Search found 30 matches

by jonjan
Wed Aug 17, 2011 5:48 pm
Forum: Deals, Vendors and Classifieds
Topic: Akasa Apache 120x25mm - used/tested for about 5 minutes
Replies: 6
Views: 2975

Re: Akasa Apache 120x25mm - used/tested for about 5 minutes

... make that $11, including Priority shipping.

getting it new costs $18.82.
by jonjan
Fri Aug 12, 2011 8:56 am
Forum: Deals, Vendors and Classifieds
Topic: Akasa Apache 120x25mm - used/tested for about 5 minutes
Replies: 6
Views: 2975

Re: Akasa Apache 120x25mm - used/tested for about 5 minutes

I don't use PWM (I use a laptop). The fans are for external cooling and air filtering. So, for my purposes, I need a fan that can be undervolted using a external fan controller. I did figure that the akasa clicked because of the external fan controller, and that it would not click when used as it's ...
by jonjan
Thu Aug 11, 2011 5:11 pm
Forum: Deals, Vendors and Classifieds
Topic: Akasa Apache 120x25mm - used/tested for about 5 minutes
Replies: 6
Views: 2975

Re: Akasa Apache 120x25mm - used/tested for about 5 minutes

no bites.. so reduced to $12 including the priority shipping.
by jonjan
Wed Aug 10, 2011 7:51 am
Forum: Deals, Vendors and Classifieds
Topic: Akasa Apache 120x25mm - used/tested for about 5 minutes
Replies: 6
Views: 2975

Re: Akasa Apache 120x25mm - used/tested for about 5 minutes

When plugged into an external AC->DC 2A adapter, at 12v, sitting on an open table, the Akasa was louder than the NF-P12. Not saying it was ' loud ', simply loud er than my current fan. (I was looking for quieter). To what degree? ... maybe if the akasa was about 3 feet away, and the noctua was next ...
by jonjan
Mon Aug 08, 2011 4:36 pm
Forum: Deals, Vendors and Classifieds
Topic: Akasa Apache 120x25mm - used/tested for about 5 minutes
Replies: 6
Views: 2975

Akasa Apache 120x25mm - used/tested for about 5 minutes

I bought a new akasa apche to test it's sound level. I tested it for about 5 minutes... not silent, louder than the Noctua NF-P12 (though more cfm and pressure too). Louder than my existing fan = my decision to sell the apache. Sidewinder is the only source in the US, and they sell it for exactly $1...
by jonjan
Sat Jul 23, 2011 2:46 am
Forum: Fans and Control
Topic: fan controller start-up voltage limits?
Replies: 3
Views: 729

Re: fan controller start-up voltage limits?

haha that's cool :lol: I'm looking for continuously variable also, to dial the exact rpm that is quiet enough, and get the most cfm. If 11.8v is as quiet as needed, I wouldn't want to need to go all the way down to 10v. this one is the cheapest so far that didn't specify startup voltage http://www.c...
by jonjan
Fri Jul 22, 2011 11:57 pm
Forum: Fans and Control
Topic: fan controller start-up voltage limits?
Replies: 3
Views: 729

fan controller start-up voltage limits?

I'm searching for a cheap basic manual voltage controller, for two 120mm 5.5volt startup 1.8watt fans. So far the Zalman Fanmate 2 and the Lamptron FC1 both are incompatible, due to having a start-up limit of 5v max. Every other controller I've looked at doesn't specify a spec for the startup voltag...
by jonjan
Wed Jul 20, 2011 3:22 am
Forum: Fans and Control
Topic: 120x38mm fans with high Pressure at Lowest dBA
Replies: 14
Views: 7022

Re: fans with above-average Pressure at Lowest dBA

They definitely looks very close. I kept reading that on SPCR pages too. Mostly saying that the Nexus has much quieter at high speeds, and only just quieter at lower speeds. Due to the Nexus having sleeve bearings I can't go horizontal or use it with heat... so I might be going with the Noctua P12. ...
by jonjan
Tue Jul 19, 2011 10:45 pm
Forum: Fans and Control
Topic: 120x38mm fans with high Pressure at Lowest dBA
Replies: 14
Views: 7022

Re: fans with above-average Pressure at Lowest dBA

I found a few SPCR measurements, and found the sound sample page for the Nexus... and that makes me realize more than yes, the only way to really know what a fan sounds like in person, is to hear it in person. If I'm able I might test a few fans, though I'd rather try to find a keeper and buy only t...
by jonjan
Mon Jul 18, 2011 11:30 pm
Forum: Fans and Control
Topic: 120x38mm fans with high Pressure at Lowest dBA
Replies: 14
Views: 7022

Re: fans with above-average Pressure at Lowest dBA

I checked again and can't find any static pressure numbers for the Gentle Typhoon. So far, I've checked the xbit lists for all the 120mm and 140mm fans. After comparing numbers I also noticed that they tend to give a CFM result of half what the manufacturer gives, at 12v. I don't think manufacturers...
by jonjan
Mon Jul 18, 2011 8:22 pm
Forum: Fans and Control
Topic: 120x38mm fans with high Pressure at Lowest dBA
Replies: 14
Views: 7022

