Search found 72 matches
- Sat Sep 24, 2011 9:14 pm
- Forum: Deals, Vendors and Classifieds
- Topic: FS: Intel Celeron 430 LGA775. Very Low Power CPU
- Replies: 0
- Views: 1941
FS: Intel Celeron 430 LGA775. Very Low Power CPU
My home server is going to be used for other duties and the processor will be upgraded. Just wondering if there is any interest in the Celeron 430 processor that's in it? This is a well known processor for its low power consumption, yet higher than Atom performance. Can easily build a sub 40-50 watt...
- Fri Apr 08, 2011 8:47 pm
- Forum: Silent Storage
- Topic: Solar Activity and the Safety of your Backups
- Replies: 16
- Views: 10239
Re: Solar Activity and the Safety of your Backups
I dont think a widescale loss of data has ever been recorded due to solar activity, but in theory it could happen. Background cosmic radiation that leaks through our atmosphere can cause random bit flips here and there on memory devices. Up in space with no atmosphere, it is even a bigger problem, w...
- Tue Nov 23, 2010 5:57 am
- Forum: Power Supplies
- Topic: Efficiency marked on brick as Roman numeral
- Replies: 4
- Views: 2011
Re: Efficiency marked on brick as Roman numeral
Ive noticed this too. My old Dell Inspiron 6400 came with a power supply that was "IV" whereas my new Studio XPS 13 has a slimmer power supply ranked as "V." Curious as to how this translates into efficiency percentage wise.
- Sun Oct 03, 2010 9:39 am
- Forum: Silent Storage
- Topic: The purpose of the primary hard drive sleeping?
- Replies: 8
- Views: 3895
I agree. With Windows operating systems, the OS is constantly reading/writing to the disk it seems. I dont even know why there is an option to set the hard drive to sleep after x minutes of activity, because realistically, I dont think Ive ever seen a Windows OS that could maintain 5+ minutes of no ...
- Mon Apr 26, 2010 6:01 am
- Forum: Power Supplies
- Topic: Is PicoPSU enough?
- Replies: 3
- Views: 2218
4 hard drives might be pushing it. Keep in mind that the startup peak power requirements (even for the WD Green) can be 20W/each. The DC-DC power supplies are only a good novelty if you want something quiet and compact, but other than that, I really see no other reason to use them over a high effici...
- Sat Apr 03, 2010 3:31 pm
- Forum: Power Supplies
- Topic: Need some help interpreting power consumption results
- Replies: 3
- Views: 2072
- Fri Mar 19, 2010 6:16 am
- Forum: Power Supplies
- Topic: 12v 15A power brick for picopsu?
- Replies: 7
- Views: 3997
I bought a 15V version to charge lead acid batteries. Although it might be 12V output at a fairly high current, it doesnt say what the efficiency is. Im assuming that like with any switch mode psu, efficiency is going to be pretty low at small loads. I dont see the point in getting a 120VAC > 12VDC ...
- Fri Mar 12, 2010 7:21 am
- Forum: Silent Storage
- Topic: Which storage media can best endure hot automobile interior?
- Replies: 6
- Views: 3312
Winter will be a problem too. Below 0C the fluid bearings on any hard drive will start getting viscous and your drive will have problems spinning up. There are automotive grade drives however, that can withstand from -40C to +70C operational temperatures. Like the Seagate EE25, Hitachi Endurastar, a...
- Sun Mar 07, 2010 7:32 am
- Forum: Silent Storage
- Topic: WD20EARS or WD20EADS? What about seagate's 2tb drive?
- Replies: 60
- Views: 121566
Link to the claims? Only the older EACS drives count every single head load/unload in SMART. The newer EADS and EARS do not count those cycles in SMART. A SMART reported failure due to head parks doesnt mean that the drive has actually failed. Some people have 1 million+ head loads/unloads and the d...
- Sun Mar 07, 2010 7:09 am
- Forum: Silent Storage
- Topic: WD20EARS or WD20EADS? What about seagate's 2tb drive?
