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*** AMD "Zen 4" thread (inc AM5/APU discussion) ***
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Underboss
Underboss
So how the he'll do i reinstall windows then ?
Have you set EXPO? I would set optimized defaults till the OS is on. if you have a second pc/laptop download the OS with that or use the old USB OS.
Underboss
No, it's default
Just tried old ssd, same problem
I downloaded and installed over the old one
Could it be the usb image is corrupted??
Just tried old ssd, same problem
I downloaded and installed over the old one
Could it be the usb image is corrupted??
Might be? I don’t know what to suggest. I have a spare PC so I would create the OS disk using that and download the latest BIOS. then use flashback to update the BIOS and try and install the OS again. I also delete all the partitions when doing a fresh install (in the OS install drive selection part). Also, only have one drive connected when you do the install.
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Underboss
I've now created another boot, from my mum's pc
Fingers crossed
Fingers crossed
Underboss
**** me
It worked
It worked
Underboss
Underboss
Oh yes, now I remember, unplug Internet to skip it lol
Underboss
now i can TEST 
Looks like my 7950x in fact is not stable with 6200mhz ram.
system has been running great for weeks but I recently started playing a game called wu long fallen dynasty and I guess it must hit the memory hard cause playing it has caused a couple bsod for me with a generic ntoskernal error message. After googling what that means it looks like it could be anything but memory is suspected culprit so I used the windows memory diagnostic and it picked up memory errors within a minute, bumped down to 6000mhz and test didn't pick up error.
I need to find some better timings for 6000mhz though
system has been running great for weeks but I recently started playing a game called wu long fallen dynasty and I guess it must hit the memory hard cause playing it has caused a couple bsod for me with a generic ntoskernal error message. After googling what that means it looks like it could be anything but memory is suspected culprit so I used the windows memory diagnostic and it picked up memory errors within a minute, bumped down to 6000mhz and test didn't pick up error.
I need to find some better timings for 6000mhz though
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Caporegime
What memory are you using, Hynix or Samsung? Post a zen timings screenshot and I can give you some timings to try.
At 6200 HCI Memtest also picked up a couple errors within 10 minutes of testing. Prime95 and Occt dont seem to have any issue. I tried but couldnt get Ycruncher to run properly it wont import a RAM testing config file.
Cool thanks Matt. CPU-Z reports its Hynix
Cool thanks Matt. CPU-Z reports its Hynix
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Time will tell, but I think I've got stable settings again
I used settings from this video
This is the new timings and aida64 numbers. Bandwidth is up by 7GB/s and latency is down by 10ns compared to the XMP settings I was using and its no longer producing errors in HCI memtest and Windows memory diagnostics.
I used settings from this video
This is the new timings and aida64 numbers. Bandwidth is up by 7GB/s and latency is down by 10ns compared to the XMP settings I was using and its no longer producing errors in HCI memtest and Windows memory diagnostics.
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Caporegime
This is for Hynix M Die 32GB Single Rank 6000Mhz C30, 1.36vAt 6200 HCI Memtest also picked up a couple errors within 10 minutes of testing. Prime95 and Occt dont seem to have any issue. I tried but couldnt get Ycruncher to run properly it wont import a RAM testing config file.
Cool thanks Matt. CPU-Z reports its Hynix
Copy these timings exactly (but change frequency to 6000Mhz, where I have written in black use those timings instead for Hynix M Die 32GB single rank kit.
Copy these BIOS settings as well. First and second screenshots are recommended settings by Veii from oc.net and work well with Hynix DIMMs.
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will those timings also work for these sticks which are also M die ?This is for Hynix M Die 32GB Single Rank 6000Mhz C30, 1.36v
Copy these timings exactly (but change frequency to 6000Mhz, where I have written in black use those timings instead for Hynix M Die 32GB single rank kit.
Copy these BIOS settings as well. First and second screenshots are recommended settings by Veii from oc.net and work well with Hynix DIMMs.
Third screenshot is disabling Gear down mode, helps improve latency a little. Fourth screenshot is powerdown mode off etc.
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Caporegime
Should do. Timings can be improved a little, but the above was close to what I was running with Hynix M die kits.will those timings also work for these sticks which are also M die ?
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