Ryzen 3700X problem on B450 Gaming Pro Carbon AC

[arnuld]

I have 3700X on B450 Gaming Pro Carbon AC. Have installed ClickBIOS of 30th July release from MSI website. Sometimes motherboard shows CPU problem (CPU LED on motherboard lights up) and computer keeps on running but I get no display.

I am using XMP 2 profile for RAM, from ClickBIOS. This is the CPU Power socket I have on my gaming pro carbon ac motherboard and next one is the Coprsair TX850M power connector:

Power from 4-pins is connected but I don't have any 2-pin connector. Hence those 2-pins are empty, not connected. Could lack of power be the reason?

 

[UsandThem]

That cable you have is for a GPU (6 pin + 2).

You likely don't even need to plug in a cable for the extra 4-pin (circled in orange) unless heavily overclocking (which doesn't happen for the CPUs from what I've seen).

You should really only need to plug in the 2 x 4-pin CPU connectors (circled in blue). However, make sure you are using a cable labled "CPU" and make sure it is plugged into where it says "CPU" on the power supply. Sometimes cables can be plugged into where they shouldn't be, and it can kill your components.

 

[arnuld]

Oh nice.. thank you so much for the quick reply.

Yeah, the cable I posted pic of was GPU cable. It is modular/detached cable. PSU is semi-modular, so I have 2 cables coming out which can not be detached from PSU: one for that largest size 24 pin cable and 2nd is the one I put in blue circled socket in your pic. It fits perfectly

 

[UsandThem]

Oh nice.. thank you so much for the quick reply.

Yeah, the cable I posted pic of was GPU cable. It is modular/detached cable. PSU is semi-modular, so I have 2 cables coming out which can not be detached from PSU: one for that largest size 24 pin cable and 2nd is the one I put in blue circled socket in your pic. It fits perfectly

So you have your 2 x 4-pin CPU cable plugged in where I circled in blue, and you're still experiencing the non-boot / post issues? Also, have you tried booting after disabling the XMP profile (just leave it at default)? Finally, have you tried clearing the CMOS (page 39 in your manual)?

 

[UsandThem]

I just looked at your TX850M, and I can't make out what extra cables your unit ships with. I see the main 2 x 4-pin CPU cable is one of the fixed cables (along with the 24-pin), but does any of the unattached cables have "CPU_PWR2" or similar stamped on it?

 

[UsandThem]

Another question for you after looking at various stuff, but the back of your PSU labels the two ports I circled in blue as both PCIe and CPU 4 + 4.



Taking one of your PCIe cables (the one you show in your first post), if you it orientated the correct way (matching the little lock tab) are you able to plug it in (without forcing it). If you can, don't connect to the wall just yet. Let someone else here (like @Markfw ) who uses powerful CPUs and who likely knows if this the way he deals with an 8-pin & a supplemental 4-pin connectors on a motherboard.

Edit: My internet came back up, so I think you can disregard what I put a strike through above. From what I've read, it appears you would need to get another modular CPU cable from Corsair. That said, having both of the 2 x 4-pin CPU cables plugged into CPU_PWR1 should be plenty to power a 3700X. I did find this help thread over on the MSI forums that you can read through, and see if the suggestions in post #5 help you figure out your issues:

https://forum-en.msi.com/index.php?topic=310678.0

 

[Markfw]

Another question for you after looking at various stuff, but the back of your PSU labels the two ports I circled in blue as both PCIe and CPU 4 + 4.

View attachment 9528

Taking one of your PCIe cables (the one you show in your first post), if you it orientated the correct way (matching the little lock tab) are you able to plug it in (without forcing it). If you can, don't connect to the wall just yet. Let someone else here (like @Markfw ) who uses powerful CPUs and who likely knows if this the way he deals with an 8-pin & a supplemental 4-pin connectors on a motherboard.

Edit: My internet came back up, so I think you can disregard what I put a strike through above. From what I've read, it appears you would need to get another modular CPU cable from Corsair. That said, having both of the 2 x 4-pin CPU cables plugged into CPU_PWR1 should be plenty to power a 3700X. I did find this help thread over on the MSI forums that you can read through, and see if the suggestions in post #5 help you figure out your issues:

https://forum-en.msi.com/index.php?topic=310678.0

Normally you have 2 different ports for CPU, and they are not common with PCIE, so not sure.

 

[arnuld]

Edit: My internet came back up, so I think you can disregard what I put a strike through above. From what I've read, it appears you would need to get another modular CPU cable from Corsair. That said, having both of the 2 x 4-pin CPU cables plugged into CPU_PWR1 should be plenty to power a 3700X. I did find this help thread over on the MSI forums that you can read through, and see if the suggestions in post #5 help you figure out your issues:

https://forum-en.msi.com/index.php?topic=310678.0

So many thanks @UsandThem . You did lot of research on this . I think I was not clear enough in my question, so here is the background of the problem:

• I have already updated to ClickBIOS (30th July Update from MSI website) before I even touched anything
• It does boot, but it is a hit and miss. It is not dead at all
• I watched lot of videos and lot of people seem to have this problem.

