limxrich
Member
Last Activity: 04-19-2025, 07:19 PM
Joined: 04-30-2021
Location: Antipolo
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Sapphire Nitro+ AMD Radeon RX 6600 XT - Part Identification
Ran into a short with this part. Can't figure out the correct part no. Would appreciate help! -
LENOVO LEGION NM-D562 REV 3.0 Need Hi-Res Pic
I'm trying to rebuild the UU136 (USB HUB) of this board. Important that hi-res pic comes from REv 3.0 only as UU136 has a different on Rev 1.0. Thank you.... -
Re: Lenovo Legion Y530 NM-B961 Rev 1.0 - Need hi-res image
Sorry but did not see the value of putting a hi-res picture as I was suspecting that chip was replaced with the wrong one. Marking on the burnt chip was 3T, where it should be 3H as pointed out by @Vesko356.
Thanks for replying though.... -
Re: Lenovo Legion Y530 NM-B961 Rev 1.0 - Need hi-res image
Thank you. This confirms my suspicion that chip was irresponsibly replaced!...Leave a comment:
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Lenovo Legion Y530 NM-B961 Rev 1.0 - Need hi-res image
I'm working on this board where fix has been attempted by other techs. I just want to confirm if burnt PU601 is really an RT8231B chip as I think its supposed to be a 3V5VLDO chip.... -
Re: Dell Inspiron 15 3515 - LA-L245P Component identification
Thank you for this. Bookmarked. Really helpful!...Leave a comment:
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Re: Dell Inspiron 15 3515 - LA-L245P Component identification
Thanks. Looks liek this is the right candidate. Markings are really hard to see as its probably affected by the ic heating up....Leave a comment:
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Re: Dell Inspiron 15 3515 - LA-L245P Component identification
Thanks. Anyone have other idea?Leave a comment:
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Dell Inspiron 15 3515 - LA-L245P Component identification
Hello, first time I encountered this chip. No schematics or boardview available for this model so need help.... -
Re: NM-A901 Lenovo Yoga
Thanks for the input! 5V goes in to ISL9237 which then outputs 4.6V to PR57 and drain of PQ16, but no 9V is produced for Vin (0V). Looks like replacing ISL9237 is a good option, I guess? No shorts tested for the mosfets in the line....Leave a comment:
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NM-A901 Lenovo Yoga
Hope someone can help.
Kinda confused about the power delivery of this unit. Instead of the normal 20V,, being delivered, only 5V is delivered to ADIN_1 in JP8, where the USB port board NS-A901 is connected. I used a USBC Tested connected in series, FYI.
Can someone explain how 20V or 5V is negotiated, and in this case, what circuit decides that? I was initially looking at PU3 (PMIC) but can't really understand where power is negotiated. Then looked at the SIO chip, however, how can the SIO chip negotiate if +3VALW_EC is not present. And saw that +3V_ALW is then produced...Last edited by SMDFlea; 08-24-2023, 10:45 AM. -
ASUS X512DK - Need to identify components
Hello. Need to identify the attached components for the said model.... -
Re: ASUS GL502VS - HDMI Display OK, LCD No Go
Yup, I thought it was odd too, injecting 3v there made the screen light up, but no image. Frame lock at 2.4V, LCD_EN at 2.2V...Leave a comment:
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Re: ASUS GL502VS - HDMI Display OK, LCD No Go
Injected 3V to backlight LCD_BLEN_CON_X1 and it just lights up, no image whatsoever.Leave a comment:
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ASUS GL502VS - HDMI Display OK, LCD No Go
Hello. Need some other viewpoints.
- LCD is tested OK
- LCD Flex - spare purchased and tested - no go
- HDMI Displays ok
- HPD voltage on HDMI goes high when plugged in (5v)
- HPD voltage on EDP goes high when plugged in (2.4v)
- L+3VS_LCD - 3V ok
- AC_BAT_SYS_LCD - 19V ok
- LCD_BLEN_CON - 1.4V
Would appreciate everyone's input. Thanks!... -
Re: Asus TUF Gaming FX504GM DABKLIMBAB0 - No POst, Turns OFF after a few seconds
Thank you for the suggestion. I checked all powergood signals and everything is on the right voltage (1.8V or 3.3) depending on the signal.
Any other suggestions?...Leave a comment:
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Asus TUF Gaming FX504GM DABKLIMBAB0 - No POst, Turns OFF after a few seconds
I would say this is a no fix, but want to pick the brains of the veterans here.
All voltages present, already tried several BIOS bins. All voltages present when power button is pressed. All reset signals present. Unit does not post, but turns off after around 10-12 seconds.
Some interesting details:
1. Unit toggles from 7 & 12 mA when plugged in
2. Units goes up to 1.5A when turned on (10-12 secs)
3. Current toggles between 37mA & 42mA when it turns off.
4. Unit is on continuously ON w/ all voltages present when no RAM is present....Last edited by limxrich; 12-18-2022, 02:45 AM. -
Acer Swift X SFX14-41G LA-L202P Rev 2.0
Need BV Schematics for this model Thank you! -
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ASUS X560UD - shuts off after 3-5 secs whenever RAM is present
Working on an X560UD. Unit turns off whenever RAM is present. Tried multiple known good memory sticks, but still, unit shuts off after 3-5 secs. When RAM is removed, unit stays on, but of course, do not POST.
Happens on any o the two slots, 1.2V present.
Any clues?
No activity results to display
Leave a comment: