psu 6pin molex adapters..

adamknox

adamknox

adamknox

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I recived a new case today and after installation i had connected all the fans/cathode to one string (rail?) of molexs. I now have one string compleatly free. each 'string' has 3 molexs on. IF i ever got a 2nd 5870 could i use the adapters safely on the 2nd empty string? My psu is stealthxstream 700w (using the psu calculater online, it says for my system with a corssfire ill need 520w) rather than spending a £120 on a psu upgrade (which could go towards a 2nd 5870) would it be safe to use the adapters (two of them) on the free string of molexs? thanks for any help you can give - adam :)
 
PSU specs :)

General
Device Type Power supply - active Power Factor Correction (PFC) - internal
Specification Compliance ATX12V 2.2/ EPS12V
Width 15 cm
Depth 14 cm
Height 8.6 cm
Localisation United Kingdom

Power Device
Input Voltage AC 115/230 V
Input Voltage Range AC 100 - 240 V
Frequency Required 50 - 60 Hz
Output Voltage +3.3, +5, ±12 V
Output Connector(s) 4 PIN internal power, 4 PIN mini-power connector, 15 pin Serial ATA power, 6 pin PCI Express power, power 24 pin ATX with detachable 4 pin section, power 8 pin EPS12V with detachable 4 pin ATX12V section, 8 pin PCI Express power with detachable 2 pin section
Power Output Connectors Details 1 x power 24 pin ATX with detachable 4 pin section ¦ 1 x power 8 pin EPS12V with detachable 4 pin ATX12V section ¦ 1 x 6 pin PCI Express power ¦ 1 x 8 pin PCI Express power with detachable 2 pin section ¦ 6 x 4 PIN internal power ¦ 2 x 4 PIN mini-power connector ¦ 6 x 15 pin Serial ATA power
Power Provided 700 Watt
Output Current +3.3V - 36 A ¦ +5V - 30 A ¦ +12V1 - 18 A ¦ +12V2 - 18 A ¦ +12V3 - 18 A ¦ +12V4 - 18 A ¦ -12V - 0.8 A ¦ +5VSB - 3 A

Miscellaneous
MTBF 100,000 hour(s)
Features Active Power Factor Correction (PFC) , 120mm fan, over current protection, over voltage protection, quad 12V rails, short-circuit protection
 
Either im going mental or I cant read, maybe even a mixture of the two lol. Just read that PSU spec but it says 1x 8 pin and 1x 6 pin, then another 8 pin with a 2 pin detach on it, that means your still missing either a 6 pin or 8 pin connector depending on how you want to utilise those connectors?
 
James J said:
Either im going mental or I cant read, maybe even a mixture of the two lol. Just read that PSU spec but it says 1x 8 pin and 1x 6 pin, then another 8 pin with a 2 pin detach on it, that means your still missing either a 6 pin or 8 pin connector depending on how you want to utilise those connectors?
Click to expand...

i know its so weird -_- the oc description says it only has 4 molex connecters, amazong description says it only has 5 sata connecters and ebyer says ^^^^ above. -_- i only has 2 gpu connecters and molex connecters/adapters.
 
im a little confused.
you say you have a 5870 running off a 700w stealthXstream. so this would be using your only 6pin and your only 8pin pcie connector. you want to add a second 5870 and power it from molex?

if thats the case, id rather doubt it. the psu splits its power up into different parts. for example 250-350W might go to the motherboard connectors, another 200 might go through the PCIe, and only about 50-100 will be saved for molex/sata connectors.
those molex>pciE adapters are generally used for older systems that have been upgraded with a modern low-mid graphics card (as anything above that would be overkill in such a system)

edit: off the top of my head a 5870 pulls about 190w under load. 75w of this would come from the motherboard, so you'd need a psu that puts at least 115w+enough to power hard drived/dvd drives etc. on the molex bit.
 
Last edited:
thingemajib said:
im a little confused.
you say you have a 5870 running off a 700w stealthXstream. so this would be using your only 6pin and your only 8pin pcie connector. you want to add a second 5870 and power it from molex?

if thats the case, id rather doubt it. the psu splits its power up into different parts. for example 250-350W might go to the motherboard connectors, another 200 might go through the PCIe, and only about 50-100 will be saved for molex/sata connectors.
those molex>pciE adapters are generally used for older systems that have been upgraded with a modern low-mid graphics card (as anything above that would be overkill in such a system)

edit: off the top of my head a 5870 pulls about 190w under load. 75w of this would come from the motherboard, so you'd need a psu that puts at least 115w+enough to power hard drived/dvd drives etc. on the molex bit.
Click to expand...

hmm okay then :( The molex connecters came with the 5870 tho, i didnt buy them seperately. guess ill have to do a bit of upgrading -_- thanks :)
 
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