Apologies in advance if this is too OT.
I recently installed a new system based on an MSI B650-P motherboard with an AMD Ryzen 7600 and Corsair DDR5 RAM. The RAM specs show a recommended frequency of 5200 MHz, but the UEFI screen shows it running at 4800MHz (even though it also notes the correct spec). Here's a screenshot link:
https://drive.google.com/file/d/1Z21GpYtO9jgNA5RDVh6qz2EShbVCRWCw/view?usp=s...
The MSI docs are atrocious and I can't see any way of changing the DRAM frequency.
Not a big deal really but if anyone has any ideas I'd appreciate the feedback.
poc
Patrick O'Callaghan writes:
Apologies in advance if this is too OT.
I recently installed a new system based on an MSI B650-P motherboard with an AMD Ryzen 7600 and Corsair DDR5 RAM. The RAM specs show a recommended frequency of 5200 MHz, but the UEFI screen shows it running at 4800MHz (even though it also notes the correct spec). Here's a screenshot link:
https://drive.google.com/file/d/1Z21GpYtO9jgNA5RDVh6qz2EShbVCRWCw/view? usp=sharing
The MSI docs are atrocious and I can't see any way of changing the DRAM frequency.
Not a big deal really but if anyone has any ideas I'd appreciate the feedback.
Having recently (within the last year), built a new server, here's what I did.
Step 1: bought all the hardware: motherboard, case, RAM, HDDs, video card.
Step 2: hooked everything up
Step 3: turned everything on
Step 4: Profit
The server also used DDR5 RAM, I only know it because I used pcpartpicker.com to prepare the list of components I needed to buy, and the line item for the RAM modules said "DDR5". I have no idea what actual frequency they run on, and I don't care. They work. The server runs.
On Mon, Aug 19, 2024 at 6:18 AM Patrick O'Callaghan pocallaghan@gmail.com wrote:
Apologies in advance if this is too OT.
I recently installed a new system based on an MSI B650-P motherboard with an AMD Ryzen 7600 and Corsair DDR5 RAM. The RAM specs show a recommended frequency of 5200 MHz, but the UEFI screen shows it running at 4800MHz (even though it also notes the correct spec). Here's a screenshot link:
https://drive.google.com/file/d/1Z21GpYtO9jgNA5RDVh6qz2EShbVCRWCw/view?usp=s...
The MSI docs are atrocious and I can't see any way of changing the DRAM frequency.
Not a big deal really but if anyone has any ideas I'd appreciate the feedback.
With the caveat that I haven't built an AM5 system yet, can you find any settings for AMP? I think this is the AMD equivalent of XMP.
Thanks, Richard
On Mon, 2024-08-19 at 07:49 -0400, Sam Varshavchik wrote:
The server also used DDR5 RAM, I only know it because I used pcpartpicker.com to prepare the list of components I needed to buy, and the line item for the RAM modules said "DDR5". I have no idea what actual frequency they run on, and I don't care. They work. The server runs.
Pretty much where I am too, which is why I said it was no big deal. I bought the mobo, cpu and RAM from scan.co.uk as a bundle, so I presume it's all good, but I just wanted to scratch that itch.
poc
On Mon, 2024-08-19 at 06:57 -0500, Richard Shaw wrote:
With the caveat that I haven't built an AM5 system yet, can you find any settings for AMP? I think this is the AMD equivalent of XMP.
It appears to be using an A-XMP profile (according to the screenshot I posted). I just wonder why it says it's at 4800 instead of 5200.
poc
On Mon, Aug 19, 2024 at 7:08 AM Patrick O'Callaghan pocallaghan@gmail.com wrote:
On Mon, 2024-08-19 at 06:57 -0500, Richard Shaw wrote:
With the caveat that I haven't built an AM5 system yet, can you find any settings for AMP? I think this is the AMD equivalent of XMP.
It appears to be using an A-XMP profile (according to the screenshot I posted). I just wonder why it says it's at 4800 instead of 5200.
Google didn't provide anything immediately useful but for AM4 systems and XMP profiles you want the memory frequency to be an even multiple of the CPU bus frequency. Check the CPU page in the BIOS and see if that's the case. It may be the ideal frequency for your processor.
