SD Overclocking - DIGIC 5 only

[bobolee]

Hi everyone. I have tested my new Sandisk Extreme Pro, upgraded version - READ 200 and WRITE 140MB/s and I am using the crop_mood.2023May09.700D115 in my 700D camera.
...

Have you changed the photo shooting settings to raw format in original Canon menu?

[Walter Schulz]

Interesting, we need to find a better 240 MHz configuration in this case, unfortunately I can't work on it since I don't have an affected SD card.

Can do test runs on 650D if it helps.

[theBilalFakhouri]

@Walter

Does your Sandisk Extreme PRO 200 MB/s 256GB drop to 21 MB/s when recording (OC at 240 MHz)?
To find out try recording at 80 MB/s maybe until you fill the card, try peviewing the clips between recording sessions.

[Walter Schulz]

Benchmark in mode PLAY-PH LCD
w 94.5
r 105-7
w 95.2
r 106.1

Running record tests now.

EDIT: Looks like unstable with 240 MHz and Access mode SDR 104. Recording will stop with message "expected more frames ...) and fallback to 20 MByte/s. SDR50 not having this problem.
First test, may have to do more thorough tests.

EDITEDIT: Correction: More stable. A lot more stable. But will fallback to 20 MByte/s and stopping recording. Got a 30 GB file and 8:26 recording -> Around 60 MByte/s.

Q: Next steps?

PS: Ah, have to redo tests. Not configured correctly. Will retest tomorrow.

[theBilalFakhouri]

@Walter

Thanks for the tests, so it does drop to 21 MB/s after some time with SDR104?
Could you try the same test but this time on EOS M instead of 650D using the same SD card? Is it stable there?

[Walter Schulz]

650D: It stops after mere seconds with SDR104.

[bobolee]

This micro sd card was getting 20MB/S and recording halt randomly when using standard sdr105/240mhz overclocking,but yesterday,I find that sdr50/240mhz mode got a full card recording without any problem,just like recording with my old 128GB 95MB/s sd card in sdr105/240mhz mode does.
Tested in 30+ ℃ ambient temperature.3x3 1080p 16：9 30fps ,global draw all disabled to minimize CPU usage.Will test more in the future to make sure it is 100% reliable even in harsh environment .
Another conclusion is that SanDisk Mico sd and sd are equal for the use of ML cameras,both works the same,but micro sd version of extreme pro is about half the price of SD version.

[Walter Schulz]

Bilal, you checked my results with Samsung PRO Plus 256GB "K" Series? https://www.magiclantern.fm/forum/index.php?topic=26932.msg244103#msg244103
No issues with SDR 104 at all.

Now testing Sandisk Extreme Pro R200/W140 and EOS M.

Benchmark looks fine with 95 MByte/s for write in PLAY-UNK.

SDR104 and SDR50 act quite similar: Forced stop after some minutes. 17GB and 8.x GB in first run.


It looks like Samsung is performing a bit better!

[theBilalFakhouri]

Thanks for the test, so EOS M with Sandisk Extreme Pro R200/W140 at 240 MHz didn't drop to 21 MB/s in all tests unlike 650D?
If yes, that's because 240 MHz preset configuration on EOS M is different from the one on 650D:

1- Hyprid method was used on EOS M i.e 240 MHz for write and 192 MHz for read while on 650D it's 240 MHz in both write/read
2- 240 MHz preset on EOS M is different from the one on 650D (I mean registers values in this case).

I think it worth adding an option to toggle among "240 MHz" and "240 MHz (H)" presets for 650D / 700D, "240 MHz (H)" could be more stable on some SD cards.

[Walter Schulz]

I have *no* problems on both cams running benchmarks! Both cards perform well with SDR 104.

I can do at least 6 minutes (haven't tested longer sessions yet) with Samsung PRO Plus and 1280p mode. For both cams.

Have to redo some tests to see if fallback mode is present after breaks for Sandisk card.

EDIT:
=======
Nope!
EOS M. This time Sandisk took 10:03 in 1280p mode to break down after going "red" a few times. SDR 50 mode.
And it *does not* fallback to 20 MByte/s. Benchmark in movie mode is around 77 MByte/s after forced stop.

Calculated 83.3 MByte/s for recording.

=======

[Damiafix]

Hi everyone,

I would like to share my experience with a card which is not listed as a good choice for 240Mhz overclock, but it works to me.

Camera:  Canon 5d Mark III
Firmware: 1.1.3
ML settings:  card spanning and 240mhz overclock activated.
ML build: Danne's crop rec 4k_mlv_snd_isogain_1x3_presets_2023Feb03.5D3113
SD card: Lexar Professional 1667x SD card 128 GB, SDXC UHS-II, up to 250 MB/s. (camera low-level formatting)



CF card: Lexar Professional CF 128 GB 1066x (160 MB/s) UDMA 7 (camera
low-level formatting)
PC card reader: Trascend TS-RDF9K USB 3.1/3.0

Benchmarks in video mode

Sd card benchmark:

Sd and CF card benchmark:


Benchmarks in photo mode:
Sd card benchmark:

Sd and CF card benchmark:


CrystalDisk Mark benchmark:


According to the list of Sd 'working' cards under 240Mhz overclock, I bought a SanDisk 128 GB Extreme PRO, SDXC up to 200 MB/s, UHS-I, Class10, U3, V30. Unfortunately overclock doesn't work properly, in my case. I mean it works for a while and I can run some benchmarks:

Benchmarks in video mode:

160Mhz overclock

192Mhz overclock

240Mhz overclock


If I try to record a video, under 240Mhz overclock, the camera becomes unstable. After that, if I run any benchmars I get unreal speed readings:

240Mhz


Nothing to do even lowering the overclock to 160Mhz
160Mhz


The camera, paired to the overclocked SandDisk, isn't stable at all. The situation doesn't change switching from SDR 104  to SDR 50 or warming  the card up.  Peraphs the problem is just limited to such a card. 

