Boot Issue - First Build

[NoviceBuilt]

Boot issues: Will not boot with GPU in. No fan ramp up. PSU seems to click on it's relay but nothing further.   My CPU does not have it's own graphics. System will boot without GPU, but since no graphics I am light on info I can provide to troubleshoot. Looking at indicator lights, they all cycle through when I turn on without the GPU. Obviously when they cycle through once; the VGA indicator comes on since no ability to output. I am struggling to find reading materials on how to troubleshoot further from here. I have qflash'd the system to the latest bios. Do I need to do anything additional or download anything in order to allow the motherboard to function with the GPU? Motherboard B760M C (1.0) BIOS Ver: F9 GPU Brand: ASUS GPU: 4070 OC CPU: 15 12600kf Operating System: Windows 11 Brand: Corsair Size: 32 gb Power Supply: Corsair 750w

[Robchil]

9 minutes ago, NoviceBuilt said:

Boot issues: Will not boot with GPU in. No fan ramp up. PSU seems to click on it's relay but nothing further.   My CPU does not have it's own graphics. System will boot without GPU, but since no graphics I am light on info I can provide to troubleshoot. Looking at indicator lights, they all cycle through when I turn on without the GPU. Obviously when they cycle through once; the VGA indicator comes on since no ability to output. I am struggling to find reading materials on how to troubleshoot further from here. I have qflash'd the system to the latest bios. Do I need to do anything additional or download anything in order to allow the motherboard to function with the GPU? Motherboard B760M C (1.0) BIOS Ver: F9 GPU Brand: ASUS GPU: 4070 OC CPU: 15 12600kf Operating System: Windows 11 Brand: Corsair Size: 32 gb Power Supply: Corsair 750w

have you tested the GPU in another system? 

[NoviceBuilt]

1 hour ago, Robchil said:

have you tested the GPU in another system? 

No other system to test. This is my first build. 

[Robchil]

9 minutes ago, NoviceBuilt said:

No other system to test. This is my first build. 

no friends have a pc?

[Godlygamer23]

Have you tried testing any of the other display outs on the graphics card?

[NoviceBuilt]

27 minutes ago, Robchil said:

no friends have a pc?

Not anything that is this generation. Plus they are pre builds they don't wanna mess with. 

[Robchil]

ok.. back to your question... you usually don't have to enter anything just the monitor cable into the gpu not the mainboard for it to work.

 

can you take a picture of your build? so we can see if it's anything obvious? 

 

[Godlygamer23]

2 hours ago, NoviceBuilt said:

Not anything that is this generation. Plus they are pre builds they don't wanna mess with. 

Do you have all of the power cables plugged into the graphics card? 

[Whatisthis]

Are you using display port or HDMI? 
 

For whatever reason, display port sometimes doesn’t want to output until you install the OS. Use HDMI at first.

[NoviceBuilt]

Have tested display port. No difference in boot. 

 

In the bottom right of my board is what I assume is an independent head spreader for the Intel b760 mobo chipset. 

 

When I unboxed this motherboard. One of the anchoring points from that heat spreader had come out in shipping and I assume that heat spreader "slid and flopped" around a bit on top of that mobo chipset. I found the spring to push the pin back in thru mobo. I couldn't really asses underneath that head spreader for damage and had no idea what it was at the time so didn't think much of it. But my question - is it possible if that mobo chipset experienced damage that the CPU would not be able to communicate with the GPU? 

[NoviceBuilt]

2 minutes ago, NoviceBuilt said:

Have tested display port. No difference in boot. 

 

In the bottom right of my board is what I assume is an independent head spreader for the Intel b760 mobo chipset. 

 

When I unboxed this motherboard. One of the anchoring points from that heat spreader had come out in shipping and I assume that heat spreader "slid and flopped" around a bit on top of that mobo chipset. I found the spring to push the pin back in thru mobo. I couldn't really asses underneath that head spreader for damage and had no idea what it was at the time so didn't think much of it. But my question - is it possible if that mobo chipset experienced damage that the CPU would not be able to communicate with the GPU? 

Also shout out GameStop for the clearance sale got a display port cable for under $4 

[NoviceBuilt]

On 1/6/2024 at 7:00 PM, Robchil said:

ok.. back to your question... you usually don't have to enter anything just the monitor cable into the gpu not the mainboard for it to work.

 

can you take a picture of your build? so we can see if it's anything obvious? 

