Shuttle XPC SD30G2B (FD30 motherboard)

[tweak]

I just acquired a Shuttle XPC SD30G2B from a lot of assorted parts off craigslist and the system does not power up. The flex atx power supply isn't the problem since doesn't power up using a full sized atx psu. The previous owner say it just stopped powering up a few months ago.

It's a FD30 rev 1.x board. Only one capacitor that has signs of failure (slight puff). I'm planning on replacing it and others identical.

Has anyone had experienced or comments on this board?

[Uranium-235]

Re: Shuttle XPC SD30G2B (FD30 motherboard)

just because other ones aren't bloated dosen't mean they're good

do you know what brand they are?

[tweak]

Re: Shuttle XPC SD30G2B (FD30 motherboard)

The bad one is green OST 10v 1000uf, there are total of 8.
Other brands of the bigger caps are KZJ, KZG, and RLX.

[shovenose]

Re: Shuttle XPC SD30G2B (FD30 motherboard)

KZJ/KZG should all be replaced. They often fail without bloating. RLX is made my OST I think and OST is just so that should be replaced. Also check the PSU for bad caps.

[locololo]

Re: Shuttle XPC SD30G2B (FD30 motherboard)

Hi tweak, i have to FD 30´s on hand both with the same 38 failure on my postcode-card, which cpas did you replace, or better asked do i have to replace all of them for being sure !

[Stingerrray]

Re: Shuttle XPC SD30G2B (FD30 motherboard)

Any News on this. I have the exact same board and could use expert help too. Did you notice there were 2 types of 10V 1000uf caps on the board? There are a total of 8. Can the same replacements be used for both they look exactly alike. But have diff letters on them.

Thanks,
Stingerrray

[momaka]

Re: Shuttle XPC SD30G2B (FD30 motherboard)

Replace all OST caps on this board. Note that there are different series of OST. There's:
* OST RLP and RLG ---------> replace with Chemicon KY or KZE, Nichicon HE or HD, Rubycon ZL or ZLH, or Panasonic FR and FM

* OST RLS ---------> replace with Chemicon KZE, Nichicon HD, Rubycon ZL or ZLH, or Panasonic FR and FM

* OST RLX ---------> replace with Nichicon HM or HN or HZ, Rubycon MBZ or MCZ, or polymers if around CPU VRM.

As for the KZG and KZJ - those are made by United Chemicon, which is a good brand of capacitors. But those two particular series, the KZG and KZJ, are known to fail often. So it is highly recommended to replace those too. Use same replacements as for OST RLX.

[Stingerrray]

Re: Shuttle XPC SD30G2B (FD30 motherboard)

Thanks for the help!

Is there any difference between the O714 RLP and the O652 RLP. Both are marked 10v 1000uf .Take a look at the attachment. You can see the middle RLP bulging at the top. Its right in the path of the Northbridge fan air exhaust . Prolly the cause for failure. I'll replace those 3 and see what happens.

Thanks,
Stinger

[pfrcom]

Re: Shuttle XPC SD30G2B (FD30 motherboard)

Is there any difference between the O714 RLP and the O652 RLP

Year & week date codes - 14th week of 2007 and 52nd week of 2006

Unusual for a board to have capacitors with that much age difference, unless one's a replacement - perhaps something to do with a holiday period close to production date

[momaka]

Re: Shuttle XPC SD30G2B (FD30 motherboard)

Is there any difference between the O714 RLP and the O652 RLP. Both are marked 10v 1000uf .

Other than the date code differences that pfrcom mentioned - no. The caps have the same specs.

I'll replace those 3 and see what happens.

That's fine, but I recommend you get replacements for all of the larger OST capacitors on the board (anything rated at 330 uF and above). If you end up replacing those 3 caps and the motherboard works, then definitely go ahead and replace the rest of the OST capacitors. Otherwise, be prepared to tear down the PC again sometime in the future. OST caps rarely last in anything.

