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Last edited by speedypro; 07-17-2013, 08:12 AM.Full-time computer repair tech (10am - 6pm) and full-time, (8am - 11pm), Ruby on Rails Developer
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Re: Asus X53U: Instantly Cuts Off
remove pr217 and retest
still short?
find +APU_CORE_NB
short gone, proceed - check PC 223
if pc223 ok, follow that lineLast edited by fddizon; 07-17-2013, 12:54 PM.Comment
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Re: Asus X53U: Instantly Cuts Off
When you say pin 2 is short, are you saying short= zero ohms?
If there are more than 1 ohm, then 99 per cent sure the circuit is good.
These low ohms is due to the high amperage the circuit eats.Comment
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Last edited by speedypro; 07-19-2013, 05:14 AM.Full-time computer repair tech (10am - 6pm) and full-time, (8am - 11pm), Ruby on Rails DeveloperComment
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Re: Asus X53U: Instantly Cuts Off
To partially wrap things up, I have removed the CPU, since that is the APU. On removing and testing the + side of the cap (PC218) or PL202 to ground, there is no more sort so it's clear that a reball of the CPU is needed. I'll confirm within two weeks as we need the EME450GBB22GV reballing stencil from e-best.
When I say short, I mean setting the multimeter to diode or continuous; like testing a fuse.
Many thanks for all the effort and support guys.Attached FilesLast edited by speedypro; 07-19-2013, 10:25 AM.Full-time computer repair tech (10am - 6pm) and full-time, (8am - 11pm), Ruby on Rails DeveloperComment
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Re: Asus X53U: Instantly Cuts Off
You must set the multimeter to ohms, then probably you can read 4 or more ohms, what is perfectly right.When I say short, I mean setting the multimeter to diode or continuous; like testing a fuse.Comment
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Re: Asus X53U: Instantly Cuts Off
I did set it to ohms setting and it read 0.2 ohms. I haven't tested in ohms setting while cpu chip was off. I'll see what it reads tomorrow at work.Full-time computer repair tech (10am - 6pm) and full-time, (8am - 11pm), Ruby on Rails DeveloperComment
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Re: Asus X53U: Instantly Cuts Off
While cpu chip is still off, all coils now have high values in Ω so it's perfectly clear that the cpu was the culprit. I'll update when I receive the stencil for the reball.Full-time computer repair tech (10am - 6pm) and full-time, (8am - 11pm), Ruby on Rails DeveloperComment
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Re: Asus X53U: Instantly Cuts Off
Measure all caps on top of the APU chip before attempting to reball it, the chip could be dead. If any read short (under 1 ohm), the chip is busted.
I used to have one of those APUs on my keychain until it broke and fell off - it was dead short. Came from a Sony Vaio that took a very heavy fall, and there was no plastic foil between the sides of the chip. Due to the impact, the heatsink hit the caps and shorted them out while the laptop was running, and killed the chip.Last edited by Th3_uN1Qu3; 07-21-2013, 08:19 AM.A working TV? How boring!Originally posted by PeteS in CAComment
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Re: Asus X53U: Instantly Cuts Off
Sorry for the late update. CPU reballed did the trick. Laptop now works.Full-time computer repair tech (10am - 6pm) and full-time, (8am - 11pm), Ruby on Rails DeveloperComment
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Re: Asus X53U: Instantly Cuts Off
congratulations speedypro!!!Comment
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Hello,
I have a problem with an Asus X553MA motherboard. Sometimes the system works fine, but other times the CPU voltage drops to 0V. In most cases, the laptop reboots after a few seconds due to the voltage drop.
Occasionally, it shows the ASUS logo or boots into the BIOS. Sometimes it can stay in the BIOS for hours without issue.
I checked the board with a thermal camera, but I couldn't find any overheating or leaking capacitors.
Unfortunately, I don’t have access to the schematic.
It seems to me that when I bend the board, something changes.
Could this... -
Hi everyone,
I'm having a serious issue with my ASUS Zephyrus GA401I (4 years old, worked perfectly until recently). The system is lagging heavily, even in the BIOS, and is charging extremely slowly (a few percent in hours), making it nearly unusable. I suspect a motherboard or power delivery issue.
Symptoms:- Severe lag across the system, including BIOS navigation.
- Slow boot times and unresponsive performance in Windows.
- Battery charges very slowly (e.g., ~5% in 2–3 hours).
- No error messages or BSODs, just extreme sluggishness.
What I've Tried:- Replaced
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Asus Vivobook X515JA Laptop
Issue :
Upon turning laptop ON, screen lights up - stays black & about 30+ minutes later ASUS logo is shown & boots to windows, then laptop works fine.
Tried :
Cleaned inside for dust, applied fresh thermal paste. No Change!
Removed keyboard, Trackpad, fingerprint sensor. No Change!
Removed Internal SSD. No Change!
Updated BIOS to latest version. No Change!
Removed battery and pressing power button for 1 minute. No Change!
Weird Part :
Upon turning laptop ON, screen lights up - stays black,
I... -
Hey guys, I got this model which stays black screen but CPU heats up. All voltages on board seems oK.
Perhaps BIOS issue?
Brand: Asus
Model: F1502Z
SN: R4N0CV11S622169
Board: X1403ZA 2.2
I have flashed this BIOS for test purposes and it lights up the ASUS but blank SN. https://www.badcaps.net/forum/troubl...21#post3593121
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Hello,
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So I did some Googling to see what the potential culprits are. It varies from bad protection diodes, bad...10-18-2025, 05:06 PM
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