PSA: AMD AM5 issue with over voltage requiring BIOS update
- Thread starter dansilvkai
- Start date
Yeah thinking the same, already sent them a mail yesterday so have to do an RMA I suppose. Shame to have to go through it but have to get it sorted out.
Nobody's fault, not sure their testing would have caught this since it seems to only happen when I try launch a game and everything else to that point works just fine. Just odd that even after I restart the machine it still has issues even trying to get into windows and needs a full Windos reinstall to fix it. It's like the crash corrupts the whole system. Very odd.
Nobody's fault, not sure their testing would have caught this since it seems to only happen when I try launch a game and everything else to that point works just fine. Just odd that even after I restart the machine it still has issues even trying to get into windows and needs a full Windos reinstall to fix it. It's like the crash corrupts the whole system. Very odd.
It sounds like a memory issue to me. It's the sort of issues that you will get with unstable RAM.
It's already been noted that the latest BIOS updates can actually make stock RAM unstable when it requires more voltage than the stock settings allow. EXPO can rectify this but not until it's sorted out. It's a bit of a catch 22 situation so I would let PCS work it out.
It's already been noted that the latest BIOS updates can actually make stock RAM unstable when it requires more voltage than the stock settings allow. EXPO can rectify this but not until it's sorted out. It's a bit of a catch 22 situation so I would let PCS work it out.
So I wait 9 days for permission to flash my BIOS and it's likely to start causing more problems?Starting to think I'll just leave EXPO off and wait 6 months before considering a BIOS update, especially given my system is working fine
It's a tricky situation mate. Without the bios update the voltage can still over shoot and cause hardware degredation. You won't notice this in performance.
Installing the bios should reduce the over voltage issues, but in doing so can hamstring the RAM if it's not a good enough bin of chips.
From what I understand so far 1403 doesn't actually fix the problem, it still over shoots on the voltage. This will be better for compatibility but a danger for longevity (with EXPO). I saw 1.24v locked on the SoC which was fine for my uses. Some RAM needs 1.3 for stability though and no matter what I set mine to it stayed at 1.24v.
If your SoC is registering less than 1.3v and you have stability then I would just leave it for now.
I tried disabling CPB to see if it was maybe a processor issue but same thing.
Starting to think it's possibly the graphics card.
In any case too many maybes so will RMA it.
Just got unlucky, it happens!
I wouldn't be overly concerned then, that seems fine to me. You've got a ton of performance left on the table but until this is all ironed out I would just hold off.
Was thinking that but if it is faulty then it's going back for RMA anyway and if it's not faulty it's still going back for RMA!
I'll let them check it out and replace the card if needed. Really don't want to break something by accident (I've changed cards before but when it's under warranty no point risking it).
sck451
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Or, following Hanlon's razor, this was always the intention but in rushing to get it delivered, not all the ducks were neatly in their rows.
So one thing I did not check is the type of RAM installed.
It's listed as (2 x 16gb) 6000mhz CL 40-40-40-77
I checked and none of the Corsair AMD RAM has this spec. It seems this is Corsair RAM designed for Intel systems.
Would this cause the issues I'm seeing or does it not really matter?
It's listed as (2 x 16gb) 6000mhz CL 40-40-40-77
I checked and none of the Corsair AMD RAM has this spec. It seems this is Corsair RAM designed for Intel systems.
Would this cause the issues I'm seeing or does it not really matter?
SpyderTracks
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So long as it's got XMP applied and not EXPO it should be fine.
I didn't see an XMP option. On the main page of the BIOS there is an EXPO drop with enable and disable options. Or is there advanced settings I should be checking?
Thanks for the info, looks like we have the exact same RAM so if it's working on your AM5 board then it should work on mine. Looking more likely it's faulty RAM but will do the RMA and get it sorted.
How is your new system on the whole? Was really impressed with speed and the FPS (for the few minutes I was able to see them!) on mine.
Yeah a 4090 will eat up a 4k setting!
I'm on a 1440p monitor (have a 4k TV for certain games on big screen). Went for the 6950XT. Price has plummeted on it so couldn't resist the bang for the buck. Hopefully get to give it a proper run soon depending on how long the RMA process is.
SpyderTracks
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RAM is silicon, hence your bound by the same silicon lottery as if you were overclocking a CPU.
One DIMM will have entirely different voltage capabilities to another, and a difference of 10mV from an EXPO pre applied OC to an Intel XMP could mean the difference between stability and BSODs. This is exactly why it's so important to buy matched pairs, because they're likely from the same wafer and therefor have similar electical properties.
Saying "it works fine on mine" is a bit like saying take my glasses, I can see fine so you should be able to.
The Intel RAM DIMMS do not have any EXPO profiles loaded on the DIMM itself, so it's not tying in correctly with the OC profiles on the Mobo.
EXPO DIMMS will normally have a few XMP profiles loaded additionally to the EXPO ones.
I would still suggest using XMP if you don't have EXPO RAM as the voltage parameters are designed for that DIMM.
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So on my BIOS (when I got the system) it had EXPO Enabled on the main page. In the advanced settings under the AI Tweaker it was set to "Auto" which I assume knows the capability of your RAM and sets to either EXPO or XMP.
Odd thing is the timings on my RAM (checking in Task Manager) were around 5800 and not 6000.
After disabling EXPO (again, just on the main BIOS page as it's worded that way) the RAM clocked down to 4800 and still had issues.
SpyderTracks
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You're right, if you're still getting instability with EXPO off then it's nothing to do with either XMP or EXPO.
I would run a Memtest86 run on both DIMMS from a bootable USB
Can you upload a screenshot of your optional updates page?
This is the weird behaviour that Jayz2cents had. With EXPO and XMP off, the system would BSOD as the stock settings weren't feeding the RAM enough voltage. Ended up in that rock and hard place scenario where with EXPO off, it wouldn't post. But with it on, it would... but lose warranty.
SpyderTracks
We love you Ukraine
Oh, I thought that was with EXPO on, didn't realise it was affecting him with it off.