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#1
LAPTOP MOTHERBOARD SHARE SAME CHARGING IC EQUIVALENT

ISL88731C >LAPTOPMODELS(DELL INSPIRON 15 5551,INSPIRON 15 3531, DELL E6430S,DELL E6410,DELL E6230,DELL STUDIO 1737,DELL ALIENWARE M17X,DELL E5430,DELL_L501X,DELL ALIENWARE M18,X,DELL E6410,DELL E6400,D630,DELL E6430,DELL E5530,DELL E6430, DELL E6330)

BQ24735>Pegatron VA70HW MAIN_BD GDDR5

BQ24717>LAPTOP MODELLATITUDE 3540,DELL 15 3000,DELL LATITUDE E5440,LA-A491P, CEDAR/JANUS, LA-9832P

BQ24715>LA-9591, LA-9941P, LA-9262P,LATITIDE E7440,DELL 9530,DELL XPS 12 9Q33.

BQ24738>DA0U83MB6E0,HP 15-F010DX

ISL6251>LA-5812P, LA-8321P,LA-5811P,la-8341p(ISL6251A), LA-6961P, la-7451p, LA-6601P, LA-8381P,HP Envy 13 (Quanta SP6),HP HDX 18 (Quanta UT7),HP HDX X16 (Quanta UT6),HP Mini 210,HP TouchSmart tx2 Quanta TT3– 31TT3MB0020 – DA0TT3MB8D0,HP-Compaq-Presario-CQ61,DELL ALIENWARE M11X R2,DELL ALIENWARE M18X R2,ALIENWARE M11X R1,ALIENWARE M17X R4,ALIENWARE M11X R3,DELL XPS 14Z,ALIENWARE M17X R3,ALIENWARE 14 M14X R2, HP ENVY 13,HP MINI 210,TOUCHSMART TX2,CQ61

BQ24747- >LA-6592P, LA-5571P, LA-6591P,DELL E6420,DELL E6510,E6420.

BQ24745 >LA-4041P(E6500),LA-4051P,(KRUG_14,15_UMA), Vostro_3350, VOSTRO 3300,HP Pavilion DM3 (Flex Arwen UA1,DELL E6500,DELL E6500, DELL E5420,Vostro 3350, VOSTRO 3300,HP Pavilion DM3.

BQ24751A- >LA-4595P, LA-4631P,LA-5155P, LA-4131P, VOSTRO 1310, VOSTRO 1720,VOSTRO 1520,DELL STUDIO 14Z 1440,STUDIO 1749,VOSTRO 1710,VOSTRO 1310, VOSTRO 1720.
MAX8731 >LA-4151P, Dell_Studio_1450_1458,LA-3001P,XPS_M2010, LA-4291P, Dell+Studio+XPS+1645, DELL 1450, LA-3741P(D430) , D620, VOSTRO 1014, VOSTRO 1088, VOSTRO 1220, HP-Compaq Presario CQ62,Acer_Aspire_2920,E4300, Dell_Studio_1450_1458,DELL XPS M1210,E4200,XPS M2010,Dell Studio XPS 1645,DELL 1450,D430,D620, VOSTRO 1014, VOSTRO 1088, VOSTRO 1220,CQ62,Acer Aspire 2920.

BQ24765 >DA0D13MBCD1, LA-5691P, LA-6611P, VOSTRO 3450,XPS 13 L321X,E4310,E6320,VOSTRO 3450.

BQ24777- >LA-A972P,LA-A971P,LATITUDE E7250,LATITUDE E7250.

BQ24737 >VOSTRO 5460, LA-7841P,VOSTRO 5460,XPX 14 L421X)

MAX1535B >D510,D610,D510,D610.

MAX1645A >LA-1601, LA-1901,D600, D400,D600, D400.

MAX1909E >D410, DV4000,D410,DV4000.

OZT01J0Z >DELL C640,DELL C640.