My SanDisk 128 GB Extreme Pro:




CrystalDisk Mark benchmark:


Under PC, values seem to be coherent with the results of other users. 

Any possible setting before returning it to the seller (bought by Amazon) and buying the 170mb/s version? It would be warmly appreciated.

Thanks for your support.

All the best.

[Walter Schulz]

Can you share a screenshot with Sandisk Extreme Pro R200/W90 showing those read numbers?

[bobolee]

It seems that this SanDisk card has no problem in EOS M/700D,but 5DM3

[Damiafix]

It seems that this SanDisk card has no problem in EOS M/700D,but 5DM3

Hi Bobolee,

thanks for writing. It is a bit weird since there are users who have a similar setup as mine, and they can overclock the SanDisk extreme pro 200mb/s keeping the camera stable. I am trying to understand if it is a problem of settings or the card itself.

[names_are_hard]

The name written on the card doesn't mean much.  Sometimes they're fake, sometimes they're legit but the same name is used for a different production run with different characteristics.

Bobolee is speculating and doesn't really know if there is some camera / card incompatibility.  Personally I think it's unlikely.

Listen to Walter, he has lots of experience in this area.

[Damiafix]

The name written on the card doesn't mean much.  Sometimes they're fake, sometimes they're legit but the same name is used for a different production run with different characteristics.

Bobolee is speculating and doesn't really know if there is some camera / card incompatibility.  Personally I think it's unlikely.

Listen to Walter, he has lots of experience in this area.

Thanks so much, it makes total sense. Just to share some other infos about my piece of SanDisk Extreme Pro, It follows what ML CID Info reports.

The card seems to be made by SanDisk:


And I have to say that the package seems to be genuine too:

Can you share a screenshot with Sandisk Extreme Pro R200/W90 showing those read numbers?

Walter are you referring to me? I am not sure.

Best.

[Walter Schulz]

Walter are you referring to me? I am not sure.

Sorry, missed the pics you shared. I see the problem now.
I'm a bit confused TBH. It doesn't look like an error I seen before.
Are there any other modules loaded? If so: Please re-test with only bench.mo and sd_uhs.mo loaded.

[Damiafix]

Sorry, missed the pics you shared. I see the problem now.
I'm a bit confused TBH. It doesn't look like an error I seen before.
Are there any other modules loaded? If so: Please re-test with only bench.mo and sd_uhs.mo loaded.

Hi Walter,

thanks. The only modules I am using are sd_uhs.mo and bench.mo.


The card does accept just SDR104, with SDR50 the access to the card itself is compromised and ML doesn't work properly.


Anyway on yesterday, after turning all the modules off/on by "Debug/Disable all modules"and rebooting ML a couple of times I progressively set the overclock to 160Mhz, 192Mhz and finally to 240Mhz and I have been able to run some benchmarks and record some videos outside. It seemed to work for a limited period of time, but the camera became unstable forcing to reboot it frequently. It happened with all the overclock configurations.

I think that with such a card the main problem is the 'read' and not the 'write', even though the camera is too unstable.

In fact If I try to play a recorded video I frequently get error messages. After that rebooting ML is the only solution.
It follows one of the errors which I get during the play:


They follow the VIDEO settings, with all the hacks activated (with or without hacks makes no difference):







Canon settings. I don't know if they can affect the stability, but with the SD Lexar Professional 1667x SD card 128 GB, SDXC UHS-II, up to 250 MB/s and the same settings I have no problems.


Anyway I wish confirming the usability of the Lexar Professional CF 128 GB 1066x, which even under 240Mhz overclock gives back very good numbers (and it works very well with the Lexar SD):


The benchmark SD (SanDisk Extreme Pro 200mb/s) + CF under 240Mhz, when the camera is still a bit stable, is good too:


I don't understand what's the issue with the SanDisk Extreme Pro. I will probably return it if I can't find a solution.

Thanks for any advice. Best.

[123kid]

Hey,

i dont if somebody has this issue, but i can only record with on my 5dmarkiii about 18mb/s write speed.
i used several san disk pro extreme sd cards..but i cant get more than 20mb/s write speed.

i have the 5dmarkiii with firmware 1.2.3 and the latest magic lantern version on the sd cards...

any help?

[Walter Schulz]

Please do not crosspost/spam.

[123kid]

Someone testet a sd/tf card with a Cf Card Adapter??

i will test it if there are any speed changes..

https://www.amazon.de/Yunseity-Speicherkarte-Kartenleser-Speicherkartenadapter-Hochgeschwindigkeitskamera-Schwarz/dp/B09GG2959L/ref=sr_1_11?__mk_de_DE=%C3%85M%C3%85%C5%BD%C3%95%C3%91&crid=1EXMKPGFIILBI&keywords=cf%2Bcard%2Badapter%2Btf&qid=1697374166&s=computers&sprefix=cf%2Bcard%2Badapter%2Btf%2Ccomputers%2C95&sr=1-11&th=1

[Walter Schulz]

No support by ML project.
https://wiki.magiclantern.fm/faq#ml_won_t_work_with_my_sd-to-cf_adapter