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post #1 of 10
Thread Starter 
ok i need sum help. just upgraded my rig to gx2`s and thought my 1100watt tagen would be ok. its not tho. doesnt have 8 pin, only 4x6pin and everyone is saying steer clear of adapters. MHILL (who you`ll all know and love) has the silverstone decathelon 850watt. it has all the right connectors, but i didnt think 850 would be ok for 2 x gx2`s. sumone has said its the amps that are important, not the watt. could someone please explain this to me as im a little confuced right now. i dont wanna spend £270 on the 1200 watt decathelon if 850 is going to be fine
    
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post #2 of 10
The "amps" are in reference to the +12v rail(s) and what they are rated at.
For example, my DA750 has 60a on the+12v.
That and the PS "Peak Efficiency" are good indicators of the units capability... 80+ is great.
    
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post #3 of 10
if your in doubt just get this lol http://www.clubit.com/product_detail...emno=CA5300580

on a serious side, the Silverstone PSU's are very good and deliver, 850W should be good and like you say, if other users are using them then your probably safe although i think mark is having a few problems in Crysis with SLi enabled, if i was you, i would play it safe and get the 1kW Silverstone model, better more than not enough i always say
    
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post #4 of 10
Thread Starter 
Quote:
Originally Posted by Armadi110 View Post
if your in doubt just get this lol http://www.clubit.com/product_detail...emno=CA5300580

on a serious side, the Silverstone PSU's are very good and deliver, 850W should be good and like you say, if other users are using them then your probably safe although i think mark is having a few problems in Crysis with SLi enabled, if i was you, i would play it safe and get the 1kW Silverstone model, better more than not enough i always say
this one?

http://www.scan.co.uk/Products/Produ...oductID=537565

i dont get these 2 bits,

Class-leading single +12V rail with 80A ( 88A peak) (is 80A good????)

1000W continuous power output rated up to 50¢XC (50cXC??? whats that??)
    
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post #5 of 10
ok, 80A is VERY good, being as those cards rarely pull more than 30A under load, so it gives you loads of power spare for other things like drives

I think the output power is rated like that so it tells you that it will give you 1kW constant under 50'C, drops after that im guessing but you wont get this beast too hot with your load

EDIT: a small bit of advice given to me by a good technician, always invest in a good PSU, it is the cause to 60% of PC problems and can damage them easily if not a quality item
    
CPUMotherboardGraphicsRAM
Q6600 G0 @ 2.9Ghz (1.25V) 32'C/55'C EVGA nforce680i SLI (A1) 2x BFG 8800GT OC 512mb Edition (625/900) SLI 4x 1Gb Crucial Ballistix Tracers (PC2 6400) 800mhz 
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CPUMotherboardGraphicsRAM
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post #6 of 10
Quote:
Originally Posted by madprof666 View Post
ok i need sum help. just upgraded my rig to gx2`s and thought my 1100watt tagen would be ok. its not tho. doesnt have 8 pin, only 4x6pin and everyone is saying steer clear of adapters.
Shens.

There's nothing wrong with adapters for this application. The extra two wires are just ground wires. Get an adapter that adapts 6-pin to 8-pin or make your own by just taking a couple ground wires off of an unused connector.

Most "native" 8-pin connectors on PSU's are just 6+2-pin connectors and only have 6 wires coming down from the PSU with the two extra ground wires tapped off of the adjacent ground pins.
post #7 of 10
Thread Starter 
Quote:
Originally Posted by jonnyGURU View Post
Shens.

There's nothing wrong with adapters for this application. The extra two wires are just ground wires. Get an adapter that adapts 6-pin to 8-pin or make your own by just taking a couple ground wires off of an unused connector.

Most "native" 8-pin connectors on PSU's are just 6+2-pin connectors and only have 6 wires coming down from the PSU with the two extra ground wires tapped off of the adjacent ground pins.
i heard that, cept the 8 pin is supposed to carry 150 instead of 75. so surely 8pin cable must be thicker

also ive no idea where to get the bloody adapter from. EVGA dont supply on outside the US :'(
    
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post #8 of 10
Quote:
Originally Posted by madprof666 View Post
i heard that, cept the 8 pin is supposed to carry 150 instead of 75. so surely 8pin cable must be thicker

also ive no idea where to get the bloody adapter from. EVGA dont supply on outside the US :'(
It's not.

AGAIN: Look at any 6+2-pin on the market. It's a standard 6-pin with two ground wires tapped in. Take a look at some of the modular PSU's that have 8-pin PCIe connectors. Most of them have only 6-pins at the modular interface.

Evga tried to spread a little FUD about adapters catching fire and stuff, but they had no proof of this. When Nvidia launched the GX2, they notified partners of the interference problem three days before launch date. Most partners weren't prepared to address the issue. What does most companies do that's unprepared for a situation? Spread FUD.

That said, I honestly DO NOT BLAME EVGA. I am NOT an EVGA hater. It's totally Nvidia's fault for not fit checking PSU's with the GX2 in the first place.

If you can't find an adapter, just make your own ground wires. Do you have a PSU pin-removal kit? Every modder should have one in their tool box. You have four PCIe connectors on that PSU and only one GX2, right? Pop two ground wires from one of the other PCIe connectors and plug them into the last two pins of the graphics card. DONE.
post #9 of 10
Thread Starter 
Quote:
Originally Posted by jonnyGURU View Post
It's not.

AGAIN: Look at any 6+2-pin on the market. It's a standard 6-pin with two ground wires tapped in. Take a look at some of the modular PSU's that have 8-pin PCIe connectors. Most of them have only 6-pins at the modular interface.

Evga tried to spread a little FUD about adapters catching fire and stuff, but they had no proof of this. When Nvidia launched the GX2, they notified partners of the interference problem three days before launch date. Most partners weren't prepared to address the issue. What does most companies do that's unprepared for a situation? Spread FUD.

That said, I honestly DO NOT BLAME EVGA. I am NOT an EVGA hater. It's totally Nvidia's fault for not fit checking PSU's with the GX2 in the first place.

If you can't find an adapter, just make your own ground wires. Do you have a PSU pin-removal kit? Every modder should have one in their tool box. You have four PCIe connectors on that PSU and only one GX2, right? Pop two ground wires from one of the other PCIe connectors and plug them into the last two pins of the graphics card. DONE.
2x gx2 so i need all 4. there is a spare 4 pin motherboard connector tho.....that do?
    
CPUMotherboardGraphicsRAM
Q6700 3.6 ASUS striker 2 780i SLI EVGA GTX 295 8 G.Skill 1066 5-5-5-15 
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  hide details  
Reply
    
CPUMotherboardGraphicsRAM
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post #10 of 10
Quote:
Originally Posted by madprof666 View Post
2x gx2 so i need all 4. there is a spare 4 pin motherboard connector tho.....that do?
Ah.. you have two. Duh.. I remember you said that too.

Any spare connector's ground wires should work as long as it has the small square shaped pin. So yeah, a CPU power connector would work.
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