0 Members and 2 Guests are viewing this topic.
ITEIT8987E1435-BXASC26LA
the vendor said, BXA can be replaced directly, price is 2 USD only. new chip.
do not know, the vendor said, maybe they have a document
The 8987 should be programmed from main bios when mainboard is powered on. At least on this mainboard. It initially might contain some basic code to power on mainboard. Where did you inject the 5V, because the 8987 should be connected to 3.3V ?Quanta Y11 schematic is freely available online.
I believe there is no obvious way to tell - only experience - if not your's then somebody else's who has the will to share.One indication is if the code is kept inside main bios - there would be no point to keep it there.
can not find any document, the vendor just according the model number, they are not sure it was programmed or not, I think it has program, so you just use the used chip is OK.
It is a microcontroller to be used by many manufacturers, so it is made to be universal. By pulling some pins low it enters the spi programming mode. That depends on the mainboard on which it is installed. So i suggest you buy the new chip, put it on and see what happens. In worst case you lose a few $. If you want you can buy the programmer later if needed.
why not buy preprogrammed chip?
Quote from: Rasz on July 15, 2017, 05:23:22 amwhy not buy preprogrammed chip?Because they are not available not to mention who knows what programming it needs for a specific board.
Quote from: dominicM on July 15, 2017, 09:54:04 amQuote from: Rasz on July 15, 2017, 05:23:22 amwhy not buy preprogrammed chip?Because they are not available not to mention who knows what programming it needs for a specific board. people who repair laptops do, obviouslydumps of this KBC firmware are available https://dr-bios.com/get/quanta-y11a-day11amb6e0-it8987e-ec-bios-download/29321https://www.elvikom.pl/schemat-hp-pavilion-15-quanta-y11a-y11c-day11amb6e0-t43358.htmlhttp://vlab.su/viewtopic.php?f=53&t=5916&start=760its pretty self explanatory, find someone willing to sell you programmed EC on one of the russian/polish forums