freekymachine wrote on 2025-11-19, 18:48:

Hey^^ […]
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Hey^^

Weird..i got another Dual Xeon 603 Rambus Board - that one i just bought (had it on watchlist for like 3 years^^)

Came - ofc without Memriser..... 🙁 - but might gotten one already + some VRM for it somewhere else.

But - i am a bit confused regarding the PSU - it says and seems aswell an WTX like iwill DX400-SN / iwill DP400 / Tyan 2603
But it has an additional connector ; (the one near the AGP & Mem-Riser )

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What is this one - is it really needed for Basic use ?! - or could i adapt it - but would ofc need Pin_Layout.

All i found sofar/have are those 3x pictures from ebay ;

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First 2 ones are actually from the auction - whre you might have been a bit mislead and thought - i get half the machine there ?! - "its on the pictures??" - Half a case, A memriser with some rams - with some PSU plugged into it - only got the Board with CPU ^^

There you can at least see a bit - seems to be 12v/5V and 3.3V only anyway ?!
Just missing this bit of picture to fiddle together, how they are layed out ?!

Anyone got accidently this type of machine/PSU so she/he could check forme ?!

Thx and greetings

....aaaand i got another one - coming up later^^ - Compaq W8000 - also from friend, where the X4000 comes from - there i might need Adapter aswell - different type of WTX - but that ill check tomorrow

The location of the 2 x 5 connector suggests auxiliary voltage support to the slots, particularly the AGP Pro. I've attached the relevant pinout from the board schematic...

PC Hoarder Patrol wrote on 2025-11-20, 02:46:

The location of the 2 x 5 connector suggests auxiliary voltage support to the slots, particularly the AGP Pro. I've attached the relevant pinout from the board schematic...

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Thanks a lot !!!

And i remember you - from i think the iWill DP400 help ?! 😀

Thanks again!!

Also small Update here ;

Quite the ordeal.

A. The Board does not work - seems to have a defect - does power on, immediatly turns off.
-> When you leave away the 8-Pin CPU WTX - it does start - ofc with Hex 00 since CPU's have no power.
-> My WTX Adapter works instant on iWill DP400 and DX400-SN

B. Turns out - the board i did get is not the one seen in the auction - has different serial-number (aswell some other tiny different details)
-> Can be even seen on my pic (the wooden floor) vs the the pic taken from the ebay-auction where everything is plugged in
-> Did get my money back from ebay / had ok contact with the seller - but he had obivosly problems with translation
-> was even allowed to keep the board - is now sent in to friend who will try to take a deeper look

C. The additonal 10-Pin i put together - thx again @PC Hoarder Patrol - seems fine - nothing exploded^^

Will dig out post, when board comes back, maybe with bit luck functional - no idea what happened to the board - wouldnt be surprised if they plugged in normal ATX Power and fried something - yet i couldnt find any defects there - capacitors, voltage regulators, ground - all was fine sofar.

Never heard of WTX but when searching "msi 6508" the 1st thread that came up was on msi forum about power supply.

https://forum-en.msi.com/index.php?posts/61260/

WTX is basically only ;

iWill DP400 / DX400-SN & DF400-SN / Tyan 2603 [IBM Intellistation] / MSi MS-6508 [HP X4000]

Was like a new wanted PSU Standard for "Workstation-ATX" - style...godbless didnt stick 😀
Board like Supermicro P4DC6+ just uses good old fashioned ATX

Can be easy adapted - for a time you cpould even buy finished adapters from WTX to ATX and ATX to WTX
Re: iWill DP400 Dual Socket 603 Mainboard - it wont start at all.

I dont know the posters knowledge level but in the last post what was said intrigued me.

The NMB supply in question (the only one MSI will recommend to use for the MS-6508 mainboard) fits neither of these three categories. It has a single 24 pin connector - but the pinout's are NOT the same as for an EPS12V supply. In fact the pinout's on the NMB supply don't match any of the three standards mentioned above! Not the 24 pin connectors, nor the first 20-22 pins... they are basically COMPLETELY different... and if you were to connect any of the three standard supplies mentioned above in all cases you would have +ve voltage connecting to ground, and control lines either not connected, connected to ground, or to +ve voltage <<< ALL BAD!!!