Create an account on the HP Community to personalize your profile and ask a question
04-29-2021 02:32 PM
I have some quesstion regarding HP z420 .I have z420 motherboard version 1 with Intel xeon e5-2690 ver 1 and also with RAM's.
I want turn on it ,but I don't have the Hp z420 power supply. Instead I have z400 power supply, and connected it with 24 ->18 adapter to z420 motherboard and I have checked the pinout of adapter and board, all are right.This power supply fully works with z400.
When I turned on the z400 power supply without connected z420 board,I listen just one clicking voice from inside of supply and the coller of supply starts to run.
When I connected this supply to z420 board It doensn't works.I listen constantly clicking voice from inside of supply and coller of supply doesn't works.
Also I have checked short circuit between board pinout powers to GND.All is ok.
Maybe the wattage is low,as this power supply is 475W and the +12V wattage is about 456W ?
Could you please help ?
Thanks in advance.
04-30-2021 10:01 AM
the HP z400 power supply is NOT ATX COMPATIBLE the 24 pin connector does not match the ATX 24 pin out
the power supply adapters/ converters for the z400/z420 are different and not interchangeable
you are currently shorting both the z400 power supply and the z420 motherboard and this will cause damage to both
buy a z420 adapter AND A STD ATX (not z400) Power supply
one last bit of info, avoid those cheap no name power supplies or those 700 watt for 30.00 units
05-01-2021 05:07 PM
If the intention is to have a usable workstation, consider selling everything and buying a working z420 with a Xeon v2. The complications of matching proprietary parts, and the cost of an additive system part by part is a considerable additional effort and expense. Starting with a working system, it's possible to have use of it almost right away and improve it gradually.
Purchased for $136:
HP z420_3: (Original) Xeon E5-1607 v2 (4-core / 4 Thread @ 2.8GHz) / 4GB (1X 4GB DDR3-1866 ECC unbuffered / NVIDIA GeForce 7100 GS / WD Blue 500GB / 400W PSU > Windows 7 Professional 64-bit (HP OEM )
[Passmark System Rating: = 569 / CPU = 5492 / 2D = 538 / 3D = 60 / Mem = 1117 . Disk = 864 ] [Single Thread Mark = 1509 9.27.17
And, about $450 of mostly used parts later:
HP z420_3: (2015) (R12) Xeon E5-1650 v2 (6C@ 4.3GHz) / z420 Liquid cooling / 64GB (8X 8GB HP DDR3-1866 ECC registered / NVIDIA GeForce GTX 1060 6GB/ Samsung 860 EVO 500GB + HGST 4TB / / 600W PSU > Windows 7 Professional 64-bit (HP OEM )
[Passmark System Rating: = 5637 / CPU = 15217 / 2D = 776 / 3D = 10923 / Mem = 2901 Disk = 5163 /Single Thread Mark = 2382 [4.30.21]
The v2 version Xeon E5's have higher clock speeds, supports more cores, and should be useful longer as well.
HP z620_2 (2017) (R7) > Xeon E5-1680 v2 (8C@ 4.3GHz) / z420 Liquid Cooling / 64GB (HP/Samsung 8X 8GB DDR3-1866 ECC registered) / Quadro P2000 5GB _ GTX 1070 Ti 8GB / HP Z Turbo Drive M.2 256GB AHCI + Samsung 970 EVO M.2 NVMe 500GB + HGST 7K6000 4TB + HP/HGST Enterprise 6TB / Focusrite Scarlett 2i4 sound interface + 2X Mackie MR824 / 825W PSU / Windows 7 Prof.’l 64-bit (HP OEM) > 2X Dell Ultrasharp U2715H (2560 X 1440)
[ Passmark Rating = 6280 / CPU rating = 17178 / 2D = 819 / 3D= 12629 / Mem = 3002 / Disk = 13751 / Single Thread Mark = 2368 [10.23.18]
Didn't find what you were looking for? Ask the community