HP Z220 SSF Boot Issue

[DGroves]

the HP manual refer s to it (Jumper #29) because the location does exist acording to your statement

there is a world of diffrence between "does not exist" and the location exists but the 2 pin header is not soldered in

since ER15 does exist but lacks the 2 pin header, you can take it to a local repair shop and have it installed for a small fee

once done you can try a recovery

i do not own a z220 so i cann't confirm that  jumper 29 is the one needed for recovery, but where i live a local repair shop will charge about 40/60 US dollars to remove the board, install the jumper and replace the board. they also will not give any warranty on the work other than it will power up and off just as it did when brought in

[PaulDSouthAfric]

With all due respect, I beg to differ.

If reference is made to a jumper, the jumper pins must exist in order to be called a jumper.

Case #1:  The documentation for the HP Z420, Z620 & Z820 all refer to a similar E15 where a jumper (i.e. 2-pin header) actually exists.

Case #2:  If I make reference to a pier being present over a beach it's not good enough to only have the foundation present.  The pier itself must be preset to call it such.

As a side note, it turns out that the BIOS itself wasn't the issue.  The PC screen remain blank (no video output), no sound, not LED signals.  The problem was the DIMM sockets.  If only DIMM socket #0 was populated the PC would boot up.  Populating any of the other DIMM sockets (in any combination) would cause the PC to "play dead".  All DIMMS themselves are working 100%.

[sleepymel3863]

Actually, I'm still not sure what the issue is. Finally got around to checking the ATX PSU with adapter out, and it is still the same. No matter if I have no RAM slots populated or 1-4 slots (tried every possible config) it still does not power on. The led between the RAM slots marked aux lights when power is connected, but that's it. No lights on power button, no beeps when no RAM installed, it's dead. Probably gonna see if I can locate another motherboard and swap everything over.

If I can find a board (in my price range) that will fit a standard case, I'll probably just buy a case and be done with the SFF case. I guess this will open up for a higher end GPU since Turing is coming out and last gen stuff will be coming down in price.

I will post again when I get another board and make sure it was the board before making as solved. Hopefully it helps someone in the future.

[DGroves]

since the board is dead, soldering a two pin jumper is moot, but your aurgements about how the two missing pins soldered into the  boards existing Jumper #29 are not a valid comparision in my opinion

just because the 2metal pins are not soldered into Jumper #29's location does not make that location nonexistant

the two metal pins simply make it easer to connect/short those two traces on the board you could in practice use two probes connected by a wire and acheive the same result, or you could solder a brige wire between the pads both of the above methods acheive the same result as soldering in the pins and placing a jumper on it (IE-connecting the traces)

while i understand you are unhappy about the non working board and the fact that you may have to solder a two pin header on the board also makes you unhappy, it does not and will not change the fact that the location exists and the nessary jumper header can be installed at Jumper location #29

If/when you buy a new board you may wish to have the jumper installed on the new board if it's lacking before installing it.

last, as i have mentioned here before the HP power supply is non standard, and does not follow the ATX pinout connecting a ATX power supply to a z220 may cause damage to the board or power supply. there are however premaded adapters for using a ATX supply in the z240, google for them

[sleepymel3863]

I think you are confusing my replies with the other person who was having a similar issue (and should have started their own thread).

I agree with you regarding the jumper (after coming back to it with a fresh mind, was customer unit and mission critical, ended up building custom machine to replace it with) and I did use the adapter (thanks for the link) when connecting the ATX PSU, and verified voltages before connecting to the board.

I used this diagram to compare my voltages coming from the adapter, connected to the PSU. The only thing that happens, is the LED between the RAM slots will light when the PSU power is switched on, otherwise the system is not responsive. Since the system was not responsive prior to this, it was worth trying to see if it could be revived.

I am only invested $62 (3rd party PSU and Adapter) for the machine, so sourcing another board would still be cost effective, whether or not I use the factory board or find a 3rd party one and use a different case. It's now turned into a low budget (sub $250 range) project, but I'm still interested in fixing the original (if possible) so more information is out there for the next person who finds this thread.

Any future replies I make will be in great detail so as to not confuse anyone who is not following along and I will not assume that anyone replying will have read the full thread to know what has been covered already.

[DGroves]

to sleepymel3863

this board simply adds new posts in decending order,  so the reader must  keep track of what reply goes to what post 

not ideal, but that's the way this site works.

my reminder to readers about the need for a specific hp power supply was just that, a reminder it was not directed to anyone specific

sorry for the confusion

and yes, due to how the site works, i also think paul should have started a new thread

you might want to see if a z420 v2 (or a v1 board) system is worthwhile buying compared to a z220 board only

[sleepymel3863]

@DGroves

You think I can squeeze a z420 board in this chassis? Does the 420 have a more standard PSU or is it similar? I'll be doing some research, and report back to the thread with my findings.

[DGroves]

in my previous reply i stated buying a z420 "SYSTEM" not a motherboard might be cost efective depending on the z220 motherboard cost/availability

i don't think a z420 will work in a z220 case as most current HP workstations use punched out I/O panels in the back of the case instead of the  replaceable I/O panels found on most consumer systems and 3rd party cases.

a z420 system came with a 400 watt supply, with a 600 watt unit as a option

i don't own either model, so i can't comment any further on if the case  or board swap is pratcial