Other Mac Pro Intel Desktop 2009 - With Chime, No Display (Black Screen)

[Gunthar]

I’ve been trying to get this working for some time but gave up. Now I’m back at it because this desktop was such an amazing setup.

Issue: Black Screen / No Display

Chime at Starup?: YES

Removed GPU (ATI 5770)
Removed RAM (3 sticks. Zero Sticks = White blinking power button / 1 stick = Nothing / 2 sticks = 2 green blinks on wireless keybord repeating. / 3 sticks = nothing)

I’ve tried NVRAM reset via keyboard shortcuts and unplugging power supply.

I’ve tried cleaning.


This all occurred when screen went black randomly. Then it came back, no issues.

Then I tried to factory reset it. Perma black screen. (In the beginning I could turn it on and sometimes get lucky with display)

To eventually no display no matter my efforts.

In the beginning I noticed my gou fan not spinning to the fullest capacity.

But now after 5 months of waiting and trying again- it spins.


I’m about to throw my gpu board into the oven 😂- I’ve seen it work for a handful.

I believe this is a gpu problem.

Any tips?

 

[Wowfunhappy]

Have you tried replacing the GPU?

 

[Gunthar]

Have you tried replacing the GPU?

I have not.

I have to buy one- but the question is

What’s the cheapest one I can get? Should I get the same ATI Radeon 5770?

Or is there something else I should get.

This is a workstation PC (software development, social media marketing, etc)

So I won’t be gaming!