zahaAAAAAA
New Member
- Total Posts : 4
- Reward points : 0
- Joined: 2020/11/09 16:28:56
- Status: offline
- Ribbons : 0
help me  resistors damaged mozel can be made and which are the resistors to what is the resistance in Ω thanks in advance for the advice
when I clamped the graphics when putting 2 * 8 pin one 8 pin I did not clamp to the end and there was a small spark where the resistors burned out nice greetings
Attached Image(s)
|
zahaAAAAAA
New Member
- Total Posts : 4
- Reward points : 0
- Joined: 2020/11/09 16:28:56
- Status: offline
- Ribbons : 0
|
HeavyHemi
Omnipotent Enthusiast
- Total Posts : 13887
- Reward points : 0
- Joined: 2008/11/28 20:31:42
- Location: Western Washington
- Status: offline
- Ribbons : 135
Re: resistors damaged can be made and which are the resistors to what is the resistance
2020/11/10 14:32:12
(permalink)
zahaAAAAAA
help me
resistors damaged mozel can be made and which are the resistors to what is the resistance in Ω
thanks in advance for the advice
when I clamped the graphics when putting 2 * 8 pin one 8 pin I did not clamp to the end and there was a small spark where the resistors burned out nice greetings
We might be able to look something up but obviously we need the PRECISE MODEL OF THE GPU, so we have an undamaged PCB to compare with.
EVGA X99 FTWK / i7 6850K @ 4.5ghz / RTX 3080Ti FTW Ultra / 32GB Corsair LPX 3600mhz / Samsung 850Pro 256GB / Be Quiet BN516 Straight Power 12-1000w 80 Plus Platinum / Window 10 Pro
|
zahaAAAAAA
New Member
- Total Posts : 4
- Reward points : 0
- Joined: 2020/11/09 16:28:56
- Status: offline
- Ribbons : 0
|
zahaAAAAAA
New Member
- Total Posts : 4
- Reward points : 0
- Joined: 2020/11/09 16:28:56
- Status: offline
- Ribbons : 0
Re: resistors damaged can be made and which are the resistors to what is the resistance
2020/11/10 14:33:54
(permalink)
 thenk
Attached Image(s)
|
HeavyHemi
Omnipotent Enthusiast
- Total Posts : 13887
- Reward points : 0
- Joined: 2008/11/28 20:31:42
- Location: Western Washington
- Status: offline
- Ribbons : 135
Re: resistors damaged can be made and which are the resistors to what is the resistance
2020/11/10 14:52:16
(permalink)
zahaAAAAAA
thenk
I am just about positive those are all shorting bars or zero ohm resistors. And again, when I ask for something I have a reason. I need the PRECISE MODEL OF THE GPU. Personally I'd hit them up on xDevs and ask just to make sure. As you can see they are all bridging across the same circuit direct to the shunt resistor.  If that in fact is the case, the repair (You're out of warranty right?) would be simply in bridging those to pads next to LB14 and LB13 with a copper shunt. LB15 and LB12 don't matter.
post edited by HeavyHemi - 2020/11/10 15:34:03
EVGA X99 FTWK / i7 6850K @ 4.5ghz / RTX 3080Ti FTW Ultra / 32GB Corsair LPX 3600mhz / Samsung 850Pro 256GB / Be Quiet BN516 Straight Power 12-1000w 80 Plus Platinum / Window 10 Pro
|
ty_ger07
Insert Custom Title Here
- Total Posts : 16602
- Reward points : 0
- Joined: 2008/04/10 23:48:15
- Location: traveler
- Status: offline
- Ribbons : 271
Re: resistors damaged can be made and which are the resistors to what is the resistance
2020/11/10 15:20:36
(permalink)
They are inductors, not resistors.
I wouldn't replace an inductor with a shorted jumper link.
I have no idea of their value.
ASRock Z77 • Intel Core i7 3770K • EVGA GTX 1080 • Samsung 850 Pro • Seasonic PRIME 600W Titanium
|
HeavyHemi
Omnipotent Enthusiast
- Total Posts : 13887
- Reward points : 0
- Joined: 2008/11/28 20:31:42
- Location: Western Washington
- Status: offline
- Ribbons : 135
Re: resistors damaged can be made and which are the resistors to what is the resistance
2020/11/10 15:41:54
(permalink)
ty_ger07
They are inductors, not resistors.
I wouldn't replace an inductor with a shorted jumper link.
I have no idea of their value.
If you're assuming 'LB' means inductor, you'd be wrong. L21 would be with an inductor. LB could be their nomenclature for inductor bypass or bus bar. Secondarily inductors of that size and number across the same bridge would effectively be zero resistance, right? Maybe I'm just bored. 
post edited by HeavyHemi - 2020/11/10 15:47:02
EVGA X99 FTWK / i7 6850K @ 4.5ghz / RTX 3080Ti FTW Ultra / 32GB Corsair LPX 3600mhz / Samsung 850Pro 256GB / Be Quiet BN516 Straight Power 12-1000w 80 Plus Platinum / Window 10 Pro
|
ty_ger07
Insert Custom Title Here
- Total Posts : 16602
- Reward points : 0
- Joined: 2008/04/10 23:48:15
- Location: traveler
- Status: offline
- Ribbons : 271
Re: resistors damaged can be made and which are the resistors to what is the resistance
2020/11/10 15:47:28
(permalink)
So, they replaced a large inductor with jumper links? Makes sense. not I would assume that "B" means that it is option B to replace the big inductor with smaller inductors. Not "bypass" but instead option B of the supply chain. You should desolder L17 on your 1080 Ti FE PCB, replace it with a jumper wire, and tell me how well it works.
post edited by ty_ger07 - 2020/11/10 15:58:05
ASRock Z77 • Intel Core i7 3770K • EVGA GTX 1080 • Samsung 850 Pro • Seasonic PRIME 600W Titanium
|
Data1987
New Member
- Total Posts : 97
- Reward points : 0
- Joined: 2020/11/13 10:52:16
- Status: offline
- Ribbons : 0
Re: resistors damaged can be made and which are the resistors to what is the resistance
2020/11/18 20:48:15
(permalink)
man thats an ugly and scary burn
|
HeavyHemi
Omnipotent Enthusiast
- Total Posts : 13887
- Reward points : 0
- Joined: 2008/11/28 20:31:42
- Location: Western Washington
- Status: offline
- Ribbons : 135
Re: resistors damaged can be made and which are the resistors to what is the resistance
2020/11/18 21:55:14
(permalink)
ty_ger07
So, they replaced a large inductor with jumper links? Makes sense.
not
I would assume that "B" means that it is option B to replace the big inductor with smaller inductors. Not "bypass" but instead option B of the supply chain.
You should desolder L17 on your 1080 Ti FE PCB, replace it with a jumper wire, and tell me how well it works.
Why would I desolder an EXISTING component with a relatively large inductance and replace it with zero inductance jumper? Lets not be silly. What do you mean REPLACE? It is not there. Likely due to some board revision. Happens all the time. It makes no sense design wise to replace a large inductance across a plane with several tiny ones doing essentially nothing.  Supply? It would be an entirely different circuit, obviously. Please explain your theory.
post edited by HeavyHemi - 2020/11/18 22:58:19
EVGA X99 FTWK / i7 6850K @ 4.5ghz / RTX 3080Ti FTW Ultra / 32GB Corsair LPX 3600mhz / Samsung 850Pro 256GB / Be Quiet BN516 Straight Power 12-1000w 80 Plus Platinum / Window 10 Pro
|