Member Avatar for Newber

Will 585 PS be enough for this system?

Biostar TForce TF7025-M2 Motherboard
AMD64 X2 4200+ 2.2Ghz Dual Core Processor
GeForce 7800 gs Graphix Card
2GB High-Speed DDR2-800 Memory
80GB Hard Drive
With 2 Stock Case Fans

Basically I am turning my old gaming PC into a web browsing and dling machine. At the same time buying a cheap Barebones Kit and inserting my old GC into this machine. I plan on using the new pc strickly for gaming mmorpgs and to keep it away from hackers, keyloggers ect...

And does anyone know of any good barebones sites? I browsed a few but they seemed to be about the same price and if I have to upgrade the PS it just doesnt seem worth it.

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  • Latest Post Latest Post by caperjack

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For the parts listed by (Biostar TForce TF7025-M2, AMD64 X2 4200+, GeForce 7800 GS, 2GB DDR2, one HDD and two case fans), a genuinely good-quality 585W ATX supply will typically be enough at stock clocks. The important points are actual +12V capability and connector/case compatibility, not the printed total wattage alone. Barebones kits often use small or proprietary PSUs that look fine on paper but cannot deliver sustained 12V current to a discrete GPU.

Practical checks that resolve the uncertainty:

  • Confirm the PSU label for the +12V amperage and, if necessary, add rails to get the combined +12V current. Convert to useful watts with 12V * A (for example, 12V * 38A = 456W) — that number is what the CPU+GPU draw from, not the total wattage.
  • Verify the video card’s auxiliary power connector (some 7800 GS cards need a 6‑pin PCIe plug). Proprietary or SFX supplies sometimes lack the right cables or the current capacity.
  • Estimate system draw with a calculator such as the and measure real-world wall power with a meter to cross-check (divide wall watts by efficiency to get DC load).
  • Allow ~20–30% headroom for aging, peak loads and any future upgrades.

Agreeing with , brand and rail specs matter far more than the sticker number; cheap units routinely overstate capabilities. In line with ’s barebones suggestions, any bargain barebones purchase should be checked for PSU type and +12V capacity before committing — replacing a tiny bundled supply often negates the savings.

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Member Avatar for jbennet

yeah it should be enough

550w runs my radeon x1950 pro 512mb, 2gb ram and a pentium 4 extreme

depends on how cheap the psu is though. a cheap psu may say 500w but only actually produce 300w. also the voltages on the 12v matter for the video card

a high end card like my x1950 needs 30a on the 12v. a 12v rail is usually 16 (even less on a cheapo psu) so i had to look for one with dual or quad rails


in terms of barebones, in the UK i use "Novatech"

Member Avatar for caperjack

full and barebones systems here in canada on ebay .good prices i think .



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