Overclock.net › Forums › Components › Power Supplies › The Ongoing Question - A Power Supply...
New Posts  All Forums:Forum Nav:

The Ongoing Question - A Power Supply...

post #1 of 27
Thread Starter 
I left my computer on overnight and woke to find a BSOD report by windows. ( greaaaaat)

At the moment my system is what I would think is stable. Im running a custom watercooling kit on a never oc'ed E6750 which has never failed me in the past. My RAM is only 3 weeks old (had to get it RMA'd with the newer model timings of 5-5-5-15 as opposed to the old, too fast and demanding 5-5-5-9) My Graphics card is also new, only a few months old, never overclocked, stock speed of at least 59% to keep it below temps of 50 degrees with TX-2 Tuniq extremely high temp conductive thermal paste on all components. My motherboard is also fairly new and I have used it in all system builds without problems, and have also flashed to the latest bios.

In this case. I would say the only thing old and possibly failing me is the OCZ 520w powerstream I have thats running EVERY connection, every molex, every sata, except the two floppies.

Its a reliable old one, taken me places (12.6V hehe), but it is worrying me as last year my mate who bought one the same time I did experienced a good old PSU blow up... killing his mobo.

Im considering a few. Which should I get?

1. Ocz GameXtream 700 or 850W
2. Pc Power and Cooling Turbo-Cool 860W
3. Pc Power and Cooling Silencer 750 Quad (Red)
4. Any more suggestions???

As you can see im stuck to the Ocz Technology Company products. I am also considering future SLI hence the sli power supplies with high wattage. It is also, however, to contain the power requirements of my 6 Hard Drives.
    
CPUMotherboardGraphicsRAM
E8500 @ 3.2gHz Gigabyte x48-DQ6 BFG 9800GTX+ (G92) OC Edition 2gb Patriot D9s + 2gb G.Skill Pi PC2-8500 1066Mhz 
Hard DriveOptical DriveOSMonitor
2.5 Tb of WD's SATAII (2 x 500 in RAID 0) Pioneer SATA 20x DVDRW Vista Ultimate x64 SP1 *super-tweaked* Panasonic 42" Widescreen Plasma 
KeyboardPowerCaseMouse
Logitech ELITE multimedia 750w Pc Power & Cooling Silencer (Red) Thermaltake Xaser XI Black w/t Window Logitech G5 2000 dpi gaming 
Mouse Pad
Flexiglow :D 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
E8500 @ 3.2gHz Gigabyte x48-DQ6 BFG 9800GTX+ (G92) OC Edition 2gb Patriot D9s + 2gb G.Skill Pi PC2-8500 1066Mhz 
Hard DriveOptical DriveOSMonitor
2.5 Tb of WD's SATAII (2 x 500 in RAID 0) Pioneer SATA 20x DVDRW Vista Ultimate x64 SP1 *super-tweaked* Panasonic 42" Widescreen Plasma 
KeyboardPowerCaseMouse
Logitech ELITE multimedia 750w Pc Power & Cooling Silencer (Red) Thermaltake Xaser XI Black w/t Window Logitech G5 2000 dpi gaming 
Mouse Pad
Flexiglow :D 
  hide details  
Reply
post #2 of 27
if you upgrade, get either the PC&C or check out some of the Corsair PSU's (i hear they are actually under rated on their wattage output. Corsair=rated<real output.
Router
(12 items)
 
  
Reply
Router
(12 items)
 
  
Reply
post #3 of 27
Thread Starter 
yerr i was thinking maybe corsair. Nice equation haha. Any other suggestions before buying?
    
CPUMotherboardGraphicsRAM
E8500 @ 3.2gHz Gigabyte x48-DQ6 BFG 9800GTX+ (G92) OC Edition 2gb Patriot D9s + 2gb G.Skill Pi PC2-8500 1066Mhz 
Hard DriveOptical DriveOSMonitor
2.5 Tb of WD's SATAII (2 x 500 in RAID 0) Pioneer SATA 20x DVDRW Vista Ultimate x64 SP1 *super-tweaked* Panasonic 42" Widescreen Plasma 
KeyboardPowerCaseMouse
Logitech ELITE multimedia 750w Pc Power & Cooling Silencer (Red) Thermaltake Xaser XI Black w/t Window Logitech G5 2000 dpi gaming 
Mouse Pad
Flexiglow :D 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
E8500 @ 3.2gHz Gigabyte x48-DQ6 BFG 9800GTX+ (G92) OC Edition 2gb Patriot D9s + 2gb G.Skill Pi PC2-8500 1066Mhz 
Hard DriveOptical DriveOSMonitor
2.5 Tb of WD's SATAII (2 x 500 in RAID 0) Pioneer SATA 20x DVDRW Vista Ultimate x64 SP1 *super-tweaked* Panasonic 42" Widescreen Plasma 
KeyboardPowerCaseMouse
Logitech ELITE multimedia 750w Pc Power & Cooling Silencer (Red) Thermaltake Xaser XI Black w/t Window Logitech G5 2000 dpi gaming 
Mouse Pad
Flexiglow :D 
  hide details  
Reply
post #4 of 27
OCZ is actually cheaper, but Corsair seems to have a better reputation...
    
