Got my JALAPENO today mining at 5.9 Gh/s with some tweaks - page 2.

jhansen858

sr. member

Activity: 364

Merit: 250

Quote from: Littleshop on May 31, 2013, 09:54:00 PM

Quote from: tiberiandusk on May 31, 2013, 09:46:39 PM

Skeptical post is skeptical.

A bunch of people have received Jalapenos now.

35 on this list: http://bfl.ptz.ro/

Please dont accept this information as fact...

1) the information submitted is 100% honor system
2) I have been marking them as delivered based purely on the order dates that have been submitted by matching up what BFL_Jody says compared to what some random person on the internet claims they ordered and when.
3) people frequently put fake orders in showing them ordering 50 mini rigs. I just delete those, however, if somone was just putting what looked like a reasonable order in, I would have no way to verify it and would just add it. It is entirely possible that some of these orders are not real.

If anyone see's any errors / problems with this data, please PM me and I'll correct it.

GenTarkin

legendary

Activity: 2450

Merit: 1002

there any way to overclock them?

vapourminer

legendary

Activity: 4354

Merit: 3614

what is this "brake pedal" you speak of?

in case anyone wondered what the guts look like, heres a (crappy) pic:

k9quaint

legendary

Activity: 1190

Merit: 1000

Quote from: Enigma81 on June 01, 2013, 05:23:05 AM

Quote from: k9quaint on May 31, 2013, 09:03:53 PM

Unfortunately no. You want to increase the air that moves over the entire surface of the heat sink. If you suck, the air will take the shortest path possible through the heat sink blades leaving some surface area with sub-optimal surface flow. If you blow air, it forces air into every nook and cranny of the heat sink increasing airflow over the entire surface. Proper heat sink blade design will prevent back-pressure and eddies.

{Rolls Eyes}

Did you have a specific criticism? Or were you just disagreeing with who posted the information?

vapourminer

legendary

Activity: 4354

Merit: 3614

what is this "brake pedal" you speak of?

Quote from: erk on June 01, 2013, 07:39:29 AM

33C would feel cold to touch, hardly worth having a fan!

heh.

20 C ambient in my basement. also forgot to mention the 140 mm fan is still blowing at it (edited my above post to reflect this).

erk

hero member

Activity: 826

Merit: 500

Quote from: vapourminer on June 01, 2013, 07:36:33 AM

OK tried it. open case, fan blows down.

one other thing I did was remove the heatsink and dab some MX2 around where the now broken up thrmal tape was. originally I was going to use straight MX2 without thermal tape but the chips are bare and I was worried about cracking them. so I left the pieces on and filled it in with MX2. I also applied MX2 to the PCB opposite the 2 hashing chips so the load plate would maybe pull some heat off the back of the PCB.

end result: 33 C temps, 3.1 v. same hash rate though.

33C would feel cold to touch, hardly worth having a fan!

vapourminer

legendary

Activity: 4354

Merit: 3614

what is this "brake pedal" you speak of?

Quote from: vapourminer on June 01, 2013, 05:01:52 AM

interesting, Ill have to try that.

my jally runs 5.56 ghs (2 day ave) @ 38 C and 3.2 v with a 140 mm fan blowing at its intake.

without the fan it was around 44 C and 3.35 v. cant remember the exact hash rate though.

seems the warmer it gets the more volts it gets.

OK tried it. open case, fan blows down. EDIT: same 140 mm fan blowing at it. ambient 20 C

one other thing I did was remove the heatsink and dab some MX2 around where the now broken up thrmal tape was. originally I was going to use straight MX2 without thermal tape but the chips are bare and I was worried about cracking them. so I left the pieces on and filled it in with MX2. I also applied MX2 to the PCB opposite the 2 hashing chips so the load plate would maybe pull some heat off the back of the PCB.

end result: 33 C temps, 3.1 v. same hash rate though.

PuertoLibre

legendary

Activity: 1890

Merit: 1003

Quote from: Cluster2k on June 01, 2013, 06:39:44 AM

Quote from: Littleshop on May 31, 2013, 09:54:00 PM

Quote from: tiberiandusk on May 31, 2013, 09:46:39 PM

Skeptical post is skeptical.

A bunch of people have received Jalapenos now.

35 on this list: http://bfl.ptz.ro/

First two days of Jalapeno orders filled. Almost a year to go.

How long did it take to fill out 2 days of Jalepenos?

Should I start counting from April 1st or May 1st?

60 days to fulfill 2 days worth of partial orders....yikes.

Cluster2k

legendary

Activity: 1692

Merit: 1018

Quote from: Littleshop on May 31, 2013, 09:54:00 PM

Quote from: tiberiandusk on May 31, 2013, 09:46:39 PM

Skeptical post is skeptical.

A bunch of people have received Jalapenos now.

35 on this list: http://bfl.ptz.ro/

First two days of Jalapeno orders filled. Almost a year to go.

erk

hero member

Activity: 826

Merit: 500

Quote from: vapourminer on June 01, 2013, 06:21:48 AM

Quote from: erk on May 31, 2013, 09:44:23 PM

I noticed there are 5 HW errors in that photo. Might want to look into that.

looked at percentage wise its not significant.

my jally in 2 days has had 4 hw errors.

0.000060% if Im doing the math anywhere near right.

