A pair of 1866MHz CL9 RAM modules* runs only as 1333MHz CL9 on 16h AM1I-A with coreboot is installed, but worked faster when a proprietary UEFI was installed. To fix this "turtle RAM" coreboot problem I tried to play with buildOpts.c - https://review.coreboot.org/c/coreboot/+/33920 , but the things like "#define BLDCFG_MEMORY_CLOCK_SELECT DDR1866_FREQUENCY" sadly did not help.
Any ideas how to improve the RAM speeds? How I can force this RAM to run faster?
Best regards, Mike Banon
[*] Crucial Ballistix Tactical Series DDR3 1866MHz CL9 (PC3-14900 9-9-9-24) UDIMM 240-Pin modules, part number BLT8G3D1869DT1TX0
On Wed, Jul 3, 2019 at 8:54 PM Mike Banon mikebdp2@gmail.com wrote:
A pair of 1866MHz CL9 RAM modules* runs only as 1333MHz CL9 on 16h AM1I-A with coreboot is installed, but worked faster when a proprietary UEFI was installed. To fix this "turtle RAM" coreboot problem I tried to play with buildOpts.c - https://review.coreboot.org/c/coreboot/+/33920 , but the things like "#define BLDCFG_MEMORY_CLOCK_SELECT DDR1866_FREQUENCY" sadly did not help.
Any ideas how to improve the RAM speeds? How I can force this RAM to run faster?
Maybe AGESA debugging / IDS tracing is of some assistance? I have not tried it for a while, though.
https://review.coreboot.org/c/coreboot/+/15320/7
Kyösti
Thank you for advice. I followed the instructions of this change, and after fixing a few compilation errors (had to replace a few %x with %llu at printf's) - using the same .config - I got a ROM which is unbootable! Maybe because I don't have AMD HDT Debugger, and it should've been connected to some usually-not-soldered header for this ROM to boot?
Perhaps I can manually redirect these IDS prints to a standard coreboot log - if that will give some useful info. Or I could dive into AGESA and replace all DDR1333 stuff with a DDR1866 one, to force it running as 1866MHz CL9 - since that "#define BLDCFG_MEMORY_CLOCK_SELECT" seemingly doesn't work for some reason.
Do you have any other ideas to fix this "turtle RAM" AMD 16h problem?
Best regards, Mike Banon
On Fri, Jul 5, 2019 at 8:44 AM Kyösti Mälkki kyosti.malkki@gmail.com wrote:
On Wed, Jul 3, 2019 at 8:54 PM Mike Banon mikebdp2@gmail.com wrote:
A pair of 1866MHz CL9 RAM modules* runs only as 1333MHz CL9 on 16h AM1I-A with coreboot is installed, but worked faster when a proprietary UEFI was installed. To fix this "turtle RAM" coreboot problem I tried to play with buildOpts.c - https://review.coreboot.org/c/coreboot/+/33920 , but the things like "#define BLDCFG_MEMORY_CLOCK_SELECT DDR1866_FREQUENCY" sadly did not help.
Any ideas how to improve the RAM speeds? How I can force this RAM to run faster?
Maybe AGESA debugging / IDS tracing is of some assistance? I have not tried it for a while, though.
https://review.coreboot.org/c/coreboot/+/15320/7
Kyösti
On Fri, Jul 5, 2019 at 5:36 PM Mike Banon mikebdp2@gmail.com wrote:
Thank you for advice. I followed the instructions of this change, and after fixing a few compilation errors (had to replace a few %x with %llu at printf's) - using the same .config - I got a ROM which is unbootable! Maybe because I don't have AMD HDT Debugger, and it should've been connected to some usually-not-soldered header for this ROM to boot?
You don't need HDT debugger. At least I have not experienced IDS troubles because of not having one connected. But go through the IDS options...
Perhaps I can manually redirect these IDS prints to a standard coreboot log - if that will give some useful info. Or I could dive into AGESA and replace all DDR1333 stuff with a DDR1866 one, to force it running as 1866MHz CL9 - since that "#define BLDCFG_MEMORY_CLOCK_SELECT" seemingly doesn't work for some reason.
That's what is supposed to happen already, it should dump all IDS debug on serial console. Or whatever console you have enabled, IDS is routed to printk(). Boots will be slow due the amount of data, maybe 30 seconds or so to get past ram training. There's lots of filtering inside AGESA you can adjust.
