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Broken HD4870, help needed!

post #1 of 6
Thread Starter 
Hy all,

on my HD4870 card one part is broken, and i dont know is that an smd or something other...I also need the parameters (amper, volt etc) of that component because maybe I can order the same and solder it on the card. On the picture you can see the broken part in the yellow circle.

Bytheway, the card wont boot up, I got the red led D601 error, which I know that is critical core error.


post #2 of 6
Looks like a resistor, but could really be anything. If the card is hosed, and outside of warranty, then by all means proceed. Unsolder the part from the board so you can measure it with a multimeter. Also, take a good look at the part to see if there's any discernible markings. They use a somewhat cryptic code for marking SMT parts, but a bit of Googling can usually help to ID them from the part code.

Good luck. I hope you have a good temperature controlled soldering iron with a fine tip, a solder sucker, and a friend to grab the part with a pair of tweezers. Sometimes helps to add a bit of solder to the joint before sucking. Careful about overheating neighboring components.
post #3 of 6
Thread Starter 
Quote:
Originally Posted by TLHarrell View Post

Looks like a resistor, but could really be anything. If the card is hosed, and outside of warranty, then by all means proceed. Unsolder the part from the board so you can measure it with a multimeter. Also, take a good look at the part to see if there's any discernible markings. They use a somewhat cryptic code for marking SMT parts, but a bit of Googling can usually help to ID them from the part code.

Good luck. I hope you have a good temperature controlled soldering iron with a fine tip, a solder sucker, and a friend to grab the part with a pair of tweezers. Sometimes helps to add a bit of solder to the joint before sucking. Careful about overheating neighboring components.

Thanks but it doesnt have any marking on it...I was googleing it but with no luck...
post #4 of 6
To check it's resistance, you'll need to take it out of the circuit. Beyond that, there are ways of testing to get the values of other types of parts. I'm not a total electronics expert though, so couldn't give you a tutorial. That part is likely a resistor or capacitor. It's part of the power handling to each of the VRMs. Either way, I'd pull the part if you're brave enough to mess with it.
post #5 of 6
Thread Starter 
Quote:
Originally Posted by TLHarrell View Post

To check it's resistance, you'll need to take it out of the circuit. Beyond that, there are ways of testing to get the values of other types of parts. I'm not a total electronics expert though, so couldn't give you a tutorial. That part is likely a resistor or capacitor. It's part of the power handling to each of the VRMs. Either way, I'd pull the part if you're brave enough to mess with it.

Well, I guess I dont have any other choice. Will update soon the thread.
post #6 of 6
That looks alot like a ceramic capacitor, In which case you'd need a multi-meter to measure its capacitance. Unfortunately they are unmarked, making it hard to source out:S
Old Puppy
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i5 2500K gigabyte z68A-D3H-B3 XFX HD6870 1GB 8GB G.Skill Ripjaws 
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Old Puppy
(13 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500K gigabyte z68A-D3H-B3 XFX HD6870 1GB 8GB G.Skill Ripjaws 
Hard DriveOSMonitorPower
120GB Kingston HyperX Win 7 ultimate x64 Benq G2222HDL XFX PRO650W Core Edition 
Case
NZXT Whisper 
  hide details  
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