Thanks, Richard
On 19/8/24 9:17 pm, Patrick O'Callaghan wrote:
Apologies in advance if this is too OT.
I recently installed a new system based on an MSI B650-P motherboard with an AMD Ryzen 7600 and Corsair DDR5 RAM. The RAM specs show a recommended frequency of 5200 MHz, but the UEFI screen shows it running at 4800MHz (even though it also notes the correct spec). Here's a screenshot link:
https://drive.google.com/file/d/1Z21GpYtO9jgNA5RDVh6qz2EShbVCRWCw/view?usp=s...
The MSI docs are atrocious and I can't see any way of changing the DRAM frequency.
Not a big deal really but if anyone has any ideas I'd appreciate the feedback.
poc
I do not have this mobo or DDR5 but thought one should consider the mobo as limiting the speed. Some, will limit the DRAM speed as more DIMMs are added.
Try to install only one DIMM and see if it makes a difference.
Also, I see in the image that you installed in slots A2/B2. Is this what the doco recommends?
HTH
Your BIOS is probably set in EZ mode and as Richad said, you probably need to tweak some XMP or EXPO modes in the BIOS to get the most out of the modules.
The motherboard manual is here: https://download.msi.com/archive/mnu_exe/mb/PROB650-PWIFI.pdf But doesn't go into a ton of detail about specific BIOS settings.
The BIOS manual is: https://download.msi.com/archive/mnu_exe/mb/AMDAM5BIOS.pdf
I've just had a fiddle in my AM5 BIOS and while it's not *immediately* obvious, you can enable EXPO by clicking the A-XMP profile 'button' until it's shaded.
cf: https://photos.app.goo.gl/GxyCkoJQeX7DJMLx9
Save and exit. Your machine will restart itself a few times and then you should get the most out of your memory modules.
On Mon, 19 Aug 2024 at 12:18, Patrick O'Callaghan pocallaghan@gmail.com wrote:
Apologies in advance if this is too OT.
I recently installed a new system based on an MSI B650-P motherboard with an AMD Ryzen 7600 and Corsair DDR5 RAM. The RAM specs show a recommended frequency of 5200 MHz, but the UEFI screen shows it running at 4800MHz (even though it also notes the correct spec). Here's a screenshot link:
https://drive.google.com/file/d/1Z21GpYtO9jgNA5RDVh6qz2EShbVCRWCw/view?usp=s...
The MSI docs are atrocious and I can't see any way of changing the DRAM frequency.
Not a big deal really but if anyone has any ideas I'd appreciate the feedback.
poc
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On Mon, 2024-08-19 at 07:54 -0500, Richard Shaw wrote:
On Mon, Aug 19, 2024 at 7:08 AM Patrick O'Callaghan pocallaghan@gmail.com wrote:
On Mon, 2024-08-19 at 06:57 -0500, Richard Shaw wrote:
With the caveat that I haven't built an AM5 system yet, can you find any settings for AMP? I think this is the AMD equivalent of XMP.
It appears to be using an A-XMP profile (according to the screenshot I posted). I just wonder why it says it's at 4800 instead of 5200.
Google didn't provide anything immediately useful but for AM4 systems and XMP profiles you want the memory frequency to be an even multiple of the CPU bus frequency. Check the CPU page in the BIOS and see if that's the case. It may be the ideal frequency for your processor.
This is an AM5 system. Thanks anyway.
poc
On Mon, 2024-08-19 at 22:55 +1000, fedora@eyal.emu.id.au wrote:
On 19/8/24 9:17 pm, Patrick O'Callaghan wrote:
Apologies in advance if this is too OT.
I recently installed a new system based on an MSI B650-P motherboard with an AMD Ryzen 7600 and Corsair DDR5 RAM. The RAM specs show a recommended frequency of 5200 MHz, but the UEFI screen shows it running at 4800MHz (even though it also notes the correct spec). Here's a screenshot link:
https://drive.google.com/file/d/1Z21GpYtO9jgNA5RDVh6qz2EShbVCRWCw/view?usp=s...
The MSI docs are atrocious and I can't see any way of changing the DRAM frequency.
Not a big deal really but if anyone has any ideas I'd appreciate the feedback.
poc
I do not have this mobo or DDR5 but thought one should consider the mobo as limiting the speed. Some, will limit the DRAM speed as more DIMMs are added.