Kyösti
Sorry it took me so long: using FT232H and screen Ctrl+A h option, finally I got a complete boot log on AM1I-A Fam16h with these IDS options enabled. Please could you take a look, to see if it contains any hints why this 1866MHz CL9 RAM has been initialized as 1333MHz CL9 only?
P.S. This build is actually bootable but takes about 25 minutes to reach SeaBIOS
On Sun, Jul 7, 2019 at 3:34 PM Kyösti Mälkki kyosti.malkki@gmail.com wrote:
On Fri, Jul 5, 2019 at 5:36 PM Mike Banon mikebdp2@gmail.com wrote:
Thank you for advice. I followed the instructions of this change, and after fixing a few compilation errors (had to replace a few %x with %llu at printf's) - using the same .config - I got a ROM which is unbootable! Maybe because I don't have AMD HDT Debugger, and it should've been connected to some usually-not-soldered header for this ROM to boot?
You don't need HDT debugger. At least I have not experienced IDS troubles because of not having one connected. But go through the IDS options...
Perhaps I can manually redirect these IDS prints to a standard coreboot log - if that will give some useful info. Or I could dive into AGESA and replace all DDR1333 stuff with a DDR1866 one, to force it running as 1866MHz CL9 - since that "#define BLDCFG_MEMORY_CLOCK_SELECT" seemingly doesn't work for some reason.
That's what is supposed to happen already, it should dump all IDS debug on serial console. Or whatever console you have enabled, IDS is routed to printk(). Boots will be slow due the amount of data, maybe 30 seconds or so to get past ram training. There's lots of filtering inside AGESA you can adjust.
Kyösti
On Sun, Nov 10, 2019 at 3:52 PM Mike Banon mikebdp2@gmail.com wrote:
Sorry it took me so long: using FT232H and screen Ctrl+A h option, finally I got a complete boot log on AM1I-A Fam16h with these IDS options enabled. Please could you take a look, to see if it contains any hints why this 1866MHz CL9 RAM has been initialized as 1333MHz CL9 only?
Not really, I expect it to involve several hours of work with little or no gain.
Kyösti
No problem (this log is really huge for some reason). At the beginning of it - the most interesting part - I've found that "MemBusFreqLimit : 800" and "MemoryClockSelect : 667". Perhaps I'd try again forcing either 933 (for 1866, although don't know if possible on this platform) or 800 (for 1600) at the vendorcode. Another interesting thing is that memtest86+ is failing but all the OS are working correctly.
On Sun, Nov 10, 2019 at 7:16 PM Kyösti Mälkki kyosti.malkki@gmail.com wrote:
On Sun, Nov 10, 2019 at 3:52 PM Mike Banon mikebdp2@gmail.com wrote:
Sorry it took me so long: using FT232H and screen Ctrl+A h option, finally I got a complete boot log on AM1I-A Fam16h with these IDS options enabled. Please could you take a look, to see if it contains any hints why this 1866MHz CL9 RAM has been initialized as 1333MHz CL9 only?
Not really, I expect it to involve several hours of work with little or no gain.
Kyösti
I have same issue, memtest86+ failed on all fam16 family for me(AM1ML, AMD devboard and so on) (usually in first 10Mb and near a dedicated video memory). BTW i'm choose to use last free memtest86 (without plus), it work's.
вс, 10 нояб. 2019 г. в 21:07, Mike Banon mikebdp2@gmail.com:
No problem (this log is really huge for some reason). At the beginning of it - the most interesting part - I've found that "MemBusFreqLimit : 800" and "MemoryClockSelect : 667". Perhaps I'd try again forcing either 933 (for 1866, although don't know if possible on this platform) or 800 (for 1600) at the vendorcode. Another interesting thing is that memtest86+ is failing but all the OS are working correctly.
On Sun, Nov 10, 2019 at 7:16 PM Kyösti Mälkki kyosti.malkki@gmail.com wrote:
On Sun, Nov 10, 2019 at 3:52 PM Mike Banon mikebdp2@gmail.com wrote:
Sorry it took me so long: using FT232H and screen Ctrl+A h option, finally I got a complete boot log on AM1I-A Fam16h with these IDS options enabled. Please could you take a look, to see if it contains any hints why this 1866MHz CL9 RAM has been initialized as 1333MHz CL9 only?
Not really, I expect it to involve several hours of work with little or
no gain.
