Some clarifications on hardware:
Memory - DDR3 Memory DDR3 800/1066/1333/1600*/1800*/2133*(OC)
Does This Mean DDR3 1600Mhz WIll Run on OCed Mobo ??
You would need to tell the exact memory model number with brand. For example Corsair TWIN2X4096-8500C5. We can then check the EPP/JEDEC setting for the RAM. Those timing above mean that the board will support the above ram speeds, but YES, it MIGHT need to be OC'ed, for FSB : DRAM ratios. But will support.
I am Finding the CM GX750 [Rs 6,500] bit expenisive and want to know that my New Config can Be Run Wid The GX650 [Rs 5,500]
Latest Config -
Proccy: AMD Phenom II X6 1090t 3.2Ghz [Rs 14,500]
Mobo: MSI 890GXM-G65 [Rs 7,350]
GPU: MSI HD5870 [Rs 22,300]
RAM: G-Skill Ripjaws 4GB kit (2x2GB) 1600Mhz [Rs 6,850]
HDD: WD Caviar Black 1TB [Rs 5,000]
Monitor: BenQ 24" G2420 Full HD LCD [Rs 11,300]
Cabby: Still Confused b/w CM 690 or CM690 II - Pls Help
PSU : CM GX650 or GX750 or Silent Pro 700M or Silent Pro 600M - Pls Help
I Dont Have Much Money After All This So A PSU Wid Price More Than 7k Will Be A No From Me.
SMC Website Says @ Silent Pro 600M -
Output Capacity600W Max. Output Capacity720W
And Normal Efficiency Of The 80+ PSUs Are 85% . So Will This PSU(normally) give POWER = 85% of 600 or 85% of 720 ?
Also Is The RAM I Have Finalled Compatible As A 8GB set-up (4x2GB)
P.S. - CM SilentPro 700M [Rs 7,900] - SMC Price
CM SilentPro 600M [Rs 6,750] - SMC Price
CM SilentPRO is decent. Though ask SMC the price for Corsair VS550 unit. It is rock solid.
Efficiency:
Okay guys, for the record. Many guys have a misconception about efficiency here. It is not efficiency multiplied to the rating -- to get the throughput.
This does not work:
PSU rating = 750W
Efficiency rating = 80%
PSU Draw = 750W
PSU Throughput = 750 x (80/100) = 600W
This works:
PSU rating = 750W (A)
Efficiency rating = 80%
PSU Draw = 750 / (80/100) = 937.5 (B)
PSU Throughput = 750W
Calculated Efficiency = (A/B) * 100 = 80%
The efficiency clearly translates too, how much power is drawn from the socket (which you are billed for), to the ratio of how much clean usable power it can provide as output.
Efficiency Level Certifications:
These are industry standards which say, how much constant, spike free power a PSU will supply at three different load levels. For example:
To qualify for 80 PLUS, a power supply must achieve at least 80% efficiency at three specified loads (20%, 50% and 100% of maximum rated power) To get this certification it must pass all tests at 50C, as the temperature metric.
The current ratings are:
*img26.imageshack.us/img26/8331/energylevelscertificati.jpg
And some had asked about rails (somewhere):
"With all the hype about multiple 12-volt rails (ads claim that two rails is better than one, five is better than four, etc.), you'd think it was a better design. Unfortunately, it's not!
Here are the facts: A large, single 12-volt rail (without a 240VA limit) can transfer 100% of the 12-volt output from the PSU to the computer, while a multi-rail 12-volt design has distribution losses of up to 30% of the power supply's rating. Those losses occur because power literally gets "trapped" on under-utilized rails. For example, if the 12-volt rail that powers the CPU is rated for 17 amps and the CPU only uses 7A, the remaining 10A is unusable, since it is isolated from the rest of the system.
Since the maximum current from any one 12-volt rail of a multiple-rail PSU is limited to 20 amps (240VA / 12 volts = 20 amps), PCs with high-performance components that draw over 20 amps from the same rail are subject to over-current shutdowns. With power requirements for multiple processors and graphics cards continuing to grow, the multiple-rail design, with its 240VA limit per rail, is basically obsolete.
PC Power and Cooling is once again leading the industry. All of our power supplies now feature a large, single 12-volt rail. The design is favored by major processor and graphics companies, complies with EPS12V specs (the 240VA limit is not a
requirement) and is approved by all major safety agencies such as UL and TUV.3"
Also these can be read
here and
here and
here.
Overall I can say, reading the above links..even multi rail is better, as long as one calculates the PSU requirement well...!
The Corsair HX450 and VX450 both offer 33A on the 12V rails.
Hope this makes sense.
