9240 (U7000, which uses PPDCIN_G3H as its VIN.
PP3v3_G3H_RTC: Normal voltage is ~3.3v. Produced... -
Vizio e601i-A3 - Has Sound and Display, But No Backlight - Bad Power Supply Board or Bad LED Bulbs ?I was given this TV from my great uncle. He said it just wouldn't turn on one day out of nowhere, replaced the TV, and gave it to me to possibly fix and use for myself.
Upon bringing it home and plugging it up, it showed a standby light.
I powered it on and without a flashlight, the display showed the "V" but the lighting is very dim, but visible.
The screen seems to blackout and stay black, but with a flashlight I can see the display.
With my Playstation 4 connected via HDMI, and running a game I can hear sound.
Assuming... -
Hello friends, I've got a nice toy to play with - it is an HP RP7800 All-in-one POS system. I got it for free and it has one problem - it turns on very rarely, and just for a few seconds. After that it dies and doesn't come on if I don't leave it unplugged for at least 2 hours. I've repaired motherboards before, this is not my first one, but problem with these types of faults is that everything you check on the board will usually be fine. This is the case for me here.
I dissassembled it completely, and got my hands on the motherboard. Model No. is PIQ67H/Higgins 11047-I 48.3GD02.011.... -
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