[BigTroll]

Re: Shuttle XPC SD30G2B (FD30 motherboard)

Thanks for the help!

Is there any difference between the O714 RLP and the O652 RLP. Both are marked 10v 1000uf .Take a look at the attachment. You can see the middle RLP bulging at the top. Its right in the path of the Northbridge fan air exhaust . Prolly the cause for failure. I'll replace those 3 and see what happens.

Thanks,
Stinger

quoting this post since the pic has the exact same bloated cap as my SD30G2B has, I replaced the whole group of 3 with nichicon HM, but still get no boot out of mine any other thoughts?
Also wanted to point out the northbridge isn't getting hot even with the fan connected and the ram feels cold too, thought those would be warm with it sitting there.

[momaka]

Re: Shuttle XPC SD30G2B (FD30 motherboard)

@ BigTroll: check all of the voltage rails are present. Not just on the PSU, but the board itself. Namely, find and check CPU V_core, CPU Vtt, RAM Vdd, RAM Vtt, NB/SB Vcc (could be more than one rail, depending on design), and any other regulators you find.

[Dan81]

Re: Shuttle XPC SD30G2B (FD30 motherboard)

I feel like the 0652 OSTs are fake. Most RLP I've seen in that size were either Blue/Gold and Black/Gold, while these are green.

[BigTroll]

Re: Shuttle XPC SD30G2B (FD30 motherboard)

@ BigTroll: check all of the voltage rails are present. Not just on the PSU, but the board itself. Namely, find and check CPU V_core, CPU Vtt, RAM Vdd, RAM Vtt, NB/SB Vcc (could be more than one rail, depending on design), and any other regulators you find.

im gonna sound like a noob but how would you check those? I have a harbor freight multimeter so i imagine ground black to the case but how would you know where to probe? to find each item, again the ram feels cold like its getting no power at all.

[momaka]

Re: Shuttle XPC SD30G2B (FD30 motherboard)

im gonna sound like a noob but how would you check those? I have a harbor freight multimeter so i imagine ground black to the case but how would you know where to probe? to find each item, again the ram feels cold like its getting no power at all.

Yes, black lead on multimeter goes to ground / black wire of PSU. And red lead you measure whatever voltage you're after.

Post a picture of the board here. Should be able to help you find some of these.

CPU V_core can be measured at one of the inductors near the CPU
RAM Vdd/V_dimm ... depends on the board. Some use buck-type (same as CPU VRM - just measure at inductor near RAM if there is one), while others just use a linear regulator.
Most other rails are linearly generated by MOSFETs or standard 1084/1117 linear regs.

Here are some different motherboards I made diagrams of that might help if you're trying to learn how to find voltages on motherboards:
https://www.badcaps.net/forum/showthread.php?t=63041
https://www.badcaps.net/forum/showthread.php?t=63163
https://www.badcaps.net/forum/showthread.php?t=63164
https://www.badcaps.net/forum/showthread.php?t=63069

[BigTroll]

Re: Shuttle XPC SD30G2B (FD30 motherboard)

Yes, black lead on multimeter goes to ground / black wire of PSU. And red lead you measure whatever voltage you're after.

Post a picture of the board here. Should be able to help you find some of these.

CPU V_core can be measured at one of the inductors near the CPU
RAM Vdd/V_dimm ... depends on the board. Some use buck-type (same as CPU VRM - just measure at inductor near RAM if there is one), while others just use a linear regulator.
Most other rails are linearly generated by MOSFETs or standard 1084/1117 linear regs.

Here are some different motherboards I made diagrams of that might help if you're trying to learn how to find voltages on motherboards:
https://www.badcaps.net/forum/showthread.php?t=63041
https://www.badcaps.net/forum/showthread.php?t=63163
https://www.badcaps.net/forum/showthread.php?t=63164
https://www.badcaps.net/forum/showthread.php?t=63069

Thanks for the help, I did end up finding another board and shoved it in my shuttles case but someday I will get around to testing this one.