- Replies: 60
- Views: 121566
The head parking issue is overhyped. I used to be concerned about it too, but the WD Green drives have been out for a long time now and there isnt a SINGLE report of a drive failing due to head load/unloads. For data storage I would actually choose the WD Green due to low power consumption, and the ...
- Fri Mar 05, 2010 7:13 am
- Forum: Power Supplies
- Topic: PicoPSU-80 with 150W brick?
- Replies: 11
- Views: 8879
Wow that's way too expensive. The extra efficiency would practically never pay itself back as compared to the high initial cost. I've went through the Energy Star's list of power adapter efficiencies and if 120W is enough for you, you can find a LiteOn PA3717U-1ACA which is about 90% efficient for a...
- Tue Mar 02, 2010 9:02 am
- Forum: Power Supplies
- Topic: PicoPSU-80 with 150W brick?
- Replies: 11
- Views: 8879
- Mon Mar 01, 2010 3:48 pm
- Forum: Power Supplies
- Topic: Fanless 130W ATX PSU with 120W AC adapter *Video.
- Replies: 186
- Views: 207889
- Mon Mar 01, 2010 3:45 pm
- Forum: CPUs and Motherboards
- Topic: 740G motherboard with staggered spin up support?
- Replies: 7
- Views: 4844
It's not just the 12V rails, but the 5V rails pull a bit of current during spin up as well if I recall correctly. I think you are cutting it a bit close powering 4 drives with the Pico120 and your 110W brick, but it doesnt hurt to try and I think it should work. The GP are supposed to have reduced s...
- Sat Feb 20, 2010 11:12 am
- Forum: Power Supplies
- Topic: Fanless 130W ATX PSU with 120W AC adapter *Video.
- Replies: 186
- Views: 207889
Unfortunately my camera broke and I've been putting off buying a new one. My cell phone doesnt take very good close up pics. But basically how I did it was take apart an old broken ATX power supply. To fit my particular AC adapter and the DC-DC was a real tight fit, but I simply put the circuit boar...
- Fri Feb 19, 2010 10:48 pm
- Forum: Power Supplies
- Topic: Fanless 130W ATX PSU with 120W AC adapter *Video.
- Replies: 186
- Views: 207889
Im running the 80mm fan at 5V, it normally consumes 0.2A at 12V. It's practically inaudible. I would say when it comes to cramming everything in a tiny ATX enclosure, then the fan is necessary because you can feel the exhaust to be somewhat warm even at these low loads. The DC-DC is very efficient a...
- Thu Feb 18, 2010 7:53 pm
- Forum: Power Supplies
- Topic: Fanless 130W ATX PSU with 120W AC adapter *Video.
- Replies: 186
- Views: 207889
Ok so I paired up the Winmate 120W DC-DC with a 90% efficiency 120W power brick. With some hacking, I managed to stuff everything inside a standard ATX power supply enclosure + slow spinning 80mm fan. With my old Antec EA380 80+ psu, idle power consumption of my server was 40W. With the new DC-DC I ...
- Thu Feb 18, 2010 10:16 am
- Forum: Power Supplies
- Topic: How to modify ATX PSU to output higher voltage? (14V+)
- Replies: 5
- Views: 21627
- Thu Feb 18, 2010 9:16 am
- Forum: Power Supplies
- Topic: How to modify ATX PSU to output higher voltage? (14V+)
- Replies: 5
- Views: 21627
"Variable capacitor" ?? Think again. What do you mean? I understand the higher quality PSUs have voltage stabilization features, but Ive taken apart a bunch of cheap power supplies where there was a variable capacitor that you can change with a screw driver, but I was only able to get the +12v rail...
- Wed Feb 17, 2010 7:40 am
- Forum: CPUs and Motherboards
- Topic: Searching for mATX Low Power Server Motherboard
- Replies: 18
- Views: 12294
Two boards that meet the low power and 6 SATA requirements would be the popular Biostar A760G (hard to find this one) and the Gigabyte GA-MA74GM-S2 (no ECC). Both are low cost. Is ECC even necessary for home server use, or is it just snake oil? I havent found any sort of documented evidence or test ...
