X1950 XTX - missing SMDs \ VOGONS

X1950 XTX - missing SMDs

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First post, by Shader_BiH

Shader_BiH Offline

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Hi folks. Recently I purchased an X1950 XTX. Although it looked examplary at first, once it arrived I noticed two missing SMDs on the back.

The card appears to be working fine though. I am a bit worried about pushing it too much with benchmarks as I don't know what these two are for exactly. Can anyone help me identify these two elements? Are they vital for stable operation and is it even safe to use it like this?

Thanks 😃

Last edited by Shader_BiH on 2026-05-04, 18:14. Edited 1 time in total.

Reply 1 of 2, by tehsiggi

Posted on Yesterday, 17:50

tehsiggi Offline

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They are part of the VRM, the one lonely one might be bootstrap for one of the VRMs itself.

Zuldan has the same card, he might just be able to measure them for you.

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Reply 2 of 2, by tehsiggi

Posted on Today, 08:46

tehsiggi Offline

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Just took a second look at the PCB pictures from the front. The "lonely" cap is nowhere positioned to be a bootstrap cap for any of the FETs or drivers imho, so I'd assume you're fine with it missing. However it's far from optimal of course. If you have the means, desolder one of the other "lonely" ones (like C2034) and measure it, it is going to be the same value as your missing C2537. Same for C2546, just measure it's neighbor when removed from the PCB and you'd be good. Voltage wise you can carefully measure what's going on there, but I'd assume 25V type ceramics should be fine (keep in mind the capacitance degradation of ceramics when DC biased).

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