Linus does a test of the new Apex15: https://www.youtube.com/watch?v=KFTMBTDGTx8, a gaming laptop with a Ryzen 3950 in it. And one you can take out....

I need a low cost "test" cpu to confirm that Am4 socket motherboards are boot-able/working.
I am seeing A6 type cpus coming up. And I didn't realize they were Am4 sockets?

Comments/Suggestions?

Thank you.

Tom M

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A proud member of the OFA (Old Farts Association).

I got shipping information on Tuesday for my Threadripper block I ordered in December. Should be here Saturday. Yay!
I also got shipping information that my water flowmeter that was ordered last month and went by ship is finally in country. Think it will show this week also.
So PC building is looking likely this weekend.

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Seti@Home classic workunits:20,676 CPU time:74,226 hours

A proud member of the OFA (Old Farts Association)

I need a low cost "test" cpu to confirm that Am4 socket motherboards are boot-able/working.
I am seeing A6 type cpus coming up. And I didn't realize they were Am4 sockets?

Comments/Suggestions?

Thank you.

Tom M

? ? ? ? A6 cpus are socket FM1 NOT AM4. Won't fit. Check your motherboard manual to see which cpus the BIOS supports.

---

Seti@Home classic workunits:20,676 CPU time:74,226 hours

A proud member of the OFA (Old Farts Association)

I need a low cost "test" cpu to confirm that Am4 socket motherboards are boot-able/working.
I am seeing A6 type cpus coming up. And I didn't realize they were Am4 sockets?

Comments/Suggestions?

Thank you.

Tom M

? ? ? ? A6 cpus are socket FM1 NOT AM4. Won't fit. Check your motherboard manual to see which cpus the BIOS supports.

That's what I thought. TY. Let me scratch around and see if I can find a manual. I am really reluctant to dismount a working cpu from a working system just to see if another MB will boot.
==edit==

Socket Am4 support AMD A-series APU/CPU

===edit===
https://www.biostar.com.tw/app/en/mb/introduction.php?S_ID=882#cpusupport

Tom M

---

A proud member of the OFA (Old Farts Association).

OK, so there's your answer with actual cpu skus. All I had to go on with your terse OP was a search on AMD A6 cpus and all it found was FM1 socket A6 cpus which are 905 pins. Not AM4 socket cpus with 1344 pins. Why I answered they would not fit. Go purchase one of the cheap cpus from your motherboard manual.

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Seti@Home classic workunits:20,676 CPU time:74,226 hours

A proud member of the OFA (Old Farts Association)

OK, so there's your answer with actual cpu skus. All I had to go on with your terse OP was a search on AMD A6 cpus and all it found was FM1 socket A6 cpus which are 905 pins. Not AM4 socket cpus with 1344 pins. Why I answered they would not fit. Go purchase one of the cheap cpus from your motherboard manual.

Sorry.

---

A proud member of the OFA (Old Farts Association).

My X570 MB/Amd 3950x is now producing a surging fan noise.
https://einsteinathome.org/host/12830231
It could be the gpus or the cpu fans or maybe the system fans?

tom@TheMonolith:~$ sudo modprobe nct6775
[sudo] password for tom: 
tom@TheMonolith:~$ sensors
k10temp-pci-00c3
Adapter: PCI adapter
Tdie:         +73.8°C  (high = +70.0°C)
Tctl:         +73.8°C  