People generally have success rate of 1/3rd with Ryzen 3000 series. Some have disabled the XMP profile (by default it is disabled) and some have luck in removing the RESET switches from Motherboard. Some have luck in hitting the Reset button when no display was coming on:

And no, none of the unattached cables that came with Corsair TX850M have CPU written on them. Al lhave PCIe written and rest are old gen molex and SATA connectors. Like you said, that much of power is not required because I am more of depending on PBO than manual OC and all I do is productivity and watching BluRay movies and zero games. So I think I will forget about the 2x2 connector .I will update about the hit-and-miss booting. BTW, there is never any problem with rebooting, just hard booting is hit-and-miss

 

[VirtualLarry]

That's kind of weird, that unplugging the RESET front-panel switch connection, would allow for POST. I can only imagine, that possibly, given that these CPUs are SoCs, that the RESET jumper might be wired directly to a pin on the SoC, in order to initiate system-wide RESET signal, and thus, perhaps connecting the front-panel wiring, is coupling RF noise, or excessive capacitance, or something otherwise interfering with the proper workings of the system. Just a hypothesis. Kind of like, how connecting front-panel audio can sometimes result in noise in headphones or speakers, even if you're not actually using the front-panel jacks.

Seems like weird engineering though, if true. I would think that they would have some sort of de-coupling or noise-blocking SMT capacitor in-line with the RESET switch, anyways.

 

[Markfw]

So many thanks @UsandThem . You did lot of research on this . I think I was not clear enough in my question, so here is the background of the problem:

• I have already updated to ClickBIOS (30th July Update from MSI website) before I even touched anything
• It does boot, but it is a hit and miss. It is not dead at all
• I watched lot of videos and lot of people seem to have this problem.

People generally have success rate of 1/3rd with Ryzen 3000 series. Some have disabled the XMP profile (by default it is disabled) and some have luck in removing the RESET switches from Motherboard. Some have luck in hitting the Reset button when no display was coming on:

And no, none of the unattached cables that came with Corsair TX850M have CPU written on them. Al lhave PCIe written and rest are old gen molex and SATA connectors. Like you said, that much of power is not required because I am more of depending on PBO than manual OC and all I do is productivity and watching BluRay movies and zero games. So I think I will forget about the 2x2 connector .I will update about the hit-and-miss booting. BTW, there is never any problem with rebooting, just hard booting is hit-and-miss

You may have to get a new PSU. Here is an example: https://www.newegg.com/evga-650-gq-210-gq-0650-v1-650w/p/N82E16817438059

And the connectors:
1 x 24-Pin ATX
2 x 8-Pin (4+4) EPS (CPU)
4 x 8-Pin (6+2) PCIE
9 x SATA
3 x Four-Pin Peripheral
2 x Floppy

This is what you need for any Ryzen motherboard that I have seen.The one linked is only $94

This one is much better the G3 series, $130 https://www.newegg.com/evga-supernova-750-g3-220-g3-0750-x1-750w/p/N82E16817438093

 

[UsandThem]

You may have to get a new PSU. Here is an example: https://www.newegg.com/evga-650-gq-210-gq-0650-v1-650w/p/N82E16817438059

And the connectors:
1 x 24-Pin ATX
2 x 8-Pin (4+4) EPS (CPU)

Odd a quality 850w current-model PSU doesn't come with more than 1 CPU cable.

I just checked my Seasonic 750W Prime Gold unit I bought around 18 months ago, and it came with two of them (although I use just one). I've never had a CPU powerful enough to need the supplemental 4-pin connection.

 

[Markfw]

Odd a quality 850w current-model PSU doesn't come with more than 1 CPU cable.

I just checked my Seasonic 750W Prime Gold unit I bought around 18 months ago, and it came with two of them (although I use just one). I've never had a CPU powerful enough to need the supplemental 4-pin connection.

Its not all about the CPU. It could be that this motherboard needs them both.

 

[UsandThem]

Its not all about the CPU. It could be that this motherboard needs them both.

Good point.

I guess when I've looked at motherboards in the past that came with both 8 + 4 pin connectors, the manual would state the additional 4-pin was for overclocking, or for demanding CPUs (like the 9900k). Maybe the "optional" portion has now changed on some boards.

I guess going forward, it would be a good decision for those buying new power supplies, to make sure it comes with 2 CPU cables. I'm kinda surprised the 850w Corsair didn't (when the 750w versions of my PSU, and the EVGA G3 you linked to both do).

