Hello. Anyone got some documentation to 20-pin power connector on this board? I think its not standard. I have connected normal PSU but then LEDs by voltage regulators blinks red color and thats all, so i think wiring is wrong. Wasted a lot of hours to find pinout but can't find it. Anyone can help?
Most of those compaq's servers of that era are like this for 20pin: https://old.pinouts.ru/Power/compaq_psu_pinout.shtml
Also 8pin PSU AUX connector can also have odd pinouts but is generally same as all ATX. Grounds are easy to find with a good DVM and tracing the +12v and +5v too thru the PCI slots.
Is that one of those combo Video + SCSI cards?
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
Don't know why, but i saw this site couple times while searching but didt try that connection. Gona try this in a moment cose im fighting with this board all day now
Also you can pull one of the VRM's and check which PSU are connected to 5v and 12v as Intel has strict VRM socket pinouts if you use an Intel CPU or chipset....
Being a Slot 1 Pentium 2 or 3 You can check the pdf below. P2 and P3 VRM are different than Pentium VRM's (Pentiums have 3.3v lines and no 12v, P2 and P3 use only 5v and 12v).
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
Partially succeded, got leds on board, but not all. I was connecting one by one to check what gona happen. Got lights like on the picture but disconnected wires number 4, 9, 17, 18, 19, 20. When i connect them like on a picture u have written something shorts and psu goes safety mode and have to reset it. Between 18-com and 19-com i got measured 5v, but if i connect, lights goes off. Green LED by VRMs sometimes turns on, sometimes goes off.
On board i got 2x PIII 733. This monster I/O have only 1 SCSI connector.
I gona fight more tomorrow cose its 4am here and have to sleep lil bit.
Oh and forgot. Ive measured that place where have to connect power button and leds. Got 5volts in 2 places and 3,3 on one place. When i connected leds theyre on (i found some in trash-mix- box). Shorting 0-3,3 gives no reaction.
getbeter wrote on 2023-04-09, 02:16:Partially succeded, got leds on board, but not all. I was connecting one by one to check what gona happen. Got lights like on t […]
Partially succeded, got leds on board, but not all. I was connecting one by one to check what gona happen. Got lights like on the picture but disconnected wires number 4, 9, 17, 18, 19, 20. When i connect them like on a picture u have written something shorts and psu goes safety mode and have to reset it. Between 18-com and 19-com i got measured 5v, but if i connect, lights goes off. Green LED by VRMs sometimes turns on, sometimes goes off.
On board i got 2x PIII 733. This monster I/O have only 1 SCSI connector.
I gona fight more tomorrow cose its 4am here and have to sleep lil bit.
Oh and forgot. Ive measured that place where have to connect power button and leds. Got 5volts in 2 places and 3,3 on one place. When i connected leds theyre on (i found some in trash-mix- box). Shorting 0-3,3 gives no reaction.
Probably need to remember that this system board likely connected to its original redundant PSU(s) through a power distribution circuit, so you'll maybe also need pinouts & connections here as well
Hard to find much info on the connectors on DL380, did find the Gen1 "setup and installation guide" from 1999.
Noticed in the Compaq archives the P17 bios code for it also applies to the ML370 and from the manuals appears to be same motherboard (exact same layout pictures), used as DL Rack mount and one as ML tower.
added: SW1 looks correct for 733Mhz, and SW2 #3 Off since you are setting it as a Rackmount. Did you try it "on" ? just curious
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
No i didnt try that.
Today psu i connected died ( by ma fault) and now got only one without -12v... Waiting for another one in 2-3 days cose i need it anyway to something else.
I'll try set that switch tomorrow and check anything change.
Now i have connected like this:
1- +3,3
2- gnd
3- gnd
4- gnd
5- gnd
6- gnd
7- gnd
8- gnd
9- ?
10- ?
11- +3,3
12- ?
13- +12
14- gnd
15- +5vsb
16- +5
17- +5
18- +5
19- ?
20- ?
With this, i have stable PGOOD on vrm's. When i connect 10 and 20 (theyre bridged) i got error on both vrms. Need to connect -12, -5, PS_ON and maybe something more. (beside this im not sure this is a right connection)
All PCI have -12v, it is pin B1. back of the slot toward back of computer. Looking down first pin on left side from back. You should be able to use an ohm meter from one to the psc 20 pin and find it, do not think any components on board use it (well maybe onboard video). Not sure what on board would use the -5v.....
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
Keep in mind:
I have over several months investigated the practicality of playing with cheap server boards especially vintage, which I discovered has lot more going on to become fully functional state. The stumbling part is front panel and some of them actually needed original power supply due to signal interface in use. This was prevalent in vintage servers.
Even the current server boards, you need complete set to make this work. Best off just buy complete machine or just don't bother. A server is heavy, large and awkward to ship.
Cheers,
Great Northern aka Canada.
@pentiumspeed i understand. In real i bought it quite cheap, got only board, processors, ram, riser and i/o card - nothing more. At first i wanted it only to take out pentiums to collection but if theres any way to run dual board - why not. I always wanted to have xp with two processors showed in task mnager... Just for fun, just to have, probably (80%) not to use it. For me dual slot 1 just looks lil crazy hehe. To store with other stuff i started to collect. Even if i fail with this - its not problem. Why not to try if got nothing to lose 😀 Got another intel mb dual pIII s370 (G7ESZ) which is working but got some smb errors. If i fail with this compaq then i try to remove errors on that intel. Im not newbie in computers but newbie in retro and any type of servers. I wanted just to collect processors but this hobby is so interesting and satisfaing... Ahh im writing to much offtopic :p Probably i gona fail to run it but better to work with it than wasting time watching some Shorts or another rubbish in net..
