Search found 41 matches

by multiplexer
Sun Dec 14, 2014 1:24 am
Forum: Fans and Control
Topic: Hardware.info 120mm roundup
Replies: 7
Views: 7239

Re: Hardware.info 120mm roundup

Unfortunately this is a criticism I've always had and is still hauntingly relevant to this day - Hardware.info always favours completely excessive quantity over any quality. Moreover, they rarely check their individual results. It literally seems like they have a conveyor belt and an intern set up t...
by multiplexer
Sun Dec 16, 2012 3:33 am
Forum: SPCR Article Discussion
Topic: Power Lost - A Better Way to Compare PSU Efficiency
Replies: 15
Views: 15118

Re: Power Lost - A Better Way to Compare PSU Efficiency

I approve :P this is roughly how power supply design works as well; the actual efficiency number is not much more than an afterthought because component dimensioning and balancing performance has to be done with physical quantities: voltage, current, power, energy. Within the world of topology desig...
by multiplexer
Wed Oct 24, 2012 12:47 pm
Forum: SPCR Article Discussion
Topic: Super Flower Golden Green 350W PSU
Replies: 32
Views: 24216

Re: Super Flower Golden Green 350W PSU

@MikeC: Well, as I said I have a bit of a (high-temp) skewed view on this because as somebody who actually does some power supply design (not actual ATX PSUs, very different stuff, mostly dc/dc converters) I like to design for end of life scenarios, where stuff is covered in dust. So that naturally ...
by multiplexer
Tue Oct 23, 2012 1:55 am
Forum: SPCR Article Discussion
Topic: Super Flower Golden Green 350W PSU
Replies: 32
Views: 24216

Re: Super Flower Golden Green 350W PSU

I've measured it on a couple of occasions. I tend to make silent or near-silent systems (as in: if at all possible no fans). An ivy bridge system in a Fractal Define 3 at idle gave me almost no temperature rise (<10 degrees), at full load about 35 degrees. Ambient temp was probably between 18 and 21...
by multiplexer
Tue Oct 23, 2012 1:30 am
Forum: SPCR Article Discussion
Topic: Super Flower Golden Green 350W PSU
Replies: 32
Views: 24216

Re: Super Flower Golden Green 350W PSU

Just a quick note on one of your quotes in the article where it really shows that you haven't paid enough attention to construction which really messes up your conclusion: No point going with higher temperature caps; with the high efficiency and the modest power rating, it just won't get that hot. N...
by multiplexer
Sun Oct 21, 2012 7:50 am
Forum: Deals, Vendors and Classifieds
Topic: mSATA to SATA/USB converter
Replies: 6
Views: 10486

Re: mSATA to SATA/USB converter

LOL... well, that was an obvious copy-paste...

I corrected the post, it was meant to say half-size and full-size mSATA slots.
by multiplexer
Mon Oct 15, 2012 12:45 pm
Forum: System Advice / Troubleshooting
Topic: 100% Fanless midrange system - is this possible?
Replies: 41
Views: 26525

Re: 100% Fanless midrange system - is this possible?

Hm, well, I can tell you one thing: I once built a 45W (max dissipation) completely fanless mini-ITX system in the smallest possible box, a Mini-Box M350. I'm sorry, my write-up is in Dutch, but here it is: http://ssj3gohan.tweakblogs.net/blog/5465/de-grenzen-van-mitx-opzoeken-deel-5.html . Everythi...
by multiplexer
Fri Sep 28, 2012 6:41 am
Forum: Deals, Vendors and Classifieds
Topic: mSATA to SATA/USB converter
Replies: 6
Views: 10486

mSATA to SATA/USB converter

Recently, somebody on the Dutch forum I frequent said that it was pretty hard to source mSATA to SATA and/or USB boards. As you might know mSATA ports are increasingly being used in laptops and small form factor PC motherboards for SSDs. However, such an mSATA port does cost you a normal SATA port o...
by multiplexer
Tue Sep 04, 2012 11:22 am
Forum: General Gallery
Topic: [WiP] Fluffy2, 5.9W quadcore Intel all-in-one PC
Replies: 4
Views: 5285

[WiP] Fluffy2, 5.9W quadcore Intel all-in-one PC

I am currently working on Fluffy2 (blog link) , a pretty big project that is going to be a passively-cooled all-in-one PC based off a mini-ITX ivy bridge system and an IPS display. Specs: - Intel DQ77KB (heavily modded) - Core i5-3570K (stock) - 2x8GB SODIMM @ 1.55V - 64GB MyDigitalSSD mSATA - Intel...
by multiplexer
Fri Nov 25, 2011 4:06 pm
Forum: Silent Storage
Topic: Lowest power consumption SSD
Replies: 11
Views: 7880