 

My bad didn't see your response. Attached are the images. I have had to dismantle most of it to make room for the day while I work from home. 

 

Running into some confusion around these psu cables and there various confusing connectors for "8pin". Also would love to know the significance of the GPU female psu connector have the conjoined boxes in upper left. Very much so second guessing myself and if I used the correct connector or if the correct connector is even included in my psu cables. 

 

Lastly the last image is that motherboard chipset heat sink cover that I mentioned in my other comment. That top right bracket was missing when I unboxed it and I did not asses for damage before putting it back together. 

[Robchil]

there are three kind of cables with 8 pins female.... the CPU/EPS, and PCIE.. the CPU/EPS you can split in 2 bricks of 4 pins each.. the PCIE you can split into one 6 pin and one 2 pin,  on your PSU side they both use the same connector as you see and also 8 pins.. but not splittable, it's marked PCIe/CPU...

 

other side should be branded CPU or EPS, and PCIE.. and be splittable, i've seen both CPU and pcie cables that are not splittable, but the keying inside the female and male are different. so they shouldn't be able to use them wrong...  except the cpu...  ... the 8 pin not splittable is used on a 4 pin correctly with either sides inserted.. and i've seen someone put the middle of a pcie in it instead.. ...

 

so all cables should have writing on the contacts.. saying pcie, cpu or eps, and psu for the psu side. here it's important to read and understand the manual actually..  if you do it wrong it's a risk of shorting something...

 

AND to the next part of the fun... pin out on the PSU side is NOT standardized... so to be safe, never mix and match modular PSU cables between  PSU's..  that can lead to short's too.. as in short circuit and frying your mainboard GPU or sata powered devices. 

 

it doesn't look like you have a CPU/EPS cable connected on your pictures. it should be in the corner above the cpu and external ports. 

 

[NoviceBuilt]

24 minutes ago, Robchil said:

there are three kind of cables with 8 pins female.... the CPU/EPS, and PCIE.. the CPU/EPS you can split in 2 bricks of 4 pins each.. the PCIE you can split into one 6 pin and one 2 pin,  on your PSU side they both use the same connector as you see and also 8 pins.. but not splittable, it's marked PCIe/CPU...

 

other side should be branded CPU or EPS, and PCIE.. and be splittable, i've seen both CPU and pcie cables that are not splittable, but the keying inside the female and male are different. so they shouldn't be able to use them wrong...  except the cpu...  ... the 8 pin not splittable is used on a 4 pin correctly with either sides inserted.. and i've seen someone put the middle of a pcie in it instead.. ...

 

so all cables should have writing on the contacts.. saying pcie, cpu or eps, and psu for the psu side. here it's important to read and understand the manual actually..  if you do it wrong it's a risk of shorting something...

 

AND to the next part of the fun... pin out on the PSU side is NOT standardized... so to be safe, never mix and match modular PSU cables between  PSU's..  that can lead to short's too.. as in short circuit and frying your mainboard GPU or sata powered devices. 

 

it doesn't look like you have a CPU/EPS cable connected on your pictures. it should be in the corner above the cpu and external ports. 

 

Yea I unplugged and dismantled most of the system to make room and to further second guessing myself on the psu cables. 

 

With my psu I have two 8 pin CPU labeled chords. I have one labeled pcie that is the 6+2 to 8 pin

 

Then I have dual 6+2 pin to 8 pin. Which is correct for my psu to GPU? Also thank you for your help. 

[Robchil]

5 minutes ago, NoviceBuilt said:

Yea I unplugged and dismantled most of the system to make room and to further second guessing myself on the psu cables. 

 

With my psu I have two 8 pin CPU labeled chords. I have one labeled pcie that is the 6+2 to 8 pin

 

Then I have dual 6+2 pin to 8 pin. Which is correct for my psu to GPU? Also thank you for your help. 

Correct, your GPU needs PCIe cable, and your CPU the CPU cable, they will both connect to the same bank in  your PSU that says PCIe/CPU..  so looks the same but are not the same on device side. 

 

some mainboards have 2 CPU connectors.. some one.. either can be 4 or 8 pin. some has one of each. depending on how much power it requires. 

 

some GPU's  have 1 6 pin.. or 1 8 pin. some have one of each, both of mine have 2 8 pin.. i've seen cards with 3 8 pin connectors too.. it all depends on how much the card can draw and the PSU can deliver. 

