4870x2 recommends 650w psu. i have a 600

Hybrid_theory · Sep 1, 2008

I'm probably going to purchase a 4870x2 within the next month. Right now I have an OCZ 600watt psu. I know ATI recommends 650watts for this card. I can't see the 50 watts making an issue, but can never be sure.

<--System specs under my name on the post

newconroer · Sep 1, 2008

It's a bit difficult to say. Often manufacturers's PSU requirements for graphics cards is higher than is actually needed, or rather it's rated from the wall. Though sometimes, they're right on.

I don't believe you need 650 watts to run a single X2, and typical PC components. Most reviews show usage of less than 500 for a full system under load with the X2.

The main thing to watch out for would be the amperage requirement which is somewhere in the 40's range; someone else may want to confirm this for you.

Also does your model have at least one PCI-E 8 cable? Some of those 600W from OCZ had four PCI-E 6; and while others have gotten away with using an adapter, I don't recommend it.

Fastmix · Sep 1, 2008

And most decent power supplies are actually rated less from the manufacturer.

Fow example a 600w is actually a 700w..so my suggestion is to try it first and see how that goes.

Hybrid_theory · Sep 1, 2008

newconroer said:
It's a bit difficult to say. Often manufacturers's PSU requirements for graphics cards is higher than is actually needed, or rather it's rated from the wall. Though sometimes, they're right on.

I don't believe you need 650 watts to run a single X2, and typical PC components. Most reviews show usage of less than 500 for a full system under load with the X2.

The main thing to watch out for would be the amperage requirement which is somewhere in the 40's range; someone else may want to confirm this for you.

Also does your model have at least one PCI-E 8 cable? Some of those 600W from OCZ had four PCI-E 6; and while others have gotten away with using an adapter, I don't recommend it.

no 2 PCI-E 6. I didn't know they're was 8 models now. I've seen a lot of the GEForce cards requiring 2 PCIE 6.

SonDa5 · Sep 2, 2008

Fastmix said:
And most decent power supplies are actually rated less from the manufacturer.

Fow example a 600w is actually a 700w..so my suggestion is to try it first and see how that goes.

Depends on the maker. Some have been tested and found to be beolow the marked PSU rating.

I'd get at least 650W if that is what ATI recommends.

Do your homework and be sure you get a decent PSU that will provide the required power.

Polarman · Sep 2, 2008

I changed my Antec trio 650 for a Silencer 750 just to be safe. I was planning for CF in mind.

lemonadesoda · Sep 2, 2008

You are probably OK with your existing PSU, since you have only ONE HDD and no other PCI/PCIe devices except soundcard. You are also not OC your CPU. (Guessing from your 3dmark06 scores).

IF you are in a habit of using both your DVD burners WHILE playing 3D games AND overclocking your CPU, then YES, a new PSU is needed.

Hayder_Master · Sep 2, 2008

i don't think you must change your psu , if you think to overclock go to change it with 700w

eidairaman1 · Sep 2, 2008

that is just their recommendation to reduce the amt of problems you may encounter, its just a warning for all users is all. It also depends on whatelse you have in your system.

robal · Sep 2, 2008

This recommendation leaves a thick safety margin.

What is hard for crappy, passive PFC 650 W PSU, can be achieved with good 500 W one.

Hayder_Master · Sep 2, 2008

check this link

http://www.extreme.outervision.com/index.jsp

boogah · Sep 2, 2008

4870x2 actually require an 8-pin and a 6-pin. If you stick a 6-pin in the 8-pin it will complain and not even let you boot.

BrooksyX · Sep 2, 2008

I would think you would be fine with the power supply you have, decent brand and almost enough watts as it. I have no trouble running my crossfire setup in my system specs on my 550 watt psu but then again its raited at a combined 59a on the 12v rails.

System Name	home brew
Processor	Intel Corei7 3770K OC @ 4.5Ghz
Motherboard	ASUS P8Z77-V
Cooling	Corsair H100
Memory	16GB DDR3 1600 GSKILL
Video Card(s)	Powercolor Radeon 7970, MSI Radeon 7970
Storage	Mushkin Chronos Deluxe 240gb. 2 TB Hdd.
Display(s)	3x24inch Dell Ultra IPS
Case	CM storm trooper
Power Supply	Antec Quattro OC ed. 1200w
Software	Windows 7 Business x64
Benchmark Scores	vantage: P43089