Re: Lowest power consumption SSD

When it comes to SSDs, reporting numbers which are completely wrong or right only in unrealistic circumstances is quite common. Do you know any website the staff of which welcomes any corrections and is willing to work to confirm and document them? Sure, most of them around kind of want to correct ...
by multiplexer
Mon Nov 21, 2011 12:04 am
Forum: Silent Storage
Topic: Lowest power consumption SSD
Replies: 11
Views: 7880

Re: Lowest power consumption SSD

Most SSD power consumption reviews are completely wrong. Here's the deal: Some SSDs support DIPM, Device Initiated Power Management. This is not an automatic hardware feature, but something that has to be activated by a driver. Most SSD reviewers run automated test benches in either a scripted Linux...
by multiplexer
Sun Sep 04, 2011 7:21 am
Forum: Power Supplies
Topic: Grounding PicoPSU AC jack? Audio problems?
Replies: 2
Views: 1803

Re: Grounding PicoPSU AC jack? Audio problems?

The problems you are describing can be an earthing fault, but it's more likely that it is just a bad audio codec or some other problem. By connecting your audio jack to another device, you are effectively grounding the signal path between the two. Also, if you really think it is a grounding problem,...
by multiplexer
Wed Aug 31, 2011 12:00 am
Forum: Green Computing
Topic: Energy efficient Eyefinity setup
Replies: 10
Views: 11222

Re: Energy efficient Eyefinity setup

I'll publish an article about it and some more theory related to monitor power consumption somewhere in September. I'm really busy right now and the 'data' mostly consists of Prad.de and other websites' measurement data. There are some significant differences between different websites and I strive ...
by multiplexer
Mon Aug 29, 2011 1:04 pm
Forum: Green Computing
Topic: Energy efficient Eyefinity setup
Replies: 10
Views: 11222

Re: Energy efficient Eyefinity setup

That power consumption that people list above is the maximum power consumption for these monitors, usually at too high brightness levels. I have compiled a long list with actual measured power consumption at a reasonable light level (120-140cd/m2). If you stick to the newest generation LED-backlit T...
by multiplexer
Tue Aug 23, 2011 10:19 am
Forum: Power Supplies
Topic: High power passive 12V PSU
Replies: 1
Views: 712

Re: High power passive 12V PSU

No, not really. The problem is in switching the power. You'd need to separately switch the 12V lines not passing through the picopsu as well. I did that in one of my builds using a P-mosfet with the gate stuck to the same switching signal going to another 12V switcher on the picopsu. If you do not u...
by multiplexer
Sat Aug 20, 2011 11:23 pm
Forum: Silent Storage
Topic: Efficient power consumption optical disk drives?
Replies: 4
Views: 3654

Re: Efficient power consumption optical disk drives?

Basically, you're on your own. This is typical for almost all pre-2008 hardware. There was simply no interest at all in power consumption. Historically, because of systems integrators needing thermal data, CPU power dissipation has always been known pretty accurately but all the other components wer...
by multiplexer
Fri Aug 19, 2011 1:03 am
Forum: Power Supplies
Topic: Efficient ~250W PSU available already?
Replies: 6
Views: 2953

Re: Efficient ~250W PSU available already?

The planet3dnow version is significantly different in multiple respects:

http://www.hardwaresecrets.com/article/ ... eview/1362
by multiplexer
Sat Aug 06, 2011 10:45 pm
Forum: Power Supplies
Topic: Do voltmeters give accurate information?
Replies: 8
Views: 1337

Re: Do voltmeters give accurate information?

This one is actually fairly easy to answer*. Power is measured by multiplying volts and amps. As you might know, current and voltage on the mains changes constantly; it is a (by approximation) sinusoidal waveform with a frequency of 50 or 60 Hz. Apart from variability in how much power your device a...
by multiplexer
Tue Jul 26, 2011 11:13 pm
Forum: SPCR Article Discussion
Topic: Gigabyte A75M-UD2H Mainstream FM1 Motherboard
Replies: 14
Views: 7100

Re: Gigabyte A75M-UD2H Mainstream FM1 Motherboard

Nope. No ECC support in Llano.
by multiplexer
Sat Jul 23, 2011 11:57 am
Forum: Silent Storage
Topic: multiple hard drives, not for server but for RAID speed
Replies: 28
Views: 5477