Re: list: fans with Highest Pressure at Lowest dBA

My system cools acceptably with a single 50+ CFM fan. The CFM was no doubt measured in free air without any static pressure. That is usually how most cfm numbers are measured. One inch is a pretty thick filter. Do you really need it? Take a look at the modright filterright filters. In any event, tr...
by jonjan
Mon Jul 18, 2011 4:26 pm
Forum: Fans and Control
Topic: 120x38mm fans with high Pressure at Lowest dBA
Replies: 14
Views: 7022

Re: list: fans with Highest Pressure at Lowest dBA

The static pressure is to pull air through a 1" thick filter. My system cools acceptably with a single 50+ CFM fan. The fan size doesn't matter, I'll modify the hole. I just want the pressure, CFM, and quiet. I used to use a SilenX 120mmx38mm, and it had enough pressure. I also had some random 60CFM...
by jonjan
Mon Jul 18, 2011 6:33 am
Forum: Fans and Control
Topic: fan static pressure, back pressure, etc -measured & defined?
Replies: 0
Views: 581

fan static pressure, back pressure, etc -measured & defined?

The terms like static pressure, back pressure, mm H2O, Pa. Is there a good webpage to explain these... and how they relate to real world experience. I gather that higher numbers mean more, but what do they mean. ie, can a number be a benchmark, like being able to pull air through a x" thick filter? ...
by jonjan
Mon Jul 18, 2011 4:16 am
Forum: Fans and Control
Topic: 120x38mm fans with high Pressure at Lowest dBA
Replies: 14
Views: 7022

120x38mm fans with high Pressure at Lowest dBA

edited: this thread originally didn't specify 38mm thickness. I've received the Nexus 120mm D12SL-12, and the Noctua NF-P12... and both are 25mm thick. The thickness of a 38mm should provide more static pressure. So the thread is now.... what are the 120x38mm fans that have the highest pressure and ...
by jonjan
Thu Jul 27, 2006 1:01 pm
Forum: Silent Storage
Topic: presentation of zero dB RAM & Program storage (much fast
Replies: 0
Views: 1395

presentation of zero dB RAM & Program storage (much fast

Here's some info I collected and organized on totally-silent storage.... which is also much faster... FASTER DATA STORAGE I/O collection and main features of available PATA, SATA, PCI-E x1 RAM drive Cards, and application RAMDisk, RAM cache, and RAM drive volumes (mirrors).... RAM storage is totally...
by jonjan
Thu Jun 22, 2006 6:17 pm
Forum: CPUs and Motherboards
Topic: will plastic transfer a current from the mobo bottom metal?
Replies: 2
Views: 1147

will plastic transfer a current from the mobo bottom metal?

I am wondering... would thin pieces of plastic sheets be able to conduct current if it is touching the metal soldering/pins on the underside of the mobo? Any idears? I have this set-up and i'm creating an air-chute on the bottom of the mobo, so the drives will be cooled http://helpusall.com/tmp/temp...
by jonjan
Wed Jun 14, 2006 11:54 am
Forum: CPUs and Motherboards
Topic: thermal transfer of Arctic Silver Compound vs. AS Adhesive
Replies: 4
Views: 1856

thermal transfer of Arctic Silver Compound vs. AS Adhesive

The CNPS9500 have large air gaps between the heatpipes and where they contact with the heatblock. To improve heat transfer, I filled in the air spaces with Arctic Silver 5 I'm now wondering if AS Adehsive would transfer heat better than the non-adhesive compound. from AS's site, they say AS5 thermal...
by jonjan
Sat Jun 10, 2006 10:20 pm
Forum: Power Supplies
Topic: too high power vs too few SATA connectors?
Replies: 5
Views: 1592

is it true that a higher wattage PSU will heat up less than a lower wattage PSU, at a given wattage use? Such as a 500watt PSU giving 200 watts of energy will heat up less, than a 300 watt PSU. And thus would need less cooling, ie. less fan rpm? And that a higher wattage PSU will delivery cleaner po...
by jonjan
Sat Jun 10, 2006 10:15 pm
Forum: Power Supplies
Topic: Antec PSU emits noise. EDIT: just bought Seasonic s12 430w
Replies: 8
Views: 4593

hi, i had an antec Phantom 500watt that made a cycling buzzing. It would cycling on and off. Being silent and then grow in volume, and then get quieter... and then repeat. I think it was a defective unit and RMA'ed it Jon http://www.helpusall.com "you can never win and you can never lose, because th...
by jonjan
Sat Jun 10, 2006 9:40 pm
Forum: Power Supplies
Topic: Mod PSU with copper/alu heatsinks, quiter fan, hexmesh cover
Replies: 18
Views: 4619

Re: PICS of PSU Mod

thanks :D this is a tad off-topic, but on topic because i wouldn't be here otherwise... i day trade nasdaq 100 stocks... and the majority of the gains go towards funding efforts to help allow people to be more independent of corporations and jobs, and be more able to explore life more freely... and ...
by jonjan
Sat Jun 10, 2006 6:49 pm
Forum: Power Supplies
Topic: Mod PSU with copper/alu heatsinks, quiter fan, hexmesh cover
Replies: 18
Views: 4619

