Posts by Vipin Palazhi


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1) Message boards : Number crunching : Help with Case Fans and GPU Fans (Message 1707262)
Posted 18 hours ago by Profile Vipin Palazhi
Thanks for the links Troy. I had been pondering over the idea of installing the AC fans and got my hands on two spare fans that were purchased for chiller DDC panels, however, lack of time and in view of most of the comments here, I decided against it. Instead I found Sunon PMD1212PTB1-A.(2).F.GN on ebay for around $12 and ordered 4 of them. Test result was satisfactory and its a bit louder than I want. The next step was to purchase the NZXT Sentry Mesh to regulate the speed. At around 60% setting the fans are inaudible, and I can ramp them up as needed. Bgear 120mm fan filters were added as a dust control measure.

For my GPU fans, I found replacement parts on aliexpress and ordered them for both the GTX 660 and GTX 650ti. The one for 650ti arrived last week and it was a quick replacement. The other should be in my hands next week.
2) Message boards : Number crunching : Computer(s) that run seti only (Message 1706660)
Posted 2 days ago by Profile Vipin Palazhi
Apologies for kinda hijacking this thread, but are there any new optimized apps in the pipeline? An installer with newer AP7 codes would be helpful too.
3) Message boards : Number crunching : Current motherboards that can support 6+ GPUs? (Message 1698037)
Posted 29 days ago by Profile Vipin Palazhi
For low end cards, 1x, 4x or 8x might be ok

I've used a 1x before with a gtx 750, but when I tried with higher end card it wouldn't work.

I tired a 16x as well with high end card, but it too wouldn't work as well.

Don't know if it has something to do with requirements of the higher end cards.

You might get a different result. I ended up opting for a new MoBo

I just went for the higher end boards, I've got 4 so far, 3 have cases, the 4th doesn't yet, but it will, an X9 for 4 and 5, 1 each of course.


Again, thanks for the tips.

Only my main rig is in a case, the rest are all open bare bone system, subjected to direct flow from the AC outlet. Helps keep them cool in this desert environment.
4) Message boards : Number crunching : Current motherboards that can support 6+ GPUs? (Message 1697806)
Posted 2 Jul 2015 by Profile Vipin Palazhi
Thanks for the info. I was worried that these flimsy looking ones might cause trouble with the mobo/GPU.

I won't go with any PCIe 1x riser with high end cards


I have read on many sites that 1x, 4x or 8x work as good as 16x slots when it comes to computing, so I am a bit confused here.
5) Message boards : Number crunching : Current motherboards that can support 6+ GPUs? (Message 1697767)
Posted 2 Jul 2015 by Profile Vipin Palazhi
What sort of GPU will you be using with the riser? Some cards will not work with certain risers, other will. So knowing what the GPU cards is first helps


I wasn't aware of that. I am planning to get a couple of R9 290/X. I found 3M 8KC3-0726-0500 cables but they are extremely pricey compared to what Amazon has.
6) Message boards : Number crunching : Current motherboards that can support 6+ GPUs? (Message 1697391)
Posted 1 Jul 2015 by Profile Vipin Palazhi
Can anyone recommend a good quality pci-e riser card. I have checked on Amazon and most of them have negative comments. So not sure which ones to buy without the fear of wrecking the mobo and GPU.
7) Message boards : Number crunching : Help with Case Fans and GPU Fans (Message 1693550)
Posted 19 Jun 2015 by Profile Vipin Palazhi
Vipin,

Did you check eBay?

http://www.ebay.com/sch/i.html?_from=R40&_trksid=p2053587.m570.l1313.TR0.TRC0.H0.Xfans+for+Asus+GTX+660.TRS0&_nkw=fans+for+Asus+GTX+660&_sacat=0


Thats neat, thanks a lot. I never used ebay before but must give it a try now.
8) Message boards : Number crunching : Help with Case Fans and GPU Fans (Message 1693428)
Posted 19 Jun 2015 by Profile Vipin Palazhi
Thanks for all the tips. I tried peeling off the sticker and oiling the stuck fan on my GPU and it now rotates intermittently. I guess a few more tries will free it up.

I have never heard of washing the DC fans, but maybe I will give it a try if the lubricating method doesn't work.

However, with GTX660, I will still need a new set of fans as one of the blades is completely broken now and the imbalance creates a too much vibration at high speeds. I could not find the same type replacement on the net, and the entire setup has to be two slot wide.

My case has a total of 6 fans and the combined whine is a bit too much especially at night. All of them came with the case and their data specs put them on an average of 51dB. I work with case fans used on electrical DBs, which while pushing more air are much quieter at around 39dB. Hence the thought of replacing the 12V DC with these ones. I will not be changing the CPU radiator fans rated at 110cfm. So the new fans need to be in similar range so as not to create pressure difference inside the case.
9) Message boards : Number crunching : Help with Case Fans and GPU Fans (Message 1692583)
Posted 17 Jun 2015 by Profile Vipin Palazhi
Quite a few 120x120x25 230vAC fans with <100m3/h
First one I came across - Sunon SP101AT-1122HSL.GN flow of ~136m3/h

As for you GPU fans - what diameter and depth can you get away with?