System Name	Widow
Processor	Ryzen 7600x
Motherboard	AsRock B650 HDVM.2
Cooling	CPU : Corsair Hydro XC7 }{ GPU: EK FC 1080 via Magicool 360 III PRO > Photon 170 (D5)
Memory	32GB Gskill Flare X5
Video Card(s)	GTX 1080 TI
Storage	Samsung 9series NVM 2TB and Rust
Display(s)	Predator X34P/Tempest X270OC @ 120hz / LG W3000h
Case	Fractal Define S [Antec Skeleton hanging in hall of fame]
Audio Device(s)	Asus Xonar Xense with AKG K612 cans on Monacor SA-100
Power Supply	Seasonic X-850
Mouse	Razer Naga 2014
Software	Windows 11 Pro
Benchmark Scores	FFXIV ARR Benchmark 12,883 on i7 2600k 15,098 on AM5 7600x

System Name	home brew
Processor	Intel Corei7 3770K OC @ 4.5Ghz
Motherboard	ASUS P8Z77-V
Cooling	Corsair H100
Memory	16GB DDR3 1600 GSKILL
Video Card(s)	Powercolor Radeon 7970, MSI Radeon 7970
Storage	Mushkin Chronos Deluxe 240gb. 2 TB Hdd.
Display(s)	3x24inch Dell Ultra IPS
Case	CM storm trooper
Power Supply	Antec Quattro OC ed. 1200w
Software	Windows 7 Business x64
Benchmark Scores	vantage: P43089

System Name	Black Killing Machine
Processor	Delidded NO IHS mount Intel i7-4770k
Motherboard	Gigabyte Z87X-OC
Cooling	Swiftech DIR655 pump, Watercool HEATKILLER® GPU-X³ 79X0 Ni-Bl gpu, DT SNIPER CPU block, UT60 420 RAD
Memory	Gskill Trident 2400mhz CL9 Samsung IC9
Video Card(s)	SAPPHIRE HD7950 OC 950mhz Edition, VaporX HD7950
Storage	2xM4 Crucial 64GB RAID 0, 1 OCZ AGILILITY 3 60GB, WDCB 500GB x2RAID0, WD Green, Hitachi 1TB
Display(s)	Samsung SyncMaster 226BW and 24" 120hz BenQ gamer
Case	SilverStone Raven rv-02
Audio Device(s)	Audio Technica ATH-AD900 headphones, Topping D2 DAC/Headphone AMP
Power Supply	Seasonic Platinum 860
Software	Windows 7 Pro 64bit
Benchmark Scores	http://hwbot.org/user/sonda5/ Delidding is magic. http://valid.canardpc.com/2878462

System Name	Polar's Dragon
Processor	AMD Phenom II 975BE
Motherboard	MSI 890FXA-GD65 (Bios 18.7)
Cooling	Zalman CNPS 9700 Led
Memory	Gskill 8GB DDR3-1333 (8,8,8,21)
Video Card(s)	MSI HD6870 Hawk
Storage	WD Raptor 250 - WD RE4 500GB
Display(s)	Samsung T240 (1920 X1200)
Case	Silverstone Raven 2
Audio Device(s)	Realtek ALC892
Power Supply	PC Power&Cooling Silencer 750 (Red)
Software	Windows 7 Home Premium 64Bit + SP1

4870x2 recommends 650w psu. i have a 600

Hybrid_theory

newconroer

Fastmix

New Member

Hybrid_theory

SonDa5

Polarman

New Member

lemonadesoda

Hayder_Master

eidairaman1

The Exiled Airman

robal

Hayder_Master

boogah

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BrooksyX

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Software	Windows Server 2003 R2 as a Workstation now migrated to W10 with regrets.

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Processor	Core i7 3930k run at 4.4ghz
Motherboard	Asus Rampage IV extreme
Cooling	Corsair H100i
Memory	4x4G kingston hyperx beast 2400mhz
Video Card(s)	2X EVGA GTX680
Storage	2X Crusial M4 256g raid0, 1TbWD g, 2x500 WD B
Display(s)	Samsung 27' 1080P LED 3D monitior 2ms
Case	CoolerMaster Chosmos II
Audio Device(s)	Creative sound blaster X-FI Titanum champion,Creative speakers 7.1 T7900
Power Supply	Corsair 1200i, Logitch G500 Mouse, headset Corsair vengeance 1500
Software	Win7 64bit Ultimate
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Processor	AMD FX 8350@ 5.0GHz
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Memory	16 GB Gskill Ripjaws X 2133 (2400 OC, 10-10-12-20-20, 1T, 1.65V)
Video Card(s)	AMD Radeon 290 Sapphire Vapor-X
Storage	Samsung 840 Pro 256GB, WD Velociraptor 1TB
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Power Supply	Corsair HX750
Software	Windows 10 x64

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