BQ24720 >>D820

BQ24721- >VOSTRO V13, DV3000

ISL88739 >LA-D822P,INSPIRON 14 7460P,INSPIRON 5368,INSPIRON 5568,INSPIRON 7368,INSPIRON 7568,INSPIRON 7778)

BQ24736 >>RICHIE_SE_11241-10,Compal LA-9371P,683495-001-MB,HP 4340S,HP ZBook 17,PROBOOK 4540S)

BQ24703 >>HP Compaq 6520s 6525s 6720s 540 541,HP Compaq NC6220, LA-3262P,HP-Compaq-nc6400-Compal,Caymus-Discrete-LA-2951P,HP Compaq 6520s,HP Compaq 6525s,HP Compaq 6720s,HP Compaq 540,HP Compaq 541,HP Compaq NC6220,HP Compaq 6910p,HP-Compaq-nc6400.

BQ24738 >>LA-A994P,Inventec 15SBGV2,DAOR62MB6E0,HP 250 G3,HP Envy TouchSmart 15,),HP Pavilion 15 series.BQ24740 - >PROBOOK 4320S,4321S,COMPAQ 6720S, COMPAQ 6530S, ELITEBOOK 2560P, ELITEBOOK 2740P,HP ELITEBOOK 6440b 6540b,HP EliteBook 6930P, HP Pavilion DV4 (Quanta LA-4117P),HP Pavilion DV4 CQ41 Core(Compal LA-4106P),HP ProBook 4310s,HP ProBook 4311s,HP ProbooK 4326 (Quanta SX7),HP ProBook 4410s 4411s,HP PROBOOK 4411s 4510S,HP Probook 4431s,HP Probook 4720S (Wistron),HP ProBook 5310M (Compal LA-5221P),HP ProBook 5320 (Compal LA-6161P),HP Probook 6550b (Inventec Diesel 10 Discrete),ELITEBOOK 8460P(PROBOOK 4320S,PROBOOK 4321S,COMPAQ 6720S, COMPAQ 6530S, ELITEBOOK 2560P, ELITEBOOK 2740P,HP ELITEBOOK 6440b 6540b,HP EliteBook 6930P, HP Pavilion DV4 ,HP Pavilion DV4 CQ41,HP ProBook 4310s,HP ProBook 4311s,HP Probook 4326,HP ProBook 4410s 4411s,HP PROBOOK 4411s,PROBOOK4510S,HP Probook 4431s,HP Probook 4720S,HP ProBook 5310M,HP ProBook 5320,HP Probook 6550b,ELITEBOOK 8460P)

BQ24704 >>HP Envy 15, HP Envy 17,HP Pavilion DV6,AMD,Quanta SP7,Quanta SP8,HP Pavilion DV6)

BQ24725- >QAU30 Compal LA-8661P,HP Envy Sleekbook 6.

BQ24721C- >Inventec ST145a-UMA,HP Pavilion DV5.

MAX1772 >DAOCT6MB6F1 (Quanta CT6),HP Pavilion DV1000 DV4000 ZE2000 Compaq M2000 (Quanta CT3),Acer_Aspire_3000_5000_Quanta_ZL5,HP Pavilion DV1000 DAOCT6MB6F1 (Quanta CT6),HP Pavilion DV1000,DV4000 ZE2000 Compaq M2000 (Quanta CT3),Acer Aspire 3000,Acer Aspire 5000 Quanta ZL5)
MB3887 >HP Pavilion DV5000 (Compal LA-2841),Acer_Aspire_2000_2010_2020_COMPAL_LA-2242,HP Pavilion DV5000,Acer Aspire 2000,Acer Aspire 2010,Acer Aspire 2020.

OZ8681 >Quanta R23 DA0R23MB6D1 AMD,HP PAVILION G4,HP PAVILION G6, HP PAVILION G7.

BQ24726 >Ramones 6050a2465501,DA0F11MB8D0,HP Probook 4530s,HP ProBook 5330M.

BQ24728 >HP Sleekbook 14-156LA (Quanta Volks) DAOU35MB6C0,1CEA10 6050A2612501-MB-A02 ->>(HP Sleekbook 14-156LA.