nct6797-isa-0a20
Adapter: ISA adapter
in0:                    +1.10 V  (min =  +0.00 V, max =  +1.74 V)
in1:                    +1.00 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
in2:                    +3.33 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
in3:                    +3.30 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
in4:                    +1.00 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
in5:                    +0.18 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
in6:                    +0.28 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
in7:                    +3.33 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
in8:                    +3.30 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
in9:                    +1.79 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
in10:                   +0.00 V  (min =  +0.00 V, max =  +0.00 V)
in11:                   +0.36 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
in12:                   +1.14 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
in13:                   +0.68 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
in14:                   +1.53 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
fan1:                  1488 RPM  (min =    0 RPM)
fan2:                  1440 RPM  (min =    0 RPM)
fan3:                   820 RPM  (min =    0 RPM)
fan4:                   827 RPM  (min =    0 RPM)
fan5:                     0 RPM  (min =    0 RPM)
fan6:                   859 RPM  (min =    0 RPM)
fan7:                  2591 RPM  (min =    0 RPM)
SYSTIN:                 +58.0°C  (high = +80.0°C, hyst = +75.0°C)  sensor = CPU diode
CPUTIN:                 +61.0°C  (high = +115.0°C, hyst = +90.0°C)  sensor = thermistor
AUXTIN0:                +82.0°C  (high = +115.0°C, hyst = +90.0°C)  sensor = thermistor
AUXTIN1:               -128.0°C    sensor = thermistor
AUXTIN2:                +71.0°C    sensor = thermistor
AUXTIN3:                 -2.0°C    sensor = thermistor
SMBUSMASTER 0:          +73.5°C  
PCH_CHIP_CPU_MAX_TEMP:   +0.0°C  
PCH_CHIP_TEMP:           +0.0°C  
PCH_CPU_TEMP:            +0.0°C  
tom@TheMonolith:~$ 

Its almost the noise the gpu fans make during the beginning of the POST.
Any ideas?
There might be a bios upgrade. I have to look.

Tom M

---

A proud member of the OFA (Old Farts Association).

Here's an interesting comparison between compilers for Threadripper and Core-i9:

GCC 10 vs. Clang 10 Compiler Performance On AMD Zen 2 + Intel Cascade Lake


There's quite a surprising contrast there for some of the tests...


Happy cool crunchin',
Martin

---

See new freedom: Mageia Linux
Take a look for yourself: Linux Format
The Future is what We all make IT (GPLv3)

That is usually caused by a BIOS setting in the Monitors section which controls the fans. The cpu fan likely is the culprit. It is responding to the change in temps of the cpu as the load increases and decreases. You can get rid of that by setting the fan smoothing function. Set it to respond to 5, 9 or 13 second averaging or whatever your BIOS provides.

Or change the fan input sensor to not use the cpu and change it to the VRM temps or motherboard temps which don't change that much or that fast. Or just set the fan to disabled and run it at full speed all the time. No more surging. Your 73.8° C. temps for Tdie put it into the range where the BIOS is trying to control the fan speeds. Most BIOS' have a trigger at 70° C.

What kind of cooling are you using and what fan profile?

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Seti@Home classic workunits:20,676 CPU time:74,226 hours

A proud member of the OFA (Old Farts Association)

What I am amazed at is the difference between the Threadripper 2920X and the Ryzen 3950X with respect to the cpu crunch times for Einstein and Universe tasks. I never saw that big a difference with Seti cpu tasks. I guess the Seti optimized cpu apps leveled the playing field for those two processors.

The 3950X crunches the tasks in 1/4 to 1/5 of the time the 2920X requires. And the cpu clocks are exactly the same. Memory is very close to same also. But the enhanced FPU of the Zen 2 architecture blows the older Zen+ architecture out of the water.

Seeing these kind of results makes me want to purchase a Threadripper 3000 cpu so I can enjoy the benefit on that platform. Would require a new motherboard however. The 3960X would have to be the upgrade path as the 3950X already suffices for 32 threads. I have my fancy new Optimus Water Cooling Threadripper 3 cpu block installed and it will certainly handle more wattage and heat from more cores. Supposed to be able to handle a 800W load. I am pulling just under 400W for the 2920X under all-core loading at 4100Mhz.

---

Seti@Home classic workunits:20,676 CPU time:74,226 hours

A proud member of the OFA (Old Farts Association)

What I am amazed at is the difference between the Threadripper 2920X and the Ryzen 3950X with respect to the cpu crunch times for Einstein and Universe tasks. I never saw that big a difference with Seti cpu tasks. I guess the Seti optimized cpu apps leveled the playing field for those two processors.

The 3950X crunches the tasks in 1/4 to 1/5 of the time the 2920X requires. And the cpu clocks are exactly the same. Memory is very close to same also. But the enhanced FPU of the Zen 2 architecture blows the older Zen+ architecture out of the water.

