Topic: ANTMINER S5: 1155GH(+OverClock Potential), In Stock $0.319/GH & 0.51W/GH - page 112. (Read 451266 times)

Well I've gone and done it, I've ignored the advice that 70 CFM x2 isn't enough and picked up a couple of 4-wire PWM fans to replace the salvaged 2-wire PSU fans I'm running on now. They were a lot crappier (but quieter) than the free fans I couldn't believe it, I underestimated the CFM of the PSU fans. QQ

Two 150+ CFM/3000 RPM fans are definitely the bare minimum to go over 1TH/s mark.

The recycled PSU fans (2000RPM?) are currently running cool and quiet at 256.25M @ 830GH/s - 53/49 deg.

1 S5 to Indonesia via UPS is $340+$37.82
2 S5 to Indonesia via UPS is $680+$62.44

does anyone know how to turn AHF-2DC-2100W psu silent?

You can see it during checkout.

Yep I have been there from the early days. Used them both for forever. I stopped being a seller in eBay though. Got tired of the bullshit from eBay. I value my perfect rating hence I why I stopped selling! In all of my years I have only been ripped off once.

I remember when pay pal and Ebay first started i had a account on both of them lost that info for those accounts a long time ago  and just reopened two new accounts on Ebay and pay pal a year or two ago because then i had no use for either then now i use them more then any account, i have ever had ..


i love it on ebay when I'm told your account is not that old etc little do they know i was one of the very first ever to join either, when it went live way back,when the internet was dial up.

And when the push stock S3 fan ramps up to 3600 rpm .... (first time I've noticed it at night!) temps fall to 40, 43

its a bug in 4.8.0

I believe I have the latest FW update (Wed Jan 7 14:05:02 CST 2015) in all my S5s and they run 4.8.0 cgminer. I don't know how to get it to run 4.9 but 4.8 has extranonce support.

If WestHash is paying below my p-value when I cold boot it runs pool 2 fine. Then later if WestHash pays higher than p it switches. But, when the payout drops below p it stops mining and does not failover to pool 2. The only way I can get it to hash again is to manually edit pool 2 to be pool 1. My SP20s failover whenever pool1 is dead and swicth back to pool 1 when it goes live. Hopefully bitmain will fix the bug soon.

we all want some coupons  bitmain has not cracked and given many out.

Bitmain, how about some coupons so I can buy some more S5 units now that you have them back in stock?  Maybe just 4?

No I have not and it is running on the default voltage setting, but now that you mention it (and I am sure I have adequate power and cooling), I'll look into changing / setting different voltages.

great..
i will try it on my s5.
did you mod the bitmain-voltage in cgminer.conf?

I saw that. Interesting that price is staying firm @ $340. Still looking forward to an S2->S6 upgrade kit if it ever becomes available. Alternately, looking for at least another couple S5's to tinker with, but the current price @ $340 USD is not a rational decision for me.

TBH, the last few times I've felt like pulling the trigger on buying S5's, I ended up purchasing the equivalent USD as BTC on Coinbase instead.

Still have my jimmies all rustled from their B5 $320 initial offering shenanigans ...

I use 2 550W Dell server PSU's, one for each blade.

wow awesome freq with very low temps
ho much power to do it?

Fan mod
1. Thermalright 130CFM pull - fan is PWM but run with blue wire hack, aka full pelt)
2. Stock S3 fan running on PWM - push

This is a strange setup, during the day when it is a bit warmer, the push fan (stock S3) runs at higher RPM (3600 max I've seen) and I get temps of 44 and 46.
Freq 412.5

Noctua NF-F12 IndustrialPPC 3000RPM PWM 120mm High Performance Fan  x 2 ( push-pool )

Conceived for industrial heavy duty applications that require enhanced cooling performance and advanced ingress protection, the NF-F12 industrialPPC (Protected Performance Cooling) is a ruggedised high-speed version of the award-winning retail model. Thanks to the outstanding aerodynamic efficiency of the NF-F12 design and the use of a novel three-phase motor, the industrialPPC version provides superior airflow and pressure capacity while keeping noise levels and power consumption moderate as against comparable high-speed fans. While its fibre-glass reinforced polyamide construction and certified water and dust protection make the NF-F12 industrialPPC suitable for operation in challenging environments, the renowned SSO2 bearing technology guarantees an MTBF of over 150,000hrs. Topped off with Noctua's trusted reliability and six year manufacturer's warranty, the NF-F12 industrialPPC is an ideal choice for highly demanding applications that require superior flow rates and ultimate dependability

Features:
- Based on the award-winning NF-F12 design
- 3000rpm PWM industrialPPC version
- Three-phase motor design
- Fibre-glass reinforced polyamide construction
- Certified IP52 water and dust protection
- Integrated Anti-Vibration Pads
- Six year warranty

Specification:
- Size: 120x120x25 mm
- Connector: 4-pin PWM
- Bearing: SSO2
- Blade Geometry: Heptaperf
- Frame Technology: FocusedFlow
- Rotational Speed (± 10%): 3000 RPM
- Airflow: 109.8 CFM
- Acoustical Noise: 43.5 dB(A)
- Static Pressure: 7.63 mm H2O
- Max. Input Power: 3.6 W
- Max. Input Current   : 0.3 A

JUST PERFECT!

Mine seems to work fine and fails over from nicehash.com when it drops below the p= value. Which cgminer version are you using? Im running 4.9.0


" [2015-04-04 19:36:15] pool 0 JSON stratum auth failed: [
   24,
   "High price. No order to work on.",
   null
]"