Tom's Hardware > Forum > CPU & Components > Power Supplies, PC Cases & Case Mods > New Build - CORSAIR 1000w or P & C 750 W PSU????

New Build - CORSAIR 1000w or P & C 750 W PSU????

Forum CPU & Components : Power Supplies, PC Cases & Case Mods - New Build - CORSAIR 1000w or P & C 750 W PSU????

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splashedwater   11-18-2008 at 11:59:24 PM

Hi guys,

I've spent days researching this new build but am having a tough time deciding on a power supply. My problem is I would like one that is somewhat future proof for upgrades over the next four years while staying as low cost as possible. I realize the 1000w is an overkill for this current system but and 2.5 times the cost of the 750w but... how long in the future until graphic cards in crossfire or sli will need one of these beasts? Do PSU's rapidly go down in price like other components if i want to upgrade in the future?


The two PSU's im considering are the:

PC Power and Cooling 750w $99 after rebates

http://www.newegg.com/Product/Prod [...] 6817703009


and the...


Corsair 1000w CMPSU-1000HX $239.99 after rebates

http://www.newegg.com/Product/Prod [...] 6817139007



Here is my build:

MSI X58 Platinum
http://www.newegg.com/Product/Prod [...] 6813130216
Intel Core i7 920 (plan to overclock a little but nothing extreme)
http://www.newegg.com/Product/Prod [...] 6819115202
Corsair XMS3 Tri Channel 3GB (eventually will fill all six slots)
http://www.tigerdirect.com/applica [...] u=C13-2042
NZXT TEMPEST
http://www.newegg.com/Product/Prod [...] 6811146047
2 X 4850 both OC
http://www.newegg.com/Product/Prod [...] 6814121272
1tb Caviar Black
http://www.newegg.com/Product/Prod [...] 6822136284
... Also a dvd burner and in the future a blu ray player


Any help greatly appreciated!

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ghostmann   11-19-2008 at 12:12:15 AM
- 1 +

The only reason you would need 1000w PSU is if your doing 3 hd4850 or 2 hd4870x2. Otherwise the 750 would be plenty. Only other advantage for the corsairs is that is modular versus wired so you only use want you need. Look at my sig below I'm using 620hx modular with the HD4850 Xfire and OC Q6600 and works great all on 620w. Also you might want to look at buy.com they have the cosairs 750w at a bargin price cheaper than PC&C.

Reply to ghostmann
gahleon   11-19-2008 at 12:22:51 AM
- 0 +

Yeah I agree with the guy above, the 1000 watt is way overkill. The peak power on the silencer 750 is actually 850 watts and it is continuous 750 at 40C. It is more than enough because the i7 core 920 uses less power with the dynamic core throttling. Those 4850's aren't going to use tons of power! You'll do just fine with the PCPower. Good luck bro.

Reply to gahleon
splashedwater   11-19-2008 at 12:37:50 AM
- 0 +

Thanks for the help guys! Do you know if power supplies hold there value pretty good, or do they lose it quickly with time like other computer components?

Reply to splashedwater
jerreece   11-19-2008 at 12:44:46 AM
- 0 +

Resell value on a power supply can't be very good.

First of all, Power Supplies actually lose their total wattage for output over time.

I might be willing to buy a cheap video card off someone, but personally I wouldn't buy a used power supply. That's just me though. ;)

------------------------------ i5-750 @ 2.66Ghz / Gigabyte GA-P55-UD4P / Xigmatek HDT-S1283 (Waiting for Bracket)
2 x MSI GTX 260 Core 216 SLI (655Mhz) / 4GB GSkill DDR3 1600 9-9-9-24 @1.5v
2 x WD Caviar Black 1TB / Thermaltake Armor BWS8003
Win 7 64bit / Antec TPQ-850
 Reply to jerreece
ragsters   11-19-2008 at 12:47:03 AM
- 0 +

I would say out of every component in a system the power supply is probably the one that holds the most value for the longest period of time. Oh and about the PSU's zipzoomfly has the 1000w for $220 after MIR.

http://www.zipzoomfly.com/jsp/Prod [...] e=10008048

Reply to ragsters
gahleon   11-19-2008 at 12:48:09 AM
- 0 +

I mean if you want to resell a psu you technically could. Especially with the silencer 750. That thing has extremely high quality manufacturing. However, I will say that if you do have a clear side panel and the case has bad cable management system then you want to go with a partially modular design. What is sweet is that the silencer has a single 60Amp 12V rail! You should go to pcpowerandcooling's website and read up on the psu myths. It is a great site!

[url=http://www.pcpower.com/technology/myths/][/url]

Reply to gahleon
splashedwater   11-19-2008 at 01:14:58 AM
- 0 +

Thanks you guys rock so hard! I appreciate you going out of your way to help me out and find deals for me. Thank you.

Reply to splashedwater
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