16.235s SuperPi 1m Phenom II 955

[Slappa]

chew*

Great work getting sub 16s on the gigabyte......nothing is linear....everything is possible :P

I did some more work last night but I'm limited on my chip. Even with a low 23C idle I cannot superpi at 4231MHz on my 955. I'm also limited at my ram, it is at its max almost. I did get 16.234s though.,... .001s faster

When I come back with a diff chip and a new set of ram, getting 15s will be my goal with the gigabyte board....

It will take a lot of work....sleepless nights, maybe even weeks.....but I'll try.

[FlanK3r]

and with DDR2 its impossible under 16 :-/...with AIR cooling

[Slappa]

and with DDR2 its impossible under 16 :-/...with AIR cooling

nothing is impossible

[Zeus]

4250 is gonna be 16 flat. Need 4280.

You might be right.



Still 25ºC ambient here.

[Slappa]

You might be right.


Still 25ºC ambient here.

Chew*'s always right

[chew*]

Nothing is impossible....Only highly improbable......

So lets see where were we. I maxxed at 1824 1.95v.....I was bored so I decided to tackle this some more plus Msimax was me on aim becasue he matched me and passed me.

A little competition goes a long way

Limited to 1.95v still..........







I had no choice but to slack off on this

[Slappa]

An individual told me that anything is possible....and I believe My mind has been freed......

I have come across a LOT over the past 3 hours.

First off, I removed the heatspreaders on my ram to find that the IC's were Elpidas. This is GREAT considering this ram is $42 USD.

Building upon that finding, I changed around some timings and tuned my ram again.

The outcome was that I was able to hit 7-8-7-20-1T @ 1800MHz 1.65V for 1m runs. Haven't tried 32m yet. But Remember, this is ram that is binned at 1333MHz 7-7-7-18T 1.6V

Did not take any Screenshots yet.....you can expect them tomorrow evening though.

[Zeus]

Nice find man! If they are Elpida Hypers be carefull not to kill them as some seem to die by only just looking at 'm.

All you need now is a cpu that will clock better.

[Slappa]

Nice find man! If they are Elpida Hypers be carefull not to kill them as some seem to die by only just looking at 'm.

All you need now is a cpu that will clock better.

They are regular elpidas.....which are elpida hypers from the reject bin...so they should go pretty high

Ehh I think I can take you on with the same cpu.

I'll try tonight maybe

[m411b]

*chew, what NB vid are you using? If you dont mind me asking. Im using .5 over mormal just to be stable @ 2800mhz, and had to use looser timings on ram to get there!

[Zeus]

Bring it on man!

I've been testing to find the limit for CPU-NB for 1M stabilty.

Turns out it maxes somewhere at 3050MHz with 1.3875V and still a 24ºC ambient.

Raising volts to 1.4V didn't do much so it seems i've hit the limit on that, unless i can get the temps down off course.

I think this 955BE is an average clocker but it clocks better than my former 940BE, that's for sure.

Did you make any progress yet?

[chew*]

*chew, what NB vid are you using? If you dont mind me asking. Im using .5 over mormal just to be stable @ 2800mhz, and had to use looser timings on ram to get there!

All those results above are on phase change except the asus.....voltage is chip to chip dependant and motherboard dependant......I have one chip here that needs crazy volts just to do 2600.......

[m411b]

Just water! 28 minutes prime stable now. CPU *44c under load and *30c idle I think my ram is holding me back. Im @ 25-8-7-7 w/ 1.95 1600mhz, but stable with Crucial ballistics 1333.

[Slappa]

Bring it on man!

I've been testing to find the limit for CPU-NB for 1M stabilty.

Turns out it maxes somewhere at 3050MHz with 1.3875V and still a 24ºC ambient.

Raising volts to 1.4V didn't do much so it seems i've hit the limit on that, unless i can get the temps down off course.

I think this 955BE is an average clocker but it clocks better than my former 940BE, that's for sure.

Did you make any progress yet?

Your chip is stronger than mine.

I need +.525V on the CPU-NB to get 3042MHz 1m

Your cores go higher too.