 

[arnuld]

You may have to get a new PSU. Here is an example: https://www.newegg.com/evga-650-gq-210-gq-0650-v1-650w/p/N82E16817438059

And the connectors:
1 x 24-Pin ATX
2 x 8-Pin (4+4) EPS (CPU)
4 x 8-Pin (6+2) PCIE
9 x SATA
3 x Four-Pin Peripheral
2 x Floppy

This is what you need for any Ryzen motherboard that I have seen.The one linked is only $94

This one is much better the G3 series, $130 https://www.newegg.com/evga-supernova-750-g3-220-g3-0750-x1-750w/p/N82E16817438093

650W one costs $215 and 750W costs $281, when shipped to India.



I did not have this kind of budget, that is why ordered what I get best locally TXM considered as a very good quality range.

 

[Kenmitch]

Good point.

I guess when I've looked at motherboards in the past that came with both 8 + 4 pin connectors, the manual would state the additional 4-pin was for overclocking, or for demanding CPUs (like the 9900k). Maybe the "optional" portion has now changed on some boards.

I guess going forward, it would be a good decision for those buying new power supplies, to make sure it comes with 2 CPU cables. I'm kinda surprised the 850w Corsair didn't (when the 750w versions of my PSU, and the EVGA G3 you linked to both do).

I've always viewed them as possibly providing a more consistent and stable voltage.

The only cpu I've ever really pumped up the vcore into was a 2550k, but it was only 1.7v's. lol

 

[Seba]

It's more likely a BIOS issue. Check r/MSI_Gaming for instance.

 

[Thunder 57]

I bought the Seasonic Focus Plus 650W last year and it may be my favorite power supply yet. It comes with everything you need and has a 10 year warranty.

What GPU are you using? You may be fine with a 550W PSU with a 3700X. Anything beyond 650W is probably overkill, IMHO.

 

[maddogmcgee]

Bios issue for sure. MSI Reddit is filled with posts about the red cpu light bug. As Usandthem mentioned, you shouldnt need that extra power cord. Nor do I think its the PSU. I had issues with my MSI Tomahawk that are now fixed. Same issue, red CPU light came on despite no physical issue. It would eventually turn on but took many tries.

When you are trying to turn it on, do you wait for at least 30 seconds? For my board I knew turning it on was working when my graphics card light turned on (I would then wait while it did its thing and eventually posted). If the graphics card light didn't turn on I knew it wasn't going to work and tried again. One time it took 30-40 minutes and then randomly worked. I would certainly put everything to stock settings until its working at least most of the time.

I know it seems weird but have you tried unplugging the reset switch. I needed to do that to get it to post frequently enough to install windows. Also its easy to make mistakes when you are trying every component in every combination. Maybe double check all the cords are in securely, ram is in the correct slots etc before spending 30 minutes turning it off and on again.

Current firmware for my board works seems to work fine though. Stick with it!

 

[arnuld]

I bought the Seasonic Focus Plus 650W last year and it may be my favorite power supply yet. It comes with everything you need and has a 10 year warranty.

What GPU are you using? You may be fine with a 550W PSU with a 3700X. Anything beyond 650W is probably overkill, IMHO.

I have ASUS ROG STRIX Vega 64 and have checked outversion power supply calculator and it recommended 750W (EVGA SuperNova G3) but since 750W was out of stock when I wanted to order parts, I ordered 850W. Everything related to computer parts is not easily available in India e.g. 3700X costs $450 here.

https://in.pcpartpicker.com/user/arnuld.mizong/saved/r7VXP6

UPDATE:

I wanted to order RX 580 but I do scientific computing, hence Vega is useful there, was looking for Vega 56 but could not find it and hence ordered Vega 64.

Same for CPU, thought will order 3600X which costs 30% lesser than 3700X but then again I wanted extra cores for my productivity work and also not going to upgrade till next 3-4 years and CPUs last long, very long, So I spent $135 extra for CPU .

My Athlon II X3 is still running after 5 years even though PSU has died thrice, keyboard four/five times, monitor thrice. Normal membrane keyboard costs $10, I spent $85 on Cooler Master Masterkeys Pro L with Cherry Red keys:

https://www.coolermaster.com/catalog/peripheral/keyboards/masterkeys-pro-l-white/

Bbecause I heard a lot about both the quality, durability and joy of typing on a mechanical keyboard, I ordered one and I have to agree it is really great experience using it after 10 years of membrane dome abuse.

 

[VirtualLarry]

even though PSU has died thrice, keyboard four/five times

Gotta stop going to "those sites", man.
LOL.

