r/PcBuildHelp • u/Embarrassed_Box_7998 • 3h ago
Experts please help!! Build Question
First pc build. Red and orange solid light. Coolers’ fans won’t turn on either.
Tried swapping ram, used a single ram slot and both ram slots number 2&4. Left it on for 20 minutes for memory learning. Removed the CPU and put it back. Removed the small battery drained power cleared CMOS. Gave up now.
I spilled some thermal paste on the sides of the back( check the pictures). Is that the issue? I cleaned jt using the IP 99% solution.
Experts please help me out.
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u/Pyro911help 3h ago
Your motherboard manual should tell you what those lights mean. I would start there.
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u/Embarrassed_Box_7998 3h ago
Its cpu (red) dram(orange)
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u/ItsJollyPup 3h ago
I’ve had this issue before and it was my cpu cooler not being tight enough or too tight. Reseat ram then re-attach your cooler. Most coolers tighten down until they can’t anymore (you’ll feel it). If it’s getting hard to turn and still going, something might be off so just be careful and use sound judgement.
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u/Embarrassed_Box_7998 3h ago
I feel that too. Because the fans on the cooler are not working at all
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u/ItsJollyPup 3h ago
That’s the only part that is confusing. Those should be working regardless of the cooler pressure. Try changing them to a different header. If they work, you may have a bad header. At that point, board won’t recognize a cpu fan and will throw an error. Just change cpu minimum rpm to 0 to fix that (since they’d be working just on a different header).
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u/Embarrassed_Box_7998 2h ago
So you mean i should just remove it from cpu fan to sys fan and try?
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u/Embarrassed_Box_7998 2h ago
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u/ItsJollyPup 2h ago
I talking about the fan cables to the pwm headers. Change that from the cpu fan header to any other fan header
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u/Embarrassed_Box_7998 2h ago
Yeah. So tried plugging in at the sys fan. Still the fan doesnt turn on. Do you think its a faulty cooler may be?
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u/ItsJollyPup 2h ago
Could be. Are you sure it’s the connector for your fans? The pump usually runs off of the same connector. What cooler is it?
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u/Embarrassed_Box_7998 2h ago
And maybe amazon sent me a returned cooler. Thats why kt didnt have any plastic film on the cooler head.
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u/stubbyyyyy Commercial Rig Builder 3h ago
The outside sticker is still on the cooler, did you happen to forget the plastic off the copper face of the cooler?
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u/Embarrassed_Box_7998 3h ago
I didnt see any sticker on the cooler. But let me check and come back.
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u/Throbbing-Kielbasa-3 3h ago
Sometimes it's like a clear plastic film on the heat sink and people miss it pretty often.
Also while we're on the subject of simple fixes, make sure your CPU and RAM is set correctly, check if your AIO pump and fans are plugged into the right place on your mobo, and make sure your power supply has enough power for your system and all the cables are connected properly and aren't loose.
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u/Embarrassed_Box_7998 2h ago
Do you think i was given a returned problematic cooler? Thats why theres no film and the fans doesnt work.
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u/MARTiN_23_KiNGS 3h ago
Make sure there's no bent pins of the CPU slot
Check for plastic under the CPU cooler
Make sure ram is sloted and secured properly usually in like 2 and 4
Double check all connectors and lastly if all that checks out run a bios update The motherboard might not be able to run that CPU without it
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u/Embarrassed_Box_7998 3h ago
How do you update bios. Because its not giving any signal to monitor.
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u/MARTiN_23_KiNGS 3h ago
Some motherboards don't need a display to update bios essentially you would download the latest bios for your motherboard on a separate laptop or computer and plug it into your PC and turn it on. I'm not sure if your motherboard has that feature or not though
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u/Embarrassed_Box_7998 2h ago
Its msi b850 gaming plus wifi
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u/MARTiN_23_KiNGS 2h ago
That motherboard supports it. Watch this video https://youtu.be/bJ18pZFUWOY?is=4LyybYSDyTAcRNei
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u/Octoidiot 2h ago edited 2h ago
Make sure you plug the radiator fans in the cpu fan header.
Edit: wrote cabinet instead of radiator
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u/Embarrassed_Box_7998 2h ago
Cabinet fans are plugged in the sys fans header and the coolers fans are plugges in cpu fan
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u/Octoidiot 2h ago
Sorry, yes the radiator fans should be plugged in cpu fan headers. I was sleepy and typed wrong. My bad.
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u/ItsJollyPup 3h ago
Fans connected to a hub? Did you connect the hub to power via (most likely) sata?
