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Asrock b450 pro4 + Ryzen 5 3600, Problem! help!!!
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GO2019 View Drop Down
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    Posted: 22 Oct 2019 at 8:43am
Please see the video I posed on the youtube : https://www.youtube.com/watch?v=ymQ2ONKB_N4

The symptom is: CPU and power supply keep rebooting but there is nothing displaying on the monitor after I jump the "power on" two pings. We have tested the memory with another system, they are fine. We have tried three power supplies. Same thing. We have returned and replaced both CPU and motherboard. Still the same. What can be wrong? Please advise. Thanks a lot!

Btw, the CPU fan is just a temp solution.It is small but has four pin connector and was a CPU fan for some old system.

Right now we are using on-board HDMI for display but I have tried the dedicated video card, no difference.

Also there is no hard drive connected but that does not matter, since at least we should see the booting page and bios.

Did we miss something stupid??? This happened to anyone here?

Please help! Thanks a lot!
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GO2019 View Drop Down
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Points: 10 		Post Options Post Options   Thanks (0) Thanks(0)   Quote GO2019 Quote  Post ReplyReply Direct Link To This Post Posted: 22 Oct 2019 at 11:21am
update, I realized that there is no GPU with CPU. So I installed a dedicated low profile video card. Here is the video https://www.youtube.com/watch?v=Ljski7h7Fqs.
However, it still shows the same rebooting thing and there is no display on the monitor. Sad!
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gizmic View Drop Down
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put rams on a2 and b2

only 2 things i can think of

1 its doing ram training
2 bios is not updated
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Originally posted by GO2019 GO2019 wrote:

update, I realized that there is no GPU with CPU. So I installed a dedicated low profile video card. Here is the video https://www.youtube.com/watch?v=Ljski7h7Fqs.
However, it still shows the same rebooting thing and there is no display on the monitor. Sad!

And sad that there is not much too see.
- I cannot really see a video cable at the graphics card
- I cannot see a keyboard connected
- But i can see: RAM is placed in A1/B1 instead of A2/B2

You should try it with one stick in A2 first.
And than make a CMOS Reset and restart.
And wait, wait, wait, longer as you think you have to wait.
If nothing changes after several minutes (say max. 15 min), it is probably what gizmic already posted: Bios too old for the Ryzen 5 3600
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Make sure your GPU is properly seated. It is easy for it to pop up out of the
slot when bench testing if the board isn't elevated or on the edge of the table
etc. The PCI bracket extends lower than the board sits.

Only connect the GPU, power, CPU and one stick of RAM. Make sure all connections
are secure and you have an 8pin (4+4) power connector hooked up not a PCIe (6+2).
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GO2019 View Drop Down
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Points: 10 		Post Options Post Options   Thanks (0) Thanks(0)   Quote GO2019 Quote  Post ReplyReply Direct Link To This Post Posted: 22 Oct 2019 at 11:06pm
Hi guys, thank you very much for your kind help. I have shorted CMOS for 7 hours. And then put memory in A2 slot (single memory). I tried this morning. It still does not work. Now the only thing I have not tried is the bios update. But how can i update the bios without getting the booting page? I have checked, this MB does not have flash bios button (physically). Is there any other way to do it? Thanks a lot!
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Points: 86 		Post Options Post Options   Thanks (0) Thanks(0)   Quote kschendel Quote  Post ReplyReply Direct Link To This Post Posted: 26 Oct 2019 at 12:49am
No, the only way to update the BIOS is to have a processor that works with the existing BIOS rev. Ideal would be a 1st gen Ryzen. AMD do have an upgrade loaner program that you might look into. Other options are find someone to borrow a CPU from, or worst case buy a 1200 CPU, do the upgrade, then sell it.
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