Persivore and Highland3r's bench session
- Thread starter Highland3r
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Highland3r
New member
The day was a partial success - really wanted a 100% overclock from the Celly, we'd have gotten it but it seems the board wouldnt boot at 266 FSB or above, we're assuming due to a change in chipset strap here and without a version of clockgen we were unable to clock from windows.
The day was about testing and having a bit of a play more than anything. It's the first time either of us have dealt with dry ice and we've learnt LOADS.
It's MUCH more fun than benching with a single stage, there's another angle as you have to watch the temps all the time adding more pellets as required.
It's also a shame we didnt get chance to freeze some GPU's but the tube didnt make it back in time
Utterly shocked at how well the P5B clocked too. Persivore didnt do a chipset or MCH mod to the board so everything was running stock on that front. Still managed to pull 500 FSB with ease, would probably go further too had we had the time to test.
So, onto the results -
This was the best pi 1m time of the day. So SO close to 10 secs, we just ran out of time at the end and couldnt get a run under 11 Have just noticed that this was run at the same speed as the 32m run so theres certainly room to improve there!
32m run. Just what it says on the tin!
Due to time limits we didnt really get chance to do much more than this today. As I said above, it was mostly about learning a new cooling method. There's a little ICE left, so might have another stab at things tomorrow.
Temps wise, we think the contact when running the Conroe was a little poor. We saw -56 in bios initially, and this was down to ~ -47 after a few hours. Temp probe stuck to the base of the tube read ~ -67-68 under load and -70 idle.
Even after a good 4 hour straight run (removing the tube twice during this time) there wasnt an ounce of condensation. Everything was dry as a bone, just what we like to see :thumb:
Sorry for the lack decent pictures and interesting results. 4.6ghz from a conroe, 500 FSB from a sub- 100 GBP mobo and 5+ ghz from a celeron aren't bad for DICE nubbins....
Will get the results posted in the MBOT threads later, we both have some to put up should help the rankings out a little
The day was about testing and having a bit of a play more than anything. It's the first time either of us have dealt with dry ice and we've learnt LOADS.
It's MUCH more fun than benching with a single stage, there's another angle as you have to watch the temps all the time adding more pellets as required.
It's also a shame we didnt get chance to freeze some GPU's but the tube didnt make it back in time
Utterly shocked at how well the P5B clocked too. Persivore didnt do a chipset or MCH mod to the board so everything was running stock on that front. Still managed to pull 500 FSB with ease, would probably go further too had we had the time to test.
So, onto the results -
This was the best pi 1m time of the day. So SO close to 10 secs, we just ran out of time at the end and couldnt get a run under 11
Have just noticed that this was run at the same speed as the 32m run so theres certainly room to improve there!
32m run. Just what it says on the tin!
Due to time limits we didnt really get chance to do much more than this today. As I said above, it was mostly about learning a new cooling method. There's a little ICE left, so might have another stab at things tomorrow.
Temps wise, we think the contact when running the Conroe was a little poor. We saw -56 in bios initially, and this was down to ~ -47 after a few hours. Temp probe stuck to the base of the tube read ~ -67-68 under load and -70 idle.
Even after a good 4 hour straight run (removing the tube twice during this time) there wasnt an ounce of condensation. Everything was dry as a bone, just what we like to see :thumb:
Sorry for the lack decent pictures and interesting results. 4.6ghz from a conroe, 500 FSB from a sub- 100 GBP mobo and 5+ ghz from a celeron aren't bad for DICE nubbins....
Will get the results posted in the MBOT threads later, we both have some to put up should help the rankings out a little
T
Thickbrit
Guest
I always plan to do far more than i ever achieve at such events,time just flies,which usually means a tinge of disappointment too.Actually the results speak for themselves and you guys have done very well,all things considered.I have a feeling your next session will be even stronger.
maverik-sg1
New member
name='Thickbrit' said:
I second that - great job guys, shame you could not do the gpu's at the same time.
Dont forget to enter your scores in the benchmarking sections
Can you also post details of costs and stuff and what you learned (things u should/should not do when coolling with dry ice).
Congrats once more on a great insight to DI cooling.
Cheers
Mav
Highland3r
New member
Cheers guys, results updated in relevant HWBot threads.
Costing wise, It was 70p/Kilo for the Ice, 10 quid for a fish box (transport) and ~ 25 for delivery. Came to 60 GBP all in for 20kg.