CPUMotherboardGraphicsRAM
E8400 GIGABYTE GA-P35-DS3L eVGA 9800GT Stock Speeds GSkill 4GB (2x2GB) PC6400 
Hard DriveOptical DriveOSMonitor
Samsung F3 500GB Samsung 22X DVD Drive Windows 7 64-bit 22" Acer x223w 
KeyboardPowerCaseMouse
IBM Model M Model 1391401 Antec EarthWatts 500W Troglodytic Tech Terminal Razer Deathadder 
Mouse Pad
Steelseries Qck+ 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
E8400 GIGABYTE GA-P35-DS3L eVGA 9800GT Stock Speeds GSkill 4GB (2x2GB) PC6400 
Hard DriveOptical DriveOSMonitor
Samsung F3 500GB Samsung 22X DVD Drive Windows 7 64-bit 22" Acer x223w 
KeyboardPowerCaseMouse
IBM Model M Model 1391401 Antec EarthWatts 500W Troglodytic Tech Terminal Razer Deathadder 
Mouse Pad
Steelseries Qck+ 
  hide details  
Reply
post #5 of 27
Pc and power or silverstone and corsair are also really good.
    
CPUMotherboardGraphicsRAM
Q6600 @ 3Ghz GA-P35-DS3L Rev. 2.0 Powercooler 4870 8Gb GSkill 
Hard DriveOptical DriveOSMonitor
500Gb WD+640Gb WD Lite-on 20x Vista Home Premium 64x 1920x1200 24" +1400x1050 20" 
PowerCase
650 watt OP650 CM Stacker 830 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
Q6600 @ 3Ghz GA-P35-DS3L Rev. 2.0 Powercooler 4870 8Gb GSkill 
Hard DriveOptical DriveOSMonitor
500Gb WD+640Gb WD Lite-on 20x Vista Home Premium 64x 1920x1200 24" +1400x1050 20" 
PowerCase
650 watt OP650 CM Stacker 830 
  hide details  
Reply
post #6 of 27
Eh, I've decided to get the Corsair 650W, but you can get the 750W version, its only 30 more.
    
CPUMotherboardGraphicsRAM
E8400 GIGABYTE GA-P35-DS3L eVGA 9800GT Stock Speeds GSkill 4GB (2x2GB) PC6400 
Hard DriveOptical DriveOSMonitor
Samsung F3 500GB Samsung 22X DVD Drive Windows 7 64-bit 22" Acer x223w 
KeyboardPowerCaseMouse
IBM Model M Model 1391401 Antec EarthWatts 500W Troglodytic Tech Terminal Razer Deathadder 
Mouse Pad
Steelseries Qck+ 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
E8400 GIGABYTE GA-P35-DS3L eVGA 9800GT Stock Speeds GSkill 4GB (2x2GB) PC6400 
Hard DriveOptical DriveOSMonitor
Samsung F3 500GB Samsung 22X DVD Drive Windows 7 64-bit 22" Acer x223w 
KeyboardPowerCaseMouse
IBM Model M Model 1391401 Antec EarthWatts 500W Troglodytic Tech Terminal Razer Deathadder 
Mouse Pad
Steelseries Qck+ 
  hide details  
Reply
post #7 of 27
Thread Starter 
ok so i went with the Pc Power and Cooling Silencer 750w (red)

I was tossing between that and the turbo-cool 850w but its $100 more and from what I checked the specs and performance increase are too close to the silencer to have to pay an extra $100.

