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Perhaps my system has too much current draw even for the OCZ Powerstream 600W?

post #1 of 3
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I have a LOT of stuff in my new computer, and as I fix it over break, I really don't want to overdo it.... hehe. I'm adding in some stuff

Here is what all I have in there, or what I want to have in there anyway... The things that I'm contemplating NOT putting in there are the WD Raptors.


Here's the list!:
Overclocked CPU
Overclocked GPU
Overclocked RAM
Mobo Power Connectors (Molex and Floppy...duh...)
Audigy2 ZS and ATI HDTV Wonder PCI cards
3x Medium speed 80mm case fans
1x High-speed 80mm case fan
2x 12in. Cold Cathodes
2x 4in. Cold Cathodes
2x 40mm fans for RAM cooling
2x 60mm fans to move hot air away from vid card.
1x 300GB Maxtor Diamondmax10
2x 120GB Maxtor Diamondmax9
2x 74GB Western Digital Raptors in RAID0
1x Chill Control board for Vapochill LS
a few small LED lights

O_o.... I'm kinda worried all of those HDs and fans will suck the life out of my PSU. Am I underratings it? That is a LOT of HDs lol.... Anyway, if anyone can kind of give me the okay then that would be nice

If someone (who is informed) thinks it might exceed the power it can supply, then I can take out the raptors and sell them. I might end up only using one anyway. The only reason I won't sell them both is because I want to put games and Photoshop's swap file, etc. on the raptors.

EDIT: I added it up on here: http://www.jscustompcs.com/power_sup...or.php?cmd=AMD
They didn't have enough checkboxes, but I tried to account for the 5th HD and extra fans and things elseware. I even called my vid card an 800XT and my CPU an FX to account for OCing. Even so, the PSU requirements didn't top 450W. If anyone thinks my stuff will be a problem just let me know but I'm feeling pretty good about it at this point
Murphy's Law
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Phenom X4 9850 BE Gigabyte GA-MA790GP-DS4H HIS Radeon HD 4850 512MB IceQ4 Edition 2x2GB OCZ Reaper DDR2 1066Mhz 
Hard DriveOptical DriveOSMonitor
2x1TB Seagates in RAID 1 Sony DRU-530A DVD-RW XP Pro SP3 Samsung 957MB 
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Saitek Eclipse Antec NeoPower Blue 650W Lian-Li PC-65B Logitech MX518 v2.0 
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Murphy's Law
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CPUMotherboardGraphicsRAM
Phenom X4 9850 BE Gigabyte GA-MA790GP-DS4H HIS Radeon HD 4850 512MB IceQ4 Edition 2x2GB OCZ Reaper DDR2 1066Mhz 
Hard DriveOptical DriveOSMonitor
2x1TB Seagates in RAID 1 Sony DRU-530A DVD-RW XP Pro SP3 Samsung 957MB 
KeyboardPowerCaseMouse
Saitek Eclipse Antec NeoPower Blue 650W Lian-Li PC-65B Logitech MX518 v2.0 
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Custom Bansheepad 
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post #2 of 3
The calculator being used is not particularly accurate and in fact none of the ones available online actually are. Given the specification outlined above PLUS adding in the missing items not listed, it is more likely to be in and around the 550W mark - at 80% operation and 612W 100%.

The key element that all these calculators miss is the actual loading of each rail ... while they may discuss its importance and maybe allow for it in their calculations, they do not disclose it.

The +12V rails are the key ones for any ATX12V2.x PSU and their max 240VA supply maximum = 20A (which has come about primarily due to safety reasons, on the account it is less likely to be 'zapped'), and as there are no standards as to how to report the rail ratings, most PSU manufacturers show peak, rather than sustained. The 12v rails will eventually go back to one overall supply with each having it's own gate to limit it at 240VA, in any case most are unable to deliver peak specs. Originally the +12V2 rail was to provide for the +12v 4/8-pin supply but this seems to be running all other devices rather than its design intent.

To tell which rail a +12v is on, look at the yellow cables, the ones to the mainboard and likely the 4/8-pin will have a blue or black stripe, while the other yellow wires on the molex will have none or visa versa.

The PCIe additonal supply rails will be another factor as, again, no stabdards were outlined for which these rails came off, rather nVidia created the requirement and then performed some testing, so they could be off either, in some cases PSUs have a separate rail for these GPU supply.

The OCZ600 is a good PSU, and only recently has it shown up under stress when running SLi operations, even though some have the SLi Ready sticker.

Below is a chart which has tried to break down which rails are being loaded.. it is about 85% accurate based upon information to hand and a few checks around the traps.

The two key items to note are the GPU and CPU.

GPU: Is rated at 93W stock this may be all across the +12v rail or some on the 3.3v but did not find clear specifications.

CPU: The rating is 89W for a 1.35 or 1.4v chip and this means that the CPU will draw around 50-55A, now this I understand that this is regulated from only the +12v rail and would = approx. 7.5A

What has not been accounted for is when you OC and assuming a 3.2GHz OC at 1.75v this would be approx 218W/1.35 or 202W/1.4. This detail would need to be looked at more for validation.

Fans: It is also assumed that NO fans, other than the Chipset, are connected to the MB as they will draw from the +12V main rail.




That aside, you should have no issues running your setup, unless you change to SLi operation.
OS X 10.6.4
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OS X 10.6.4
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Mac Mini Mac Mini Server 2011 Intel HD3000 8Gb 
Hard DriveOptical DriveOSMonitor
2 Internal drives None OS X / W7 x64 Dell U3011 
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Apple Wireless & Wired Internal Mini brick Magic 
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post #3 of 3
Is there another website that has more options to check power needage.
Doesn't suck
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XPS L702X
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i7 4770s 3.1Ghz Gigabyte B85M-D3V RX480 8gb 16GB 
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128GB SanDisk SDSSDHP128G Matshita DVD-Ram Stock Windows 10 Pro 
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G19 APEVIA ATX-AP900W Cooler Master Microsoft Optical Wheel Mouse 
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Intel Core i7-2670QM GT555M 8GB  2 x Seagate 7200RPM 500GB 
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Doesn't suck
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XPS L702X
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i7 4770s 3.1Ghz Gigabyte B85M-D3V RX480 8gb 16GB 
Hard DriveOptical DriveCoolingOS
128GB SanDisk SDSSDHP128G Matshita DVD-Ram Stock Windows 10 Pro 
KeyboardPowerCaseMouse
G19 APEVIA ATX-AP900W Cooler Master Microsoft Optical Wheel Mouse 
CPUGraphicsRAMHard Drive
Intel Core i7-2670QM GT555M 8GB  2 x Seagate 7200RPM 500GB 
Optical DriveOSMonitorKeyboard
BluRay combo drive Windows 7 Premium 17" Laptop + 24" 1920x1080 Dell Backlit laptop keyboard 
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XPS L702X 
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