Thanks, however, 1122HSL.GN is rated at 78cfm. As for the GPU fans, I haven't measured the dimensions. The current thickness is two slot wide, and hence the same is required, else it will touch the PSU. Diameter wise, it should lie within the edges of the GPU itself.
10) Message boards : Number crunching : Help with Case Fans and GPU Fans (Message 1692557)
Posted 17 Jun 2015 by Profile Vipin Palazhi
Would anyone have information about 120x120x25 mm case fans running on 240V AC, with atleast 100cfm airflow? The best I found at 25mm thickness was rated at 80cfm. I found many at 38mm thickness, which due to space restriction in my case, cannot be used. I plan to replace my 12V DC fans which are only 35cfm. DC fans at higher cfm are too loud.

Also, due to my own dumbness, I managed to break the fan fins on my Asus GTX 660, and one of the fans on my Gigabyte GTX 650Ti is jammed. Any suggestions for replacement fans which will stay within two slot widths?
11) Message boards : Number crunching : Panic Mode On (93) Server Problems? (Message 1621647)
Posted 1 Jan 2015 by Profile Vipin Palazhi
A very happy new year to all from this part of the world.
12) Message boards : Number crunching : Panic Mode On (92) Server Problems? (Message 1609408)
Posted 5 Dec 2014 by Profile Vipin Palazhi
It will be interesting to see how low my RAC will go before we start getting new work again?
13) Message boards : Number crunching : Panic Mode On (92) Server Problems? (Message 1606410)
Posted 28 Nov 2014 by Profile Vipin Palazhi
I am a hardcore seti cruncher, but I had joined Einstein to coverup outages. My RAC in Eintein used to be around 1000-2000, but now it has shot up to 90000. Hope Seti gets back online soon.
14) Message boards : Number crunching : Panic Mode On (91) Server Problems? (Message 1597005)
Posted 5 Nov 2014 by Profile Vipin Palazhi
Since the upload servers are out, my rigs are all out of work. Falling back to my spare project for now. Hope all is back to normal soon.
15) Message boards : Number crunching : Panic Mode On (91) Server Problems? (Message 1589979)
Posted 22 Oct 2014 by Profile Vipin Palazhi
After lots of retries, the rigs have not reported the work, however, as others are experiencing, there are no tasks available. Restarted my backup project for now.
16) Message boards : Number crunching : Panic Mode On (91) Server Problems? (Message 1589907)
Posted 22 Oct 2014 by Profile Vipin Palazhi
My rigs have not been able to report the competed WUs since almost 12 hours now.

10/22/2014 7:12:02 AM | SETI@home | update requested by user
10/22/2014 7:12:06 AM | SETI@home | Sending scheduler request: Requested by user.
10/22/2014 7:12:06 AM | SETI@home | Reporting 202 completed tasks
10/22/2014 7:12:06 AM | SETI@home | Requesting new tasks for CPU and NVIDIA
10/22/2014 7:12:29 AM | SETI@home | Scheduler request failed: Couldn't connect to server
10/22/2014 7:12:33 AM | | Project communication failed: attempting access to reference site
10/22/2014 7:12:36 AM | | Internet access OK - project servers may be temporarily down.


Something wrong I guess.
17) Message boards : Number crunching : Correct delete of HDD before new OS install? (Message 1505653)
Posted 18 Apr 2014 by Profile Vipin Palazhi
Unfortunately with all the power available via GPUs, cracking longer, full sentence passwords are a fairly trivial affair: http://arstechnica.com/security/2013/08/thereisnofatebutwhatwemake-turbo-charged-cracking-comes-to-long-passwords/, http://arstechnica.com/security/2013/03/how-i-became-a-password-cracker/, and http://arstechnica.com/security/2013/05/how-crackers-make-minced-meat-out-of-your-passwords/ show details on how just about anyone can do it these days.

Increasingly password vaulting software such as KeePass that will randomly generate difficult to crack passwords will also save them for you. The downside is that if you're using complete hard drive encryption and require a password at boot time (like my company does), having a software-based password vaulting software won't help much.


All I can suggest is Password Generator and Password Meter.
18) Message boards : Number crunching : Android crunching going mainstream. (Message 1482173)
Posted 27 Feb 2014 by Profile Vipin Palazhi
I have been running the NativeBOINC app on my not so powerful android phone for a few months now. The app seems to be doing a good job in crunching, so far.
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19) Message boards : Number crunching : Panic Mode On (86) Server Problems? (Message 1473040)
Posted 5 Feb 2014 by Profile Vipin Palazhi
Although not directly related to crunching, I am getting the "Untrusted Connection" message while trying to open seti@home account using Firefox. Says the connection is unsecure and the certificate isn't valid. All seemed ok till yesterday, however, there seems no issue with IE. Anyone else having this issue or is it just me?

Edit: Please disregard, it was some issues with the proxy settings.
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20) Message boards : Number crunching : step by step guide to get working linux slackware64 14.1 with boinc running ? (Message 1473011)
Posted 5 Feb 2014 by Profile Vipin Palazhi
I am very much interested in trying linux, however, can this be done with Linuxmint?


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