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upgrade to 6970 or 6950[crossfire] - Page 3

post #21 of 25
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ok i will edit it if its a so big problem just a min
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main pc
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CPUMotherboardGraphicsRAM
q9550@3,84ghz@1.39v stronger-common perf lvl 7!... asus rampage formula x48 2x gigabyte 6970 windforce crossfire 8gb mushkin 1080mhz 5-5-5-15 
Hard DriveCoolingOSMonitor
2x1tb western digital 7200 rpm 64mb cache noctua nh-u12p windows 7 ultimate 64bit sp1 lg w2361v 1920x1080 23'' 
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post #22 of 25
For any of the above mentioned upgrades that involve crossfire, you need a bigger power supply. Period.



Here are some links to power usage for your hardware. These numbers are all stock performance, no overclock:
Processor: http://www.legitreviews.com/article/925/12/
Graphics cards: http://www.legitreviews.com/article/1488/18/


Q9550+6950Xfire = 187W+479W = 666W
Q9550+6970Xfire = 187W+596W = 783W
Q9550+6970single = 187W+348W = 535W

Tack on an additional 70W to 100W if you decided to OC the Q9550; those Xfire numbers are above your power supply's best case scenario.

All of that above would be assuming your power supply had a single 12V rail to feed the entire 750W. You don't though, your power supply only has 720W combined on four (4) different 12V rails. So you'll never get that full potential out of the power supply. Also don't forget that there are other things in your computer that require power also, like the motherboard, RAM, HDD, etc... They may not require a lot, but you still need to account for it.


If you don't get a different power supply, do you really want to push your current one that hard? That'll be a lot of expensive hardware to replace if your power supply blows out the 12v rails when it eventually fails.
Edited by bane-o - 11/5/11 at 9:54am
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CPUMotherboardGraphicsRAM
AMD Phenom II X6 1100T Black Edition ASUS Crosshair V Formula 2x XFX HD-697A-CNFC Radeon HD 6970 2GB Mushkin Enhanced Redline 8GB total DDR3-2133 
Hard DriveOptical DriveOSMonitor
4x old 80GB drives in raid 5 DVD-RW Windows 7 Pro x64 MSDN 3x Dell P2210Hc 
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OCZ ZX Series 1250W Lian Li PC-A71B 
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post #23 of 25
Thread Starter 
Quote:
Originally Posted by bane-o View Post
For any of the above mentioned upgrades that involve crossfire, you need a bigger power supply. Period.



Here are some links to power usage for your hardware. These numbers are all stock performance, no overclock:
Processor: http://www.legitreviews.com/article/925/12/
Graphics cards: http://www.legitreviews.com/article/1488/18/


Q9550+6950Xfire = 187W+479W = 666W
Q9550+6970Xfire = 187W+596W = 783W
Q9550+6970single = 187W+348W = 535W

Tack on an additional 70W to 100W if you decided to OC the Q9550; those Xfire numbers are above your power supply's best case scenario.

All of that above would be assuming your power supply had a single 12V rail to feed the entire 750W. You don't though, your power supply only has 720W combined on four (4) different 12V rails. So you'll never get that full potential out of the power supply. Also don't forget that there are other things in your computer that require power also, like the motherboard, RAM, HDD, etc... They may not require a lot, but you still need to account for it.


If you don't get a different power supply, do you really want to push your current one that hard? That'll be a lot of expensive hardware to replace if your power supply blows out the 12v rails when it eventually fails.
ye i know that i will have to see how it does and if i see problems i will change it for sure,i will get one card now and after 2-3 months i will get the 2nd one.thats my psu:

http://www.newegg.com/Product/Produc...82E16817202008
main pc
(15 items)
 
  
CPUMotherboardGraphicsRAM
q9550@3,84ghz@1.39v stronger-common perf lvl 7!... asus rampage formula x48 2x gigabyte 6970 windforce crossfire 8gb mushkin 1080mhz 5-5-5-15 
Hard DriveCoolingOSMonitor
2x1tb western digital 7200 rpm 64mb cache noctua nh-u12p windows 7 ultimate 64bit sp1 lg w2361v 1920x1080 23'' 
PowerCaseMouseAudio
750 watt chieftec turbo series 80+ cf certified cosmos s mx518 genius 4000 
  hide details  
Reply
main pc
(15 items)
 
