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Search: Posts Made By: mariush
Forum: PC Power Supply Discussion 5 Days Ago
Replies: 26
Views: 887
Posted By mariush
@jnv11 I disagree with you on some points. ...

@jnv11

I disagree with you on some points.

-12v doesn't have to be provided by a power supply, it's low amperage and a waste of a cable. If a motherboard wants to offer serial ports, it can...
Forum: PC Power Supply Discussion 2 Weeks Ago
Replies: 30
Views: 907
Posted By mariush
What do you mean by "a large number of HDDs" ? ...

What do you mean by "a large number of HDDs" ?

The quantity is important when you start a computer.

You should be careful about peak currents when hard disks are powered on, which are higher...
Forum: PC Power Supply Discussion 3 Weeks Ago
Replies: 7
Views: 216
Posted By mariush
If price isn't an issue, I would use a passively...

If price isn't an issue, I would use a passively cooled Seasonic power supply. For example, see:

* http://www.newegg.com/Product/Product.aspx?Item=N82E16817151097
*...
Forum: PC Power Supply Discussion 3 Weeks Ago
Replies: 5
Views: 272
Posted By mariush
Have a look at a typical NAS hard drive...

Have a look at a typical NAS hard drive datasheet:

http://www.hgst.com/tech/techlib.nsf/techdocs/0BF8B842F66D454288257C74007E842B/$file/DS_NAS_spec.pdf

Power
Requirement +5 VDC (+/-5%), +(12...
Forum: General Hardware 04-17-2015
Replies: 32
Views: 1,779
Posted By mariush
My newest purchase was a Hitachi NAS series 4 TB....

My newest purchase was a Hitachi NAS series 4 TB.

I've had WD black in my system which are great, I had WD blue (no complaints, gave it to my sister), I have WD green and I have some Seagate...
Forum: PC Power Supply Discussion 04-15-2015
Replies: 13
Views: 708
Posted By mariush
I have no problems working on ATX power supplies...

I have no problems working on ATX power supplies using an original Hakko 936 (with conical or regular flat tip for big jobs) or a Pace HW50 (when finer tips are needed)

They're both in the 50-60w...
Forum: PC Power Supply Discussion 02-24-2015
Replies: 14
Views: 910
Posted By mariush
You get a toroidal transformer with 115v and 230v...

You get a toroidal transformer with 115v and 230v primary windings and a 15v AC secondary and a 5-7v ac winding

15v ac gets rectified into about 21v DC, minus about 1-1.5v drop on the rectifier,...
Forum: PC Power Supply Discussion 11-29-2014
Replies: 7
Views: 450
Posted By mariush
The power supply you have now will probably work...

The power supply you have now will probably work just fine with your new system, as long as you don't install a modern dedicated video card that needs a lot of power to work.

Pentium G doesn't...
Forum: PC Power Supply Discussion 09-01-2014
Replies: 8
Views: 740
Posted By mariush
A dozen USB chargers in the lab: Apple is very...

A dozen USB chargers in the lab: Apple is very good, but not quite the best

http://www.righto.com/2012/10/a-dozen-usb-chargers-in-lab-apple-is.html
Forum: PC Power Supply Discussion 08-16-2014
Replies: 63
Views: 4,695
Posted By mariush
There's already a very good site for this :...

There's already a very good site for this : http://www.realhardtechx.com/index_archivos/Page541.htm

Toms Hardware also recently posted an article with info about OEMs and other things:...
Forum: General Hardware 07-09-2014
Replies: 2
Views: 669
Posted By mariush
First pin is always ground, next one is voltage,...

First pin is always ground, next one is voltage, then sense (tells rpm to mb), last is pwm control.

http://www.allpinouts.org/index.php/Motherboard_%28CPU%29_4_Pin_Fan
Forum: PC Power Supply Discussion 06-18-2014
Replies: 17
Views: 1,350
Posted By mariush
ATX standard says +/- 5% is permitted.. that's...

ATX standard says +/- 5% is permitted.. that's 11.4-12.6v ... So your 12.56 is still ok, in load (when playing games etc) the voltage will go down.

