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Search: Posts Made By: piernov
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices Today, 05:56 AM
Replies: 12
Views: 178
Posted By piernov
Re: acer predator 791g no power

Always check for shorted high-side MOSFET before injecting anything.
Forum: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals 11-23-2021, 03:50 AM
Replies: 2
Views: 123
Posted By piernov
Re: Specific Caps Keeps Venting

Make sure you oriented them as originally. On most Asus/Pegatron boards the marking for capacitor polarity is reversed.
Also cap should be 16V not 12V if it's on the VRM input.
Forum: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals 11-21-2021, 11:35 AM
Replies: 10
Views: 241
Posted By piernov
Re: ASUS GTX 1060 Dual 6 GB Missing component

Resistors next to the missing IC are destroyed too and some are missing as well. Might have been liquid damage eating the pads, and someone tried to fix it before.
Forum: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals 11-19-2021, 01:53 PM
Replies: 27
Views: 4,718
Posted By piernov
Re: Software to analyze Video RAM faults on graphics cards?

Shouldn't matter.


Error is clearly here. Haven't checked the image though so dunno if it's correct or not.
Forum: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals 11-18-2021, 05:02 AM
Replies: 14
Views: 316
Posted By piernov
Re: MSI GeForce GTX 970 Gaming 4G error 43.

If they don't want to use SLI there is no point in fixing the SLI bridge header. However knowing how it was damaged may help, because it may have damaged something else (and could have damaged the...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 11-18-2021, 04:52 AM
Replies: 4
Views: 153
Posted By piernov
Re: Missing PP5V_S4RS3 on 820-00165-A

https://logi.wiki/index.php/G3_to_S3_State_for_Ivy_Bridge_Haswell_and_Broadwell...
Forum: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals 11-17-2021, 02:26 PM
Replies: 3
Views: 154
Posted By piernov
Forum: Schematic Requests ONLY! 11-09-2021, 11:58 AM
Replies: 17
Views: 1,464
Posted By piernov
Re: MacBook Pro 13-Inch 2020 820-01987 (A2289), 820-01949 (A2251)

.brd files in this thread work fine on OpenBoardView.
.brv files in this thread cannot be opened, BVRv3 is not supported by OpenBoardView.
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 11-09-2021, 09:29 AM
Replies: 83
Views: 1,413
Posted By piernov
Re: Asus x453ma not charging

English only on this forum.
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 11-09-2021, 09:16 AM
Replies: 4
Views: 222
Posted By piernov
Re: 820-01700 5v 0.25 a

SSD chips are almost certainly dead. T2 won't initialize in that case. Must be replaced from donor board then must perform T2 DFU restore.
Forum: General Computer & Tech Discussion 11-06-2021, 09:31 AM
Replies: 10
Views: 2,491
Posted By piernov
Re: GTX970 vs 1060

Pascal is likely to stay supported for a few years longer than Maxwell. Also it supports a newer CUDA version, may or may not matter here. That's to be expected for a graphics card 2 years newer....
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 11-05-2021, 07:49 AM
Replies: 4
Views: 175
Posted By piernov
Re: Macbook air 2019 1932 keyboard not working - no password

Has it been confirmed that the iCloud lock is not present anymore after a fresh install without having to bypass it again?
I heard it doesn't remove it entirely (since it's on Apple servers) and you...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 11-04-2021, 11:46 AM
Replies: 12
Views: 429
Posted By piernov
Re: MacBook Pro 16" A2141 Battery Issue

Not saying MobileSentrix is either good or bad here.
Garbage batteries are everywhere. Even a "good" supplier can have bad batches, and it looks like none of them test the batteries themselves so...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 11-04-2021, 11:38 AM
Replies: 6
Views: 268
Posted By piernov
Re: Macbook A1466 820 3437 no chime CPU hot

History, USB activity, SPI ROM flashed, PLT_RESET_L present?
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 11-01-2021, 09:19 AM
Replies: 12
Views: 429
Posted By piernov
Re: MacBook Pro 16" A2141 Battery Issue

You're getting garbage batteries, nothing surprising, market is filled with trash. Try another supplier. Also it's near impossible to buy good new genuine Apple batteries for MacBooks.
Forum: Schematic Requests ONLY! 10-27-2021, 10:03 AM
Replies: 3
Views: 441
Posted By piernov
Re: MacBook Pro 16 2021 (M1X) 820-02100 Schematics Are Here!

They leaked several months ago as part of the Quanta hack.
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 10-27-2021, 10:00 AM
Replies: 22
Views: 562
Posted By piernov
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 10-23-2021, 03:28 AM
Replies: 8
Views: 280
Posted By piernov
Re: HP Quadro K2100M MXM 3.0 type-a Laptop GPU short-circuit

Always the first thing to check regardless.
Could already have damaged the GPU by injecting some random voltage.
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 10-22-2021, 10:52 AM
Replies: 8
Views: 280
Posted By piernov
Forum: Schematic Requests ONLY! 10-21-2021, 05:36 AM
Replies: 11
Views: 7,556
Posted By piernov
Re: apple macbook a1398 15" retina (820-00426-A)

https://logi.wiki/index.php/Board_Number_by_A_Number
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 10-21-2021, 03:02 AM
Replies: 1
Views: 139
Posted By piernov
Re: Razor Blade Steath 13" RZ09-01963 plugged in Not Charging (new battery)

https://www.badcaps.net/forum/showpost.php?p=1002350&postcount=2
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 10-21-2021, 02:48 AM
Replies: 17
Views: 782
Posted By piernov
Re: MSI GE72 8RE CPU dead ?

T862 is not enough for anything, it's a scam, no idea how he could manage to solder any large BGAs on any board. (small BGAs are done with hot air, not this garbage) For large BGA you need a proper...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 10-20-2021, 03:23 AM
Replies: 10
Views: 579
Posted By piernov
Re: Dead gpu on HP G72 Laptop (How to switch to uma?)

This guide permanently connects the iGPU power rail to the 1.5V rail instead, that's definitely not how I'd do it.
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 10-19-2021, 09:54 AM
Replies: 11
Views: 396
Posted By piernov
Re: 820-3437-B No green light - Hot ISL - CHGR_UGATE Short

16V to VDD/VDDP of charger IC almost certainly killed it, they are rated for 7V max.
You should always disclose full history of the machine.
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 10-18-2021, 08:43 AM
Replies: 12
Views: 381
Posted By piernov
Re: MacBook Air 13 2015 A1466 820-00165

There's no relationship at all between POST and 1-wire circuit.
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