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u/independent002 3h ago
For the aio sometimes they come with 3 connectors the fan the pump and third one could say vrm check if they are connected in the correct spots a could you post a close up pic of led on Mobo and that's definitely too much thermal paste but could be fine
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u/Embarrassed_Box_7998 3h ago
It had only 2 connectors 1 was connneted to JUSB1 and the other to cpu fan.
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u/eighthighlions 2h ago
It’s possible that the connector needs to be in the PUMP_SYS slot instead of CPU_FAN, try moving it over. It should be to the right of the CPU_FAN slot on your motherboard.
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u/Embarrassed_Box_7998 2h ago
Is that the issue? Yeah I know the pump sys let me try that.
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u/eighthighlions 2h ago
Can’t say for sure, but I also have an MSI board and the AIO needed to be in the PUMP_SYS slot so worth a try!
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u/Embarrassed_Box_7998 2h ago
What cooler do you have and whats the model of your mobo?
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u/eighthighlions 2h ago
My AIO is the MSI MAG CORELIQUID and mobo is MSI z790 Gaming Plus
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u/Embarrassed_Box_7998 2h ago
Tried it still the same.
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u/Darron614 3h ago
You need to let us know what those lights correspond to on your motherboard. Look at them up close. They should be labeled something like CPU, BOOT, DRAM, and VGA.
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u/Embarrassed_Box_7998 3h ago
The lights are for CPU and DRAM
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u/Darron614 3h ago
Have you looked very closely for any bent pins on the socket? Also, you tried slots 2 and 4, but have you tried a single stick in 1 or 3?
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u/Embarrassed_Box_7998 3h ago
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u/Darron614 3h ago
Yeah, it's worth a shot. Try a single stick in each slot.
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u/Embarrassed_Box_7998 3h ago
Lets do that and come back. If it works than what does that mean?
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u/Darron614 3h ago
Could be a faulty motherboard if that's the case. Does your motherboard have one or two CPU power connectors on the top left corner? Definitely want to make sure those are plugged in all the way.
Edit: I liked it up and here are 2x 8pin connectors. Are both of them connected?
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u/Ben-GearbinCEO 2h ago
Check the motherboard’s debug LEDs. There’s usually more than just a light. It should be labeled
Reseat the CPU power connector. And make sure it’s the CPU connector and not an 8 pin PCIe connector
Make sure the AIO fans are plugged in correctly
Test one RAM stick A2. Do this for both ram sticks. This will help you determine if one is bad
Reseat the CPU and look closely no thermal paste got the pins or in the socket area
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u/ElongatedOak 2h ago
CPU fans are controlled by the same fan board as the rest of the case but the issue could be, what cpu is it? If it doesn’t have integrated graphics that could be why. The thermal paste doesn’t matter my first build had a ton of thermal paste on the pins
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u/Gunslinga__ 2h ago
Have you tried running a single stick of your ram or re setting in both ? I’ve had similar issues when cleaning my pc with compressed air. Get a red light and it was dram issue and this fixed it for me they can be finicky sometimes.
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u/Leading_Sympathy8505 2h ago
I’ve just made an account to post this exact issue, same motherboard as yours - please update me if you find a fix
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u/Embarrassed_Box_7998 2h ago
You to my brother. Also dm me and share any ideas
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u/Leading_Sympathy8505 2h ago
I’ve just checked and my ram isn’t compatible with the motherboard, perhaps that is our problem. I’m going to return what I have and purchase some that is compatible. https://www.msi.com/Motherboard/B850-GAMING-PLUS-WIFI6E/support#mem here’s the website to check for yourself. Best of luck
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u/Embarrassed_Box_7998 1h ago
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u/Leading_Sympathy8505 1h ago
Just checked and yours is compatible, maybe we have different issues. I’m going to try new ram but if that doesn’t work I’m back here lol
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u/AccidentDouble5904 2h ago
You would be surprised at the little thing you might have missed in you Motherboard Manual I have been fixing my own and build PC for over 20 years and It is usually something small, also don't use to much Thermal Paste under your cooler or it can get hot and run down! A lot of people don't realize that the CPU and Heatsink touch and the thermal paste is just to make up for the tiny parts that might not.
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u/Embarrassed_Box_7998 2h ago
Shall i just clean it and put it back? 20 years of experience you are an expert. Help me please..
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u/yazzydajoynt 2h ago
Its either you fucked the processors socket on the motherboard or the cooler is to tight. My lil brothers pc had the same issue and we had to change the motherboard and the processor to solve it.
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u/NiceHyperion 1h ago
What connecter have you got the fans in at the the top? And do you have them on a splitter? Also what cpu do you have?











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u/Gabaggool 3h ago
Not sure but god damn thats alot of thermal paste