ChibiCrow
08-30-2006, 10:14 AM
After 5 years I finally decided to build a new machine... waiting that long seems to have resulted in some gaps in my tech knowledge. :p I need some advice on a power supply for this build.
The biggest issue I think is the GeForce 7900 GTX, if I'm correct it wants at least 450w, 12V@26A and a PCI-e connector. Here are the other components that may need consideration when choosing the PSU...
AMD 64 X2 Dual-Core 3800+ CPU
ABit KN8 Ultra MB (24 pin)
Corsair D400 1G x 2 (not sure if this matters to the PSU but listed it just in case)
74G WD Raptor 10k SATA HD
The case is an Antec solution SLK3800B, it came with a PSU in it but it appeared to be dead. With the CPU, memory, mobo and graphics card all plugged in it failed to turn on at all, and did not even light the LED's on the motherboard that indicate whether or not the MB is getting power (on my other abit the LEDs will light even if the graphics card is not plugged in), I even tried jumping the 20+4 pin connector and got nothing. Then proceded to check it with a volt meter... pretty sure I can declare it dead as a doornail. Since is was only a 400W is is likely insufficient anyway so I am looking for a suitable replacement.
I'd prefer one with the following priorities in this order:
- Stable... hopefully won't burn out in 3 months or less :cool: fits in case, and will provide adequate power for the 7900 GTX
- Costs around or less than $100
- Vents out the rear, won't require me to cut holes in the box
- Quiet isn't really a priority, my old box is open with a floor fan blowing directly into it.. :confused: just as long as it doesn't make a high pitched whine that gives me a headache. :cool:
P.S. the case has a 120mm fan in front mounted low, another 120 in the back, mounted just below the power supply, and a side fan with an air guide channelling air off the CPU fan on the side. I have a copper heatpiped ThermalTake sink on the CPU with Arctic Silver applied, and heat spreaders for the RAM... do you all think this will be sufficient cooling for this setup? I know some of these components can get quite hot especially at full load. :p
Thanks in advance for any advice, much appreciated!
The biggest issue I think is the GeForce 7900 GTX, if I'm correct it wants at least 450w, 12V@26A and a PCI-e connector. Here are the other components that may need consideration when choosing the PSU...
AMD 64 X2 Dual-Core 3800+ CPU
ABit KN8 Ultra MB (24 pin)
Corsair D400 1G x 2 (not sure if this matters to the PSU but listed it just in case)
74G WD Raptor 10k SATA HD
The case is an Antec solution SLK3800B, it came with a PSU in it but it appeared to be dead. With the CPU, memory, mobo and graphics card all plugged in it failed to turn on at all, and did not even light the LED's on the motherboard that indicate whether or not the MB is getting power (on my other abit the LEDs will light even if the graphics card is not plugged in), I even tried jumping the 20+4 pin connector and got nothing. Then proceded to check it with a volt meter... pretty sure I can declare it dead as a doornail. Since is was only a 400W is is likely insufficient anyway so I am looking for a suitable replacement.
I'd prefer one with the following priorities in this order:
- Stable... hopefully won't burn out in 3 months or less :cool: fits in case, and will provide adequate power for the 7900 GTX
- Costs around or less than $100
- Vents out the rear, won't require me to cut holes in the box
- Quiet isn't really a priority, my old box is open with a floor fan blowing directly into it.. :confused: just as long as it doesn't make a high pitched whine that gives me a headache. :cool:
P.S. the case has a 120mm fan in front mounted low, another 120 in the back, mounted just below the power supply, and a side fan with an air guide channelling air off the CPU fan on the side. I have a copper heatpiped ThermalTake sink on the CPU with Arctic Silver applied, and heat spreaders for the RAM... do you all think this will be sufficient cooling for this setup? I know some of these components can get quite hot especially at full load. :p
Thanks in advance for any advice, much appreciated!