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z890 Steel Legend RAM issue
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as_skiller View Drop Down
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    Posted: Yesterday at 8:13am
Hello everyone,

Got at z890 Steel Legend that used to work well with a compatible set of QVL-approved RAM for almost a whole year without problems. Now it can't work without running at JEDEC 4800, everything else would cause freezes and random BSOD at all time.

Thanks for your help.

Edited by Xaltar - Yesterday at 12:27pm
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Points: 39973 		Post Options Post Options   Thanks (1) Thanks(1)   Quote Xaltar Quote  Post ReplyReply Direct Link To This Post Posted: Yesterday at 12:26pm
Have you made any changes to the system that could have caused the issue? BIOS
updates, upgrades, added more RAM etc?

Do you remember when the issue started?
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Originally posted by Xaltar Xaltar wrote:

Have you made any changes to the system that could have caused the issue? BIOS
updates, upgrades, added more RAM etc?

Do you remember when the issue started?



Zero changes before the first problem appeared actually. No hardware and no software.
My system just started freezing after coming back from sleep with an orange DRAM LED, every single time. Then I ended up putting the BIOS defaults, reflashing the same 3.24 BIOS, and finally using BIOS flashback.
Flashback solved the sleep issues, but since the BIOS defaults, it's non stop BSOD and freezes everywhere in XMP or 200S Boost with or without XMP, even with BIOS flashback + multiple reboots between those changes to make sure they are isolated. It has been a whole month now.
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Points: 39973 		Post Options Post Options   Thanks (1) Thanks(1)   Quote Xaltar Quote  Post ReplyReply Direct Link To This Post Posted: 17 hours 50 minutes ago at 1:31am
Have you tried removing and reseating the RAM? Also, if you are using 2 modules
make sure the RAM is installed in slots A2 and B2 or if a single stick thein in
slot A2. The A1 and B1 slots exist to support 4 modules and don't work well if used
with only 1 or 2 modules installed in the system.
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Points: 60 		Post Options Post Options   Thanks (0) Thanks(0)   Quote as_skiller Quote  Post ReplyReply Direct Link To This Post Posted: 13 hours 32 minutes ago at 5:49am
Originally posted by Xaltar Xaltar wrote:

Have you tried removing and reseating the RAM? Also, if you are using 2 modules
make sure the RAM is installed in slots A2 and B2 or if a single stick thein in
slot A2. The A1 and B1 slots exist to support 4 modules and don't work well if used
with only 1 or 2 modules installed in the system.



Thanks for the suggestion, yes I did only boot with one stick and this works with XMP, then adding a second after a reboot also works. Then after a few reboots BSOD right away.
It seems training is messed up, the values trained for one sticks works for two sticks, but then when somehow it trains again with 2 sticks, it causes problems.

I also tried to freeze all the values that the BIOS trained to, but it seems some values are in the NVRAM only and change across reboots and trainings and fully destroys my system (I am even afraid those freezes killed my CPU, as the 200S boost freezes are very recent). BIOS training seems broken, not sure if only in the last update or previous ones too.

For A2/B2, yes, this has always been respected, thank you for the reminder!
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Points: 39973 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Xaltar Quote  Post ReplyReply Direct Link To This Post Posted: 3 hours 11 minutes ago at 4:10pm
Ouch, it sounds like degradation but you should update to the latest BIOS for your
board and run OCCT to confirm. If the system crashes when boosting the P-Cores
all the way then you may have a CPU issue. It may also be worth running a RAM test
to check for stability/issues. RAM can also degrade over time though it is far less
common.

Another thing to try would be to test both RAM sticks in slots A1 and A2 and see
if the problem with training persists. If not, repeat with B1 and B2. The CPU
contains 2 memory channels, channel A and channel B separated into banks 1 and
2. When running in dual channel (A2 B2 or A1 B1) both channels are in use. By
testing both RAM modules on a single channel it can help identify if that channel
is degraded/weak.

If you can confirm that only one channel is bad then you can use that info to
open an RMA request for the CPU with intel. At that point it proves that the CPU
is 100% the culprit.


Edited by Xaltar - 3 hours 11 minutes ago at 4:10pm
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