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04-22-2021 08:06 PM - edited 04-22-2021 08:37 PM
I have a Z840 with the following specs:
- 1 CPU E5-2680 v4 on Socket 0
- 128GB DDR4 RAM on slot 1,2,3,4 for 1 CPU config
- AMD Raedon R7770 on slot2 (CPU0 3x6)
- The Power supply passed the BIST test (solid green LED and fans on)
The system can power on but it does not seem to boot. All fans are on, Fan on VGA card is also working.
There is no signal on the monitor. No beep, Front and rear LED are solid white.
Here are what I tried:
- Remove all RAM and turn it on => Beep 5 times, and red LED flashing
- Put the RAM back, remove VGA card and turn it on => Same behavior when the VGA was plugged in (Power on, fans on, no beep, white LEDs)
- Try with other VGA cards (Quadro NVS 295, Quadro FX380): Same behavior with the R7770
Can you please help me find out what could be the issues with my WS?
Does Z840 support non-HP VGA cards like mine?
04-22-2021 09:04 PM
since all of the cards you have tried are non UEFI.......................IE-older Legacy bios cards that should give you a major clue!!!
while the z840 does support both legacy or UEFI for video it's a one or the other selection in the bios
i recommend you do a clean "factory" bios reset as this will cause the default video setting to become legacy
note that simply pressing cmos reset is not a clean factory reset, all that does is load in the users custom default settings
for clean factory, remove pwr cord press pwr button till light/beeps stop
remove side cover, remove cmos batt and press cmos reset button 5 sec
reinstall cmos batt/side cover,pwr cord and power on then enter bios and set time/date and any other options
DO NOT SET UEFI FOR VIDEO, LEAVE AT LEGACY
04-26-2021 12:26 AM
if you started a bios recovery, you may have corrupted the existing bios
to many people think a bios flash/recovery will fix anything when in actuality all it does is cause another issue due to the partial flash causing a bios issue
at this point you might want to consider having a HP authorized repair shop look at it
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