Knocked off component from GTX 470!!!!

[Footman]

So the kids were fighting the other evening and ticking me off, I was using the kitchen table to replace TIM under the waterblocks of my two GTX 470's and in my haste to deal with the kids I pulled harder than I would have and twisted the second block off the card and in the process knocked of a component!!!

Well my swearing was enough to stop the kids fighting in any event!!!

I put the cards back fearing the worst, but it performs as before even when overclocked. I have seen no problems or issues with the card even though it is missing something!!!

Can one of you gurus take a look at the photo and tell me what the raised component at C98 is supposed to do and what the long term effects of not having it are likely to be???

Thanks in advance... BTW this is one of Wizzards library images that I have used so thanks to him for letting me use the image

 

[hellrazor]

It's a resistor, it resists a certain amount of electricity. My biggest fear is that it would open up a circuit and leave it (the circuit) dead.

But I'm the type to say "run it 'til it don't run no more, then shove it back in there and run it a little longer", so you may not want to take advice from me

 

[Frick]

It's hard to tell what it does exactly, but if it works as before you should be in the clear. If you're handy with a soldering iron you can replace it though.

 

[Footman]

It appears to be working fine, in fact I just hit 40K in Vantage with my i920 at 4.00ghz....

 

[_JP_]

It's a resistor, it resists a certain amount of electricity. My biggest fear is that it would open up a circuit and leave it (the circuit) dead.

But I'm the type to say "run it 'til it don't run no more, then shove it back in there and run it a little longer", so you may not want to take advice from me

No, it's a capacitor. Resistors usually have numbers written on them to identify the Ohms. Caps use the size and color to identify the capacity and the material. Also the component reference on the board says C98, standing for capacitor, if it were a resistor, it would have an R. Not saying it's always like this, but for most of the cases (if not all, really, because it makes it easier) this nomenclature system is applied.

 

[Footman]

No, it's a capacitor. Resistors usually have numbers written on them to identify the Ohms. Caps use the size and color to identify the capacity and the material. Also the component reference on the board says C98, standing for capacitor, if it were a resistor, it would have an R. Not saying it's always like this, but for most of the cases (if not all, really, because it makes it easier) this nomenclature system is applied.

OK, its a capacitor, so what are the long term effects of losing this capacitor?

 

[robn]

No, it's a capacitor. Resistors usually have numbers written on them to identify the Ohms. Caps use the size and color to identify the capacity and the material. Also the component reference on the board says C98, standing for capacitor, if it were a resistor, it would have an R. Not saying it's always like this, but for most of the cases (if not all, really, because it makes it easier) this nomenclature system is applied.

Good answer; also for component labels Q stands for transistor (pnp, npn, FET, etc.), and L for inductor (chokes, coils).

As for effects, a small surface mount cap like this is probably used for filtering of a signal trace, to lessen signal reflections, noise, crosstalk, etc. Whatever it's used for, they are pretty much the only component you can get away with losing ...if it works, you will be fine.

 

[hellrazor]

No, it's a capacitor. Resistors usually have numbers written on them to identify the Ohms. Caps use the size and color to identify the capacity and the material. Also the component reference on the board says C98, standing for capacitor, if it were a resistor, it would have an R. Not saying it's always like this, but for most of the cases (if not all, really, because it makes it easier) this nomenclature system is applied.

*facepalm* I saw that and everything.

OK, its a capacitor, so what are the long term effects of losing this capacitor?

Like I said, a dead circuit. I would go test the crap out of everything and make sure it isn't something important. In other words, go play Crysis for an hour or so then run Kombuster. If nothing freezes or crashes or looks corrupted, it might just be a locked shader core or something stupid like that.

 

[Benetanegia]

Good answer; also for component labels Q stands for transistor (pnp, npn, FET, etc.), and L for inductor (chokes, coils).

As for effects, a small surface mount cap like this is probably used for filtering of a signal trace, to lessen signal reflections, noise, crosstalk, etc. Whatever it's used for, they are pretty much the only component you can get away with losing ...if it works, you will be fine.

Agreed.

 

[Footman]

Good answer; also for component labels Q stands for transistor (pnp, npn, FET, etc.), and L for inductor (chokes, coils).

As for effects, a small surface mount cap like this is probably used for filtering of a signal trace, to lessen signal reflections, noise, crosstalk, etc. Whatever it's used for, they are pretty much the only component you can get away with losing ...if it works, you will be fine.

Ok, makes sense to me, just played 60 mins of Medal of Honor MP, had my ass handed to me but no visual glitches and smooth as silk.....

 

[KainXS]

I've had this happen before to a HD4890 before knocking off a part by accident I could never get it by that 1Ghz barrier but after I knocked a cap off I could get to 1100 on water with a volt mod, I think it was caused simply by cheap parts

 

[Andrea87]

From what I can see off the pcb, thats a capacitor on the imput side of the dcdc converter ("phase") made of Q20-21-22 and L7. Its role here is to provide a better stability on the imput of the converter, but, having other ones very near and well routed on the other phases, even having it off should not be a too big problem.

As example, I've drawn a quick schematic of one of these supplies. you took off c98, as you see c2 and c3 are very near, and should help taking over the missing c98.

 

[W1zzard]

From what I can see off the pcb, thats a capacitor on the imput side of the dcdc converter ("phase") made of Q20-21-22 and L7. Its role here is to provide a better stability on the imput of the converter, but, having other ones very near and well routed on the other phases, even having it off should not be a too big problem.

As example, I've drawn a quick schematic of one of these supplies. you took off c98, as you see c2 and c3 are very near, and should help taking over the missing c98.

http://i51.tinypic.com/6p9ls8.png

that.

it's a capacitor. it is used to stabilize/smooth a voltage, if the card works without it don't worry about it

 

[[I.R.A]_FBi]

lost a cap on a 7900gs, ended up being the best clocking one on tpu, if it works use it

 

[pantherx12]

My 5770 died and took out a psu line when one of these things knocked off.

 

[Footman]

Thanks Guys, capacitor it is and working the card is too.... I sound like Yoda!!!!

Anyhow, I will run the card as is and when and if it breaks I will send it back for repairs.

Cheers,