http://www.pcpower.com/power-supply/...crossfire.html
    
CPUMotherboardGraphicsRAM
E8500 @ 3.2gHz Gigabyte x48-DQ6 BFG 9800GTX+ (G92) OC Edition 2gb Patriot D9s + 2gb G.Skill Pi PC2-8500 1066Mhz 
Hard DriveOptical DriveOSMonitor
2.5 Tb of WD's SATAII (2 x 500 in RAID 0) Pioneer SATA 20x DVDRW Vista Ultimate x64 SP1 *super-tweaked* Panasonic 42" Widescreen Plasma 
KeyboardPowerCaseMouse
Logitech ELITE multimedia 750w Pc Power & Cooling Silencer (Red) Thermaltake Xaser XI Black w/t Window Logitech G5 2000 dpi gaming 
Mouse Pad
Flexiglow :D 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
E8500 @ 3.2gHz Gigabyte x48-DQ6 BFG 9800GTX+ (G92) OC Edition 2gb Patriot D9s + 2gb G.Skill Pi PC2-8500 1066Mhz 
Hard DriveOptical DriveOSMonitor
2.5 Tb of WD's SATAII (2 x 500 in RAID 0) Pioneer SATA 20x DVDRW Vista Ultimate x64 SP1 *super-tweaked* Panasonic 42" Widescreen Plasma 
KeyboardPowerCaseMouse
Logitech ELITE multimedia 750w Pc Power & Cooling Silencer (Red) Thermaltake Xaser XI Black w/t Window Logitech G5 2000 dpi gaming 
Mouse Pad
Flexiglow :D 
  hide details  
Reply
post #8 of 27
wish I had been able to donate to this thread earlier, I <3 the Silverstone OP 6/750s Solid, and durable, also modular for cable management simplicity. But the PC P & C is still a great option none the less.
SR2 PWNS J00
(22 items)
 
SL4V3
(16 items)
 
 
CPUMotherboardGraphicsRAM
2x intel Xeon X5650 @ 4Ghz Evga SR-2 SLi Evga GTX480s 18GB G.SKill Pi 1600 DDR3 
Hard DriveHard DriveHard DriveOptical Drive
60GB Vertex 3 2TB Western Digital Black 2TB External HDD (USB 2) 22x Sata Bluray/DVD Multi Drive 
CoolingCoolingCoolingCooling
Hardware Labs GTX 360 Radiator EK Supreme HF Copper Danger Den GTX480 Waterblock All Copper Natemandoo SR-2 Solid Copper Waterblock 
CoolingCoolingOSMonitor
Iwaki RD-30 D5 with DCThermo Top Windows 7 Ultimate 3x 24" LG LCDs (16:9) 
KeyboardPowerCaseMouse
Ducky Shine MX-Cherry Black Mechanical Keyboard... 1500W Silver stone Strider Mountain Mods Extended Ascension Horizon Razer Mamba 2012 (wired) 
Mouse PadAudio
Razer XactMat Asus Xonar SXT 
CPUMotherboardGraphicsRAM
intel Q6600 ASUS P5K-E Wifi AMD HD Radeon 6990 4GBs G.skill HZs 
Hard DriveOptical DriveCoolingOS
OCZ vertex 2 LG 22x combo drive Cooler Master hyper 212+ Windows 7 Ultimate x64 
MonitorMonitorKeyboardPower
LG FLATRON L1933TR LG FLATRON L1933TR Logitech G15 rev. 1 Silverstone Decathlon 750W modular PSU 
CaseMouseMouse PadAudio
Thermaltake Armor with 250mm side fan Logitech 2000dpi USB mouse Steel series QcK+ Auzentech X-Fi prelude 
  hide details  
Reply
SR2 PWNS J00
(22 items)
 
SL4V3
(16 items)
 
 
CPUMotherboardGraphicsRAM
2x intel Xeon X5650 @ 4Ghz Evga SR-2 SLi Evga GTX480s 18GB G.SKill Pi 1600 DDR3 
Hard DriveHard DriveHard DriveOptical Drive
60GB Vertex 3 2TB Western Digital Black 2TB External HDD (USB 2) 22x Sata Bluray/DVD Multi Drive 
CoolingCoolingCoolingCooling
Hardware Labs GTX 360 Radiator EK Supreme HF Copper Danger Den GTX480 Waterblock All Copper Natemandoo SR-2 Solid Copper Waterblock 
CoolingCoolingOSMonitor
Iwaki RD-30 D5 with DCThermo Top Windows 7 Ultimate 3x 24" LG LCDs (16:9) 
KeyboardPowerCaseMouse
Ducky Shine MX-Cherry Black Mechanical Keyboard... 1500W Silver stone Strider Mountain Mods Extended Ascension Horizon Razer Mamba 2012 (wired) 
Mouse PadAudio
Razer XactMat Asus Xonar SXT 
CPUMotherboardGraphicsRAM
intel Q6600 ASUS P5K-E Wifi AMD HD Radeon 6990 4GBs G.skill HZs 
Hard DriveOptical DriveCoolingOS
OCZ vertex 2 LG 22x combo drive Cooler Master hyper 212+ Windows 7 Ultimate x64 
MonitorMonitorKeyboardPower
LG FLATRON L1933TR LG FLATRON L1933TR Logitech G15 rev. 1 Silverstone Decathlon 750W modular PSU 
CaseMouseMouse PadAudio
Thermaltake Armor with 250mm side fan Logitech 2000dpi USB mouse Steel series QcK+ Auzentech X-Fi prelude 
  hide details  
Reply
post #9 of 27
Thread Starter 
actually modular is bad. The truth behind power supplies.