Try to install only one DIMM and see if it makes a difference.
Maybe. I doubt I'll go to that much trouble though.
Also, I see in the image that you installed in slots A2/B2. Is this what the doco recommends?
I know it looks odd, but yes, this is the recommended setup.
poc
On Mon, 2024-08-19 at 14:10 +0100, Will McDonald wrote:
Your BIOS is probably set in EZ mode and as Richad said, you probably need to tweak some XMP or EXPO modes in the BIOS to get the most out of the modules.
The motherboard manual is here: https://download.msi.com/archive/mnu_exe/mb/PROB650-PWIFI.pdf%C2%A0But doesn't go into a ton of detail about specific BIOS settings.
The BIOS manual is: https://download.msi.com/archive/mnu_exe/mb/AMDAM5BIOS.pdf
Yes, I have those, thanks. They're pretty useless and don't really match what I see on screen.
I've just had a fiddle in my AM5 BIOS and while it's not *immediately* obvious, you can enable EXPO by clicking the A-XMP profile 'button' until it's shaded.
cf: https://photos.app.goo.gl/GxyCkoJQeX7DJMLx9
Save and exit. Your machine will restart itself a few times and then you should get the most out of your memory modules.
That sounds promising. I'll give it a try, thanks.
poc
On Mon, 2024-08-19 at 14:56 +0100, Patrick O'Callaghan wrote:
I've just had a fiddle in my AM5 BIOS and while it's not *immediately* obvious, you can enable EXPO by clicking the A-XMP profile 'button' until it's shaded.
cf: https://photos.app.goo.gl/GxyCkoJQeX7DJMLx9
Save and exit. Your machine will restart itself a few times and then you should get the most out of your memory modules.
That sounds promising. I'll give it a try, thanks.
Tried that. The UI is genuinely terrible. It never actually says EXPO but now it's showing 5200MHz so I'm declaring it solved.
Many thanks.
poc
On 19 Aug 2024, at 13:06, Patrick O'Callaghan pocallaghan@gmail.com wrote:
Pretty much where I am too, which is why I said it was no big deal. I bought the mobo, cpu and RAM from scan.co.uk as a bundle, so I presume it's all good, but I just wanted to scratch that itch.
Raise a tech support ticket with scan, they will help you. Their tech people are knowledgeable.
At least for intel systems ram speed has limits imposed by the CPU and by the motherboard chip set. Maybe 4800 is one of those limits for your AMD parts?
Barry
I recently upgraded to an AM5 system with 128gb ddr5 memory. The lower 4800 is the base frequency. The 5200 might be if you overclocked it.
On Mon, 19 Aug 2024 07:54:46 -0500 Richard Shaw wrote:
On Mon, Aug 19, 2024 at 7:08 AM Patrick O'Callaghan pocallaghan@gmail.com wrote:
On Mon, 2024-08-19 at 06:57 -0500, Richard Shaw wrote:
With the caveat that I haven't built an AM5 system yet, can you find any settings for AMP? I think this is the AMD equivalent of XMP.
It appears to be using an A-XMP profile (according to the screenshot I posted). I just wonder why it says it's at 4800 instead of 5200.
Google didn't provide anything immediately useful but for AM4 systems and XMP profiles you want the memory frequency to be an even multiple of the CPU bus frequency. Check the CPU page in the BIOS and see if that's the case. It may be the ideal frequency for your processor.
Thanks, Richard
On Mon, 2024-08-19 at 14:17 -0400, doug.lindquist@atlanticbb.net wrote:
I recently upgraded to an AM5 system with 128gb ddr5 memory. The lower 4800 is the base frequency. The 5200 might be if you overclocked it.
The overclocking options start at 5400, so I don't think that's it. The DRAM spec is 5200 and I now have it working at that frequency.
poc
On Mon, 2024-08-19 at 22:02 +0100, Patrick O'Callaghan wrote:
The overclocking options start at 5400, so I don't think that's it. The DRAM spec is 5200 and I now have it working at that frequency.
Makes me wonder if the automatic selection is based on some unmentioned criteria (*lowest* common denominator instead of highest, most stable workbench testing, temperature ranges, power optimisation, automatic on-demand speed changes, etc).
