no PC told at all no OS told either. sure a DESKTOP sure.
no monitor told nor cable used, VGA, DVI,hdmi, DP
i can not see your near black screen at all. cold booted is the PC splash screen dead./?
all bios screen dead and all BIOS works even with HDD missing.
idle black is sleep mode, a USA law mandates that.
iof we do not like sleep mode we disable it in power settings CP
CP means control panel
this must be your first PC ever? and all go to sleep ,go to walmart see them all in sleep mode now, yes, a USA law called Energy star laws. and all wake up on demand new , unmolested.
wiggling the mouse or hammering the space bar ends sleep but not if (again) power settings has USB going to sleep too.
why post lacking Pc makers name and OS.windows what
gee vast persons on earth ugraded w7 top 10 and now this fails.
due to , PC maker told you , no w10 support in this secret PC
4 decades of 100,000 models of PC I can no no guess blind./
Radeon hd 7770 card and 80watt card in fact, oops.?????
is this real ATI/AMD card or any of the other 12 makers of cards.
??????????? no full card number told and guess what the watts matter.
250watts is smallest watt PSU, or more if PC is loaded out like mine with 2SSD and 4 SSD and 1DVD and 1 Blue ray and max ddr and more. Power is first after fit, and yours fits so power is next
PSU watts and what the card needs let me see that.
all hits on this card show it crosses the magic 75watt rule for PCi-2 power of 75watts, and card is 80watts and more dynamically
so they maker of the card has a 6 pin 12vdc aux jack that can not be ignored or the card fails, so is that wired up? as it must?
yup top rear of card 6 pin aux power in black , steathy that, hard to see at 1st glance but 80watt cards need it, that and even 300watts cards are sold.
does your card have red fan.
see what I mean buy 12 maker of cars all with AMD GPU.
the cards all have tag called the SKU tag or full model told
for GPU speed and vram sizes and more, lots more.
I have boxes full of old GPU cards here, stored.
some need 500watt more PSU to even begin any 3d mode.
only the SKU matters, wiki SKU.
and what PC this is
and what PSU wattage and if said PSU has the 2 AUX CABLES
WITH DUAL 6/8 Plugs, (PCI-12v) marked. if not we can do adapters easy. ask