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Problems with my new build AMD gaming machine :-(

post #1 of 29
Thread Starter 
Hi there smart people thumb.gif
Right I hope I am in the right place and not going to anoy anyone to start with. I am new to all this and this is my first forum outing biggrin.gif
Well my problem is I have built myself a gaming pc over the last eighteen months learning a little as I was going, but I have just bought 2 7970s and am trying to crossfire them but whenever I do my machine just shuts down when I play at HIGH resolutions (1920 x 1200) and will not restart until I turn my psu off on its mains switch let it clear and then back on? (Antec Quattro GT 850w)
I have run Furmark on both cards singularly and they seem fine. So I am guessing maybe a psu problem but dont want to spend on a new one unless I know for sure.
Spec:
Cpu: AMD 8350 4.5
mobo: ASUS Crosshair V Formula Z
Mem: Corsair Dominator GT 1866 4x2Gbs
Gpus: HIS 7970 IceQ2 x2 (Crossfire)
Drives: 2x SSD 1x HDD

Any help would be very much appreciated from a very amauter PC builder tongue.gif
Kind regards
Phoenix
post #2 of 29
Have you overvolted your video cards? even if you have not it sounds like the OCP or something like it on the PSU is kicking in and shutting off the PSU
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Seravee
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post #3 of 29
That psu only has 18 amps on each of it's 4 , 12 volt rails.

A good power supply , just not Ideal for the system that it is in.
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post #4 of 29
Quote:
Originally Posted by cssorkinman View Post

That psu only has 18 amps on each of it's 4 , 12 volt rails.

A good power supply , just not Ideal for the system that it is in.

Oh yeah i forgot its a multi 12v rail PSU so OCP IS kicking in and shutting off the PSU. And there are two 850 watts True Power Quattro the old one from 2007 and the the other one which is from 2009

OP should get a new one and one that is single 12v rail if he wants to overvolt
Seravee
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Intel Core I7 6850K Gigabyte X99 Ultra Gaming EVGA GTX 1080 FTW2 Kingston HyperX DDR4 Savage 3000 MHz 
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Onkyo TX NR646  Harman Kardon HKTS 60 Dali Opticon Vokal x2 Dali Opticon 2 
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Seravee
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LG CH12NS30 x5 Noctua NF-A14 FLX Noctua NH-D15S Windows 7 64 Bit 
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post #5 of 29
Thread Starter 
Hi again,
No I have not o/c I even put cpu back to stock.
The PSU is I think a good one but I do not know its age as I have had for eighteen months but I don't know how old it is.
So if you all feel it is the power supply what should I purchase around £100 give or take (Sorry skint.)
post #6 of 29
Quote:
Originally Posted by MrPhoenix View Post

Hi again,
No I have not o/c I even put cpu back to stock.
The PSU is I think a good one but I do not know its age as I have had for eighteen months but I don't know how old it is.
So if you all feel it is the power supply what should I purchase around £100 give or take (Sorry skint.)

http://www.overclockers.co.uk/showproduct.php?prodid=CA-013-EA
http://www.scan.co.uk/products/850w-evga-supernova-g2-full-modular-80-plus-gold-135mm-silent-fan-eps-12v-sli-xfire-atx

You dont really need 850 watts even the 750 watts is enough for your system

http://www.scan.co.uk/products/750w-evga-supernova-g2-full-modular-80plus-gold-135mm-silent-fan-eps-12v-sli-xfire-atx
Seravee
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CPUMotherboardGraphicsRAM
Intel Core I7 6850K Gigabyte X99 Ultra Gaming EVGA GTX 1080 FTW2 Kingston HyperX DDR4 Savage 3000 MHz 
Hard DriveHard DriveHard DriveHard Drive
Samsung 840 Evo WD Green WD60EZRX  WD Red WD80EFZX 8TB  Seagate Ironwolf Pro 10 TB 
Optical DriveCoolingCoolingOS
LG CH12NS30 x5 Noctua NF-A14 FLX Noctua NH-D15S Windows 7 64 Bit 
MonitorMonitorKeyboardPower
Asus PG279Q LG 49UH750V 4K LED TV Corsair Gaming Strafe RGB EVGA SuperNova G2 750 watt 
CaseMouseMouse PadAudio
Phanteks Enthoo Luxe Roccat Kone EMP Roccat Sense Metor Sennheiser HD 598 
AudioAudioAudioAudio
Onkyo TX NR646  Harman Kardon HKTS 60 Dali Opticon Vokal x2 Dali Opticon 2 
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x2 Dali Opticon 1 CableMod E series PSU cable set CableMod LED Strips 
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Seravee
(27 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core I7 6850K Gigabyte X99 Ultra Gaming EVGA GTX 1080 FTW2 Kingston HyperX DDR4 Savage 3000 MHz 
Hard DriveHard DriveHard DriveHard Drive
Samsung 840 Evo WD Green WD60EZRX  WD Red WD80EFZX 8TB  Seagate Ironwolf Pro 10 TB 
Optical DriveCoolingCoolingOS
LG CH12NS30 x5 Noctua NF-A14 FLX Noctua NH-D15S Windows 7 64 Bit 
MonitorMonitorKeyboardPower
Asus PG279Q LG 49UH750V 4K LED TV Corsair Gaming Strafe RGB EVGA SuperNova G2 750 watt 
CaseMouseMouse PadAudio
Phanteks Enthoo Luxe Roccat Kone EMP Roccat Sense Metor Sennheiser HD 598 
AudioAudioAudioAudio
Onkyo TX NR646  Harman Kardon HKTS 60 Dali Opticon Vokal x2 Dali Opticon 2 
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post #7 of 29
Quote:
Originally Posted by shilka View Post

Quote:
Originally Posted by cssorkinman View Post

That psu only has 18 amps on each of it's 4 , 12 volt rails.