I was talking with a friend about PC building, and he now prefers to have someone else build for him. His thinking is that they'll know how to set BIOS settings, take anti-static precautions, etc. But I'm fairly certain the average shop knows as much about settings as we do when we research things on the internet. I have no faith in shops taking anti-static precautions. And when it comes to Windows and gaming, people try pushing things to the limit (and beyond), thinking an extra 0.2% speed will actually make a tangible difference. What it's most likely to do is affect stability. And you need a much greater speed increase for you to notice anything.
I just go with the automatic options, in general. Very few of the options are adequately explained anywhere, and very few component specifications are listed beyond the basic speed parameter. About the only options I adjust are quiet fan settings, switching off unnecessary hardware like floppies and parallel ports (though that's no guarantee that they are disabled to the system probing hardware to load drivers), and set boot priorities. i.e. Things where what you can control are immediately obvious.
I have come across broken BIOSes before, where setting some innocuous parameter (like boot floppy before CD-ROM before HDD, instead of CD-ROM before floppy before HDD), caused it to crash and overwrite some other settings. So tweaking is fraught with unpredictability.
The motto is: The universe is against you, you cannot win.
On Tue, 2024-08-20 at 15:36 +0930, Tim via users wrote:
On Mon, 2024-08-19 at 22:02 +0100, Patrick O'Callaghan wrote:
The overclocking options start at 5400, so I don't think that's it. The DRAM spec is 5200 and I now have it working at that frequency.
Makes me wonder if the automatic selection is based on some unmentioned criteria (*lowest* common denominator instead of highest, most stable workbench testing, temperature ranges, power optimisation, automatic on-demand speed changes, etc).
Yes, I think it's just set to the lowest common denominator.
poc
On Tue, Aug 20, 2024 at 6:14 AM Patrick O'Callaghan pocallaghan@gmail.com wrote:
On Tue, 2024-08-20 at 15:36 +0930, Tim via users wrote:
On Mon, 2024-08-19 at 22:02 +0100, Patrick O'Callaghan wrote:
The overclocking options start at 5400, so I don't think that's it. The DRAM spec is 5200 and I now have it working at that frequency.
Makes me wonder if the automatic selection is based on some unmentioned criteria (*lowest* common denominator instead of highest, most stable workbench testing, temperature ranges, power optimisation, automatic on-demand speed changes, etc).
Yes, I think it's just set to the lowest common denominator.
I ran across this article that has some good info:
https://www.xda-developers.com/6-bios-settings-every-new-pc-builder-needs-to...
On Fri, 2024-08-23 at 11:26 -0400, Neal Becker wrote:
I ran across this article that has some good info:
https://www.xda-developers.com/6-bios-settings-every-new-pc-builder-needs-to...
Yes, I had actually read that before asking. Anyway, it's working now.
poc
On Fri, 2024-08-23 at 11:26 -0400, Neal Becker wrote:
I ran across this article that has some good info: https://www.xda-developers.com/6-bios-settings-every-new-pc-builder-needs-to...
I have a bit of an issue with overly simplistic statements like this:
"Secure Boot, one of the most important security features on modern hardware. It checks all the installed software to ensure it can be trusted before the computer boots up, including UEFI firmware drivers, EFI applications, and the installed operating system. Enabling it helps keep you safe from malware"
Most of us, here, I hope know that only really refers to checking that packages are signed to be authenticate and came from a trustworthy source. The less knowledgeable will think it checks that the software is safe to run. It doesn't check its "goodness," so to speak.
Reminds me of the comments you get from people "but I had anti-virus installed" when their systems turns its toes up after they've deliberately ran pirated, or pirating, software. It ain't magic, but it tries to engender too much blind faith.
On Sat, 2024-08-24 at 14:52 +0930, Tim via users wrote:
Reminds me of the comments you get from people "but I had anti-virus installed" when their systems turns its toes up after they've deliberately ran pirated, or pirating, software. It ain't magic, but it tries to engender too much blind faith.
Similarly, I've had to field questions from people who think using a VPN will protect them from malware. Most people have very little idea of what security is all about.
poc
-
Barry -
doug.lindquist＠atlanticbb.net -
fedora＠eyal.emu.id.au -
Neal Becker -
Patrick O'Callaghan -
Richard Shaw -
Sam Varshavchik -
Tim -
Will McDonald