I have a card that does post at all, the owner said it does go into windows but it gets stuck on the logo with artifacts, I have no idea if he is lying or not... I tried the card on my pc and it does not post at, no beeps, no bios nothing just all fans turning and nothing else. I tried plugging DVI or hdmi but nothing, I tried unplugging the 8 pin plug from the power supply and it's the same thing.
I just want it to post and get into the bios at least.
Forgive me if I am wrong, but I tested the 3 PCIe 12v power pins on the left(550ohm) and the 4th one from the right 3.3v (400ohm),...
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Have just a general computer question, post it here. This can be anything from an OS issue, hardware issue not related to capacitors, upgrade question, or whatever basic tech-related issue is on your mind.... This is also a good place to share your tech projects!
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Asus VG278 mosfet identification ?
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Corsair HX620W - dead APFC MOSFET
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Welcome to our newest member, Giuseppe Mosso.
Latest Topics
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by chaos-theory04-18-2024, 02:42 AM
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by tommy97Hi,
i've got for repair Lenovo L340-15IRH fg541/fg741 nm-c362 rev 1.0, laptop have instant short 20v 0.20amp draw, lv5083a goes to 100degree, i've removed 1 shorted cap next to the IC and short still remain, from look of it short comes from legs 16-25, i can't find what this IC i believe is 3/5V regulator?
First mosfets normal 20v Source and drain and Gate 25v...Yesterday, 11:43 AM -
by nabilgocan anyone help me remove panasonic CF-LV8SDDZTF
model CF-LV8SDDZTF
serial 2HKCC48561
borad number DHLB1434ZC/X1
β...-
Channel: BIOS Requests ONLY!
Yesterday, 06:02 PM -
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by dmccul2698Hello, My head unit developed strange behaviors so I ran the built-in diagnostic package which returned "No EEProm". The service manual says there is no EEProm connected. I approached Pioneer and they said to swap out the DSP board. All said and good but the DSP board is $860 USD. I am hoping someone can help me
1). Understand the schematic and check the connections between the EEProm and DSP
2). Check the functionality of the EEProm
I don't know if this is the unit's problem but it's a place to start.
I have little to no electronic experience...6 Photos-
Channel: Troubleshooting Audio Equipment
04-08-2024, 05:32 PM -
-
by dl1nn1uLooking for a working BIOS for GIGABYTE G5 KD laptop motherboard NH50HPMB-0D
There are also markings on the motherboard
6-71-N5HP0-D04
SN/ 1TNH50HP000003054018
P/N 6-77-NH50HP00-D04-5C#1GB1
The problem is as follows
The laptop turns on, there is no image or backlight, after a minute the fans turn on, there is no old BIOS dump, please helpβ...-
Channel: BIOS Requests ONLY!
Yesterday, 08:40 AM -
-
by KibergeHI guys!
I've got a Samsung LH82QENELGC/EN with a problem and need some advice and I hope this is the forum to use?
I'm from Norway so I'd like to apology in advance if my description of the fault is kind of simple or the names on the components are way off. π
the TV is powering up, working as normally and picture is all good, except a 1.5-inch-wide vertical line of snow/static across the screen.
This TV is a Signage Display/Public Display version and it's been used at my work for 4-5 years showing commercials 24/7. The fault occurred when...04-22-2024, 11:28 AM -
by jasaklDear community,
i have searched the internet but i dont found a working solution for my problem:
I have about 150 hard drives (mostely from hitachi 160gb HTS543216L9SA00) from Pansasonic CF-19 MK3 Notebooks.
All devices had a BIOS Password and HDD encryption enabled.
Now i try to reuse the HDDs, but i cant format them. I already tried windows Diskpart with argument "attributes disk clear readonly" but it says "cant delete" and i tryed several partition and low level formatters (like partition wizard, AOMEI and Easus).
But all of...Today, 02:41 AM -
by ojoilHello,
I read through this post:
[url]https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-tvs-and-video-sources/88324-samsung-un49mu7000f-dead-no-power/page2[/url]
It seems like my tv is exhibiting similar symptoms. I have backlight when only the power supply is connected, but I didn't test much further.
The main board is slightly different (BN94-12402R) although it is stamped the exact same...
Board is stamped:
MODEL: KANT_M_BUILT_IN
CODE: BN41-02568B
MODEL: BN41-02568
I wonder...Yesterday, 09:06 PM -
by mastermTV: JVC LT-43C888 (purchased in 2018). This is a smart TV with Netflix, Youtube, Freeview and other applications via 'Viewd' app store
Problem with TV:
- Netflix stopped working so i tried to do factory reset from the TV menu.
- I confirmed on-screen but the factory reset did not happen even. It did not take me to 'first-time installation' screen as mentioned in the manual.
- After waiting for some time, the TV went into a boot loop.
- JVC logo comes on the screen and LED light flashes for some seconds, then it reboots again and the same thing happens
...Yesterday, 03:03 AM -
by SkizzyHello,
Does anyone have the schematics for the backlight circuitry for the M15R5 Ryzen edition?
mainboard model: LA-K453Pβ
Your help is very much appreciated-
Channel: Schematic Requests ONLY!