Should have ordered 30kilos however as, by the time it was delivered just under 1/2 was gone
1/2 L Acetone was ~ 6 quid from ebay. We used just over 1/2 a bottle through the day.
The below is by no means "the gospel" if anyones got an comments/tips/tricks that'd be great.
What we learnt - Don't overfill the tube. We had the best temps with smaller amounts of Ice. Usually just enough to have a healthy bubbling sound.
Found adding more ice tended to lead to a slushy mess at the bottom of the tube.
Don't need a lot of acetone either, around an inch in the bottom was plenty. In our case, due to the construction of the Chilly tubes we filled to just above the top of the evap in the tube. Seemed to work quite well.
It's also worth having a stirring rod handy to break up clumps if they form. Not so much of an issue if you don't overfill the tube though, as things tend to run pretty freely.
Hoping to sort another session late next month if anyones interested. Have some unfinished business with this CPU. Pretty sure 4.8ghz should be achievable with a little more vcore and better contact
<edit> Pic taken just after we pulled the tube. Looking back we could have gotten away with less Vaseline, everything was bone dry. However its better to be safe than sorry. </edit>
Costing wise, It was 70p/Kilo for the Ice, 10 quid for a fish box (transport) and ~ 25 for delivery. Came to 60 GBP all in for 20kg.
Should have ordered 30kilos however as, by the time it was delivered just under 1/2 was gone
1/2 L Acetone was ~ 6 quid from ebay. We used just over 1/2 a bottle through the day.
The below is by no means "the gospel" if anyones got an comments/tips/tricks that'd be great.
What we learnt - Don't overfill the tube. We had the best temps with smaller amounts of Ice. Usually just enough to have a healthy bubbling sound.
Found adding more ice tended to lead to a slushy mess at the bottom of the tube.
Don't need a lot of acetone either, around an inch in the bottom was plenty. In our case, due to the construction of the Chilly tubes we filled to just above the top of the evap in the tube. Seemed to work quite well.
It's also worth having a stirring rod handy to break up clumps if they form. Not so much of an issue if you don't overfill the tube though, as things tend to run pretty freely.
Hoping to sort another session late next month if anyones interested. Have some unfinished business with this CPU. Pretty sure 4.8ghz should be achievable with a little more vcore and better contact
<edit> Pic taken just after we pulled the tube. Looking back we could have gotten away with less Vaseline, everything was bone dry. However its better to be safe than sorry. </edit>
advancedkill
New member
Why did you cover up part of the pic of the cpu, where the writing is? (oh, what does the writing mean - I usually just look at the box)
What your doing looks great - hope you get some good results!
What your doing looks great - hope you get some good results!
Highland3r
New member
For anyone thats interested, another 30kg landed at the front door yest ready for round 2
Writing covered up incase someone feel's the need to nick CPU codes to RMA their own chips. Pretty unlikely tbh but all the relevant info is still available
Writing covered up incase someone feel's the need to nick CPU codes to RMA their own chips. Pretty unlikely tbh but all the relevant info is still available
maverik-sg1
New member
oooo round 2 - reminds me gotta send persi me P5B fr soem modded action for a quick return to benching in the near future
Highland3r
New member
name='maverik-sg1' said:oooo round 2 - reminds me gotta send persi me P5B fr soem modded action for a quick return to benching in the near future
Ah you're heading that route too eh
We've got another mobo to try this time round too, something a little "different" from the norm. Assuming we can push the FSB up we could see some rather nice numbers from it too.
Running at the same speed as the P5B, Pi 1m was around 1/3rd sec quicker running on an untweaked OS etc. Fingers crossed we can get the board above 500mhz (damn lack of unlocked multi's
)Highland3r
New member
Some pics from today so far...
Temps are MUCH MUCH better than the last session. We're seeing ~ -46 in bios @ 4.68ghz/1.78 vCore now, compared to low 20's last time around.
Also to add, ran some benchies yesterday with isoproply alchohol and temps were to be frank shocking. -60 at tubes base, with -22 in bios @ ~ 4.65ghz. So, in short isopropyl sucks for dice
Speed wise, we've hit the max of my E6600 on sensible voltage, just switching over to Persivores now so fingers crossed we'll go a bit further.
Temps are MUCH MUCH better than the last session. We're seeing ~ -46 in bios @ 4.68ghz/1.78 vCore now, compared to low 20's last time around.
