Morning all,
So my first attempt at a new build went as smoothly as I thought it would. Unfortunately the motherboard is showing the Red CPU light and Yellow DRAM light at all times.
When i first booted the PC there were no lights - however there was no signal going to the monitor (i have tried 3 different monitors and 3 different HDMI cables). I also connected the HDMI cable via both the GPU and the motherboard. I then removed the GPU so i had better access to check the connections and to test from the motherboard HDMI slot as the GPU has built in graphics. I let it rest - tried again, with no success. The Red and Yellow lights then appeared. (i think they appeared at this point - could have been earlier, prior to GPU removal).
Naively, i then realised I didn't have the 4-pin CPU power lead plugged in- only the 8-pin. (I'm using an MSI PSU so I had to split the 8 pin to power the 2nd 4 Pin PSU slot?) - I had also missed a screw from the motherboard - which I have now replaced.
This made no difference when booting the PC however - the lights continue, and it now doesn't switch off using the case power button (it does however let me turn it on).
I have attached some pictures in case there is something glaringly obvious that I am missing with my connections.
I've been reading up on some fixes this morning - such as "resetting the CPU" - ensuring it is correctly in place. The Wraith cooler is firmly in place. However would i need to reapply thermal paste if i checked the CPU? The Ryzen 7 7700 came with this pre-applied and i have none to hand). I have tried powering it up with both, and each individual stick of RAM (however would that potentially also be a cause for the Red CPU light?). I can confirm my RAM is currently in slots 2/4 as per the motherboard instructions. The RAM is 6000Mhz which is technically over the stock limit but is compatible via overclocking - however this shouldn't be an issue on first build as it will just run at stock?
There is also some chat about updating the BIOS OR clearing the CMOS etc. I have cleared the CMOS by "shorting" and also taken the motherboard battery in and out to reset. Compatibility websites showed no issue with a bios update prior to purchase (when i looked at different builds originally they would come up with notes around needing to update the BIOS - but not with my final build). I'm also a bit worried about voiding the MB warranty if I try any of this, in case it's a motherboard issue and needs to be returned?
My build is below. If anyone has any suggestions or can help in any way it would be much appreciated
Thanks in advance.
AMD Ryzen 7 7700
Corsair Vengeance RGB 32 GB (2 x 16 GB) DDR5-6000
Crucial P3 Plus 2 TB M.2-2280 PCIe 4.0 X4 NVME
Crucial P3 Plus 1 TB M.2-2280 PCIe 4.0 X4 NVME
Sapphire PULSE Radeon RX 6750 XT 12 GB Video Card
MSI MPG A750GF WHITE 750 W 80+ Gold Certified Fully Modular ATX Power Supply
MSI PRO B650M-A WIFI Micro ATX AM5 Motherboard
MB1
MB2
MB3
So my first attempt at a new build went as smoothly as I thought it would. Unfortunately the motherboard is showing the Red CPU light and Yellow DRAM light at all times.
When i first booted the PC there were no lights - however there was no signal going to the monitor (i have tried 3 different monitors and 3 different HDMI cables). I also connected the HDMI cable via both the GPU and the motherboard. I then removed the GPU so i had better access to check the connections and to test from the motherboard HDMI slot as the GPU has built in graphics. I let it rest - tried again, with no success. The Red and Yellow lights then appeared. (i think they appeared at this point - could have been earlier, prior to GPU removal).
Naively, i then realised I didn't have the 4-pin CPU power lead plugged in- only the 8-pin. (I'm using an MSI PSU so I had to split the 8 pin to power the 2nd 4 Pin PSU slot?) - I had also missed a screw from the motherboard - which I have now replaced.
This made no difference when booting the PC however - the lights continue, and it now doesn't switch off using the case power button (it does however let me turn it on).
I have attached some pictures in case there is something glaringly obvious that I am missing with my connections.
I've been reading up on some fixes this morning - such as "resetting the CPU" - ensuring it is correctly in place. The Wraith cooler is firmly in place. However would i need to reapply thermal paste if i checked the CPU? The Ryzen 7 7700 came with this pre-applied and i have none to hand). I have tried powering it up with both, and each individual stick of RAM (however would that potentially also be a cause for the Red CPU light?). I can confirm my RAM is currently in slots 2/4 as per the motherboard instructions. The RAM is 6000Mhz which is technically over the stock limit but is compatible via overclocking - however this shouldn't be an issue on first build as it will just run at stock?
There is also some chat about updating the BIOS OR clearing the CMOS etc. I have cleared the CMOS by "shorting" and also taken the motherboard battery in and out to reset. Compatibility websites showed no issue with a bios update prior to purchase (when i looked at different builds originally they would come up with notes around needing to update the BIOS - but not with my final build). I'm also a bit worried about voiding the MB warranty if I try any of this, in case it's a motherboard issue and needs to be returned?
My build is below. If anyone has any suggestions or can help in any way it would be much appreciated
Thanks in advance.
AMD Ryzen 7 7700
Corsair Vengeance RGB 32 GB (2 x 16 GB) DDR5-6000
Crucial P3 Plus 2 TB M.2-2280 PCIe 4.0 X4 NVME
Crucial P3 Plus 1 TB M.2-2280 PCIe 4.0 X4 NVME
Sapphire PULSE Radeon RX 6750 XT 12 GB Video Card
MSI MPG A750GF WHITE 750 W 80+ Gold Certified Fully Modular ATX Power Supply
MSI PRO B650M-A WIFI Micro ATX AM5 Motherboard
MB1
MB2
MB3
Last edited:
Facebook
Twitter
Instagram