VOGONS


First post, by mavenjava678

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Hello,
my TUSL2 v1.03 board is outputting 4.0v for the 3.3v rail (verified with a multi meter)
Upon close inspection I realized that this resistor "r269" is knocked off the board. This resistor is apparently
part of the feedback circuit to the buck controller according to boardview, but the boardview file does not have the correct resistor values.

Can someone help me identifying the resistor value / marking for the resistors circled here in red ?
in particular R269 .

Thanks

Reply 1 of 6, by Horun

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When I get home will check the CUSL-2, it has same ram VRM stuff as CUSL afaik.

Hate posting a reply and then have to edit it because it made no sense 😁 First computer was an IBM 3270 workstation with CGA monitor. Stuff: https://archive.org/details/@horun

Reply 2 of 6, by zuldan

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mavenjava678 wrote on 2024-11-01, 18:03:
Hello, my TUSL2 v1.03 board is outputting 4.0v for the 3.3v rail (verified with a multi meter) Upon close inspection I realiz […]
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Hello,
my TUSL2 v1.03 board is outputting 4.0v for the 3.3v rail (verified with a multi meter)
Upon close inspection I realized that this resistor "r269" is knocked off the board. This resistor is apparently
part of the feedback circuit to the buck controller according to boardview, but the boardview file does not have the correct resistor values.

Can someone help me identifying the resistor value / marking for the resistors circled here in red ?
in particular R269 .

Thanks

Here you go. Happy to get any other images you need.

The attachment A0DDAB3A-354D-437D-A578-1649459E2341.jpeg is no longer available

Reply 3 of 6, by Horun

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As a double check here is another picture. It is a 16k ohm (1 -6-000 ohms).

Hate posting a reply and then have to edit it because it made no sense 😁 First computer was an IBM 3270 workstation with CGA monitor. Stuff: https://archive.org/details/@horun

Reply 4 of 6, by mavenjava678

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Thank you very much @zuldan and @Horun

Reply 5 of 6, by PC@LIVE

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Interesting, who knows if for some overclock you can use a different resistance value, to have 3.5V for example, probably the overclockers will be very happy with this news.

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Reply 6 of 6, by weedeewee

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PC@LIVE wrote on 2024-11-02, 09:06:

Interesting, who knows if for some overclock you can use a different resistance value, to have 3.5V for example, probably the overclockers will be very happy with this news.

Better to look at the datasheet for the HIP6012CB and find the correct resistor(s). don't just go on a hunch.

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