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Lightning fried my Ethernet chip on board

post #1 of 9
Thread Starter 
I have a Asus P5e WS pro motherboard
It has two Ethernet ports ( Marvel 88E8056 chip )

STORY

So i was watching a video online. The weather was really bad, lots of thunder and boom boom pow. The video just stopped playing i thought the internet might have gone but the task bar icon was still displaying the internet being connected. So i clicked the icon to investigate further and then i found out that the network adapter is not showing in network adapters category any more. so i restarted the PC, disconnected the LAN wire and as suspected the port was fried ( the Marvell chip most probably shorted as i was getting a constant green light of Ethernet port ON even without the cable inserted )


BRIEF

As this isn't the first time that i heard big thunder and my internet went away i was pretty much sure that the port was dead.

Rest of the mobo and each and every thing is working perfectly fine .

What i am here for ?

The Marvel chip 88E8056 that belongs to the Ethernet port that went faulty gets really hot when my PC is running even after disabling it in the bios . So what should i do ? Can i somehow desolder that chip or cut its vddc or anything ? ?

I love my mobo i know its way too old but it just too good for me and i really dnt want a chip to keep hurting it frown.gif

Please if this is not the right place for the thread point me in the right direction
post #2 of 9
This is the chip in question, right?




1. How fast does it heat up?
2. Does the temperature level off or keep climbing?
3. How hot does it get? I'm guessing too hot to keep your finger on it? Don't happen to have a temperature gun do you?

If it reaches a plateau and doesn't get any hotter, will a memory heat sink help?



I can't imagine even if you were able to de-solder it, you would be left with a functional board.
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post #3 of 9
Thread Starter 
Quote:
Originally Posted by wizardonthejob View Post

This is the chip in question, right?




1. How fast does it heat up?
2. Does the temperature level off or keep climbing?
3. How hot does it get? I'm guessing too hot to keep your finger on it? Don't happen to have a temperature gun do you?

If it reaches a plateau and doesn't get any hotter, will a memory heat sink help?



I can't imagine even if you were able to de-solder it, you would be left with a functional board.

That chip in the pic is for the other on board LAN however the chip is the same. ( in the pic u mentioned it would be behind the audio ports ( audio port is blocking the view )) . It gets hot when the motherboard is having power. I mean even if i dont start the PC it still gets hot when my main power switch is on.

It heats pretty fast like 0-70 in 2-3s biggrin.gif

Its too hot when the PC is running i cant keep my finger on it for 2 s. And off-course it limits to some high temp but i can't measure it. But i am sure that it stops at some limit or the motherboard would have died already.

The idea about the memory heat sink is really good but the issue is that it heats a few more components too like a transistor and a coil or some thing that close there .
Edited by beret21 - 10/28/15 at 3:03am
post #4 of 9
Put a small heat sink on it and then top it off with an 80mm fan like the amd guys use to cool their vrms
post #5 of 9
Thread Starter 
To be more precise here is the pic . Yellow circle shows the faulty chip and green circles shows the components that are heating due to it. They are for its voltage regulation i guess.

post #6 of 9
Thread Starter 
Quote:
Originally Posted by Poisoner View Post

Put a small heat sink on it and then top it off with an 80mm fan like the amd guys use to cool their vrms

My country is really really short on thermal pads man i mean u wouldn't believe redface.gif

Will try something tomorrow and update the thread.

I really want if someone would help me to somehow cut the chip's power or something like that ( i didn't find the marvel 88E8056 data sheet anywhere ). If i somehow manage to switch that chip off it would be as good as before no heating components no tension at all
post #7 of 9
I know you want to salvage the board, but you should be aware that failing mobos have a bad habit of taking more expensive hardware down with them.
post #8 of 9
Quote:
Originally Posted by CastleBravo View Post

I know you want to salvage the board, but you should be aware that failing mobos have a bad habit of taking more expensive hardware down with them.

True. It may not be worth trying to save.
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Jarvis
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Pepto Pony
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MrDVR
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G.SKILL Ripjaws V Series 16GB 2x2 Samsung 850 EVO 250Gb SSD Intel 160 Gb SSD Intel 250 Gb SSD 
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Generic DVD-RW 2 x Noctua (NF-P12-1300 )1300rpm Premium Silent... Monsoon 90° Rotary Angle Fitting - 5/8" - Red Bitspower Dual / Single D5 Top Upgrade Kit 100 ... 
CoolingCoolingCoolingCooling
ModMyToys DreamFlex Premium 3/8" ID Tubing Reta... Coolance Liquid Coolant Bottle, 700mL Fluoresce... Coolance PMP 450 Variable Speed D5 Pump Bitspower D5 Mod Top V2 Pom version 
CoolingCoolingCoolingCooling
Alphacool NexXxos UT60 Full Copper Radiator 240 Noctua NF-A6X25 FLX Quiet Computer Cooling Fan ... NZXT Sentry Mesh Fan Controller w/ Five 30 watt... 2 x Corsair Air Series SP120  
CoolingOSMonitorKeyboard
COUGAR CF-V12H Vortex Hydro-Dynamic-Bearing  Microsoft Windows 10 Professional Samsung KS8000 4k UHD 65" Microsoft Wireless Comfort 5000 Keyboard and Mouse 
PowerCase
SeaSonic X Series X-850 My TV Stand Cabinet 
CPUMotherboardGraphicsRAM
FX-4300 Gigabyte GA-78LMT-USB3 EVGA Geforce GTX 260 G.Skill Ripjaws X 
Hard DriveHard DriveOptical DriveCooling
Corsair SSD Samsung 7200 Laptop drive Some DVD Burner I took out of a dead Dell. Noctua NH-C12P SE14 
MonitorKeyboardPowerCase
Dell 19" 16:9 Logitec wireless Enermax 650w Apevia X-Cruiser3 Pink 
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post #9 of 9
Thread Starter 
Quote:
Originally Posted by CastleBravo View Post

I know you want to salvage the board, but you should be aware that failing mobos have a bad habit of taking more expensive hardware down with them.

Quote:
Originally Posted by wizardonthejob View Post

True. It may not be worth trying to save.

I agree too. But there are so many cases on the internet about the on board LAN fried and yet the rest of the system working fine. However i think no one touched the Ethernet controller after it was fried or they would have found the same that its burning hot although every thing seems fine and PC run flawlessly.

Same is the case with mine. I have decently overclocked q6600 @3.4 ghz and a HD 5770 @1 GHz Clock and memory @ 1340. I dnt get BSOD lag or any thing at all.

BTW i added a big FAN custom made to blow air all over the board . M a top notch Ghetto modder biggrin.gifbiggrin.gif



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