But in all seriousness, pretty much everything...
Forum: Electronic Component Discussion 06-17-2014
Replies: 2
Views: 1,356
Posted By mariush
USB is a very complex protocol - if the...

USB is a very complex protocol - if the microcontroller doesn't have built in hardware usb functionality, it's quite difficult to write code in a microcontroller to communicate to another device or...
Forum: General Hardware 05-29-2014
Replies: 11
Views: 1,083
Posted By mariush
You don't have to remove the cage, just get a saw...

You don't have to remove the cage, just get a saw blade and cut a strip, enough to not touch the video card. Cover the board with something before you cut, and remove hard drive. You don't want...
Forum: General Hardware 05-29-2014
Replies: 11
Views: 1,083
Posted By mariush
The size is pretty much standard. For the Fortron...

The size is pretty much standard. For the Fortron ones I linked to, the size is 140x150x85 .. so pretty much like your current power supply.
The specs are listed on Fortron's website:...
Forum: General Hardware 05-27-2014
Replies: 11
Views: 1,083
Posted By mariush
I had AMD video cards for a long time, so I'm not...

I had AMD video cards for a long time, so I'm not up to date with the nVidia models. If you like nVidia more, wait for others to recommend you some, or have a look at online reviews for some cards...
Forum: PC Power Supply Discussion 05-27-2014
Replies: 62
Views: 2,793
Posted By mariush
Without seeing the insides, I wouldn't know. The...

Without seeing the insides, I wouldn't know. The label could say anything, as this isn't a brand name power supply that would care about its reputation.

Since it's so old, some components inside...
Forum: General Hardware 05-27-2014
Replies: 11
Views: 1,083
Posted By mariush
Video card is very, very weak. Focus on...

Video card is very, very weak.

Focus on upgrading that. Look for at least a Radeon 7770 Ghz edition, or a r7 260 / 260x , or whatever nVidia has around the price of those cards. You're looking...
Forum: PC Power Supply Discussion 05-18-2014
Replies: 4
Views: 1,041
Posted By mariush
A single radeon 290x tri-x oc will use about...

A single radeon 290x tri-x oc will use about 260-300w, with occasional spikes of a few milliseconds where they go to about 350w.

Two of them will use about 600-650w on 12v.
The rest of your...
Forum: PC Power Supply Discussion 04-23-2014
Replies: 25
Views: 1,734
Posted By mariush
Leds these days are quite efficient. Some leds...

Leds these days are quite efficient. Some leds can be bright enough with just 2-3mA, some high brightness (small angle) leds can work even with 0.5mA or less.
Red leds have a forward voltage of...
Forum: PC Power Supply Discussion 04-20-2014
Replies: 3
Views: 776
Posted By mariush
Have a look at this section : ...

Have a look at this section :

http://www.digikey.com/product-search/en/power-supplies-external-internal-off-board/ac-dc-converters/590377

For example this for 38$ :...
Forum: Electronic Component Discussion 04-20-2014
Replies: 6
Views: 1,334
Posted By mariush
The normal design is to have male pins (header)...

The normal design is to have male pins (header) and use jumpers to short them. So I think you're talking about simple headers and jumpers.
...
Forum: Electronic Component Discussion 04-19-2014
Replies: 6
Views: 1,334
Posted By mariush
Lots of connectors and jacks have two pins......

Lots of connectors and jacks have two pins... just have to know where to look for them.

Knock yourself out:...
Forum: PC Power Supply Discussion 04-11-2014
Replies: 33
Views: 3,166
Posted By mariush
I'd rather have it set at 20v, the same voltage...

I'd rather have it set at 20v, the same voltage used on usb 3.0 (20v 5a max).
Not only that but it would also allow manufacturers to reuse curent laptop adapters that do 19v (and maybe mb makers...
Forum: PC Power Supply Discussion 03-31-2014
Replies: 18
Views: 2,454
Posted By mariush
http://www.jonnyguru.com/modules/NDReviews/images/...

http://www.jonnyguru.com/modules/NDReviews/images/AntecHCP1300/DSC_4667.JPG

Is it just me or one of those SMD components broke/fell down where that VR602 silkscreen text is?
Showing results 1 to 25 of 228

 
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