MAX8724 >Acer_Aspire_1640Z_Quanta_ZL9,Acer_Aspire_3050_Quanta_ZR3, Acer Aspire 1640Z Quanta ZL9,Acer Aspire 3050 Quanta_ZR3)

MAX1909 >Acer_Aspire_3010_5010,Acer_Aspire_3010_5010.

MAX8725 >Acer_Aspire_3040-5040,Acer_Aspire_3040-5040.

MAX1908 >>COMPAL_LA-3151P, COMPAL_LA-3151P,COMPAL_LA-2362,Acer Aspire 3100 COMPA LA-3151P,Acer_Aspire_3100_COMPAL_LA-3151P,Acer Aspire_350_COMPAL_LA-2362.
 
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Inductor Motherboard Tester, Detect Inductance & Coil Activity – Diagnose Dead Rails in Seconds!


Inductor Handheld EMF Pulse Inductor Tester for Laptop Motherboard Repair
This compact diagnostic tool is designed to detect high-frequency electromagnetic pulses emitted by PWM coils on laptop motherboards. It allows technicians to quickly identify switching activity in critical power rails—such as CPU, GPU,POWER SYSTEM or charging circuits, without the need for pulse trigger test with oscilloscope.

Simply place the tester near a motherboard inductor; if switching pulses are present, the onboard Green LED will turn on. This makes it an essential tool for diagnosing issues like dead CPU rails, shorted VRMs, or missing gate drive signals during board-level repair.


Detect Missing Switching on Key Power Rails
Identify inactive S5, S0, VCORE, or VCCGT rails with ease.
Pinpoint Faulty Components
Helps locate issues such as open coils, circuit bad MOSFET drivers, or failing PWM controllers.
High-Frequency EMF Detection
Sensitive to switching frequencies from 100 kHz up to several MHz.
Instant Visual Feedback
LED indicator on when switching pulses are detected.


Specs:
Power: CR2032 coin cell ( not included )
Indicator: Red LED for for POWER & Green LED for pulse detection
Trigger range: 100 kHz – 5 MHz
Size: Compact and fits any technician’s toolkit
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DDR5 LAPTOP TESTER FOR Motherboard Detect the CPU Short or Open And Slot tester with Light Detection

DDR5 Laptop Motherboard Tester
Quickly detects CPU shorts, open lines, and DDR5 slot faults.
LED indicators show fault status—off for open line, extra bright for short.
Test points like BULK,ALERT,HSA,RESET, HSDA, HSCL،POWER GOOD can be measured online.
Pin reference guide on the back for easy troubleshooting.


DDR5 Laptop Motherboard Tester – Detects CPU Short or Open Circuit & Slot Status via Light Indicator
How It Works:
Open Line (No Connection):
The LED remains off, indicating a possible fault in the DDR5 slot or the CPU—this may also suggest the CPU requires reballing.
Short Circuit Line : The LED will glow brighter than the others, signaling a short in the slot or CPU area.

Important Test Points:
For advanced diagnostics, you can remove the tester’s battery (cr2032) and power on the laptop to measure key signals directly from the test points, including:
  • BULK
  • HSDA
  • HSCL
  • HSA
  • RESET
  • ALERT
  • POWER GOOD
These points help in verifying the integrity of DDR5 Power lines and communication between the CPU and memory slot.

Easily Detect CPU Reset Signal:
The tester allows for quick and easy detection of the reset signal coming from the CPU, helping you verify whether the processor is initializing properly.

LED Indicator Pin Reference:
If any LED shows abnormal behavior, you can identify the corresponding pin number by checking the label on the back of the tester. This allows for easier troubleshooting of specific signal lines or faults.