I will be able to beat your time, been testing now....but the only way is to lower my ambient dramatically....which means huge fan +window open

[Zeus]

What is the default value for NB vid? Isn't that 1.15V? That would mean you're pumping a whopping 1.64V into that CPU-NB!

I think i degraded the NB of my 940 by pumping 1.47V into it with the stock cooler. It was always able to run 2.8GHz with NBvid at auto but after i pushed that volts through it i never got it to do that again.

It could have been the 2,5Vdimm i used as well, i don't really know but i'd rather be safe than sorry so i will stay below 1.45V on th NB to be sure.

[Slappa]

What is the default value for NB vid? Isn't that 1.15V? That would mean you're pumping a whopping 1.64V into that CPU-NB!

I think i degraded the NB of my 940 by pumping 1.47V into it with the stock cooler. It was always able to run 2.8GHz with NBvid at auto but after i pushed that volts through it i never got it to do that again.

It could have been the 2,5Vdimm i used as well, i don't really know but i'd rather be safe than sorry so i will stay below 1.45V on th NB to be sure.

Killing hardware is the last of my worries

[FlanK3r]

how much u need at 2800-2900MHz CPU-NB? I have problem with +0.25 at 2800+ at NB

[Slappa]

how much u need at 2800-2900MHz CPU-NB? I have problem with +0.25 at 2800+ at NB

All chips require different amounts.....

Personally, mine needs +.4 - +.475 for 2800-2900

[Slappa]

Finally beat your score :P

Afraid I can't go much further as both my ram and CPU seem to be maxed/very close to max. Plus I had to have a huge box fan and my window open for this one.

Once again, Look at coretemp for core frequencies.

[Zeus]

Hey Slappa,

First of all congrats on that very nice score.

You did beat my score with my 940BE, but not my best with my 955BE or you posted the wrong screenshot.

Check out post 54 in this thread. (16.078sec)

Sorry to rain on your parade my friend.

[Slappa]

Hey Slappa,

First of all congrats on that very nice score.

You did beat my score with my 940BE, but not my best with my 955BE or you posted the wrong screenshot.

Check out post 54 in this thread. (16.078sec)

Sorry to rain on your parade my friend.

Oh heh

I didn't even see that one

Ah well...

Still on a $42 set of ram...and my cpu won't go that high...and ASUS is better for superpi

[FlanK3r]

whau, nice socre, il try today, but its hot . I must evening and too open window . But my PC is about 3m from window and im too lazy get PC nearer. But hope for 20 Celsius temperature evening .

[Zeus]

This morning we got torrential rain accompanied with some fresh dutch air.

Conditions i just had to use to swing things in my favour, work had to wait!

With the pc in front of the backdoor sub 16 seconds came way too easy:



Nice to have chew* proven wrong as 4260MHz was enough, efficiency of this board is second to none it seems.

Off course i didn't stop there, i have a few better ones but i'm not gonna spill the beans yet, i'll wait for your new CPU so i can keep you on your toes, lol.

Mind you, this is all done with 4 cores, so not just one core clocked all the way up with the other 3 sitting at girly speeds.

I'm using the tweak it function to oc the fsb which works like a charm.

C'mon Slappa!! --Your turn. (or whoever feels like joining the race)

[FlanK3r]

very nice Zeus, how is your the best max AIR validation? Great chip, i mean...

[Slappa]

This morning we got torrential rain accompanied with some fresh dutch air.

Conditions i just had to use to swing things in my favour, work had to wait!

With the pc in front of the backdoor sub 16 seconds came way too easy:


Nice to have chew* proven wrong as 4260MHz was enough, efficiency of this board is second to none it seems.

Off course i didn't stop there, i have a few better ones but i'm not gonna spill the beans yet, i'll wait for your new CPU so i can keep you on your toes, lol.

Mind you, this is all done with 4 cores, so not just one core clocked all the way up with the other 3 sitting at girly speeds.

I'm using the tweak it function to oc the fsb which works like a charm.

C'mon Slappa!! --Your turn. (or whoever feels like joining the race)

Very nice score.

I'll try my best....however don't expect me to win without a new set of ram first :P

Also, as you can see from chew*'s results.....it will be challenging on this motherboard.