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HP X4000 / Wont boot - Possible MemRiser defect

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First post, by freekymachine

Posted on 
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Heyo.

I got from a friend a non-working X4000 here.
The Mainboard is an Tyan s2603 - WTX PSU like iWill DX400 [ also in Fujitsu Siemens Celsius ] / DP400 and the MSI 6508 [IBM Intellistation ]

orig PSU is not existant - i have build an Adapter for WTX - also thanks to this community here 😀
Still have it - and it still serves and works well^^

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Now - i tried to boot up the X4000 - but nothing happens - No Fan-Spin, no hexcode, no beep - only colorcode possibly Red-Red-Yellow-Yellow - depends how you hold the Panel.
Most points either to "replace system Board" - Or Ram not found -> also possibly "change Memriser"

While cleaning the Board and Memriser i saw some white/crusted stuff on the backside on 4,5 Pins of the Memriser-Port - doesnt look serios, nothing burned - one wipe with isopopanyl and it was gone (should have taken picture)
And on the the Memriser i saw it was soldered on - 5x capacitors were exchanged.

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Looks ok done - but still ?! - are those even the right ones ? - 2x are even too small from radius - And which ones were original there ?
The picture from retroweb is ofc high-quality - from above...
https://theretroweb.com/motherboards/s/tyan-s2603

Someone accidently has this system/Memriser and could tell me what should be originally there ?

Thanks & greetings

Reply 1 of 1, by freekymachine

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Also update here ;

Sadly no progress rly made.
Besides - thanks again to the same guy who got me the W8000 PSU + someone else who had the orig MemRiser, who could give me the orig capacitor layout.
+ Info - that the Board should power on even without the MemRiser anyway - but then beep over pc-speaker - which the system coudlnt even go to.

A. The capacitors are all correct - besides 2x used bit small radius
B. Could find 2x maaaybe defects on the board, but far away, not regarding anything specific or important.
C. The one it belongs to decided for now to put it away, not to try repair it, since he has now at least 1x working Xeon 603 Rambus System [the w8000] - so 2nd is for now not so important.
-> instead he got over another friend of mine an XW8000 Board - which is also Tyan - so he will put this board in his X4000 and make XW8000 out of it

But will keep this a bit tracked - maybe i get myself one day an X4000 Board + Riser 😀

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