I tried to Trace the +3VALW all remove the jumper connections that flows the +3VALW line but same got 70 ohms I already remocve the PJ401 from the PL402 coil. Hope some can guide me what to check next.. home my cpu is not dead or pch maybe?
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Re: +3VALW low resistance what would be the possible damge
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Re: +3VALW low resistance what would be the possible damge
also my uc7 bios chip pin 8 has 33 ohms?Comment
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Re: +3VALW low resistance what would be the possible damge
sorry its a FH50P LA-H901P REV 1AComment
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Re: +3VALW low resistance what would be the possible damge
kalilinux25, It may be a possibility that the CPU is damaged because the +3VALW line enters the CPU and the bios is fed with 1.8v, possibly you also have a short circuit in the 1.8v line.
you separated the line +3VALW from +3VALW. can you measure with respect to mass the +3VALWP line, what value does your multimeter mark in diode mode?Comment
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Re: +3VALW low resistance what would be the possible damge
diode mode 0
Thanks for the help the pch is already dead confirm after removing the pch chip all shorts gone,
Ive learned that if you test the pin8 of the Bio chip it can be easly conclude that shorted pch , great experience.Comment
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Re: +3VALW low resistance what would be the possible damge
no need to remoeve chip. inject voltage and u will see hotspot on side of pch/pour IPA on it/Comment
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Hi guys, i was wondering, i've got 9Ohms on Vmem, one of the mosfet was shortet to ground, so i've desoldered hi and low mosfets nad still low res, then i removed all of the memory chips, and the resistance is still low, so did you had maybe a card with that low res on memories, and the card was working fine ?
Removed the U1866Q and still without result, i dont have thermal cam so can't see where is hot spot when incjeting voltage.
The resistance on core is ok 0.1Ohm ((Power 0.8V when on)
Resistance on 12V 4K ohms (Power present when on)
Resistance on 12V PEX 4K ohms... -
Hi, I'm Daniel, and I'm new to the world of repairing motherboards.
I would like to create a table, or more likely a guideline about the voltage rails and their possible resistance rail.
I know that the motherboard design has a very big depend on the rail's resistance, but I would like to know what is the smallest value for a rail that can be acceptable. For example, I heard that some new gaming motherboards can have 0,5 Ohm resistance on the GPU rail, but on an older type, it could be a sign of a shorted GPU rail.
So, I generated a table with AI so I can... -
Hello everyone, i have this old laptop and wanted to repair it, when i press the power button, here are some measures i took below, Hope someone can help me, thanks.
B+ - 13.6v (Don't know if its good)
3.3valw - ok
5valw - ok
EC_RSMRST# - ok (3.3v)
PBTN_OUT# - ok (3.3v)
SIO_SLP_S0# - ok (3.3v)
CPU_DETECT# - ok (0V)
LID_SW# - ok (3.3v)
ON/OFFBTN# - ok (3.3v)
EC_ON - ok (3.3v)
ACIN - ok (3.6v)
65W/90W# - ok (3.3v)
PCH_PWR_EN - ok (3.3v)
ACIN_65W - ok (3.3v)
PBTN_OUT# - ok (3.3v)
SIO_SLP_S3#,...10-20-2024, 04:20 AM -
I have Asus FA506 ( board DA0BKXMB8D0 Rev: D). Can you please roughly indicate what the lowest resistance I should measure on a coil? I know that a low resistance is allowed on coils in CPU or graphic circuits but can you provide acceptable values of resistance?
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Hello everyone, I have a 645 G9 here with a Ryzen 5 PRO 5675U.
This board has a blown inductor component above the driver chip to the CPU coil, and I am wondering whether the CPU is shorted/dead.
Could anyone please measure the resistance to ground on the leftmost coil/inductor to the CPU?
My resistance value is 2.2 Ohms, which doesn't look good to me.
Thanks to everyone willing to give a value.
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