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TOSHIBA SATELLITE Radius 12 P20W-C-10D BIOS Password removal
Hi guys,
Need your help with clearing out BIOS Password.
Laptop model: TOSHIBA SATELLITE Radius 12 P20W-C-10D
P/N: PSPVVE-00300WTE
SN: YF069816S
Motherboard: H000095820
Thanks in advance!...Last edited by s_henya; 04-25-2024, 01:03 PM.
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Evga Geforce GTX750TI beeping
Hi got this cute GPU,
PC is powering on, GPU is getting power ~40deg
Cmos speaker is beeping.
other cards working fine on this build
tested the card on 2 other builds- same beep
visual inspection didn’t reveal any issues or missing components.
any test points?...
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Bump
can anyone please share bios file for secondary bios 1mb?
i uploaded my bios in the previous message.
Thank you 🙏
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Tried the BIOS provided but no change, board is having power for few seconds but not posting.
i just saw this board has one more bios chip.
from the sizes it seems different.
can someone please advise, which one is the main and what is the data stored on the second chip?...
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Hi Need BIOS please :-)
Lenovo Yoga C930-13IKB
Board Name : EYG70 rev 1.1 NM-B741
SN :PF1GMYRV
Problem : Power Button Led blinking and power off after few seconds​...
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Re: MSI MS-7D48 VER 2.2 BIOS POST loop
Already verified with a new MB. It's the MB.
I have strong feelings either the PCH or the bios are faulty…
Bios is more likely since this Board was working for 8months only..
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MSI MS-7D48 VER 2.2 BIOS POST loop
Hi all,
Trying to understand weird fault on this Mobo.
(board still under warranty so i try to keep the debugging without chip removal)
Boards power ups, EZ Debug LED indicating CPU DRAM, VGA in order.
Boot LED doesn't start and then restart in loop mode.
For a second i can feel it's trying to post (screen indication led is on) but it then restarts.
If i replace RAM i get RAM change notification and press F1 to enter setup.
Keyboard doesn't seem to respond and after 1 second it restarts.
I tried disconnect power, long press...
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Re: HP Envy x360 15-cp0012AU battery issue
i let the new battery drain while connected to the MB without charger and the laptop agrees to power up with it.
So no harm was done.
new battery is being identified orange light is one, battery charge is 0% but it's not increasing.
Can you suggest some tests? maybe around the charger ic BQ25708Last edited by s_henya; 06-06-2023, 09:54 AM.
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Re: Lenovo ideapad 5 - identify shorted chip
Update:
Since i was clueless to what else is possible,
I raised the voltage from 0.8v to 1-1.1v and felt bit of warmth off the SIO.
Since i don't own a SIO programing tool, i decided to return the laptop back to the owner unfixed :-(
Appreciate all of the support and advices given on this post :-)
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HP Envy x360 15-cp0012AU battery issue
Hi i got this nice laptop in for battery replacement TS.
Owner ordered a replacement battery off Ebay (seller ratings were legit though :-)
Charger is a also new non original HP blue pin but does own the resistor between (+) to middle pin.
+ 19.76v
0.845v on brown wire
Original battery (LK03XL) was bloated and was showing 100% but didn't hold any charge,
Pin1-2 (+) terminal 0.056v.
Pin3: 2.968v
Pin4 2.968v
Pin5: 3.23v
Pin 6-8: GND
Replacement battery arrived charged and laptop powered up.
But didn't agree...Last edited by s_henya; 06-05-2023, 09:54 PM.
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Re: Lenovo ideapad 5 - identify shorted chip
Should i check on the coils or at the input of the mosfets?...
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Re: Lenovo ideapad 5 - identify shorted chip
I injected 1v on the LDO line. Current consumption was only 0.3amps.
I couldn’t feel anything warm on the board.
(Unfortunately i dont own a thermal camera) but i touched the SIO and didn’t feel anything abnormal.
Due to the risks of burning the CPU/GPU I can’t raise more than 1v right?
So i guess this is game over?
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Re: Lenovo ideapad 5 - identify shorted chip
Seems like indeed 2 different shorts..
Will attempt voltage injection and hope it's only a cap.
Hope it's not the SIO or a mosfet going to the cpu or gpu.
Will update tomorrow!
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Re: Lenovo ideapad 5 - identify shorted chip
@mon2:
1. Removed cap from LDO line-> resistance is 1.3ohm to GND
2. Removed coil from LX line-> resistance is 1.5ohm on the pad to other side of the IC
3. I have. which point do you recommend me to inject the 1v?
4. Confirmed, it is my 1st time to replace QFN chip, but plenty of experience with soldering and reflow. so this one went smoother than expected. Alex is indeed very professional at his work :-)
@mcplslg123 i agree i should have tested, but i was hoping for an easy repair- i really...Last edited by s_henya; 05-19-2023, 10:30 AM.
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Re: Lenovo ideapad 5 - identify shorted chip
Pin13: 1.7ohm
Pin15,16: 2ohm
that's probably bad :-(...
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Re: Lenovo ideapad 5 - identify shorted chip
Update:
So i finally got the replacement IC from china.
Unfortunately i have the same symptom- overheating ic
i collected measurements
Pin1: 0.43v
Pin 2,3,4: 12.25v
Pin5: 0.015v
Pin6: 0v
Pin7: 0v
Pin8: 12.23v
Pin9: 0.296v
Pin10: 0.04v
Pin11: 0.14v
Pin12: 0.017v
Pin13: 0.373v
Pin14: 0v
Pin15,16: 0.014v
any suggestions?
MOD EDIT: Link to schematic and boardview -> [url]https://www.badcaps.net/forum/showthread.php?p=1240393[/url]...Last edited by SMDFlea; 05-19-2023, 05:28 AM.
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Re: Lenovo YOGA 920-13IKB not powering on
I tested the coils next to the IC i mentioned.
they aren't shorted 8k-22kohm....
any ideas where can i order such a ic?
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