AMD R5 3600 dying again?

[UkayJ]

Hello, I just got a new cpu on warranty and after 4 days it's done the same thing that finished off the other one : computer freezes during gaming and both of my screens turn off so I had to hard reset it.

After a quick search : could it be the PSU? It's an XPG CORE Reactor 750W gold rated. It's only half a year old. I had no problems with the Corsair 600w gold rated that was in it for probably 3 years at least (but I put that in a second pc I was building for us).

Motherboard is an MSI B450 Tomahawk (the old one that I had to update the BIOS to accept the 3600 cpu).

pc is watercooled so cpu doesn't go over 65*C

I had it slightly undervolted via offset on the old broke one.

It's now fixed under 1.3volts (still going down 1 step at a time to see how low it will go) @ 4.1GHz.

 

[UkayJ]

It must be the cpu and not the ram or gpu as I put my old cpu in second pc to test it and it wouldn't boot, also AMD confirmed it to be dead.

I'm undervolting to reduce heat and I wondered if the motherboard was feeding it too many volts and that's why the old one died. It reaches over 1.4v and I'm sure I read the safe limit is 1.35ish.

gpu is amd rx480 with a full cover waterblock on, its got one cable only.

I don't know what LLC is, I thought it was Intel only and never having owned an Intel cpu I never learnt more about it.

If it freezes again I'll change the undervolt back to auto and see how it gets on. The old negative offset undervolt worked for a long time though (since before the new psu).

 

[UkayJ]

LLC is on AMD too, it'll be somewhere in amongst the power settings in the BIOS. It gives a little extra voltage under heavy loads, to combat 'vdroop', which I reckon is what you've got going on...
There's often a sub-menu with stuff like power phases, it's usually in there.
I run a medium setting most of the time, my 2700X used to crash out without it, and my 5800X has done it once when I first got it. Worth a shot, maybe...

Great explanation thanks, I'll have a look at that

Should just set vcore and multi to auto as these CPUs are not like Intel and are designed to run up to 1.5v for light loads.

As I said, I had read that 1.35v was the safe limit which is why I wanted to undervolt in the first place
but I'm going to try this LLC magic.

 

[UkayJ]

For LLC I have "Auto" and Modes 1-8, I presume 8 would give the greatest increase in voltage under load so I've set it to mode 2 for now.

 

[UkayJ]

So I set the CPU back to Auto, it's crashed twice I think already (screens freeze then go off so I have to hard reset).

The only other thing I've done in bios is set RAM to 3600MHz (what it's rated for) and Infinity Fabric clock? to 1800MHz.

It can't be the CPU OC/undervolt or anything else that's causing this?! XPG Core Reactor PSU?

 

[UkayJ]

Yes vcore back to auto.

I'll lower the ram speed, should I keep the Infinity Fabric(?) Clock at half the ram speed as well?

Software logs-wise I think I tried looking but wouldn't know what to look for and because it's just freezing unexpectedly I can't have a quick look at Hardware Info for example.

Hardware Info otherwise seems OK temp wise etc.

 

[UkayJ]

I had some RAM in an AM4/B450M board with a 1600AF, RAM was rated but anything other than AUTO wouldn't let me do much before it crapped out.
I suggest defaulting the BIOS, set the boot order and leave everything else.

I'll try that now thank you.

I just had fabric clock (FCLK) on Auto and RAM @ 3200MHz, it seemed lag free but suddenly froze so I set it to 2666MHz which was quite laggy, only had one game though on Apex Legends.

Bios version : 7C02v1D - this was the one to use to get the 3xxx series working on older boards so I haven't updated BIOS again, should I?

 

[UkayJ]

Had 1 game, it jittered several times. I checked HWInfo64 and the RAM hasn't moved from 1066.5MHz, it's rated for 3600! (1800 as I presume HWInfo64 is not giving it doubled)

 

[UkayJ]

I ran the windows memtest and it was fine.

Im pretty sure it's just 3600 rated and not XMP but I'll check that, I haven't used XMP on it but could try it to see if it helps.

The sticks are in the correct slots.

 

[UkayJ]

do you have lights on your keyboard/mouse/monitor do all of them turn of when the computer freezes or do they stay on ?

Monitors go into standby, lights in case stay on. I don't have a light up keyboard or mouse.

 

[UkayJ]

Yeah next time it freezes I'll give num lock a press

 

[UkayJ]

The Ram I have is Geil Orion AMD 3600MHz 2x8GB. It's XMP2.0 capable. I assume it should run at 3600MHz though without XMP or extra voltage etc. as I guess it's been binned for that speed?

Is that how it works?

 

[UkayJ]

If I remember correctly in the Bios the ram was on 1.364v.

I've downloaded the spec sheet from their website and I'm not sure the ram is even supported on my motherboard yet it's for ryzen 5 3600s.

GAOG416GB3600C18BDC

 

[UkayJ]

Looking at the MSI B450 tomahawk web page, it only supports up to 3466MHz RAM via A-XMP anyway...

• Supports 1866/ 2133/ 2400/ 2667Mhz (by JEDEC)
• Supports 2667/ 2800/ 2933/ 3000/ 3066/ 3200/ 3466 MHz (by A-XMP OC MODE)

Slight oversight on my part

 

[UkayJ]

I wouldn't worry to much about the what the board support pages says as it's likely not been updated from Zen+.

I have the tomahawk max which is the same board expect the larger bios chip and I've had ram running at 3800mhz 1-1 with both the ryzen 3600 and 5800X, I've also had the ram running at 4400mhz with a 2-1 fclk.

Oh wow nice, ok then thanks.

I've had a quick test (gaming) of the RAM on the only XMP profile I appear to have and it seemed ok; will be testing it more this evening to see if I get a freeze.

 

[UkayJ]

Just had a freeze, playing Overwatch because Apex not connecting; Numlock didn't work but laser and lights on mouse remained on. No signs of laggy performance in game or anything, it just froze.

 

[UkayJ]

Download the ryzen Dram calculator and run the built in ram test that comes with it overnight.

Ok will do thank you.

I checked the Web and no where sells Geil Ram anymore, bit dodgy.

 

[UkayJ]

I'd discount the laser on the mouse, they tend to light up as long as there is power coming out of the USB port..

Someone asked me about the laser on the mouse...
And

I suggest you get the machine working before you start messing with RAM timings or anything else, tweaking a system should come after it is stable, not as a means to make it stable..

That is not what I've done...

 

[UkayJ]

Did you even run the system at 2666 ram speed and see if it was stable? Are you even running memtest apps to test for issues quicker?

YES, I DID! LIKE I SAID I DID! CLEARLY YOU'RE NOT EVEN READING REPLIES! AND LIKE I SAID TO THE PERSON THAT SUGGESTED IT : I'LL DL THE RYZEN MEMTEST TONIGHT AND LEAVE IT RUNNING OVERNIGHT, LIKE THEY SUGGESTED I DO!

ARE YOU TWO RELATED BY ANY CHANCE?!

 

[UkayJ]

Download the ryzen Dram calculator and run the built in ram test that comes with it overnight.

Soooo, not 1 error and it's been on for 8 hours and 45mins.

I'm pretty sure I set it right: 12 threads, I left MB per thread empty like it suggests so it ended up leaving only a few hundered Available Physical Memory and I unchecked Low Priority Threads.