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Looking for help finding a replacement for this little guy.
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Looks like a voltage regulator in a SOT23-6 package. If you knew voltage, current requirements and stuff you might be able to find something equivalent.
Edit: just to be clear, it could be something else too, like a optocoupler or something. But voltage regulator makes sense with the placement and components around it.
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Not visible perfectly from the image but it looks like the pads of the footprint are actually gone. I.e. you only see the FR4 material of the pcb. You can measure this by ringing from the pad to one of the resistors (compare where they go on the ones above). If that's the case you have to solder extra wires from the other components to the IC and solder it in dead bug config. That's hard for such small components but possiblr. With the resistors back and front it might actually be a small mosfet or optocoupler.
If the card still runs you can measure the voltages around the pins. That might give some indication on what the IC does.
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might want to make sure you are able to solder it on there first. IE make sure the pads didn't come off. cause from what im seeing, there are not pads on there.
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It is on a powercolor 5700 xt axrx. I have the ability to solder it but just can not seem to find the component.
ID: gqrxy0nID: gqs0h5fSend an email to powercolor's rma department, pretty sure they will help you out with that.
ID: gqs13prI will give it a shot.
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Here is a few pictures of the same part.
5700 xt
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Not an EE, but all I could discern was that it's a 6-legged SMD transistor (apparently the "Q" label is shorthard for transistor). Not sure what significance the "S1(?)AN" markings have, though.
ID: gqs4qazI think these are some kind of internal markings, other parts have similar convention. Probably hard to examine what part is it without data sheet or BoM
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SMBT3904S
ID: gqsh0ksSMBT3904S
Is that a fact or an educated guess? Type markings from the datasheet look different.
ID: gqtbylphe might be unto something
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Looks like the pads are gone ... You gotta ask yourself is it worth it to repair, sometimes it can be a pain in the but.
引用元:https://www.reddit.com/r/Amd/comments/m408yq/looking_for_help_finding_a_replacement_for_this/
Can you provide a higher resolution image of the broken off part? There is little to no way of telling what it is without someone who has the entire identical card checking themselves.