Yeah I remember this: NEC Proserva V Plus (dual socket 7 system) (have a lead on multiple of these)
This dual is sorta similar in that the PSU, Front Panel, etc are not standard. Lucky a few of us got them and collaborated to get them up and running 😀 Fun times !!
You have a good chance of getting it running IF you can figure out the PSU (or just buy one, seen them for about $35 thay are the 275 watt ones), then you just tackle the other stuff....
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
getbeter wrote on 2023-04-10, 01:21:@pentiumspeed i understand. In real i bought it quite cheap, got only board, processors, ram, riser and i/o card - nothing more. At first i wanted it only to take out pentiums to collection but if theres any way to run dual board - why not. I always wanted to have xp with two processors showed in task mnager... Just for fun, just to have, probably (80%) not to use it. For me dual slot 1 just looks lil crazy hehe. To store with other stuff i started to collect. Even if i fail with this - its not problem. Why not to try if got nothing to lose 😀 Got another intel mb dual pIII s370 (G7ESZ) which is working but got some smb errors. If i fail with this compaq then i try to remove errors on that intel. Im not newbie in computers but newbie in retro and any type of servers. I wanted just to collect processors but this hobby is so interesting and satisfaing... Ahh im writing to much offtopic :p Probably i gona fail to run it but better to work with it than wasting time watching some Shorts or another rubbish in net..
The DL380 G1 maintenance and service guide proved no more helpful for pinouts than the setup and installation guide @Horun mentioned earlier (linked then both just in case something comes to mind), but what it did list is the power cabling kit p/n in question (pictured).
setup and installation guide - https://web.archive.org/web/20060306050043/ht … _120133-002.pdf
maintenance and service guide - https://web.archive.org/web/20060715121626/ht … _136363-004.pdf
PC Hoarder Patrol wrote on 2023-04-10, 03:11:The DL380 G1 maintenance and service guide proved no more helpful for pinouts than the setup and installation guide @Horun menti […]
The DL380 G1 maintenance and service guide proved no more helpful for pinouts than the setup and installation guide @Horun mentioned earlier (linked then both just in case something comes to mind), but what it did list is the power cabling kit p/n in question (pictured).
Compaq Power cable kit (327919-001).jpg
setup and installation guide - https://web.archive.org/web/20060306050043/ht … _120133-002.pdf
maintenance and service guide - https://web.archive.org/web/20060715121626/ht … _136363-004.pdf
Nice work ! I could not get the maint manual to DL but your link works and the pic of the cable assy is great. Thanks !
Yeah some of those old server PSU used some odd communication cabling to motherboard that w/o the PSU and cable are very difficult to figure out.....
added: did you notice same board appeared to be used in CL380 ? That odd dual board in a huge cube shaped case thingy? 😁
forgot: The board SW1 settings are here: https://community.hpe.com/hpeb/attachments/hp … 93/1/294479.doc (ms word .doc)for those wanting to change processors. The same board was used in ML370 and CL380...
quick converted to pdf and attached...
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
Horun wrote on 2023-04-10, 03:28:Nice work ! I could not get the maint manual to DL but your link works and the pic of the cable assy is great. Thanks ! Yeah som […]
PC Hoarder Patrol wrote on 2023-04-10, 03:11:The DL380 G1 maintenance and service guide proved no more helpful for pinouts than the setup and installation guide @Horun menti […]
The DL380 G1 maintenance and service guide proved no more helpful for pinouts than the setup and installation guide @Horun mentioned earlier (linked then both just in case something comes to mind), but what it did list is the power cabling kit p/n in question (pictured).
Compaq Power cable kit (327919-001).jpg
setup and installation guide - https://web.archive.org/web/20060306050043/ht … _120133-002.pdf
maintenance and service guide - https://web.archive.org/web/20060715121626/ht … _136363-004.pdf
Nice work ! I could not get the maint manual to DL but your link works and the pic of the cable assy is great. Thanks !
Yeah some of those old server PSU used some odd communication cabling to motherboard that w/o the PSU and cable are very difficult to figure out.....
added: did you notice same board appeared to be used in CL380 ? That odd dual board in a huge cube shaped case thingy? 😁
forgot: The board SW1 settings are here: https://community.hpe.com/hpeb/attachments/hp … 93/1/294479.doc (ms word .doc)for those wanting to change processors. The same board was used in ML370 and CL380...
quick converted to pdf and attached...
Yeah, I spotted that too, with the switchblock settings effectively deciding which model (chassis / riser combo) the board was in!
This listing has some good clear pics of the hot-plug power supply backplane board, where the other ends of the cable kit are designed to plug - https://www.ebay.co.uk/itm/233665193199
PS signalling & control is clearly centred on the bottom connector but its anyones guess exactly how?
Sadly, i killed one capacitor. The one by pin 14. Have no more power for now to replace it and try to go forward, cose im not sure i didnt killed something on board. I think not, cose its still givin Leds errors on vrms like before when i connect any voltage to pin 20 so diagnosis is working.. tried to take wiring from pictures u sended here, but still cant figure out couple of pins. I see 1,11,12 is group 1, 2to9 is group2, 13to16 group 3, 19and20 group 4. Another ones are singles i think but cant solve it for now..
