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  #191  
Old 1 Week Ago
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Default Re: Zen SuperPI 32M 5G/4G Challenge

See if i can help out with llano.

Msimax has my "lab" and whatever boards i collected. Im fairly certain there may be a completely unabused nib llano board in the inventory.

I had a ton of fun on that platform and liked the direction AMD was headed.

Ryzen reminds me of it which is what i would liked to have seen the direction go instead of BD and why i am enjoying the platform.
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  #192  
Old 1 Week Ago
I.nfraR.ed I.nfraR.ed is offline
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Default Re: Zen SuperPI 32M 5G/4G Challenge

Finally got it (the FM1 board) to post after several tries to force backup bios o reflash main bios.
Managed to do it by shorting GND to #HOLD on the M_BIOS, which basically disables main bios initialization and forces backup bios load, but it didn't work first try.
I've had the same on other Gigabyte boards.
Now off to installing OS and some benching
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Last edited by I.nfraR.ed; 1 Week Ago at 19:35.
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  #193  
Old 4 Days Ago
I.nfraR.ed I.nfraR.ed is offline
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Default Re: Zen SuperPI 32M 5G/4G Challenge

Quote:
Originally Posted by chew* View Post
Look i will give you a lesson in 32m pi analyze 101.

Lets see

32bit xp
No max mem
Consistent loops but weak finish might have been a weak waza or none at all.
Olive theme
Hmm note strap 1/8 he used that might matter
Bios version
Ddr3 and amd that seems like a flare X will check what ic they are.
High speed seems to trump latency
25x multi will have to check odds versus even.

Total summary looks like there was more in it as it hardly looks like a max tuned run...i can beat this easy.

Crazy run though...its 10 secs faster than the fastest llano @ 4.0 and it was not a tuned run based on evidence found in screenshot.

Btw...that run one guess who did it...and years and years ago...so literally i just analyzed my own run as i would any run i see.
Clearly your run is without wazza.
There goes my result and it could be even faster, although this IMC/MB/CPU combo is on the edge of stability as far as mem goes.
Without wazza I was more than 1sec faster than your system.

Some things worth mentioning in case you wonder:
- This higher divider didn't seem slower than 1:8 and it is needed in my case, because the board starts loosing the disks after 154MHz and doesn't even post at 160. Might be the board, might be the CPU. Subtimings that can't be controlled manually from bios seem to be exactly the same as on 1:8 div.
- CAS7 is possible, but it is not faster than CAS8 at least on this board. tRCD 11 is highly unstable, I think that might have better luck with BBSE, but this board is very picky about memory and I used PSC.
- Overall the current number 1 is much slower and very easy to beat. Not many people bothered to run this platform, though, so this is one of the reasons.

PS: Second image is without wazza, first one is my current best.

Well, this is offtopic, but I don't see many people running 32M on Zen anyway.
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  #194  
Old 4 Days Ago
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Default Re: Zen SuperPI 32M 5G/4G Challenge

Nice to see someone finally get llano running fast .

I checked my old post related to my run.

I had said LSC and theme only so like i said i was showing possibilities for someone else to take advantage of.

Anyway nice work infra

Iirc and i think i mention it in the XS llano thread somewhere around 160 ref clk i was dropping a channel.

Maybe that info will help.
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Last edited by chew*; 4 Days Ago at 18:30.
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  #195  
Old 4 Days Ago
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Default Re: Zen SuperPI 32M 5G/4G Challenge

I"m dropping channel roughly at that mem frequency, too. Independant from refclk.
This 1280 was hit or miss, sometimes it boots dual, sometimes single, so I have to turn off and then on until it sees the second channel.
Freezing the CPU might help.

Score could be better for sure and it is not that hard of a platform to figure out, but it was never popular, so not many people benched it. But even without optimizations the current #1 is easy to beat when you dial in everything.

Maybe I should spend some time with LN2, too. This chip is the highest validated on the bot.
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  #196  
Old 4 Days Ago
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Default Re: Zen SuperPI 32M 5G/4G Challenge

Cold will help it but voltage not so much.

Should free up the imc for you a little bit to.

3d is where the platform can get tricky with the apu and how to unlock its potential.

I ran a ton of 3d on it.

Pi was just once to see where it stacked up in the LCC category.

Btw I do not think it is to far off topic...imo ryzen shares far more in common with llano than other arch that amd has released.
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Last edited by chew*; 4 Days Ago at 19:57.
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  #197  
Old 4 Days Ago
I.nfraR.ed I.nfraR.ed is offline
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Default Re: Zen SuperPI 32M 5G/4G Challenge

Yeah, NCLK/Infinity Fabric, although I can actually control the NCLK with this bios, but it really depends. On some bioses it was just auto and this divider was bugged, so 1:8 was the way to go ( I assume this is the reason you ran 1:8), however in my case I don't see a performance penalty if everything is set correctly and this higher divider allows me to use much lower refclk, which seems to be the limiting factor on 1:8 with my setup. I was expecting to see some difference between even and odd dividers, but they are really close in terms of performance.

Might play a little bit and mod the bios to unlock some hidden features (if any), which are available on older beta bioses, although they were quite buggy. vNB is limited to 1.33V, while I've seen much higher on older ones, although I try to be gentle with volts, because higher is not always better, especially on APUs.

Not going to run 3D, but I think it is clear to me what is needed to get a high score.

Haven't seen bigger boards though, this one has rather limited bios options. Guess it might be platform specific, have to dig up some old reviews to see.
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  #198  
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Default Re: Zen SuperPI 32M 5G/4G Challenge

Well its nice to see someone with the drive to push the hardware even if it lacks the global WR potential.

Keep it up I like what I am seeing.

Many seem to misunderstand me and my intentions.

I merely show possibilities and capabilities and love to see people take it above and beyond.
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