I know its abit Pc Power and Cooling Bias but enjoy:



1. DOES A POWER SUPPLY UPGRADE MEAN A HIGHER ELECTRIC BILL?

This is the biggest myth of all. First, it's important to understand that a power supply only delivers the power that's needed by the system, nothing more. If your PC currently has a 400W supply and the system needs 350W, it will still need and use only 350W - if the only change is upgrading to a 500W power supply (the upgrade makes sense since there are many advantages to running a power supply at a lower percentage of its rated capacity). Whether the electric bill goes up or down is solely determined by the efficiency of the new power supply. Greater efficiency means a lower electric bill because more of the AC power is converted into DC for the computer, rather than wasted as heat. The savings can really add up over time. For example, when the money saved in electricity over the course of its 3-year warranty is taken into account, the purchase price of the efficient Silencer 750 is less than $0.00. Here's the math:
Model Efficiency @ 550W Input Power @ 550W
Silencer 750 83% 662W
Antec True Power 550 73.8% 745W

For the same output power, the Silencer 750 uses 83W less input power.

3-year savings = .083KW x $0.10/KWH x 24 x 365 x 3 = $218.12

2. DON'T BE MISLED BY EXAGGERATED WATTAGE CLAIMS

To properly compare power supplies, wattage claims must state the maximum ambient temperature for continuous, full-load operation. Unfortunately for the consumer, this information is usually withheld, opening the door for manufacturers to exaggerate their wattage claims. They do so by assuming an unrealistic ambient temp of only 25°C (77°F), even though the actual internal power supply temp is at least 40°C (104°F). Since the proper full-load rating is 15°C higher for home use and 25°C higher for industrial use, these power supplies produce 33%-50% less power than their advertised ratings. See the derating chart on the right.

Elevated Temperature Testing
wattage comparison
Turbo-Cool 510 spec: full load @ 50°C.
"500W" Home PSU spec: full load @ 25°C, no load @ 70°C.

3. DON'T LOSE POWER WITH MODULAR PLUGS

Due to their look, convenience, and cost savings for manufacturers, modular plugs have become a popular power supply feature. Unfortunately, there has been little or no discussion of the impact of this feature on overall performance and reliability. The fact is, modular plugs limit power by adding to electrical resistance. The voltage drop can be as much as would occur in 2 feet of standard wire. Worse yet, modular plugs utilize delicate pins that can easily loosen, corrode, and burn, creating the potential for a major system failure. That's why professional system builders specify uninterrupted wire!

4. MARKETING MYTH vs. WARRANTY REALITY

As with all consumer products, the fine print in the warranty will often contradict a manufacturer's marketing hype. Unfortunately, this is especially true for computer power supplies. Take for example this quote direct from the product box of a leading manufacturer: "we've earned a stellar reputation for producing stable, reliable, industrial-grade PC power supplies". Now compare that statement to what is specifically excluded in the company's "legendary 3-year warranty":

Sample of What is NOT covered -

a. commercial and industrial use
b. wear and tear from moving parts
c. that the product will meet your requirements.

In conclusion, don't be mislead by marketing hype, avoid superficial gimmicks, and read the warranty carefully before purchasing your next power supply.

5. AN SLI CERTIFIED POWER SUPPLY WILL ALWAYS POWER HIGH-END GRAPHICS CARDS?

We went through three power supplies before we found one that consistently worked with these high-end graphics cards and an FX-60. We initially started with a Silverstone 600W SLI certified power supply, but running some games resulted in the system powering down under full load. We next moved onto a higher rated Thermaltake PurePower SLI certified 680W unit. But while most games ran most of the time, the system would still occasionally shut down. Finally, we ended up using PC Power and Cooling's massive TurboCool 850 SSI. This just goes to show that if you really want to build something that pushes the bleeding edge, make sure you have the right power supply.