PICS of PSU Mod

It's not done yet, but thought I'd show some pics of the progress so far.. PSU - Fortron FX700-GLN Epsilon (700watts, RoHS and WEEE, 85% efficiency, active pfc) ..for in-closet silent top-end home-built PC used for the benefit of aid, education, 'enlightenment' efforts Goals of Mod - Mod the cooling...
by jonjan
Sat Jun 10, 2006 5:24 pm
Forum: Power Supplies
Topic: Mod PSU with copper/alu heatsinks, quiter fan, hexmesh cover
Replies: 18
Views: 4619

thanks... I was going to use the Phantom 500, but after a week it started making a cycling buzzing. Then I found I wanted an RoHS PSU (to have less exposure to toxics for me and my family), How often do members of your family chew on PSU circuit boards? Because otherwise the only way anyone will be...
by jonjan
Fri Jun 09, 2006 8:35 pm
Forum: Power Supplies
Topic: Mod PSU with copper/alu heatsinks, quiter fan, hexmesh cover
Replies: 18
Views: 4619

oh well. I am curious, but the easy technique is simply seeing if the cfm and db is acceptable to my needs. Back on the main topic.... I should have some photos soon of the PSU mod. I've already adhesived the copper BGA sinks, and some big-blue zalman northsink pieces. Tomorrow, I adhere the 3 big z...
by jonjan
Wed Jun 07, 2006 11:21 am
Forum: Power Supplies
Topic: Mod PSU with copper/alu heatsinks, quiter fan, hexmesh cover
Replies: 18
Views: 4619

thanks... I was going to use the Phantom 500, but after a week it started making a cycling buzzing. Then I found I wanted an RoHS PSU (to have less exposure to toxics for me and my family), and also wanted a larger wattage PSU so the power signal would be cleaner. The Phantom was great tho, and I've...
by jonjan
Wed Jun 07, 2006 9:22 am
Forum: Power Supplies
Topic: Mod PSU with copper/alu heatsinks, quiter fan, hexmesh cover
Replies: 18
Views: 4619

The db rating of every fan goes up when the cfm is increased......more airflow equals more noise. Where the fans differ is the sounds of the fan motor. A good sleeve bearing fan such as a Yate Loon, will be quieter than the same fan with ball bearings at the same cfm. Some fan brands just have nois...
by jonjan
Wed Jun 07, 2006 1:43 am
Forum: Power Supplies
Topic: Mod PSU with copper/alu heatsinks, quiter fan, hexmesh cover
Replies: 18
Views: 4619

The sound specs published by SilenX are lies......70cfm of airflow will be closer to 40db than 14db. Will a 120mm fan that thick actually fit inside that psu? Excellent :) I've heard before people say SilenX lied about their cfm and db numbers. I'm looking to explore this.. see what the real number...
by jonjan
Wed Jun 07, 2006 1:35 am
Forum: Power Supplies
Topic: Mod PSU with copper/alu heatsinks, quiter fan, hexmesh cover
Replies: 18
Views: 4619

copper heatsink PSU, my drawn planned mod, 70cfm at 14db

Using copper heatsinks would be nice. SilenX has a PSU with copper heatsinks http://www.subzeropcs.com/silenx_600_watt_psu_ix_pro_series.html it is 600watts and 14db, and 85% efficiency and active pfc... all great but it's also modular and not RoHS Compliant (I only get RoHS parts when possible, and...
by jonjan
Mon Jun 05, 2006 12:02 pm
Forum: Power Supplies
Topic: Mod PSU with copper/alu heatsinks, quiter fan, hexmesh cover
Replies: 18
Views: 4619

Mod PSU with copper/alu heatsinks, quiter fan, hexmesh cover

I'm modding a PSU (Fortron FX700) and thinking about adding these copper ramsinks to the aluminum heatsinks that are inside the PSU. I know this will void warranty, and I know PSU's are dangerous, and to wait 24+ hours after they're unplugged to open the cover. My question is, since the aluminum hea...
by jonjan
Fri May 26, 2006 4:24 pm
Forum: Consumer Advocacy
Topic: Antec Phantom Users Poll
Replies: 211
Views: 261527

Antec service is good, but I just returned the Phantom

I contacted the email, and the person said he has ceased personally handling the issues. He was only doing it personally when there was an initial lot of problems. He had another representative contact me, who was very courteous. But I decided to return the PSU for a refund instead, so I can't say h...
by jonjan
Mon May 22, 2006 7:52 pm
Forum: Consumer Advocacy
Topic: Antec Phantom Users Poll
Replies: 211
Views: 261527

my Phantom 500 is making a cycling buzzing sound

I bought this PSU on 5-2-06 and have used it for maybe 5 days (I'm building a new computer) Here is what issues I was having: (I emailed the Antec VP of Sales, who apparently has been replacing the defective units in a stellar manner: (his email is at this page http://forums.silentpcreview.com/viewt...