Recent content by Syzygies

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Intel Nuc i5 vs custom SFF build

I went through a similar decision process. My needs are atypical: I use a Mac mini for general use, and I run various parallel math computations, coded in Haskell. I love building, and have various Mountain Mods cases around that would make good in-law apartments, now housing older overclocked...
- Syzygies
- Post #13
- Jan 13, 2015
- Forum: Computer Building
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Sunbeam Rheosmart 6 Fan Controller

What is the minimum fan voltage that you see, with PWM set to 1%? Sunbeam Rheosmart 6 Fan Controller Sunbeam does advertise that these controllers are designed for 3-pin fans. They don't say whether the control is analog or pulsed. I observed analog voltage control, with 1% PWM...
- Syzygies
- Post #21
- Aug 30, 2011
- Forum: Cases & Cooling
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Sunbeam Rheosmart 6 Fan Controller

If the PWM line can handle a load of "1" and each fan is a load of "0.2" then the system can handle five fans. If the PWM line can handle a load of "1" and each fan is a load of "0.1" then the system can handle ten fans. So if each fan is designed to be a light load, there's room for more...
- Syzygies
- Post #19
- Aug 29, 2011
- Forum: Cases & Cooling
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Sunbeam Rheosmart 6 Fan Controller

The PWM signal is a very weak on-off signal, telling the PWM fan when to turn on and off power to its fan motor. The actual motor power comes in on a different line, which is how e.g. Akasa cables can inject power. It takes some work to turn the switch on and off. Perhaps you understand a...
- Syzygies
- Post #17
- Aug 29, 2011
- Forum: Cases & Cooling
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Sunbeam Rheosmart 6 Fan Controller

PWM is turning the power on and off quickly, in a square wave, these days at an inaudibly high frequency. Play around with which fan you choose to return the rpm signal. The motherboard will tune the PWM pulses to make that fan behave as expected, and the other fans will scale accordingly. They...
- Syzygies
- Post #15
- Aug 29, 2011
- Forum: Cases & Cooling
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Sunbeam Rheosmart 6 Fan Controller

Yes, that's a great cable. Some people wire it themselves, but why bother! It injects power, and the PWM signal splits five ways just fine. Using five identical PWM fans, one will achieve roughly the same rpm in each fan, and PWM control has a much broader range than voltage control. So...
- Syzygies
- Post #13
- Aug 29, 2011
- Forum: Cases & Cooling
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Sunbeam Rheosmart 6 Fan Controller

Not sure why the bump, but I wince now even thinking about this category of accessories. Bottom Line: Do not buy anything in this category unless you know exactly how it is wired, and understand that it is wired as it should be wired. Do not be generous in making assumptions about products you...
- Syzygies
- Post #11
- Aug 29, 2011
- Forum: Cases & Cooling
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Core i3 2120K - unlocked dualcore sandy!?

Are you saying I shouldn't overclock, or I should instead use a 2500K or 2600K in all my builds? I have no idea which. Some of us like to do things with our hands, rather than sit in front of a TV. No one said it's rational, it just is what it is.
- Syzygies
- Post #25
- May 20, 2011
- Forum: CPUs and Overclocking
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Core i3 2120K - unlocked dualcore sandy!?

I have the opposite question: Sandy Bridge opens up overclocking to anyone who can figure out which way to screw in a light bulb. Why do we still see all these forum queries that include "I'm not planning to overclock..." Having a "policy" like this is effectively wearing a sign, "I've made up...
- Syzygies
- Post #4
- May 20, 2011
- Forum: CPUs and Overclocking
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Whats up with my Q6600?

Tomorrow is Rapture day for Q6600 chips. Get a 2600K?
- Syzygies
- Post #4
- May 20, 2011
- Forum: CPUs and Overclocking
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Average OC for 2500K?

Bingo. Back in Q6600 days I used to use Antec P182 cases. I build a wind tunnel (5" tube with push-pull fans) to feed outside air from the front of the case directly to my TRUE cpu cooler, and saw load core temps drop 5 C. I was astonished. Now I build with various MountainMods cases, with 8...
- Syzygies
- Post #22
- May 11, 2011
- Forum: CPUs and Overclocking
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i7-2600K idle & load temps? What is everyone getting?

Noctua NH-D14 cooler with two Cooler Master Blade Master PWM fans swapped in, scaled to run about 50% at full load. Nine Scythe S-Flex SFF21E case fans at 5 volts (12 volts makes at most 1 C difference). At 4.5 GHz I'm seeing 40 C or less above ambient, and the system is nearly silent.
- Syzygies
- Post #12
- May 7, 2011
- Forum: CPUs and Overclocking
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P8P67 Pro B3 - USB Issue

P8P67 PRO (REV 3.1) I have a Rev 3.0 working fine with 16 GB Ripjaws. Awaiting Rev 3.1 to reach suppliers here, for a second build.
- Syzygies
- Post #48
- May 7, 2011
- Forum: Motherboards
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ILLINOIS MICRO CENTER: Motherboard scams Again!

Bingo. My first build ever was an LGA 775. Before this, like electricians working live, I'd gotten into the habit of not wearing the stupid fabrics that build static, and working barefoot, but not wearing a static strap. At Fry's I picked up anti-static gloves, along with my "bad axe"...
- Syzygies
- Post #40
- May 3, 2011
- Forum: Motherboards
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A question to you all experts about stopping a CPU fan.

My ASUS P8P67 Pro motherboard has "Intel Adaptive Thermal Monitor, Enables the overheated CPU to throttle its clock speed to cool down", and "CPU Fan Speed Low Limit [600 RPM], This item appears only when you enable the CPU Q-Fan Control feature and allows you to disable or set the CPU fan...
- Syzygies
- Post #3
- May 3, 2011
- Forum: Cases & Cooling

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