A good power supply , just not Ideal for the system that it is in.

Oh yeah i forgot its a multi 12v rail PSU so OCP IS kicking in and shutting off the PSU. And there are two 850 watts True Power Quattro the old one from 2007 and the the other one which is from 2009

OP should get a new one and one that is single 12v rail if he wants to overvolt



So many inexperienced builders focus on the wattage rating of a psu without looking into it any further. It doesn't always work out too well frown.gif

I've made the same mistake myself redface.gif
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Ryzen Shine!
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post #8 of 29
Wattage brands and 80 plus has nothing to do with quality, You need to be aware of build quality ripple and voltage regulation in the PSU you have or want. If you dont want to bother looking into all that ask someone that know about stuff like that
Seravee
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Seravee
(27 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core I7 6850K Gigabyte X99 Ultra Gaming EVGA GTX 1080 FTW2 Kingston HyperX DDR4 Savage 3000 MHz 
Hard DriveHard DriveHard DriveHard Drive
Samsung 840 Evo WD Green WD60EZRX  WD Red WD80EFZX 8TB  Seagate Ironwolf Pro 10 TB 
Optical DriveCoolingCoolingOS
LG CH12NS30 x5 Noctua NF-A14 FLX Noctua NH-D15S Windows 7 64 Bit 
MonitorMonitorKeyboardPower
Asus PG279Q LG 49UH750V 4K LED TV Corsair Gaming Strafe RGB EVGA SuperNova G2 750 watt 
CaseMouseMouse PadAudio
Phanteks Enthoo Luxe Roccat Kone EMP Roccat Sense Metor Sennheiser HD 598 
AudioAudioAudioAudio
Onkyo TX NR646  Harman Kardon HKTS 60 Dali Opticon Vokal x2 Dali Opticon 2 
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post #9 of 29
Thread Starter 
Wow wasn't expecting so quick and so much response. THANKS ALL:thumb:
Please remember I am very new to all of this smile.gif Smart enough but no brain surgeon rolleyes.gif
So I am guessing all are in agreement that it is my PSU that is the problem.
So all I really need is sugestions on where to go know.
What do you guys have in your machines if they are drawing sim power.
post #10 of 29
Quote:
Originally Posted by MrPhoenix View Post

Wow wasn't expecting so quick and so much response. THANKS ALL:thumb:
Please remember I am very new to all of this smile.gif Smart enough but no brain surgeon rolleyes.gif
So I am guessing all are in agreement that it is my PSU that is the problem.
So all I really need is sugestions on where to go know.
What do you guys have in your machines if they are drawing sim power.

I already gave you a few links a few posts back, I looked and you cant find anything thats better around 100£ in fact you can find anything that better at all
Seravee
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CPUMotherboardGraphicsRAM
Intel Core I7 6850K Gigabyte X99 Ultra Gaming EVGA GTX 1080 FTW2 Kingston HyperX DDR4 Savage 3000 MHz 
Hard DriveHard DriveHard DriveHard Drive
Samsung 840 Evo WD Green WD60EZRX  WD Red WD80EFZX 8TB  Seagate Ironwolf Pro 10 TB 
Optical DriveCoolingCoolingOS
LG CH12NS30 x5 Noctua NF-A14 FLX Noctua NH-D15S Windows 7 64 Bit 
MonitorMonitorKeyboardPower
Asus PG279Q LG 49UH750V 4K LED TV Corsair Gaming Strafe RGB EVGA SuperNova G2 750 watt 
CaseMouseMouse PadAudio
Phanteks Enthoo Luxe Roccat Kone EMP Roccat Sense Metor Sennheiser HD 598 
AudioAudioAudioAudio
Onkyo TX NR646  Harman Kardon HKTS 60 Dali Opticon Vokal x2 Dali Opticon 2 
AudioOtherOther
x2 Dali Opticon 1 CableMod E series PSU cable set CableMod LED Strips 
  hide details  
Reply
Seravee
(27 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core I7 6850K Gigabyte X99 Ultra Gaming EVGA GTX 1080 FTW2 Kingston HyperX DDR4 Savage 3000 MHz 
Hard DriveHard DriveHard DriveHard Drive
Samsung 840 Evo WD Green WD60EZRX  WD Red WD80EFZX 8TB  Seagate Ironwolf Pro 10 TB 
Optical DriveCoolingCoolingOS
LG CH12NS30 x5 Noctua NF-A14 FLX Noctua NH-D15S Windows 7 64 Bit 
MonitorMonitorKeyboardPower
Asus PG279Q LG 49UH750V 4K LED TV Corsair Gaming Strafe RGB EVGA SuperNova G2 750 watt 
CaseMouseMouse PadAudio
Phanteks Enthoo Luxe Roccat Kone EMP Roccat Sense Metor Sennheiser HD 598 
AudioAudioAudioAudio
Onkyo TX NR646  Harman Kardon HKTS 60 Dali Opticon Vokal x2 Dali Opticon 2 
AudioOtherOther
x2 Dali Opticon 1 CableMod E series PSU cable set CableMod LED Strips 
  hide details  
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