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dtc
29-03-10, 21:49
I plan to purchase a computer system with the following specs:

Core i5 750
4GB RAM
Normal graphic card with 512MB RAM

The system is not bought for gaming. However, I wish to overclock the cpu from 2.66GHz to 3.2GHz. Do you the following power supply is enough?

OCZ StealthXStream 400W Silent SLI/Crossfire Ready ATX2.2 Power Supply

Thanks.
Andrew Moore
29-03-10, 21:51
I have on a bench rig the OCZ stealth stream with an 8800gtx (thirsty for its age), an i3 530 at 4.6ghz and a TEC powered cooler that used 70w. I would say its pretty stable considering so yes. If your not looking to OC miles then you will be fine.


Andy
El Wayneo
29-03-10, 21:54
2nd-ed, although not needed as Andrew knows his stuff.
Gibbo
29-03-10, 22:05
Hi there

Yes OCZ 400W is a great unit.
dtc
30-03-10, 12:21
I have on a bench rig the OCZ stealth stream with an 8800gtx (thirsty for its age), an i3 530 at 4.6ghz and a TEC powered cooler that used 70w. I would say its pretty stable considering so yes. If your not looking to OC miles then you will be fine.
Andy
The default clock frequency of Core i3 is 2.93Hz and yours is OCed up to 4.6GHz! I thought this OC is very high...
Romulinx
04-04-10, 17:07
You should also consider the fans connected to the system. These also burn watts, so if you have quite a few it could make a difference! :)
sibeer
05-04-10, 13:08
Should be fine with a low range GPU, but I would chuck a bit more headroom in for upper-midrange or top range cards. Even older top range like 8800GTX and 3870 have quite high requirements.
Iaink
05-04-10, 13:56
I'd say it was, I built my dad a system with that PSU, it has a PII 940 and i've run it with an 8800gt fine on that PSU, so should be up to the job
mac124
05-04-10, 14:42
Define "normal graphic card"?

If the graphic card doesn't require any extra power, ie doesn't have the psu plugged directly in it then yes a decent 400w psu will be fine.
osx
05-04-10, 15:41
Should be fine for any single GPU system. It will cope with +450W loads so there is also some more headroom. Running a E8400 at 4GHz, 3 disks, fan controller and a 4850 without any problems at all.
dtc
06-05-10, 15:01
Define "normal graphic card"?

If the graphic card doesn't require any extra power, ie doesn't have the psu plugged directly in it then yes a decent 400w psu will be fine.
I will buy 8600GT 256MB... quite low end...
ZodiarK
06-05-10, 15:54
it will quite easily fly through any single gpu card system i wud not worry (not sure on the 480 and 5970) but all others i shud think so.
dtc
07-05-10, 02:10
Say I buy OCZ 400W, i5 750 and GA-P55A-UD3R. I find out the m/board requires 8-pin CPU power connector whilst the OCZ has only 4-pin connector. Do you think it's a problem?

Thanks.
Terbinator
07-05-10, 02:14
Say I buy OCZ 400W, i5 750 and GA-P55A-UD3R. I find out the m/board requires 8-pin CPU power connector whilst the OCZ has only 4-pin connector. Do you think it's a problem?

Thanks.

No. It will work with a 4pin one.