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uligli started a topic Motherboard wont post

in Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals

06-06-2020, 12:15 AM
Motherboard wont post

Hi, i have a 775 mobo and i cut the plastic corners to put a 771 cpu, thats why i fucked this thing up everything was fine unitl one day i was freaking distracted and missplaced the cpu into the socket (incorrect position), now the mobo would power on, lights up & fans on, but wont post, debug codes indicates harware error, so any idea if i can fix it? Would really appreciated any comment to help!

-Motherboard : EVGA nForce 790i SLI FTW
-Tried different cpu (775) same problem
-Dont have other mobo to test the 771 cpu to see if it´s burned or something...

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uligli replied to Asrock H55M-LE

in Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals

07-10-2016, 03:09 PM
Re: Asrock H55M-LE

Thank you jiroy, very appreciated for your reply. Now i hope thats the only problem of this board because i dont know why it blew the new caps.

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uligli started a topic Asrock H55M-LE

in Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals

07-09-2016, 09:23 PM
Asrock H55M-LE

Hello, i bought a used mb, can post, but blown 2 new Nichicon 1000uf 6.3v when i changed it, then i ask the previous owner, he said the problem is the audio chip, Via VT1708S, i took a look then find out a pin from the chip is broken, the problem is the chip is already damaged phisically, the first big question i am asking is may i desolder completely the audio chip and it wouldnt affect anything but no sound????? 2nd, can someone tell me the cap spec behind the usb and audio I/O? It has a 1000uf 6.3v cap but i want to make sure.

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uligli replied to Coolermaster Extreme Power Plus 550W design problem

in Troubleshooting Power Supplies and Power Supply Design

04-10-2013, 01:47 AM
Re: Coolermaster Extreme Power Plus 550W design problem

Mine has been working without issues more than one year, almost 12 hours every day.

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uligli replied to Help with transistor equivalent

in General Electronics Technical Discussion

10-11-2012, 06:00 PM
Re: Help with transistor equivalent

Thank you Tom!

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uligli started a topic Help with transistor equivalent

in General Electronics Technical Discussion

10-11-2012, 05:42 PM
Help with transistor equivalent

I can't find any spec. of this transistor, someone help me please.

LT 7210
MBR10100CT

I need a replacement to fix the inverter/power board of a Hyundai LCD...

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uligli replied to Monitor w2207 ILIF-031

in Troubleshooting Computer Displays

10-11-2012, 05:33 PM
Re: Monitor w2207 ILIF-031

Take a look of these...

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uligli started a topic Can size

in Troubleshooting Power Supplies and Power Supply Design

06-07-2012, 08:27 PM
Can size

Greetings, i've always had this doubt about if the size of a cap does matter when is about perfomance. I'm recapping one of my old PSU, Hiper TypeR 580w, and it has a 3300uF 16V cap which is bigger than the new cap, same height but the old cap's diameter has 3 or 4 mm more than the new one, is it ok to use it even is smaller?

Old cap: JEE 3300 uF 16v "Low ESR" printed on the cap
New cap: Samxon 3300 uF 16v RS...

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uligli replied to Amtech flux for reballing

in General Electronics Technical Discussion

01-16-2012, 12:39 PM
Re: Amtech flux for reballing

Thank you guys for the help!!

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uligli replied to Amtech flux for reballing

in General Electronics Technical Discussion

01-16-2012, 12:39 PM
Re: Amtech flux for reballing

Yesterday i took more time to take a look on ebay, there are sellers from US & Canada selling the fake ones on ebay. I do a lot of research about the product and the seller before buying anything on ebay

Here is a detailed article about fake/genuine:
[url]http://ultrakeet.com.au/index.php?id=article&name=fluxInfo[/url]Re: Amtech flux for reballing<br /> ... ones on ebay....

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uligli replied to Amtech flux for reballing

in General Electronics Technical Discussion

01-15-2012, 01:26 PM
Re: Amtech flux for reballing

Thank you godin!!!

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uligli started a topic Amtech flux for reballing

in General Electronics Technical Discussion

01-14-2012, 08:49 PM
Amtech flux for reballing

I am going to buy a tube of Amtech flux on ebay, but there are 4 kinds for reballing, don't know which one is better for BGA reballing, any suggestion?

Amtech Gel Flux NC-559-V2-TF for BGA Rework
Amtech Gel Flux 4300/LF-4300-TF BGA Rework
Amtech Gel Flux RMA-223-TF for BGA Rework
Amtech Gel Flux SYNTECH-TF for BGA Rework

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uligli replied to HP W2207 driver board ILIF-031

in Troubleshooting Computer Displays

06-17-2011, 01:50 PM
Re: HP W2207 driver board ILIF-031

I have that board if u r interested pm me.

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uligli replied to Planar PL1700-BK - backlights go out

in Troubleshooting Computer Displays

11-30-2010, 03:15 PM
Re: Planar PL1700-BK - backlights go out

That remembers me back in the 90's when i rent a volleyball Nes game to play ...

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uligli replied to On board HD4200 vs 9500GT

in General Computer & Tech Discussion

11-05-2010, 11:47 PM
Re: On board HD4200 vs 9500GT

Well, the HD4200 is enough for low res gaming and more than enough for video playback.

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uligli replied to Suggested replacements

in General Capacitor Questions & Issues

10-30-2010, 07:23 PM
Re: Suggested replacements

Great post PCBONEZ Thank you!

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uligli replied to vp930b no images

in Troubleshooting Computer Displays

10-19-2010, 05:20 AM
Re: vp930b no images

Unbelievable! I fix the issue by recaping the small cap on the psu board (10 uF 50v) after recaping all the caps on the inverter and logic board almost give up thinking the probelm is the ic chip untill i decided to change that small cap ...

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uligli replied to vp930b no images

in Troubleshooting Computer Displays

10-19-2010, 04:57 AM
Re: vp930b no images

Before the total recap...

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uligli replied to Samsung SyncMaster 731N Screen on and off.

in Troubleshooting Computer Displays

10-19-2010, 04:12 AM
Re: Samsung SyncMaster 731N Screen on and off.

Please see post #18, pic #3. I soldered a 47 ohm resistor at the ic chip, to fix my problem i had to put more voltage so i removed the resistor and made a bridge.

Your monitor is different than mine, so i can only recommend you:
1) resolder all the boards
2) check logic to lcd panel's cable
3) recap all except the big one on the inverter/psu board (including the small caps, today i fix my vp930b that had display issue by recaping a 10 uF 50v cap)

Don't give up :chee...

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uligli replied to Samsung SyncMaster 731N Screen on and off.

in Troubleshooting Computer Displays

10-16-2010, 04:19 PM
Re: Samsung SyncMaster 731N Screen on and off.

I fix the problem by removing the resistor and make a bridge at pin 5 to 6, now the monitor works flawless....

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