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Search: Posts Made By: piernov
Forum: BIOS Requests ONLY! Yesterday, 07:40 AM
Replies: 21
Views: 452
Posted By piernov
Re: me region 0.0.0.0 , powers off

If you can find it you can try to disconnect the ME Disable signal. On MS-16J51 it means removing R208. And also check voltage on HDA_SDO.
Forum: Schematic Requests ONLY! Yesterday, 07:24 AM
Replies: 18
Views: 696
Posted By piernov
Forum: Troubleshooting Laptops, Portable, and Mobile Devices Yesterday, 07:18 AM
Replies: 27
Views: 11,225
Posted By piernov
Re: inspiron 3521 ISL95833 +VCC_CORE ok, But no +VCC_GFXCORE_AXG.

https://logi.wiki/index.php/User:Piernov#I_am_missing_VCCAXG.2FVCCGFX.2FVCCGT_.28iGPU_core_voltage.29.2C_how_do_I_solve_it.3F
Forum: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals Yesterday, 07:15 AM
Replies: 1
Views: 34
Posted By piernov
Re: EPOX EP-MGF6100-M No USB Sound

I'm not sure what you mean. USB headphones don't rely on the integrated audio codec IC, they have their own audo codec IC. It'll show up as 2 different "sound cards" to the operating system. You have...
Forum: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals Yesterday, 07:10 AM
Replies: 7
Views: 115
Posted By piernov
Re: IBM Netvista 6790 - not booting

It may have been bad contact in the CPU socket or marginal capacitors. They work better when warmed up, and sometimes just applying power for a while helps them "resurrect" a little bit, but they're...
Forum: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals 02-25-2021, 12:00 PM
Replies: 24
Views: 706
Posted By piernov
Re: MPG X570 Gaming Edge - does not power on

From experience it's much more common to have randomly failed buck controllers than failing-but-not-shorted MLCC…
Forum: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals 02-25-2021, 08:59 AM
Replies: 24
Views: 706
Posted By piernov
Re: MPG X570 Gaming Edge - does not power on

Sounds right yes.
Should be easy to take care of the capacitor first.
Capacitance measurement in circuit is never reliable but you can still try replacing the capacitor. Then if nothing changes...
Forum: Schematic Requests ONLY! 02-25-2021, 08:46 AM
Replies: 6
Views: 1,694
Posted By piernov
Re: 820-01814-A schematic

Use 820-01041, same file.
Forum: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals 02-25-2021, 08:43 AM
Replies: 7
Views: 115
Posted By piernov
Re: IBM Netvista 6790 - not booting

Ok SL5VJ is good, it's a Willamette Pentium 4, there was a typo in the previous message since it read "800" instead of "400".

If voltage on CPU VCore is good you should also check the voltages...
Forum: BIOS Requests ONLY! 02-25-2021, 07:24 AM
Replies: 235
Views: 91,639
Posted By piernov
Re: Laptop Bios Working Files Laptop Motherboard Programing

Use search function, not difficult…
https://www.badcaps.net/forum/showthread.php?t=83021&highlight=820-01814
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 02-25-2021, 07:20 AM
Replies: 2
Views: 74
Posted By piernov
Re: macbook pro 15 late 2013 shutdown problem

https://logi.wiki/index.php/A1398_Common_issues
Forum: BIOS Requests ONLY! 02-25-2021, 06:01 AM
Replies: 3
Views: 67
Posted By piernov
Re: Macbook A1466 - Bios trouble

It's not specific to Apple products. It's the same for all Intel platforms with ME region, ie. most machines for the past 10 years…
Forum: Schematic Requests ONLY! 02-25-2021, 05:59 AM
Replies: 2
Views: 52
Posted By piernov
Re: Lenovo x1 carbon DX120 NM-B141 schemati

Use search function…
https://www.badcaps.net/forum/showthread.php?t=80530&highlight=NM-B141
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 02-25-2021, 05:55 AM
Replies: 5
Views: 269
Posted By piernov
Re: Lenovo Thinkpad P50, no power

Yes, you can remove the capacitors (just shift them away from one pad) and see if the resistance to ground increases. If no the PCH is most likely dead.
Forum: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals 02-25-2021, 05:47 AM
Replies: 7
Views: 115
Posted By piernov
Re: IBM Netvista 6790 - not booting

It's better to look at the sSpec which reads as SL*** on the CPU, it avoids confusion and also differentiates between steppings and generations which is very important for the Pentium 4 era.

In...
Forum: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals 02-24-2021, 03:34 PM
Replies: 24
Views: 706
Posted By piernov
Re: MPG X570 Gaming Edge - does not power on

It's MPS type markings: https://badcaps.net/forum/showpost.php?p=1006585&postcount=3
so marking code is "HB" and we suppose it's a buck controller, so just a matter of typing `mps "HB" buck` in...
Forum: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals 02-24-2021, 03:32 PM
Replies: 7
Views: 115
Posted By piernov
Re: IBM Netvista 6790 - not booting

What are the sSpecs of the CPUs?
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 02-24-2021, 10:21 AM
Replies: 11
Views: 248
Posted By piernov
Re: Macbook Pro A1706 820-00239

If it's sold for parts/not working and there's no explicit claim about the internal state of the device, that's on you. Seller isn't responsible for that. Please do not make it hard on the seller...
Forum: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals 02-24-2021, 10:04 AM
Replies: 24
Views: 706
Posted By piernov
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 02-24-2021, 04:32 AM
Replies: 5
Views: 269
Posted By piernov
Re: Lenovo Thinkpad P50, no power

Measure resistance to ground on RTCVCC.
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 02-24-2021, 04:27 AM
Replies: 5
Views: 119
Posted By piernov
Re: Acer E5-411 shorted

Short to ground is most likely on VSYS.
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 02-24-2021, 04:23 AM
Replies: 11
Views: 248
Posted By piernov
Re: Macbook Pro A1706 820-00239

Better buy donor boards when they are available.

Also a MOSFET doesn't go missing by itself. Someone already worked on this, if they pulled this specific part I'd assume they at least somewhat...
Forum: Schematic Requests ONLY! 02-23-2021, 12:17 PM
Replies: 31
Views: 6,090
Posted By piernov
Re: Lenovo Carbon X1 12298-2 LMQ-1 48.4LY06 Boardview/Schem?

bv boardviews must be converted to bvr using the bv2bvr tool in Linux to be able to open them with OpenBoardView.
Here it is anyway.
Forum: BIOS Requests ONLY! 02-23-2021, 04:28 AM
Replies: 6
Views: 110
Posted By piernov
Re: HP Compaq 2710p.

Link works fine, attached anyway.
Forum: BIOS Requests ONLY! 02-23-2021, 04:24 AM
Replies: 8
Views: 177
Posted By piernov
Re: Firmware password on A1286 820-2850-A need thanks

Password should be vqlere164 .
Method I explained above does work for 2010 and older machines so you're doing something wrong.
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