 Unsure about a new PSU |
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 Nov 4 2009, 06:41 PM
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#1
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 Group: Members Posts: 1 Joined: 4-November 09 Member No.: 244,099 Club SLI Member: No  |
My current setup is a XFX 750i with core 2 duo, (2.5ghz) xfx 8600gt 512mb and a 600W PSU That only has a 4 pin ATX power connection. Now my question is do i need to get a new PSU in order to hook up dual 8600's since they do not have any power connectors on the gfx card them selves. Would it be better buying a PSU with a 8 pin atx 12v power connector? or is the current 600w psu adiquate enough to cope with the stress of two 8600's?
The PSU i have atm is a 'Super silent 600-jsp' - EZcool |
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Nov 4 2009, 08:31 PM
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#2
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 Group: Members Posts: 2,237 Joined: 1-August 07 From: Ottawa, Ontario, Canada Member No.: 208,918 Club SLI Member: Yes Org.: Federal Bureau of Breast Inspectors |
QUOTE (Ralphio1337 @ Nov 4 2009, 01:41 PM)  My current setup is a XFX 750i with core 2 duo, (2.5ghz) xfx 8600gt 512mb and a 600W PSU That only has a 4 pin ATX power connection. Now my question is do i need to get a new PSU in order to hook up dual 8600's since they do not have any power connectors on the gfx card them selves. Would it be better buying a PSU with a 8 pin atx 12v power connector? or is the current 600w psu adiquate enough to cope with the stress of two 8600's? The PSU i have atm is a 'Super silent 600-jsp' - EZcool I think you are very uninformed sir. The 4 and 8 pin power connectors are the processors. They have no effect on graphics cards. Low level GPU's get their power from the slot. High level gpu's get their power from a pci-e 6 or 8 pin connection. -------------------- |
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Nov 5 2009, 12:22 AM
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#3
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 Group: Members Posts: 2,516 Joined: 12-December 07 From: PA Member No.: 218,233 Club SLI Member: Yes |
+1 but, your machine will run without the extra 4 pin connected. It seems to be just supplemental power for the CPU maybe for stability? I know for sure when I started my rig I didn't run the 4pin until I figured it out.
-------------------- ~*-=Ryme=-*~
Games I'm playing:Borderlands Clicky -->Ryme Reviews My Rig Q6600 3.6ghz quad core G0 Thermalright Ultra 120 eXtreme EVGA 780i SLI mobo 4GiG 2x2 OCZ ReaperX 800mhz 4-4-3-15-2T TRI-SLI EVGA GTX260 Core 216 Super Clocks 250gig - 1TB SATA II 850W SilverStone Decathlon Windows 7 Pro 64bit 3Dmark Vantage Record : 23348 |
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Nov 5 2009, 12:34 AM
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#4
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Group: Members Posts: 2,237 Joined: 1-August 07 From: Ottawa, Ontario, Canada Member No.: 208,918 Club SLI Member: Yes Org.: Federal Bureau of Breast Inspectors |
QUOTE (420Ryme @ Nov 4 2009, 07:22 PM) +1 but, your machine will run without the extra 4 pin connected. It seems to be just supplemental power for the CPU maybe for stability? I know for sure when I started my rig I didn't run the 4pin until I figured it out. The 8 pin is for quad cores, the 4 pin is for duals or something like that. I dunno, i just use the 8 and have never had a problem , lol. -------------------- |
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Nov 10 2009, 01:31 AM
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#5
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Group: Members Posts: 157 Joined: 6-December 08 Member No.: 129,217 Club SLI Member: No |
Not having that motherboard's manual infront of me, I cannot quote as such... but with mine, the 4 pin is a must - stipulated you must connect a 4 pin ATX power lead to the board... It then goes on to say that we recomend using an 8 pin ATX lead.
Basically, it will be there for a reason (normally to provide the CPU with power / additional power). Some motherboards can use a 4 pin in the 8 pin slot and function correctly, others can get away without using even a 4 pin... But, really it is there for a reason But, that is a total tangent to the original question.... If the graphics cards have no additional power connectors, then they do not require any additional power. The ATX is designed to provide power to the CPU. Some motherboards (like mine) have a molex (or similar) power connection to provide additional power to the PCIe slots... but, i see no such connector on your motherboard. So, in that respect you should be fine. -------------------- Me thinks I should have saved my Sig before the merge....
I knew I hadn't Imagined it... http://forums.nvidia.com/index.php?showtopic=21801 The views / opinions posted come from logic... however the logic link to my typing fingures suffers from a poor connection. Bad spelling and anything deemed as an insult / dig towards anyone is non intentional... unless stated ;) Just brilliant QUOTE "Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning." |
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Nov 10 2009, 02:34 AM
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#6
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 Group: Members Posts: 1,062 Joined: 26-September 09 Member No.: 194,527 Club SLI Member: Yes Org.: Computer Enthusiast |
8600GT power requirement:
Minimum of a 350 Watt power supply. (Minimum recommended power supply with +12 Volt current rating of 22 Amp Amps.) Minimum 400 Watt for SLI mode system. (Minimum recommended power supply with +12 Volt current rating of 24 Amp Amps.) I do know if the new drivers will not support the 8600 in SLI.... Unlees you guys are also talking about the 20-pin & 24-pin MB connection. the PSU will normally have a 20+4-pin the 4 can be removed, has nothing to do with the CPU 4/8-pin though.. I don't think I would use a 4-Pin in place of an 8-Pin.. If the MOBO has 8-Pin, then use 8-Pin, vise versa... -------------------- My Systems and Specifications:
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Nov 13 2009, 08:09 PM
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#7
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 Group: Members Posts: 1,665 Joined: 25-September 09 Member No.: 194,420 Club SLI Member: Yes Org.: Advanced PC |
+1
The 4/8 pin connector is used to insure that the CPU has ample power for stability , and should always be used if the motherboard supports it , whether a 4 / 8 pin connector ... depending upon the mothernoard . -------------------- Intel Core i7 960 Processor - 3.20GHz @ 3.20GHz - D0 Stepping ( Break in )
Prolimatech Megahalems Socket 1366 Heatsink EVGA X58 Classified Motherboard 6 GB Tri Channel Corsair Dominator PC3 12800 Memory : 8-8-8-24 EVGA GTX 295 CO-OP FTW 1792 MB , Core @ 684 MHz , Memory @ 2160 MHz , Shader @ 1476 MHz 4 x WD 80 GB Velociraptor 10 K HDD's Raid 0 WD Extreme Lighted 250 GB HDD ( Back up and storage ) Creative X-Fi Fatal1ty Titanium Pro - Toslink Optical Logitech Z5500 505 Watt Speakers - DTS Digital Surround Sound Coolermaster Cosmos CSX Wraith # 41 / 300 : HDD Cooling Mod , Case Fan Upgrade NZXT Sentry LX High Fan Controller - ACC-NT-SENTRY-LX Coolermaster UCP 1100 Watt Power Supply ; 88% Efficiency , 1320 Watt Peak Windows 7 Ultimate Signature Edition 64 Bit ( Steve Ballmer ) |
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