I just saw a newsfeed story from Tom's Hardware (no relation) that said the Amd 3000x (10c/20t) was down to $450USD....

Tom M

---

A proud member of the OFA (Old Farts Association).

there is no such thing as a "3000x" and AMD does not make a 10core processor.

what CPU are you referring to?

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Seti@Home classic workunits: 29,492 CPU time: 134,419 hours

For more comprehensive benchmarking:


100+ Benchmarks Of Amazon's Graviton2 64-Core CPU Against AMD's EPYC 7742


In amongst that lot, there is a very interesting mix of results between running the native 64 cores vs running 128 hyperthreads.


Happy cool crunchin'!
Martin

---

See new freedom: Mageia Linux
Take a look for yourself: Linux Format
The Future is what We all make IT (GPLv3)

there is no such thing as a "3000x" and AMD does not make a 10core processor.

what CPU are you referring to?

Mental error. I meant an Amd 3900x. Sorry.
I have also lately read a review comparing the 3900x to the the latest/greatest Intel (14mm chip) 10 core which is where the other reference was. Plus I just saw a "refresh" rumor for the 3600x-3900x cpus to 3600xt-3900xt to make them even more competitive with Intels latest announced consumer cpus.

Higher ceiling and even more stringent turbo boost tuning. I think.

Tom M

---

A proud member of the OFA (Old Farts Association).

I've only seen a Tom's Hardware article about a proposed R7 3850X and a R7 3750X. Nothing about a refresh of the 3900X.
Everyone is expecting just a 100Mhz bump on base clocks and boost clocks for those two processors and attribute it just to maturation of the node process at TSMC.

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Seti@Home classic workunits:20,676 CPU time:74,226 hours

A proud member of the OFA (Old Farts Association)

I was in microcenter today just browsing. Had the itch to update my main gaming system which is currently an i7-9700k/EVGA z370-micro

I was close to buying a 3900x and motherboard today. They are $389 there. But they didn’t have any proper X470 or X570 mATX motherboards, so I held off.

Then I considered a Z490/i7-10700k combo, but also resisted there too.

Half of me wants to dip my toes in AMD, but also maybe wait for Ryzen 4000, and another part of me wants to maybe stay Intel z490 and see what kind of stuff intel comes out with for 11th gen down the road. And another part of me knows that I don’t really NEED any of this and my existing i7-9700k is adequate for my needs of playing around and playing games every now and then. Decisions decisions.

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Seti@Home classic workunits: 29,492 CPU time: 134,419 hours

If you are not in a hurry to spend that cash burning a hole in your pocket, then just wait another six months for the Ryzen 4000 processors to arrive.

Supposed to be at least a 30% IPC improvement over Zen 2. Don't expect any big gain in clocks, maybe another 100Mhz, but the IPC and power improvements are supposed to blow the socks off the old Zen 2 processors. And another huge improvement in floating point calculations.

The difference in the 3950X Zen 2 FP performance versus the 2920X Zen+ FP performance is 3X - 4X fold as proved by my Universe@home task crunching times.
3950X
2920X

Both hosts run the exact same task types.

Expect the same difference between the 3000 and 4000 processors.

The hints at the microarchitecture changes are looking like the last of the compatible AMD4 socket processors are worth waiting for.

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Seti@Home classic workunits:20,676 CPU time:74,226 hours

A proud member of the OFA (Old Farts Association)

So much for Intel Marketing flaunting unsustainable clock speeds...


See AMD fly away with:

AMD Ryzen 3 3100 Overclocked to Nearly 6 GHz
wrote:

Just how far can you push a budget CPU?...

In an extremis spectacular, we have a riposte on an Intel chip with:


Intel Core i9-10900K + Liquid Helium = 7.707 GHz Record


What next?!

... And ya cannae break tha laws o' physics!


All good fun!

Happy cool crunchin'!
Martin

---

See new freedom: Mageia Linux
Take a look for yourself: Linux Format
The Future is what We all make IT (GPLv3)