Power supply upgrade Question

Hi all

This isn't a typical question. I read in all directions for an answer with nothing doesn't. I have HP Pavilion A1560n, which comes with a power of 300W. As most of you know, HP uses ATX power supplies and so for me to original power level, I need to know if the upgrade of power must be for the rail voltage 12V or 5V voltage rail. You're probably wondering the reason for the upgrade, and it's because I have a lot more hard and readers of DVD RW that I need to use this system. Think of this system as a station of mini Server (admittedly not the best system for this) If you want.

With hard drives, one might think that the new power supply should have a higher on the 12V rail power. One could argue that the ATX V2.3 is also a good choice here because it has more than one 12V rail and retro-compatible with ATX. However, the fact that 2 different HP technicians mentioned that I need to upgrade is the power rail 5V me puzzled. A third technician just told me I need more power from 12V every power that I have met has more power on the 12V rail, except for the couple who had the same amount of power of 12V as my original power supply and many more the 5V power and the 3.3V rail.

Could you please refer me to any documentation that could enlighten us in what route to go? Should I get an ATX upgrade that would increase the power on the 5V and 3.3V rails or V2.x ATX which will increase the power on the 12V rail.

Thank you

Jim

Won't you Dear?  How about $ 45 for a Fortron 600W with 80 + cert?  $ 35 yesterday with a $10 OFF coupon.  This unit is 580W for 12V output rate.  No need to worry about the modern 3.3 and 5V rails with PC since the maximum load will be less than 100W.  This device does not have no problem of transverse load... which means that the system can take as little as a few watts on 3.3 and 5 v rails and still be able to get close to 600 w total power.  You can buy the adapter to convert SATA connector Molex, or vice versa if you have plenty of HARD drive.

This power supply has three independent 12V rails, each rated up to 18A.  Say staying us cautious and rates from the coast to 16A by rail, one call always load to the top of each tubular structure with eight drives.  The processor and the motherboard to sit on the other 12V rail and you can put a high range GPU and a few additional hard disks on the 3rd rail.

The HP tech skill level can vary considerably.  Great people work cheap, so if you want good advice, then you should put these questions to the hardware enthusiast forum.

Let's take a specific example for illustration.  I have a WD 1 TB green drive on my test bench.  The label says A 0.70 @ 5VDC (3.5W) and A 0.55 @ 12VDC (6.6W).  Eight hard drives would put on 28W load on the charge of rail and 5V on the 12V rail 53W.  Double this amount if you want a sturdy margin of safety.

Your PC will probably rely on 180W peak due to the older Intel CPU.  I doubt that you will have no problem to start six drives on the PC with the stock power supply.

http://www.Newegg.com/product/product.aspx?nm_mc=AFC-&cm_mmc=AFC--_-na-_-na-_-na&item=N82E16817341010&CMP=AFC-C8Junction

Tags: HP Desktops

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