Question I tried my new ram, now my PC wont boot!

[bigbobsmith1968]

Hello, I recently got some ram, g.skill said it was compatible. Now that I installed it, all of my pcs fans and lights run, but no boot! I tried my old ram, and my pc booted perfectly! New ram again, reseated twice… but my pc wouldn’t power! The cpu light is on and white with my new ram. The mobo fan is just infinitely spinning, and no display at all! Specs: G.Skill trident Z neo 3600 GTZN, msi x570 tomahawk, and a ryzen 2600! I did also reset the cmos, still no boot!

 

[--SID--]

Motherboard BIOS up to date?

 

[bigbobsmith1968]

Motherboard BIOS up to date?

No, it’s not but it is a bios new enough for ryzen 5000 so I assumed that the bios wasn’t the problem. I really don’t want to update the bios haha…

 

[bfollett]

What speed was your old ram? 2nd Generation, Zen+ Ryzen CPUs such as your 2600 are only officially supported to work with ram rated up to 2933Mhz. You may not get a Ryzen 2600 to work with 3600Mhz ram or it might take a lot of manual configuring of the timings/voltages in the bios. Most Zen+ CPU's top out between 3400-3600Mhz. You could just first load the XMP profile and then just manually keep dropping the frequency one step at a time until you find the max frequency your CPU will handle without any fuss. That's how I started out with my 2600X and had to settle at 3466Mhz. After lots of reading and learning online, a year later I got 3600 working but it was a lot of time and effort with probably little real world performance benefit.

 

[bigbobsmith1968]

What speed was your old ram? 2nd Generation, Zen+ Ryzen CPUs such as your 2600 are only officially supported to work with ram rated up to 2933Mhz. You may not get a Ryzen 2600 to work with 3600Mhz ram or it might take a lot of manual configuring of the timings/voltages in the bios. Most Zen+ CPU's top out between 3400-3600Mhz. You could just first load the XMP profile and then just manually keep dropping the frequency one step at a time until you find the max frequency your CPU will handle without any fuss. That's how I started out with my 2600X and had to settle at 3466Mhz. After lots of reading and learning online, a year later I got 3600 working but it was a lot of time and effort with probably little real world performance benefit.

my first set of ram was either 3200MHZ or I think 3600, I just needed more ram. Because when I built my pc, ram prices were soaring so I couldn’t afford more than 8GB. And I cannot manually tweak the XMP on my new ram because I cannot enter the bios
🙁

 

[bfollett]

There should be jumper on your motherboard to clear(reset) your bios. That should allow you to boot at a very safe memory speed of usually 2133Mhz. The first boot after a bios reset may take a minute to post. If after a minute you still get nothing on screen, you might just have gotten a bad set of ram. Just double check they are seated properly and in the correct slots (usually A2 B2) if it's a 2 stick set of ram.

 

[bigbobsmith1968]

I did take out the CMOS battery, I thought that would do it, because I didn’t have anything besides a screwdriver to jump the pins.

 

[Kona45primo]

Try one stick, and see if that boots. Battery out and jump the pins for 10 seconds

 

[bigbobsmith1968]

Try one stick, and see if that boots. Battery out and jump the pins for 10 seconds

I have tried one stick, both sticks, opposite sticks… I’m pretty sure I have genuinely tried all of the combinations haha!!! And I did remove the cmos battery for like 2 mins, which I think is the same as jumping the pins, right? My original ram still works, it didn’t hurt my PC like other posts have said. It just doesn’t post with the new ram which is what confuses me… All of the lights and fans come on, but the cpu light that normally comes on and then just turns off after a normal post, just stays on and no post.

 

[Kona45primo]

Removing the cmos and jumping is ideal. if your old ram is running at non xmp/stock speeds now then it was probably a good cmos reset.

If your old ram is still running at xmp or old overclocks are still in place, might want to try another reset.

It certainly could be the ram is just not compatible with your cpu. Which sucks, but not the end of the world. Just have to try a different set.

 

[bigbobsmith1968]

I did at one point have A-XMP on but, I found that performance didn’t change or lagged more, so I disabled it. I did see some people talk about training the ram… it sounded kind of ridiculous but I am not sure haha… I waited 2.5Mins which I figured was long enough, was it? I have tried another set in the past with a different mobo, same processor, it did the same thing… I don’t know if I am just really bad at picking ram or if this is something that I am being dumb about. Thanks for all of the help so far!!!

 

[Kona45primo]

Can't blame you for picking fast ram. When I had a 1600x I really wanted 3600 but settled on 3200mhz CL14 flare x. Honestly even that was pushing the mem controller pretty hard, after upgrading to a 3700x it's worked better.

If you have time to play I wonder if setting your ram speed to 2400 and trying the new sticks would work.

 

[bigbobsmith1968]

Since I reset my close CMOS the default ram speed is slower than that, but with my new ram I can’t even get into the bios which sucks.