 

one PCIe 8 pin connector can deliver 150watt.. but the PSU can deliver ca 250watt.. i think the 6 pin is around 85 watt. some cables have 2 6+2 pin connectors at the device end.. also called pigtails.. for a card with 2 8 pin ports one cable might not deliver enough power as they can draw 300watt but the PSU can't deliver more than 250ish. for lower cards.. like x050 - x070 that might be enough.. they would have 6+8 pin sockets on the GPU.. if a GPU has 2 8 pin connectors i would always recommend using 2 separate cables from the PSU.. 

you tho have only 1 8 pin, but it's good to know if you upgrade in the future.

 

 

[NoviceBuilt]

14 minutes ago, Robchil said:

Correct, your GPU needs PCIe cable, and your CPU the CPU cable, they will both connect to the same bank in  your PSU that says PCIe/CPU..  so looks the same but are not the same on device side. 

 

some mainboards have 2 CPU connectors.. some one.. either can be 4 or 8 pin. some has one of each. depending on how much power it requires. 

 

some GPU's  have 1 6 pin.. or 1 8 pin. some have one of each, both of mine have 2 8 pin.. i've seen cards with 3 8 pin connectors too.. it all depends on how much the card can draw and the PSU can deliver. 

 

one PCIe 8 pin connector can deliver 150watt.. but the PSU can deliver ca 250watt.. i think the 6 pin is around 85 watt. some cables have 2 6+2 pin connectors at the device end.. also called pigtails.. for a card with 2 8 pin ports one cable might not deliver enough power as they can draw 300watt but the PSU can't deliver more than 250ish. for lower cards.. like x050 - x070 that might be enough.. they would have 6+8 pin sockets on the GPU.. if a GPU has 2 8 pin connectors i would always recommend using 2 separate cables from the PSU.. 

you tho have only 1 8 pin, but it's good to know if you upgrade in the future.

 

 

Thank you. So to confirm the attached 6+2 cable is what I need to use? It is the only one labeled pcie? Also does it matter that one hole on the 8 pin psu side is missing the inside housing? 

[Robchil]

14 minutes ago, NoviceBuilt said:

Thank you. So to confirm the attached 6+2 cable is what I need to use? It is the only one labeled pcie? Also does it matter that one hole on the 8 pin psu side is missing the inside housing? 

correct.. 

the cpu cable probably have all pins filled, and all pcie cables don't.. 

and if you count the cables in the ribbon you might see why

 

if you find the other pcie cables have all 8 pins filled.. i would use those.. havn't had time to check but the 2 pin part is usually ground and a power.. some manufactures cut it down to one ground on the other side. 

 

[NoviceBuilt]

11 minutes ago, Robchil said:

correct.. 

the cpu cable probably have all pins filled, and all pcie cables don't.. 

and if you count the cables in the ribbon you might see why

 

if you find the other pcie cables have all 8 pins filled.. i would use those.. havn't had time to check but the 2 pin part is usually ground and a power.. some manufactures cut it down to one ground on the other side. 

 

I love you. I think I've dismantled my system 10 times and I think it was the dang psu cables that I had mixed up so glad I didn't break anything. It posted. You are a king. Where do donations and gifts go? 

[Robchil]

2 minutes ago, NoviceBuilt said:

I love you. I think I've dismantled my system 10 times and I think it was the dang psu cables that I had mixed up so glad I didn't break anything. It posted. You are a king. Where do donations and gifts go? 

Congrats..  no clue.. we do it because we know and you don't

we started at the same place and started learning like you have now

 

[Godlygamer23]

1 hour ago, NoviceBuilt said:

I love you. I think I've dismantled my system 10 times and I think it was the dang psu cables that I had mixed up so glad I didn't break anything. It posted. You are a king. Where do donations and gifts go? 

You're lucky that it's still working. I wouldn't bank on this every time. Things can go wrong very easily, and it's critical it's done correctly. 

 

Not harping on this - just stressing the importance of getting it right. 

[Whatisthis]

Now you know. CPU plugs into motherboard by CPU. PCIE plugs into GPU.

 

The reason for the PCIE 6+2 config is that some older cards used a 6 pin instead of 8 pin connector. Now they are pretty much standardized to the 8 pin. 
 

On the cpu side, some boards use only a 4 pin, some an 8 pin, and some even 12 pins. Depends on how beefy the board power delivery is.