Hello everyone
Im looking to install new gpu into hp z800 workstation but want to make sure everything fits together before buying the card. I would like to upgrade the gpu to gtx 980 ti.
the specs of pc are
psu: 1110W. Specification of power supply: http://www.manualslib.com/manual/690474/Hp-Z800.html?page=22#manual
cpu: 2x xeon x5690
ram: 48 gb DDR3
hdd: 2x 500gb
I am planning to use reference model of the graphics card so it requires the minimum system power of 600W, gpu power requirement is 250W and needed connectors are 1x 6 pin and 1x 8pin.
The psu has 2 separate 12v rails @ 18 amps for PCIe power connectors. Each rail has one. But the problem is that both connectors are 6 pin. The PCIe slots are on different rail than the connectors. So the rails of the connectors should provide at maximum more than enough power for the graphics card having nothing else plugged into them.
But at default i could only power the card like this: PCIe slot gives 75W, connector 1 (6 pin) 75W, connector 2 (6 pin) 75 W, giving total of 225W which is not enough.
So the question is,will it be safe and reliable to use one 6 pin to 8 pin adapter to power the gpu. I have not managed to gather information on how reliable those adapters are. And reading this forum about z800 and gtx cards i found a topic where it was mentioned that splitting the gpu load between rails is not a good idea alltogether. (http://www.tomshardware.co.uk/answers/id-2542749/instal... second last post by user Quixit)
The questions are:
1. Is it the safe and reliable to power the gpu with connectors attached to different rails.
2. Should i power the gtx 980 ti with 6 to 8 pin adapter and 6 pin. Or molex to 8 pin and and a 6 pin.
I would be really greatful for replies helping to solve and understand the problem.
I was recommended to post this question on this part of the forum. Originally i started it in Graphics cards section. The original discussion here http://www.tomshardware.co.uk/answers/id-2729550/z800-workstation-gtx-980.html#16315433
Im looking to install new gpu into hp z800 workstation but want to make sure everything fits together before buying the card. I would like to upgrade the gpu to gtx 980 ti.
the specs of pc are
psu: 1110W. Specification of power supply: http://www.manualslib.com/manual/690474/Hp-Z800.html?page=22#manual
cpu: 2x xeon x5690
ram: 48 gb DDR3
hdd: 2x 500gb
I am planning to use reference model of the graphics card so it requires the minimum system power of 600W, gpu power requirement is 250W and needed connectors are 1x 6 pin and 1x 8pin.
The psu has 2 separate 12v rails @ 18 amps for PCIe power connectors. Each rail has one. But the problem is that both connectors are 6 pin. The PCIe slots are on different rail than the connectors. So the rails of the connectors should provide at maximum more than enough power for the graphics card having nothing else plugged into them.
But at default i could only power the card like this: PCIe slot gives 75W, connector 1 (6 pin) 75W, connector 2 (6 pin) 75 W, giving total of 225W which is not enough.
So the question is,will it be safe and reliable to use one 6 pin to 8 pin adapter to power the gpu. I have not managed to gather information on how reliable those adapters are. And reading this forum about z800 and gtx cards i found a topic where it was mentioned that splitting the gpu load between rails is not a good idea alltogether. (http://www.tomshardware.co.uk/answers/id-2542749/instal... second last post by user Quixit)
The questions are:
1. Is it the safe and reliable to power the gpu with connectors attached to different rails.
2. Should i power the gtx 980 ti with 6 to 8 pin adapter and 6 pin. Or molex to 8 pin and and a 6 pin.
I would be really greatful for replies helping to solve and understand the problem.
I was recommended to post this question on this part of the forum. Originally i started it in Graphics cards section. The original discussion here http://www.tomshardware.co.uk/answers/id-2729550/z800-workstation-gtx-980.html#16315433
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