• crushed capacitors on 8500gt
    36 replies, posted
So my friend brought to me this gigabyte 8500GT card for me to repair he got it from his cousin and I have no idea how they managed to crush those capacitors under the heatsink at least I think those are capacitors [img]http://i.imgur.com/ozkWa.jpg[/img] I was thinking just putting some wires over it and hope it will work, cause the card is already fucked
how do you even do that what the hell
The only 'repair' you can do for that card is to bin it. EDIT: Yes, I know the caps can be replaced, but I doubt anyone can easily replace SMD caps.
Those relly look like SMD resistors. There are very hard to replace but it can be done. You do need the corect resistance tough. Next to the resistors is a voltage regulator replacing the resistors with a wire could cause overvoltage in whatever it connects to. The actual capacitor looks fine actually. Edit: Just read the codes attached to it: They are SMD capacitors. Changing them with a wire would cause some unstable voltages but it might work. [editline]30th January 2012[/editline] This could be the ones you need: [url]http://nl.farnell.com/multicomp/mcca001207/capacitor-0805-x7r-10v-100pf/dp/1856401RL[/url]
i tried with the wire. and it wouldnt even start, so i removed the wire and put the card in the oven it's working now but has major stability issues
Loks like you'll have to replace the caps then. If you've got a good iron i'd try those SMD caps linked above. If not try to find some 10 volt 100 pico-farad elctrolytic caps and put them on. You might run into clearence issues if you stick them right on and bolt the heatsink on, so running leads to them and locating them aways away might be your best bet. I wish you luck with soldering leads to surface mount pads though, it's a bitch.
Also don't forget to check the polarization of the pads.
Why don't you just get a new card...?
Just get a new card, they're $30 on Amazon. The oven fix is a temporary solution, but it will eventually fault so much that it will be just a fancy paperweight.
[QUOTE=taipan;34461972]Just read the codes attached to it: They are SMD capacitors. Changing them with a wire would cause some unstable voltages but it might work.[/QUOTE] You should NEVER replace a ceramic capacitor with a wire jumper, VERY bad things are guaranteed happen. And for future reference since you seem to have no idea what you're talking about: Component labels starting with "L" are inductors. Labels starting with "R" are resistors. Labels starting with "C" are capacitors. Replacing any of those parts with any other part (IE. replacing an inductor with a capacitor) will cause VERY bad things to happen. Another thing to note is that not all capacitors have polarity. Ceramic capacitors (the ones missing on the card) are one of the types that don't have polarity and can be installed either way. Electrolytic capacitors DO have polarity though and installing a lytic backwards will cause it to explode. [QUOTE=QuAtT;34463136]i tried with the wire. and it wouldnt even start, so i removed the wire and put the card in the oven it's working now but has major stability issues[/QUOTE] [B]DO NOT SHORT CERAMIC CAPACITOR PADS[/B]. You will destroy anything downstream of the capacitor. The reason the card is having major stability issues is because either you fried part of the GPU by feeding it trash voltage, or because the power MOSFETS (the large black squares with two legs) aren't able to provide power to the GPU since the circuit is broken. You need to find some ceramic capacitors to replace the ones that were broken off. The easiest source for them is probably Mouser. You can generally find what you need by measuring the distance between the contact pads and looking for ceramic capacitors of similar size. You could try scavenging ceramic caps off a dead motherboard, but they likely won't have a high enough farad rating, though you could try doubling them up (using 4 or 8 instead of two.) Though, I'd go with the Mouser route, ceramic caps aren't hard to get.
[QUOTE=Somebody_404;34472084]Why don't you just get a new card...?[/QUOTE] This.
[QUOTE=Somebody_404;34472084]Why don't you just get a new card...?[/QUOTE] Do you buy a entirely new car when the wiper blades break?
[QUOTE=B!N4RY;34475574]Do you buy a entirely new car when the wiper blades break?[/QUOTE] Wiper blades are easy to change and require no skill whatsoever.
Also have you tried to use the cards as the way it is? Often times, missing a small component or two like coupling capacitors will not result in any dysfunctional effects that is noticable or significant. However there are no guarantees on knowing what those specific capacitor are for. [editline]31st January 2012[/editline] [QUOTE=jip;34475585]Wiper blades are easy to change and require no skill whatsoever.[/QUOTE] And neither are resoldering 1206 SMDs if you have slight experience in soldering
[QUOTE=B!N4RY;34475619]Also have you tried to use the cards as the way it is? Often times, missing a small component or two like coupling capacitors will not result in any dysfunctional effects that is noticable or significant. However there are no guarantees on knowing what those specific capacitor are for. [editline]31st January 2012[/editline] And neither are resoldering 1206 SMDs if you have slight experience in soldering[/QUOTE] Even with soldering experience it is a pain, more annoying and tricky then difficult.