Re: multiple hard drives, not for server but for RAID speed

Let's look at it from another perspective with respect to your sequential write comment. Even the best SSDs are still in the same order of magnitude where HDDs live. Certainly if we're talking cost/performance. As a counterexample take random I/O: even the best HDDs don't manage better than 300kB/s ...
by multiplexer
Sat Jul 23, 2011 1:17 am
Forum: Silent Storage
Topic: multiple hard drives, not for server but for RAID speed
Replies: 28
Views: 5477

Re: multiple hard drives, not for server but for RAID speed

Now you are just trying to prove each other wrong instead of making a constructive argument. SSDs are vastly superior to HDDs in every practical scenario. There should be no question about this. There is only one scenario where HDDs perform better, and that is sequential write. That's it. The amount...
by multiplexer
Sat Jul 23, 2011 1:04 am
Forum: General Gallery
Topic: smaller wooden box
Replies: 9
Views: 5438

Re: smaller wooden box

Something that is very, very important to observe with wooden cases is that you have either electrically conductive paint on the inside or metal panels to act as an EMI shield. Computers put out tons and tons of electromagnetic interference (EMI) and are actually required by law and/or import rules ...
by multiplexer
Thu Jul 21, 2011 12:00 am
Forum: Green Computing
Topic: Converting old core2duo system to file server, saving power?
Replies: 10
Views: 12684

Re: Converting old core2duo system to file server, saving po

Have you considered simply selling these parts and buying (possibly second hand) more efficient parts? e.g. buying an MSI or Intel H55 motherboard, core i3-530 or -540, single 3TB disk and an 80 plus low-wattage power supply. That should work exceptionally well in cutting down on power, and will eve...
by multiplexer
Tue Jul 19, 2011 3:52 am
Forum: Silent Storage
Topic: Which SSD to buy?
Replies: 36
Views: 7383

Re: Which SSD to buy?

Honestly, in day-to-day use the differences between any two SSDs are absolutely minimal. The difference with mechanical drives is so vast that it really doesn't matter. As I see it, the main difference between SSDs right now is reliability (i.e. failure rates, not all that write cycle bull).
by multiplexer
Mon Jul 18, 2011 2:16 pm
Forum: Silent Storage
Topic: Are there any 2-platter 2TB Hd?
Replies: 6
Views: 3107

Re: Are there any 2-platter 2TB Hd?

As pointed out in various other parts of the forum decibels alone don't tell you much. Eh, that's me saying I really don't know ;) Just removing AAM isn't necessarily a dealbreaker. Because of the much smaller R/W arm mass having to be moved around a 2.5" drive is by itself pretty quiet during seeks...
by multiplexer
Mon Jul 18, 2011 1:59 pm
Forum: Silent Storage
Topic: Are there any 2-platter 2TB Hd?
Replies: 6
Views: 3107

Re: Are there any 2-platter 2TB Hd?

But this specific overhaul of Seagate drives hasn't been properly reviewed yet, so objectively there's really nothing to say. Seagate isn't necessarily, by the color of their skin, bound to making noisy hard drives. A prime example are their hybrid 2.5" drives that are much quieter yet faster than a...
by multiplexer
Mon Jul 18, 2011 12:27 pm
Forum: Silent Storage
Topic: Are there any 2-platter 2TB Hd?
Replies: 6
Views: 3107

Re: Are there any 2-platter 2TB Hd?

What specifically do you dislike about the seagate?
by multiplexer
Mon Jul 18, 2011 12:21 pm
Forum: CPUs and Motherboards
Topic: Intel DH61AG Media Series Mini-ITX mobo
Replies: 41
Views: 31274

Re: Intel DH61AG Media Series Mini-ITX mobo

Throttling (at least initially) uses P-states. You won't be able to see the frequency drop (because it doesn't) but the processor just does nothing some percentage of each million cycles or so. The only way to assess whether the processor is actually throttling is by observing temperatures and/or pe...
by multiplexer
Mon Jul 18, 2011 12:15 pm
Forum: Newcomers Briefing Room
Topic: Is fanless an option? NC9C-550-LF
Replies: 25
Views: 7750

Re: Is fanless an option? NC9C-550-LF

It's an ASUS V70 without fan. Actually a pretty bad cooler, but it fits very well with the case and motherboard in my system. As with nearly all my computer stuff it's what I found second hand for a good price (I don't like buying new).
by multiplexer
Sun Jul 17, 2011 1:27 am
Forum: Silent Storage
Topic: SSD squeaking / buzzing?
Replies: 5
Views: 5156

Re: SSD squeaking / buzzing?

Well, it's not all to strange that an SSD can squeak. SSDs are fed from 5V while the microelectronics usually run at 1.8-3.3V and the NAND flash runs at 12-24V. There's bound to be at least two voltage regulators on the board, and I know as a matter of fact that Intel always uses switching supplies ...