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Search: Posts Made By: ktmmotocross
Forum: Troubleshooting Laptops, Portable, and Mobile Devices Yesterday, 11:39 AM
Replies: 0
Views: 24
Posted By ktmmotocross
lenovo G50-30 UMA no CPU/GPU voltage after burned CPU/GPU power ic

Hello. Have this Lenovo g50-30 NM-A311 that came with burning U901 NCP CPU/GPU power ic. after replace, everything works, but with start button dont have CPU/GPU voltage. i have VR_ON signal, VCC...
Forum: Troubleshooting Laptops, Portable, and Mobile Devices Yesterday, 06:55 AM
Replies: 10
Views: 143
Posted By ktmmotocross
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 03-17-2019, 01:22 PM
Replies: 5
Views: 89
Posted By ktmmotocross
Re: Wich power supply to find a short circuit on the mobo?

DPS5015, DPS3012 ...

these DPS is my favourite. i never buy any other PSU :)
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 03-17-2019, 02:22 AM
Replies: 224
Views: 125,176
Posted By ktmmotocross
Re: List of pin compatible Laptop ICs

anybody knows replacement for RT8248A ?
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 03-16-2019, 08:52 AM
Replies: 10
Views: 143
Posted By ktmmotocross
Re: ASUS ROG G751JM - self start and no VCORE and VGPU

no luck, dont have it on any board

anybody know intechange for RT8248A ?
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 03-16-2019, 07:52 AM
Replies: 10
Views: 143
Posted By ktmmotocross
Re: ASUS ROG G751JM - self start and no VCORE and VGPU

no missing or damged components find. try to find replacement for it
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 03-16-2019, 06:43 AM
Replies: 10
Views: 143
Posted By ktmmotocross
Re: ASUS ROG G751JM - self start and no VCORE and VGPU

i have readings from U8200 and i have VIN and EN. but this TON looks like low to me. what do u thing after this reading?
resistance on 1.05V line is 76ohm
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 03-16-2019, 05:49 AM
Replies: 10
Views: 143
Posted By ktmmotocross
Re: ASUS ROG G751JM - self start and no VCORE and VGPU

find almost everything on sulalaptop
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 03-16-2019, 05:44 AM
Replies: 10
Views: 143
Posted By ktmmotocross
Re: ASUS ROG G751JM - self start and no VCORE and VGPU

have u guys anybody boardview for JM version? i have JY and it is completely differnet
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 03-16-2019, 01:13 AM
Replies: 2
Views: 84
Posted By ktmmotocross
cheap programmer for sio ITE 8585 and others

Hello.
I want to have opinion to program sio chips but programmers is so expencive so u cannot deside what programer to buy. i need to program mostly newer sio

what is your experience of which...
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 03-15-2019, 04:05 PM
Replies: 10
Views: 143
Posted By ktmmotocross
Re: ASUS ROG G751JM - self start and no VCORE and VGPU

from this table of measured voltages looks like it all started from missing 1.05VS_PWRGD signal. so tomorrow i start from it
Forum: BIOS Requests ONLY! 03-15-2019, 03:02 PM
Replies: 2
Views: 45
Posted By ktmmotocross
Re: Need bios for ASUS ROG G751JM

dont have MXM card. but i found vbiosand main bios
i will post it tomorow
Forum: BIOS Requests ONLY! 03-15-2019, 01:16 PM
Replies: 2
Views: 45
Posted By ktmmotocross
Need bios for ASUS ROG G751JM

Need bios for ASUS ROG G751JM and if u have EC or VBIOS
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 03-15-2019, 01:08 PM
Replies: 10
Views: 143
Posted By ktmmotocross
ASUS ROG G751JM - self start and no VCORE and VGPU

Hello.
Today i have something special.

Have this ASUS ROG G751JM that self start and no VCORE and VGPU

attached readings and repair manual shows that PM_PWROK signals is missing
later i make...
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 03-15-2019, 01:02 PM
Replies: 8
Views: 114
Posted By ktmmotocross
Re: MOSFET alternative FDMC6679AZ

first is different package and second is usual 1.3.4
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 03-14-2019, 05:36 PM
Replies: 8
Views: 114
Posted By ktmmotocross
Re: MOSFET alternative FDMC6679AZ

did u see usual mosfet with different pinout than 1/3/4?
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 03-14-2019, 03:49 PM
Replies: 8
Views: 114
Posted By ktmmotocross
Re: MOSFET alternative FDMC6679AZ

dont bother finding the right alternative. grab any p-channel mosfet from any bboard that have more than 20A max current
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 03-12-2019, 02:46 PM
Replies: 7
Views: 142
Posted By ktmmotocross
Re: Is it really the NEC/Tokin ?

why dont u ask for brd or schem here?
why u spam with another thread in bad section?

damn put yourself together dude
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 03-12-2019, 12:15 AM
Replies: 2
Views: 73
Posted By ktmmotocross
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 03-11-2019, 10:20 AM
Replies: 7
Views: 142
Posted By ktmmotocross
Re: Is it really the NEC/Tokin ?

replacing that cap is still good, because of their failing. u cannot measure ripple without osciloscope
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 03-11-2019, 07:54 AM
Replies: 2
Views: 73
Posted By ktmmotocross
Lenovo G40-30 NM-A311 - U401 burning

Hello.
Have this Lenovo G40-30 NM-A311, that have U401 /3,3ALW/burning.

I replaced it but still the same. no short on any rail. when i remove coil 3,3V is there. so i inject 3,3V, but when i...
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 03-11-2019, 04:37 AM
Replies: 6
Views: 146
Posted By ktmmotocross
Re: Toshiba A200-17O black screen. LA-3481 (BIOS or reflow ?)

offcourse it is those ATI GPU HD2600. have it on some my own laptops. it is always failing. it can withstand few reflows but after that it completly fail. but with reball it can work for much than a...
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 03-10-2019, 04:58 PM
Replies: 12
Views: 248
Posted By ktmmotocross
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 03-10-2019, 12:22 AM
Replies: 5
Views: 146
Posted By ktmmotocross
Re: Asus X550CC switch?

if u have gpu nvidia 720 try to heat it up to 120c and after minute try to boot up
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 03-10-2019, 12:19 AM
Replies: 12
Views: 248
Posted By ktmmotocross
Re: Asus k55 Cpu V-core short with cpu in and not without it

it is normal if u have something bad on board. power up process stop before processor voltage is activated
Showing results 1 to 25 of 500

 
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