  
CPUMotherboardGraphicsRAM
q9550@3,84ghz@1.39v stronger-common perf lvl 7!... asus rampage formula x48 2x gigabyte 6970 windforce crossfire 8gb mushkin 1080mhz 5-5-5-15 
Hard DriveCoolingOSMonitor
2x1tb western digital 7200 rpm 64mb cache noctua nh-u12p windows 7 ultimate 64bit sp1 lg w2361v 1920x1080 23'' 
PowerCaseMouseAudio
750 watt chieftec turbo series 80+ cf certified cosmos s mx518 genius 4000 
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post #24 of 25
Quote:
Originally Posted by vagoskonti View Post

I know, google told me. I got that pic that I linked straight from newegg's product listing that you posted.

Personally, I'd be concerned about an CPU OC and a 6970 with that supply. The whole 4 rail thing is really going to hurt stable, clean power delivery to everything.


that just my
sad wallet
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CPUMotherboardGraphicsRAM
AMD Phenom II X6 1100T Black Edition ASUS Crosshair V Formula 2x XFX HD-697A-CNFC Radeon HD 6970 2GB Mushkin Enhanced Redline 8GB total DDR3-2133 
Hard DriveOptical DriveOSMonitor
4x old 80GB drives in raid 5 DVD-RW Windows 7 Pro x64 MSDN 3x Dell P2210Hc 
PowerCase
OCZ ZX Series 1250W Lian Li PC-A71B 
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sad wallet
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CPUMotherboardGraphicsRAM
AMD Phenom II X6 1100T Black Edition ASUS Crosshair V Formula 2x XFX HD-697A-CNFC Radeon HD 6970 2GB Mushkin Enhanced Redline 8GB total DDR3-2133 
Hard DriveOptical DriveOSMonitor
4x old 80GB drives in raid 5 DVD-RW Windows 7 Pro x64 MSDN 3x Dell P2210Hc 
PowerCase
OCZ ZX Series 1250W Lian Li PC-A71B 
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Reply
post #25 of 25
Thread Starter 
Quote:
Originally Posted by bane-o View Post
I know, google told me. I got that pic that I linked straight from newegg's product listing that you posted.

Personally, I'd be concerned about an CPU OC and a 6970 with that supply. The whole 4 rail thing is really going to hurt stable, clean power delivery to everything.


that just my
to tell you the truth i had some issues with the 4870x2 with this like: the one 8 pin it had was damaged or i dont know what [it couldnt provide the power needed] and it made my pc shut down if i remember well and i changed it with another cable and it was fine.

Also i have tried ocing my cpu up to 3,6ghz and the best i could do is prime stable for about 30 min and then i got error.

I have write down the settings i used at a paper so i will start from there i guess i needed to raise up v core a little more.

When i did that oc to 3,6ghz when i shut down my pc the psu kept working for about 1 minute after the pc was off and it blowed out hot air so i guess yeah i need a bigger one,i will change it when i get the 2nd 6970 or 6950.
main pc
(15 items)
 
  
CPUMotherboardGraphicsRAM
q9550@3,84ghz@1.39v stronger-common perf lvl 7!... asus rampage formula x48 2x gigabyte 6970 windforce crossfire 8gb mushkin 1080mhz 5-5-5-15 
Hard DriveCoolingOSMonitor
2x1tb western digital 7200 rpm 64mb cache noctua nh-u12p windows 7 ultimate 64bit sp1 lg w2361v 1920x1080 23'' 
PowerCaseMouseAudio
750 watt chieftec turbo series 80+ cf certified cosmos s mx518 genius 4000 
  hide details  
Reply
main pc
(15 items)
 
  
CPUMotherboardGraphicsRAM
q9550@3,84ghz@1.39v stronger-common perf lvl 7!... asus rampage formula x48 2x gigabyte 6970 windforce crossfire 8gb mushkin 1080mhz 5-5-5-15 
Hard DriveCoolingOSMonitor
2x1tb western digital 7200 rpm 64mb cache noctua nh-u12p windows 7 ultimate 64bit sp1 lg w2361v 1920x1080 23'' 
PowerCaseMouseAudio
750 watt chieftec turbo series 80+ cf certified cosmos s mx518 genius 4000 
  hide details  
Reply
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