Also to add, ran some benchies yesterday with isoproply alchohol and temps were to be frank shocking. -60 at tubes base, with -22 in bios @ ~ 4.65ghz. So, in short isopropyl sucks for dice
Speed wise, we've hit the max of my E6600 on sensible voltage, just switching over to Persivores now so fingers crossed we'll go a bit further.
Highland3r
New member
Mixed bag today. Temps were awsome think we've finally got contact etc licked with the Chilly.
Both CPU's maxed at pretty much the same place in the end, could well be mobo limits perhaps. That needs some more investigation.
The "other" motherboard mentioned was Abit AB9, also 965 chipset but doesnt run 1333 strap over 400 FSB. At 450 it was 1/3rd sec quicker than the P5B with slower memory. However it can't match the P5B for overall FSB.
Needs some work on chipset cooling it seems.
Still have ~ 20kg (2 bags) of Ice left should be enough for some more runs later/tomorrow all being well.
As a note, 30KG is FAR too much for 1 days worth of benching. Based on last time though when we lost ~ 1/3rd before the stuff even arrived I thought it'd be better to get some extra.
Cold weather seems to have helped us out somewhat this time.
http://www.yara.co.uk is where the Ice came from, they'll ship UK wide for about 25 quid.
It's 14.20 for 10KG (+vat) and 6.50 (again + VAT) for a fish box. Fish box will take 2 10kg bags.
If you only want 10kg, then its worth paying extra for a better box as sat on its own in the normal fish boxes you'll loose quite a bit of ice.
Also, as mentioned earlier don't use isoproply alchohol. Temps are ~ 10-15 deg worse than Acetone.
Results:
and
We had a better run with Persivores CPU, but he can have the pleasure of posting that one!
Need to get some 3d done to shut Kenny up now (love ya really mate)
Both CPU's maxed at pretty much the same place in the end, could well be mobo limits perhaps. That needs some more investigation.
The "other" motherboard mentioned was Abit AB9, also 965 chipset but doesnt run 1333 strap over 400 FSB. At 450 it was 1/3rd sec quicker than the P5B with slower memory. However it can't match the P5B for overall FSB.
Needs some work on chipset cooling it seems.
Still have ~ 20kg (2 bags) of Ice left should be enough for some more runs later/tomorrow all being well.
As a note, 30KG is FAR too much for 1 days worth of benching. Based on last time though when we lost ~ 1/3rd before the stuff even arrived I thought it'd be better to get some extra.
Cold weather seems to have helped us out somewhat this time.
http://www.yara.co.uk is where the Ice came from, they'll ship UK wide for about 25 quid.
It's 14.20 for 10KG (+vat) and 6.50 (again + VAT) for a fish box. Fish box will take 2 10kg bags.
If you only want 10kg, then its worth paying extra for a better box as sat on its own in the normal fish boxes you'll loose quite a bit of ice.
Also, as mentioned earlier don't use isoproply alchohol. Temps are ~ 10-15 deg worse than Acetone.
Results:
and
We had a better run with Persivores CPU, but he can have the pleasure of posting that one!
Need to get some 3d done to shut Kenny up now (love ya really mate
)
T
Thickbrit
Guest
Good job guys,nice results too.
Highland3r
New member
Cheers guys.
Anyone know any tweaks pi wise other than those posted in K404's thread? Still can't help but feel our scores are a little on the high side for the clocks we're running.
32M especially, would expect to see a good few seconds quicker, unless it is all down to the crappy strap the P5B's running
Anyone know any tweaks pi wise other than those posted in K404's thread? Still can't help but feel our scores are a little on the high side for the clocks we're running.
32M especially, would expect to see a good few seconds quicker, unless it is all down to the crappy strap the P5B's running
Highland3r said:Cheers guys.
Anyone know any tweaks pi wise other than those posted in K404's thread? Still can't help but feel our scores are a little on the high side for the clocks we're running.
32M especially, would expect to see a good few seconds quicker, unless it is all down to the crappy strap the P5B's running
maybe wheres kennys thread
Highland3r
New member
Done mate
Highland3r
New member
Final runs updated in relevant HWbot threads.
Managed to improve Pi a little more and 3d results are ok. Couldnt hammer the 7900 as much as i'd have liked though as its been sold
Pretty pleased with the results however, next time we might have to move onto something a little colder or go in search of more performance friendly motherboards for the E6600's
Managed to improve Pi a little more and 3d results are ok. Couldnt hammer the 7900 as much as i'd have liked though as its been sold
Pretty pleased with the results however, next time we might have to move onto something a little colder or go in search of more performance friendly motherboards for the E6600's
