Did those open box items come with everything the normal ones did or were they missing the cables, etc.? I've been kind of curious about this, since the description Newegg has on open box items seems to indicate that none of the accessories are included.
As far as overclocking goes, if he is going to be doing that then he should for sure get a power supply with better specs, particularly I mean more amps for 12 volts. Especially with these power supplies that have multiple 12 volt rails, the higher end ones are more flexible with what percentage of the maximum current can go across each 12 volt rail, where lower end ones can only divide it up evenly, which reduces the effective capacity of the power supply in a way. If it is a low end one of the single 12 volt rail power supplies, then it is typically even worse off, with the typical cheap ones of that type not even having the capability of delivering most of the power through the 12 volt rail, which is the most heavily used one these days.
For example, my power supply is only a 485 watt and yet it can do 22 amps on either of the two 12 volt rails, up to a combined total of 32 amps. That Rosewill unit can do 18 amps max on either of the two, up to a combined total of 35 amps. Basically mine can split the maximum power available to each rail to ~68%/32% rather than being limited to only ~50%/50%. This means that you can have a more power hungry device (or devices) on one side of the PSU's power than on the other side, even using more than half the 12 volt power, and it will still work fine on mine but not on the other. This could especially be a significant factor if SLI or CrossFire comes into play, and even more so if overclocking the cards as well.
If you want at least a 550 watt, this looks like it would be a good one:
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139004It currently has a $20 rebate on it, too. Besides that it supports higher output on the 12 volt rail, it is also more efficient in two different ways:
1) It has active PFC (power factor correction) compared to the Rosewill having no PFC. This means it has a much more efficient AC to DC power conversion. Through some complicated thing about how power usage is often billed by kilowatt hours and not volt-amp hours (I don't know the details), it might not save money on the power bill but will use less power and create less heat. As a side note, for some reason this also seems to make power supplies not require the usual 115/230 volt switch on the back.
2) It also has higher efficiency than the Rosewill model for the parts after the AC to DC conversion. This means there will be additional power savings, but these savings will affect what is measured on a watt power meter, unlike the above. As above, this also makes it create less heat because of less wasted power.
Post has been edited 2 time(s), last time on Apr 6 2009, 6:46 pm by ShadowFlare.
None.