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Upgrading PSU and Graphics card?

Last response: in Components
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June 9, 2011 8:14:11 PM

Ok guys, I had a motherboard fail back in November so I purchased a brand new pc bc the old one was unfortunately part of the cap plague made in 2006. The first problem I have is, the new pc is only a 300watt psu. Ive just realized that the card I bought with it (ATI HD 5450 1gb) requires minimum of 400watts. Why in the world would they give me that option for a card if the psu was underpowered for it?!

Either way, I had bought a OCZ 600W Stealth Xtream Power Supply back in Jan2010 and used it for a few months before the moboard died (pretty sure that helped it run its course on the old pc) but I still have it in perfect condition and pretty much new. I also had the Nvidia 9500GT card 1gb and have been reading the comparisons between the two cards and I think the 9500GT would be better than the 5450..am I correct?

If so, I would like to upgrade my new psu to put the 600watt in it and also put the 9500gt in it. I just want to make sure they are both compatible and will not overwork or throttle anything. I did all the research for what I need to know, I just want to make sure its the right choice..below is all the info you need :) 

Here are my computer specs-its the HP Elite HPE-400z customizable Desktop PC
Type Elite multimedia, value PC
Usage Home
Chassis uATX
Memory card reader 15-in-1 media card reader
Processors AMD
Total memory slots 4 DIMM
Ports 6 USB (2 front, 4 back), 1 IEEE 1394 (back)
Audio Front headphone, mic (7.1 speaker capable)
Total slots 1 PCIe (x16 graphics), 3 PCIe (x1), 1 MiniCard
Energy Star Qualified No
Power supply 300 watts
Storage bay HP Pocket Media Drive Bay
Dimensions 16.85"(L) x 7.05"(W) x 15.79"(H)
Modem Optional
Network interface Integrated 10/100/1000Mbps (Ethernet)
Software kit HP Pavilion bundle with MediaSmart Software Suite
DVD/CD burner software Cyberlink DVD Suite Deluxe
Tools Desktop icon for built-in desktop Help and Support Center
Warranty 1-year limited hardware
Support 1-year limited software, 1-year limited hardware support

Here are the 600watt psu specs:
Case Material
Aluminum
Case Color
Black
ATX Compliance
ATX 12V v2.2; EPS 12V v2.91
Power Provided
600 Watts
Drive/Power Connectors
(5) Molex 4-pin Connectors; (1) Floppy 4-pin Connector; (3) Serial ATA Connectors
Motherboard Power Connectors
(1) ATX 20+4-pin Motherboard Connector; (1) +12V 4-pin/8-pin Motherboard Connector
PCI-Express Power Connectors
(1) PCI Express 6-pin Power Connector; (1) PCI Express 6+2-pin Power Connector
Power Supply Cooling Fans
120mm Fan
PFC
Active Power Factor Correction
Input Voltage
AC 100V/240V
Input Frequency Range
50Hz/60Hz
Efficiency
80% @ 115 V (Typical Load); 83% @ 230 V (Typical Load)
Load Range
+3.3V@36A; +5V@30A; +12V1@18A; +12V2@18A; +12V3@18A; +12V4@18A
Protection
Overvoltage, Overcurrent, Short-Circuit protection
Dimensions (WxDxH)
5.9" x 5.5" x 3.4" (150mm x 140mm x 86mm)
Manufacturer Warranty
3 Year Limited Warranty

Here is the 9500 specs
http://www.nvidia.com/object/product_geforce_9500gt_us....

The rating is a 353: http://www.videocardbenchmark.net/video_lookup.php?gpu=...

Here is the 5450 specs
http://www.amd.com/us/products/desktop/graphics/ati-rad...

The rating is a 306: http://www.videocardbenchmark.net/video_lookup.php?gpu=...

Please tell me what you would do. Yes I do alot of gaming on my pc and I dont want to spend any money and being able to use the money I spent before would be a plus. Any help is appreciated!!
June 9, 2011 8:48:48 PM

anyone?
Score
0
!