Yeah that's insignificant. I wouldn't want to see more than 1 per hour on a device like an ASIC or I would be asking the software dev for advice.

vapourminer

legendary

Activity: 4354

Merit: 3614

what is this "brake pedal" you speak of?

Quote from: erk on May 31, 2013, 09:44:23 PM

I noticed there are 5 HW errors in that photo. Might want to look into that.

looked at percentage wise its not significant.

my jally in 2 days has had 4 hw errors.

0.000060% if Im doing the math anywhere near right.

Enigma81

full member

Activity: 180

Merit: 100

Quote from: k9quaint on May 31, 2013, 09:03:53 PM

Unfortunately no. You want to increase the air that moves over the entire surface of the heat sink. If you suck, the air will take the shortest path possible through the heat sink blades leaving some surface area with sub-optimal surface flow. If you blow air, it forces air into every nook and cranny of the heat sink increasing airflow over the entire surface. Proper heat sink blade design will prevent back-pressure and eddies.

{Rolls Eyes}

vapourminer

legendary

Activity: 4354

Merit: 3614

what is this "brake pedal" you speak of?

interesting, Ill have to try that.

my jally runs 5.56 ghs (2 day ave) @ 38 C and 3.2 v with a 140 mm fan blowing at its intake.

without the fan it was around 44 C and 3.35 v. cant remember the exact hash rate though.

seems the warmer it gets the more volts it gets.

really wish bfl would pay attention to cooling over looks. its so noisy no one would put it on their desk anyway, my single and jally are in the basement.

PuertoLibre

legendary

Activity: 1890

Merit: 1003

Quote from: grue on May 31, 2013, 06:38:37 PM

Quote from: JayCoin on May 31, 2013, 06:31:44 PM

3. Flip fan around so that it is blowing down

Wait, so the fan was originally pulling air through the heatsink? BFL engineering excellence right there. Cool

I also found that strange.

By the way, did he pay for 7 Gh/s?

If not, then people may very well get more than 5 for free....why pay more for the upgrade?

julz

legendary

Activity: 1092

Merit: 1001

Quote from: RoboCoder on May 31, 2013, 07:13:38 PM

Quote from: JayCoin on May 31, 2013, 07:09:50 PM

Purchased by rjk who sold his preorder to sadpandatech who then sold to me.

SO this was real product that was shipped not a sale given priority for a PR reason?? IOW - a trickle of jalepenos is actually leaving bfl still - which of course is great news..

Yeah - this week I received 2 units here in Australia - and I was suprised to find a nice pair of Alpaca socks included!
I ordered on the 2nd day.

TheSwede75

full member

Activity: 224

Merit: 100

Quote from: JayCoin on May 31, 2013, 06:31:44 PM

The Jalapeno case doesn't allow for a lot of good air flow.

When running out of the box I was getting 5.8 - 5.9 when it first started mining and then dropped to 5.6-5.7 Gh/s after it warmed up. Soto increase air flow I did the following:

1. Take apart case
2. Flip top over and put on bottom
3. Flip fan around so that it is blowing down
4. Run screws through fan and plastic spacers into top which is now on bottom
5. Runs cooler and faster now

Getting 5.9 - 6.0 Gh/s now
Running on Cgminer 3.1.1

Thanks to Sadpandatech for selling me the thing and for the great suggestions.

First off, GOOD JOB!
Second. I a convinced that with firmware updates and proper cooling you can push these past 7 GH/s. I am totally drunk now but I hope to elaborate tomorrow, and if nothing else when I receive my Jala. I wish you the best on your DYI hacks!

Also: If you would want to try it out, I have a few high quality CPU fans (thermaltake) and water cooling components I would be happy to send you if you want to experiment more. I wouldn't worry about charging you for them, just for you to cover shipping. IF you are in the US, PM me!

eroxors

legendary

Activity: 924

Merit: 1000

Think. Positive. Thoughts.

Sweet! Congrats!

JayCoin

sr. member

Activity: 409

Merit: 251

Crypt'n Since 2011

Quote from: erk on May 31, 2013, 09:44:23 PM

Grats on actually receiving one!

What's the other BFL units in the picture, FPGA?

Yeah, three fpga singles.

af_newbie

legendary

Activity: 2702

Merit: 1468

Quote from: JayCoin on May 31, 2013, 06:31:44 PM

The Jalapeno case doesn't allow for a lot of good air flow.

When running out of the box I was getting 5.8 - 5.9 when it first started mining and then dropped to 5.6-5.7 Gh/s after it warmed up. Soto increase air flow I did the following:

1. Take apart case
2. Flip top over and put on bottom
3. Flip fan around so that it is blowing down
4. Run screws through fan and plastic spacers into top which is now on bottom
5. Runs cooler and faster now

Getting 5.9 - 6.0 Gh/s now
Running on Cgminer 3.1.1

How much power does it draw?

Littleshop

legendary

Activity: 1386

Merit: 1004

Quote from: tiberiandusk on May 31, 2013, 09:46:39 PM

Skeptical post is skeptical.

A bunch of people have received Jalapenos now.

35 on this list: http://bfl.ptz.ro/

Topic: Got my JALAPENO today mining at 5.9 Gh/s with some tweaks - page 2. (Read 10454 times)