 

[Thunder 57]

I have ASUS ROG STRIX Vega 64 and have checked outversion power supply calculator and it recommended 750W (EVGA SuperNova G3) but since 750W was out of stock when I wanted to order parts, I ordered 850W. Everything related to computer parts is not easily available in India e.g. 3700X costs $450 here.

https://in.pcpartpicker.com/user/arnuld.mizong/saved/r7VXP6

UPDATE:

I wanted to order RX 580 but I do scientific computing, hence Vega is useful there, was looking for Vega 56 but could not find it and hence ordered Vega 64.

Same for CPU, thought will order 3600X which costs 30% lesser than 3700X but then again I wanted extra cores for my productivity work and also not going to upgrade till next 3-4 years and CPUs last long, very long, So I spent $135 extra for CPU .

My Athlon II X3 is still running after 5 years even though PSU has died thrice, keyboard four/five times, monitor thrice. Normal membrane keyboard costs $10, I spent $85 on Cooler Master Masterkeys Pro L with Cherry Red keys:

https://www.coolermaster.com/catalog/peripheral/keyboards/masterkeys-pro-l-white/

Bbecause I heard a lot about both the quality, durability and joy of typing on a mechanical keyboard, I ordered one and I have to agree it is really great experience using it after 10 years of membrane dome abuse.

You wasted your money by using a stupid PSU website. It's not so much really about the watts but the amps the 12V rail can provide. With a 2600X, RX 480, multiple HDD's and SSD's, a PCIe network card, I max out around 330 watts under heavy load.

It sounds like you buy a lot of crap that breaks easily. I suggested a PSU with a 10 year warranty. You have gone through three in five years. Meh, you be you.

EDIT

I feel I have to add that two power supplies lasted me about 15 years. Now I have one with a 10 year warranty. And you completely ignored the advice above about a BIOS issue.

 

[arnuld]

You wasted your money by using a stupid PSU website. It's not so much really about the watts but the amps the 12V rail can provide. With a 2600X, RX 480, multiple HDD's and SSD's, a PCIe network card, I max out around 330 watts under heavy load.

It sounds like you buy a lot of crap that breaks easily. I suggested a PSU with a 10 year warranty. You have gone through three in five years. Meh, you be you.

EDIT

I feel I have to add that two power supplies lasted me about 15 years. Now I have one with a 10 year warranty. And you completely ignored the advice above about a BIOS issue.

In india people generally buy local PSUs (SMPS abbreviation is more popular here than PSU). Local ones cost around $7 at max. I used these for years. If you open anyone's case here you will find $3-7 PSUs (On a side and funny note, the case or the cabinet, people call it CPU here in India. So the CPU contains DVD-RW and Motherboard inside of it. That is what we were taught in schools. Next question is what you call 3700X then, well, it is called processor.)

Once I came to know about how much important is 12V rail is and that local PSUs do not have much amperage on those, I got Antec Earthwatts 450W (80+) which died in less than 3 years, then I had one more of same because back in 2014 there were not many options (still not actually). I was also on tight budget and hence I bought same for $32 and again it died in 2+ years. Then this time I decided to really buy a good rated PSU, hence TXM 850W which cost me $150. EVGA SuperNova G3750 was costing $225-245 and hence I dropped the idea of buying it. Anyway, TXM 850 has 7 years guaranty on it. So I guess it will take at least 5 years before it dies. That time I will upgrade my hardware anyway.

 

[VirtualLarry]

I wonder, could electrical grid issues with power and fluctuations in your country, be one reason the people buy locally-sourced PSUs, because they are effectively "disposable", due to poor power conditions?

 

[arnuld]

I wonder, could electrical grid issues with power and fluctuations in your country, be one reason the people buy locally-sourced PSUs, because they are effectively "disposable", due to poor power conditions?

yeah, we have lot of voltage fluctuations and power issues but that is not the reason people buy localy sourced PSUs. They buy it because it is cheap, compare $7 with $32 for same wattage. Why people spend four times more for the same power. Everyeone I have met with a computer does not have any idea about 12V rail and if you talk about it, people generally shrug and don't care. The only thing grid/power/voltage issue helps is in killing the hardware . Generally I use this UPS:

https://www.amazon.in/APC-BX600C-60...words=apc+ups&qid=1565765531&s=gateway&sr=8-3

This saves your computer from all the power related problem and it lasts for around one and half years , then I buy new one. Now this time with 3700X and Vega64, I have upgraded to 660W UPS from APC. At 80% an 850W will give 680W .. that is approximate match for the UPS.

 

[PotatoWithEarsOnSide]

I bought the Seasonic Focus Plus 650W last year and it may be my favorite power supply yet. It comes with everything you need and has a 10 year warranty.

What GPU are you using? You may be fine with a 550W PSU with a 3700X. Anything beyond 650W is probably overkill, IMHO.

Same, though I went for the 750w as at the time it was priced identically to the 650w model.