ExtremeTech Review Feb 12, 2006

6. SHOULD AN ATX POWER SUPPLY BE COOLED WITH A 120MM FAN?

Most low-noise ATX power supplies today utilize a top-mounted 120mm fan rather than a rear-mounted 80mm fan. The 120's favorable reputation is based on the fact that under low to medium load conditions, the 120mm fan provides sufficient cooling at low RPM and low RPM fans are generally very quiet.

However, problems occur with this design when the load exceeds 50%-60%. Because the 120mm fan consumes about 1.5" of vertical space inside the PSU, heat sinks, capacitors, and other components are about 30% smaller in height compared to a PSU with a rear-mounted fan. The smaller parts can handle less current, so the maximum power available with the 120mm design is limited. And, because the heat sinks have less surface area, more air flow is needed with this design to keep the thermal situation under control. With 80%-100% load, the 120's fan speed can double and the noise level can jump by up to 20dB.

In conclusion, for systems that require more than 50% of the power supply's capacity, a well-engineered PSU with a rear-mounted 80mm fan will provide superior performance and reliability (due to larger components) at a noise level comparable to a PSU equipped with a 120mm fan.

7. ARE TWO POWER SUPPLY FANS BETTER THAN ONE?

No. A power supply with two fans doesn't exhaust any more air from the case than a power supply with one. That's because due to space limitations, only one fan can be used for exhaust, while the other is limited to spot cooling. Possible explanations for a 2-fan PSU include: thermal engineering problems; an attempt to exaggerate the wattage rating by spot cooling the transformer; or an attempt by the marketing department to create a new gimmick.

8. ARE MULTIPLE 12-VOLT RAILS BETTER THAN A SINGLE 12-VOLT RAIL?

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
    
CPUMotherboardGraphicsRAM
E8500 @ 3.2gHz Gigabyte x48-DQ6 BFG 9800GTX+ (G92) OC Edition 2gb Patriot D9s + 2gb G.Skill Pi PC2-8500 1066Mhz 
Hard DriveOptical DriveOSMonitor
2.5 Tb of WD's SATAII (2 x 500 in RAID 0) Pioneer SATA 20x DVDRW Vista Ultimate x64 SP1 *super-tweaked* Panasonic 42" Widescreen Plasma 
KeyboardPowerCaseMouse
Logitech ELITE multimedia 750w Pc Power & Cooling Silencer (Red) Thermaltake Xaser XI Black w/t Window Logitech G5 2000 dpi gaming 
Mouse Pad
Flexiglow :D 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
E8500 @ 3.2gHz Gigabyte x48-DQ6 BFG 9800GTX+ (G92) OC Edition 2gb Patriot D9s + 2gb G.Skill Pi PC2-8500 1066Mhz 
Hard DriveOptical DriveOSMonitor
2.5 Tb of WD's SATAII (2 x 500 in RAID 0) Pioneer SATA 20x DVDRW Vista Ultimate x64 SP1 *super-tweaked* Panasonic 42" Widescreen Plasma 
KeyboardPowerCaseMouse
Logitech ELITE multimedia 750w Pc Power & Cooling Silencer (Red) Thermaltake Xaser XI Black w/t Window Logitech G5 2000 dpi gaming 
Mouse Pad
Flexiglow :D 
  hide details  
Reply
post #10 of 27
That was just PC P & C trying to promote their power supplies over modular. There is nothing wrong with modular.
First Build
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Q6600 @ 3.2Ghz DFI LP DK P35 EVGA 8800GTS 512MB G.SKILL 4GB DDR2 1000 
Hard DriveOptical DriveOSMonitor
WD 640GB Black Samsung DVD-RW SATA Windows 7 Ultimate x64 Samsung 245BW 
KeyboardPowerCaseMouse
Logitech G15 Corsair 620HX Antec 1200 Logitech G9 
Mouse Pad
Razer eXactMat 
  hide details  
Reply
First Build
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Q6600 @ 3.2Ghz DFI LP DK P35 EVGA 8800GTS 512MB G.SKILL 4GB DDR2 1000 
Hard DriveOptical DriveOSMonitor
WD 640GB Black Samsung DVD-RW SATA Windows 7 Ultimate x64 Samsung 245BW 
KeyboardPowerCaseMouse
Logitech G15 Corsair 620HX Antec 1200 Logitech G9 
Mouse Pad
Razer eXactMat 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Power Supplies
Overclock.net › Forums › Components › Power Supplies › The Ongoing Question - A Power Supply...