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Clear BIOS Asus Rog G531GU

Hello! Hi, I dumped my password protected BIOS. I flashed a new BIOS from this site (https://www.alexlaptoprepair.com/forums/threads/asus-rog-g531gu-g531gw-1-6-bios-dump.3918/), and everything works fine. I don't see the Mac address and PC serial number available on the BIOS screen. I have these details, but I don't know how to enter them into the new BIOS. I'm attaching the original dump and the clean BIOS from this site.

I kindly ask if it is possible to remove the password from the original BIOS or update the clean BIOS with the PC serial number and the Mac address.
thank you !!

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The MEC JTAG Adapter is designed to save you time by allowing easy and fast access to MEC KBC I/O. It supports multiple headers and is compatible with SUCCESSOR, SVOD,RT809XX and UNIVERSAL programmers.


mec1663,mec5085,mec5075,mec1609,mec1619,mec1618,mec1633,mec5085,mec55,mec5045,mec5035,mec1663,mec1650
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The MEC JTAG Adapter is built to streamline your work with MEC KBC I/O like , providing quick and convenient access while saving valuable time. It supports multiple header types and is fully compatible with programmers such as SUCCESSOR, SVOD, RT809XX, and more.
This adapter includes all the essential JTAG pins—TMS, TDI, TCLK, RST, GND, and 3.3V—allowing you to power the latest MEC chips directly from your programmer, eliminating the need to connect an external power adapter to the motherboard.
It also features breakout points connected to some resistors places allow you to pull-up or pull-down for key signals like MSDATA, nFWP, and RESET, which are useful in scenarios where enabling or disabling write protection or other features is necessary. These breakouts make it easy to adapt the configuration depending on your specific use case.
The MEC JTAG Adapter comes complete with the required headers for soldering (based on your programmer), a connector, and JTAG wires.


USB-C Line Tracer and Tail Plug Detector – Laptop Dock Tester Tool



This compact USB‑C tester plugs directly into a port to probe every signal line, using the internal ESD protection diodes of connected TYPE-C ICs OR PD CONTROLLER. You can directly check the USB-C Port and all lines connecting to the Type-C chip directly or PD chip , and also know what protocol is activated on this input.
The tester can check all these pins

Power & Configuration
CC1, CC2 (A5, B5): Configuration Channel – determines plug orientation, establishes host/device role, negotiates power level, and signals alternate modes.
Data PINS
D+, D- (A6, A7, B6, B7): USB 2.0 differential pairs – always connected regardless of plug orientation.
TX/RX pairs (A2/A3/A10/A11 and B2/B3/B10/B11): SuperSpeed signals for:
USB 3.1 Gen 1/2
Thunderbolt 3/4
DisplayPort (via Alt Mode)
These lines are flipped depending on plug orientation.
Sideband / Auxiliary
SBU1, SBU2 (A8, B8):
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Analog audio (e.g., headphone dongles)
USB Debug Accessory Mode (UART)


No HS, SBU, or CC → No CC negotiation; no PD connection .
HS detected, SBU absent → Likely USB‑3.x only.
HS & SBU detected → Indicates support for DP/Thunderbolt or USB‑3.x with SBU-based features.
SBU only → Debug or audio path present, but no USB‑3.x.


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MPS PMBUS PASSWORD PROTECTION

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1000068222.jpg
Do processor circuit ICs (VRM) really have passwords?
Do you remember the video where I explained how to program modern processor circuit ICs using a PMBUS programmer? I mentioned at the time that in some cases, we would need the schematic, because even though there are many dump files available now, for some models it’s not possible to backup the file from another board because the ic is protected.

This is because some modern processor VRM ICs support a feature called PMBUS Protect. This feature allows the manufacturer to set a password to protect the IC. It provides three levels of protection:
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  2. Protection from writing to the registers
  3. Protection from both reading and writing to the registers
For the first and third types, it's not possible to take a backup from the IC—even if you have a working board with the same model. In this case, you’ll need the schematic to manually build a configuration that suits the processor circuit and its components.

As for the second type, you can still take a backup and write it to a new or used VRM IC later without any issues.

Are there any ways to break this protection? No.

Are there any workarounds to bypass it? No.

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