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Jeantech 405W + GTX 275

Last response: in Components
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September 2, 2010 10:44:15 PM

Okay so ive been running this RIG for quite some time now with no problems what so ever this psu seems to be quite decent. im wondering if i upgrade my HD4870 to a GTX275 will it run my current rig is this

Intel core 2 Quad Q9300 2.5Ghz @ 3.4Ghz 1.26v
4GB 800Mhz ram
ATI Radeon HD4870 1GB
2x 500GB HDD
MSI P45 Platinum
Jeantech 405W Psu Dual Rail 12V1= 17a 12v2=17a
12v MAX combined = 300w
5V max combined = 130W

Now between the HD4870 and GTX275 i heard there is a 20-30 watt difference im not to sure though. Also id be sticking my quad core on stock clocks back to 2.5Ghz on 1.18V to save about 40w of power.. Can the GTX275 run? the HD4870 has ran flawlessy for 8 months i had my quad @ 3.6Ghz before and used to game a lot.

More about : jeantech 405w gtx 275

a c 139 ) Power supply
September 2, 2010 10:52:22 PM

Those numbers sound about right.
You should be OK changing out video cards.
Rolling back your CPU to stock for installation and testing is a smart move.

a c 139 ) Power supply
September 2, 2010 10:54:06 PM

You're probably working that PSU really hard!
Have you checked the heat output coming out the back of your PSU under gaming loads?
How warm is it compared to idle loads?
September 2, 2010 11:01:07 PM

WR2 said:
You're probably working that PSU really hard!
Have you checked the heat output coming out the back of your PSU under gaming loads?
How warm is it compared to idle loads?

Not hot cold-warm gaming, but i should be okay now rolling back the quad to stock means id be saving 10w with the GTX275 than my oced quad + 4870 which seems smart for now, in a week ill be looking at a corsair HX750W. so no worrys i didnt get an ATI 4890 because Nvidia are better optimized for games.
!