Kyösti
coreboot mailing list -- coreboot@coreboot.org To unsubscribe send an email to coreboot-leave@coreboot.org
I've fixed 45 format-related warnings/errors of IDS_HDT_CONSOLE at AMD 16h vendorcode. Now a coreboot for fam16 could be built successfully with IDS_HDT_CONSOLE enabled (IDSOPT_IDS_ENABLED TRUE and IDSOPT_TRACING_ENABLED TRUE at board/OptionsIds.h) even with config WARNINGS_ARE_ERRORS. Joined errors log (before a fix) could be seen at attachments and here - https://pastebin.com/RZQBvTEc , will upload a patch to review.coreboot.org ASAP. If it's successful, I could try doing the same for the other AGESA platforms.
P.S. IDS_HDT_CONSOLE could be really helpful for debugging, although so much logging causes a board to boot very slowly - i.e. 25 minutes. These logs could be captured using USB EHCI dongle like FT232H.
On Sun, Nov 10, 2019 at 6:16 PM Sergej Ivanov getinaks@gmail.com wrote:
I have same issue, memtest86+ failed on all fam16 family for me(AM1ML, AMD devboard and so on) (usually in first 10Mb and near a dedicated video memory). BTW i'm choose to use last free memtest86 (without plus), it work's.
вс, 10 нояб. 2019 г. в 21:07, Mike Banon mikebdp2@gmail.com:
No problem (this log is really huge for some reason). At the beginning of it - the most interesting part - I've found that "MemBusFreqLimit : 800" and "MemoryClockSelect : 667". Perhaps I'd try again forcing either 933 (for 1866, although don't know if possible on this platform) or 800 (for 1600) at the vendorcode. Another interesting thing is that memtest86+ is failing but all the OS are working correctly.
On Sun, Nov 10, 2019 at 7:16 PM Kyösti Mälkki kyosti.malkki@gmail.com wrote:
On Sun, Nov 10, 2019 at 3:52 PM Mike Banon mikebdp2@gmail.com wrote:
Sorry it took me so long: using FT232H and screen Ctrl+A h option, finally I got a complete boot log on AM1I-A Fam16h with these IDS options enabled. Please could you take a look, to see if it contains any hints why this 1866MHz CL9 RAM has been initialized as 1333MHz CL9 only?
Not really, I expect it to involve several hours of work with little or no gain.
Kyösti
coreboot mailing list -- coreboot@coreboot.org To unsubscribe send an email to coreboot-leave@coreboot.org
-- Мастерство Поклона 7 \ Увеличения нападают на власть, используя поклоны.
I've retested and it seems that my errors with memtest86+ 5.01 floppy happen only if there are any other floppies than this memtest. Errors are at bfce2c80 ( 3068.1MB ). Although I don't have this error on f15h board, perhaps need to somehow improve my unofficial multiple_floppies SeaBIOS patch.
On Sun, Nov 10, 2019 at 9:16 PM Sergej Ivanov getinaks@gmail.com wrote:
I have same issue, memtest86+ failed on all fam16 family for me(AM1ML, AMD devboard and so on) (usually in first 10Mb and near a dedicated video memory). BTW i'm choose to use last free memtest86 (without plus), it work's.
вс, 10 нояб. 2019 г. в 21:07, Mike Banon mikebdp2@gmail.com:
No problem (this log is really huge for some reason). At the beginning of it - the most interesting part - I've found that "MemBusFreqLimit : 800" and "MemoryClockSelect : 667". Perhaps I'd try again forcing either 933 (for 1866, although don't know if possible on this platform) or 800 (for 1600) at the vendorcode. Another interesting thing is that memtest86+ is failing but all the OS are working correctly.
On Sun, Nov 10, 2019 at 7:16 PM Kyösti Mälkki kyosti.malkki@gmail.com wrote:
On Sun, Nov 10, 2019 at 3:52 PM Mike Banon mikebdp2@gmail.com wrote:
Sorry it took me so long: using FT232H and screen Ctrl+A h option, finally I got a complete boot log on AM1I-A Fam16h with these IDS options enabled. Please could you take a look, to see if it contains any hints why this 1866MHz CL9 RAM has been initialized as 1333MHz CL9 only?
Not really, I expect it to involve several hours of work with little or no gain.
Kyösti
coreboot mailing list -- coreboot@coreboot.org To unsubscribe send an email to coreboot-leave@coreboot.org
-- Мастерство Поклона 7 \ Увеличения нападают на власть, используя поклоны.
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Kyösti Mälkki -
Mike Banon -
Sergej Ivanov