Yesterday, 07:59 PM -
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by nabilgocan anyone help me remove panasonic CF-LV8SDDZTF
model CF-LV8SDDZTF
serial 2HKCC48561
borad number DHLB1434ZC/X1
β...-
Channel: BIOS Requests ONLY!
Yesterday, 06:02 PM -
-
by jasaklDear community,
i have searched the internet but i dont found a working solution for my problem:
I have about 150 hard drives (mostely from hitachi 160gb HTS543216L9SA00) from Pansasonic CF-19 MK3 Notebooks.
All devices had a BIOS Password and HDD encryption enabled.
Now i try to reuse the HDDs, but i cant format them. I already tried windows Diskpart with argument "attributes disk clear readonly" but it says "cant delete" and i tryed several partition and low level formatters (like partition wizard, AOMEI and Easus).
But all of...Today, 02:41 AM -
by tommy97Hi,
i've got for repair Lenovo L340-15IRH fg541/fg741 nm-c362 rev 1.0, laptop have instant short 20v 0.20amp draw, lv5083a goes to 100degree, i've removed 1 shorted cap next to the IC and short still remain, from look of it short comes from legs 16-25, i can't find what this IC i believe is 3/5V regulator?
First mosfets normal 20v Source and drain and Gate 25v...Yesterday, 11:43 AM -
by grimacelordHello,
I've been working on this laptop for a few hours and I am stumped. Still learning this kind of troubleshooting. Hoping someone can help.
[U][B]Computer Information:[/B][/U]
Model: Lenovo IdeaPad Gaming 3 15ARH7
Motherboard model: NM-E211 Rev: 1.0
Schematic, Boardview, & FlexBV Free - Attached
[U][B]Problem:[/B][/U]
The computer does not charge the battery or power on also does not power on with power adapter only. Battery have no charge on it at all (reading mV on battery charge). When connecting the power adapter...04-29-2024, 01:27 PM -
by SkizzyHello,
Does anyone have the schematics for the backlight circuitry for the M15R5 Ryzen edition?
mainboard model: LA-K453Pβ
Your help is very much appreciated-
Channel: Schematic Requests ONLY!
Yesterday, 07:59 PM -
-
by sauceHi,
First I am french sorry for my english.
I bought this LG OLED 65C6V sold because when we press the power button I can hear the click of power board relay, the red light blinks one time then returns red.
The seller said he try to replaces the 3 cards (power + motherboard + t-con) but still the same issue (but the cards were not buyed at then same seller).
I test power suply in standalone (bridges between 3v5 and PWR_ON, 3v5 and DRV_ON, 3.5V and 12v_ON and I have all stable voltages (3v5, 12VM, 24VS, 12V t-con, 24V t-con.
So I...Today, 01:17 AM -
by waterchillHey folks, I have this iPad Pro 12,9" 4Gen A2232 here with no charging issue. The main fault was a crossed pins / faulty USB charging port due a bad cable.
So I started to replace this parts:
- replaced usb-c port -> no result
- replaced battery -> no result
- replaced usb-c chip CD3217B12A -> no result
- replaced 343S00326 -> no result
- replaced 343S00327 -> no result
- replaced 343S00328 -> no result
I have no more ideas for this issue. There is no short on the whole board, and the iPad is working fine...Yesterday, 05:37 AM -
by EazyBoneLooking to up my game a little bit, but these programmers seem a bit daunting.
Trying to get a device for EMMC repair, and it's very difficult to lookup all the words to find if I'm on the right track lol.
Trying to reprogram EMMC on Sony/Hisense mainly but would like to hit a few other brands.
My question is would either of these work? And is there a specific card reader I need for TV emmc? There is like 10-40 additional pieces that I can get but not sure what I actually need for my application only.
I may do eeprom as well. Can someone point...04-21-2024, 08:18 AM -
by ojoilHello,
I read through this post:
[url]https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-tvs-and-video-sources/88324-samsung-un49mu7000f-dead-no-power/page2[/url]
It seems like my tv is exhibiting similar symptoms. I have backlight when only the power supply is connected, but I didn't test much further.
The main board is slightly different (BN94-12402R) although it is stamped the exact same...
Board is stamped:
MODEL: KANT_M_BUILT_IN
CODE: BN41-02568B
MODEL: BN41-02568
I wonder...Yesterday, 09:06 PM -
by grimacelordHello,
I have an HP 14-dq0055dx laptop here that came in for boot looping. It was previously taken to another shop and they tried flashing a BIOS firmware to the chip, so I cannot take an original dump. For a second or two, a message will come up on the screen that says:
This loop will go on for as long as you like. I let it run for about 12 hours and came in the following morning and it's still looping.
Motherboard model number: DA0PAMB46A1 REV: A
Secondary motherboard model number: 0PAB
SKU: 685K4UA
Attached is the latest...-
Channel: BIOS Requests ONLY!
Yesterday, 09:11 AM -