I can say the same thing about replacing wipers if I have no clue what I'm doing. Dual lead SMDs, especially large ones like the missing compoents in the OP, are not tricky to solder at all.
Eh true, each to their own.
[QUOTE=B!N4RY;34475574]Do you buy a entirely new car when the wiper blades break?[/QUOTE] When the car is falling apart and barely able to get you from point A to point B.
I would much rather buy a Ferrari then replace wipers on a junky honda civic, the 8500GT is very shitty and it isn't worth repairing from a technical standpoint when you could buy a used 8800GT for about $20.
[QUOTE=bohb;34474145] And for future reference since you seem to have no idea what you're talking about: Component labels starting with "L" are inductors. Labels starting with "R" are resistors. Labels starting with "C" are capacitors. [/QUOTE] Jezus christ are you always such a dick? Chill out. Annyways thanks for the info.
[QUOTE=B!N4RY;34475574]Do you buy a entirely new car when the wiper blades break?[/QUOTE]No, I do replace my car when components that are vital to the continued function of the car start falling out and the car lacks the horsepower to properly move around the loads I require it to move. Also when newer cars are relatively inexpensive, more powerful and more efficient.
[QUOTE=QuAtT;34463136]i tried with the wire. and it wouldnt even start, so i removed the wire and put the card in the oven it's working now but has major stability issues[/QUOTE] Nothing t see here anymore guys. He's already effectively destroyed the card. If not by the uninformed repair then by the uncontrolled reflow. I'm quoting this in the CIPWTTKT thread. That one post alone was possibly the most painful thing I have heard all week.
the card was pretty much fukced from the beggining, so i just thought i can play with it i got some capacitors and solder tzhem on, and the card is now pretty stable unless i start some heavy dx9 program it's actually pretty funny how much these cards can handle
[QUOTE=taipan;34476863]Jezus christ are you always such a dick? Chill out. Annyways thanks for the info.[/QUOTE] I really don't think I've ever seen you post anything even remote to good advice on a wide variety of subjects. Most of the stuff I've seen you post is terribly misinformed or outright wrong. Your above post was a perfect example of this, you had no idea what it was and just said the first thing that came to mind, then corrected it later [U]after[/U] you did some pseudo-research on the subject, but you were still mostly wrong. You also didn't remove the part that said it was a resistor, further making your post more confusing. In a different scenario if the guy hadn't already baked or jumpered the card and he put a resistor on those pads, it would have fried the card and it would have been your fault for giving bad advice. Seriously, if you don't know what you're talking about, don't post anything.
[QUOTE=bohb;34483828]I really don't think I've ever seen you post anything even remote to good advice on a wide variety of subjects. Most of the stuff I've seen you post is terribly misinformed or outright wrong. Your above post was a perfect example of this, you had no idea what it was and just said the first thing that came to mind, then corrected it later [U]after[/U] you did some pseudo-research on the subject, but you were still mostly wrong. You also didn't remove the part that said it was a resistor, further making your post more confusing. In a different scenario if the guy hadn't already baked or jumpered the card and he put a resistor on those pads, it would have fried the card and it would have been your fault for giving bad advice. Seriously, if you don't know what you're talking about, don't post anything.[/QUOTE] ok dude there's no denying you know your shit but you don't have to be so dickish about it
[QUOTE=Protocol7;34484396]ok dude there's no denying you know your shit but you don't have to be so dickish about it[/QUOTE] If it was my card that could have gotten fried due to bad advice, I would have no issues with him being dickish about it, as long as it keeps my card alive.
[QUOTE=Protocol7;34484396]ok dude there's no denying you know your shit but you don't have to be so dickish about it[/QUOTE] I'm not waving my dick about what I do or don't know, I'm just sick of him posting terrible advice. I never post advice about things I know absolutely nothing about and I think most everyone should do the same.
What does 'baking' the card do?
[QUOTE=Smoot;34485237]What does 'baking' the card do?[/QUOTE] It's a gimmick way to "reflow" the solder balls under the GPU. It only works temporary because the temperature in a oven gets nowhere hot enough to actually melt solder, it only warps it.
You rate me a dumb because I asked an honest question? Sometimes it's more trouble fixing said item than to go out and buy a cheaper and better item. Aren't 8500's outdated anyway?
Sorry, you need to Log In to post a reply to this thread.