- Tue Feb 16, 2010 2:41 pm
- Forum: Silent Storage
- Topic: External drive for backup
- Replies: 3
- Views: 2097
- Sun Feb 14, 2010 8:59 pm
- Forum: Power Supplies
- Topic: UPS + PSU = Buzzing? Will this damage anything?
- Replies: 1
- Views: 1551
UPS + PSU = Buzzing? Will this damage anything?
Ive been having a few long power outages recently. My WHS machine is hooked up to an APC BE-450 UPS with the Grid Junction add-in setup such that the WHS will shut itself off when UPS power hits 50%. When the WHS is on UPS power, the power supply (Antec Earthwatts 380) has a LOUD buzz. I've never he...
- Sun Feb 14, 2010 9:07 am
- Forum: Power Supplies
- Topic: Fanless 130W ATX PSU with 120W AC adapter *Video.
- Replies: 186
- Views: 207889
So isnt it kind of pointless to buy this DC-DC if it will be used with a psu brick that's less than 85% efficient? Assuming the DC-DC is 93% efficient and you use a 85% efficient brick, then your overall efficiency is only roughly 79%. Even under low loads of 40W-ish, you would probably get roughly ...
- Sat Feb 13, 2010 12:46 pm
- Forum: Power Supplies
- Topic: How to modify ATX PSU to output higher voltage? (14V+)
- Replies: 5
- Views: 21627
How to modify ATX PSU to output higher voltage? (14V+)
Not for computer use, but I need a high current power supply that can deliver 15+ amps at 13V or above (ideally 14V, but no more than 15V). All the high current power supplies are expensive, so I was wondering if anyone knows of a way or could point me in the right direction to modifying an existing...
- Tue Feb 09, 2010 9:14 am
- Forum: Silent Storage
- Topic: Do drives get noisy?
- Replies: 10
- Views: 4843
I cant say for sure, but I could swear some of my drives were noisier after 10k power on hours. Such as my WD Blue SE16. I have read that over time and heat the fluid bearings start to evaporate, which could be a possible explanation. With the older bearing drives, the bearings could wear over time ...
- Sun Feb 07, 2010 12:52 pm
- Forum: Deals, Vendors and Classifieds
- Topic: 130W ATX power supply + 120W AC adapter 54$
- Replies: 153
- Views: 191861
Has anyone tested whether the improvements of going DC-DC are actually that significant as opposed to maybe just getting an 80plus psu like an Antec EA380? Even if you were to pair it up with a 90% efficient AC-DC adapter, the combined efficiency of the DC-DC and the AC adapter will be only around 8...
- Sun Feb 07, 2010 12:41 pm
- Forum: Power Supplies
- Topic: <150W Gold/Silver/Bronze PSUs for i3/i5+H55/H57 ?
- Replies: 6
- Views: 3117
The Wintec 120W DC-DC is on sale for $30 shipped right now. Finding an efficient AC adapter is difficult, but the LiteOn PA3717U-1ACA is 90% efficient and can be had on eBay for $30. This is the setup that Im getting and Ill be attempting to cram everything into a standard ATX psu for a cheap $60 80...
- Sun Feb 07, 2010 8:32 am
- Forum: Power Supplies
- Topic: power supply recomendation
- Replies: 5
- Views: 2606
- Sat Feb 06, 2010 5:27 pm
- Forum: CPUs and Motherboards
- Topic: D510MO (Mount Olive) : 13watt Atom D510 mITX board
- Replies: 26
- Views: 36113
- Sat Feb 06, 2010 5:51 am
- Forum: Green Computing
- Topic: 47 watt 7 TB server (disks spun down)
- Replies: 8
- Views: 7586
Ive got the exact same motherboard and cpu as you. Ive noticed that you can't go any lower than 0.9v on the CPU or else you get stability issues. I get about 38-40W idling with no drives spun down, this is my setup (very similar to yours): AMD LE-1250 at 1ghz, 0.9v Gigabyte GA-MA74GM-S2 1 stick Cors...