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Asus Sabertooth z77 based PC doesn't work

post #1 of 5
Thread Starter 
Hello!
I've already bought Asus Sabertooth z77, Intel i7 3770K and 2x ASUS GTX 660 OC to 1085 but I didn't changed RAM and PSU: it's Patriot G2 2x8Gb 1333Mhz, and BeQuiet! Straight Power 500w
and this set doesn't work - Screen is all time black, memOK! diode is lighting all time (After pressing button too). I tried to replace ram, run with one ram. I tried to run with one GPU connected, without not important fans etc but it still doesn't work. I think i connected CPU properly.
Any Ideas?
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post #2 of 5
Your power supply is the odd one out here. 500w is barely capable of pushing all the components in your system - and even if the wattage is fine i'm sure there is not enough power on the 12v rail to supply the power to them. That would be my first guess. I would look for a power supply that has at least 50A on the 12V rail and at least 650W, ideally 750W. Also how many/what type of power plugs do both the 660's require? Does the 500w really provide all those cables? MAke sure the cables are plugged in properly.


If you look on the "details" page on newegg.com power supplys you can find the amperage on the 12v (+3.3V@25A, +5V@25A, +12V@62A, -12V@0.8A, +5VSB@3A) it is listed under "output" So in this case ----> 12V =62 amps
I can recommend the Corsair HX750 or AX860i. Both would be excellent choices - don't cheap out on your PSU, it supplies clean power to all those expensive components.

If you wanted to check the *Estimated* Wattage you will need you can visit : http://www.extreme.outervision.com/psucalculatorlite.jsp
although don't take it literally - it is just an estimate.
post #3 of 5
Thread Starter 
I'm using old PSU 'cause Evga superNOVA 750W didn't arived.
BeQuiet! have 2x 6+2 pin fo PCI-E and GTX 660 have 1x 6.
On ths page calculator said that, I need min. 411W PSU.
But as i said - i tried to run PC with only one graphic card only one disc and still nothing happend.
When i start PC i hear that HDD starting, but screen is still black and memOK! led lightning continously - 2x8GB 1333Mhz RAM from patriot is ok?
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CPUMotherboardGraphicsGraphics
3770K Sabertooth Z77 Asus Nvidia GTX 660 Asus Nvidia GTX 660 
RAMHard DriveHard DriveCooling
TridentX Samsung 850 EVO Western Digital Black 1TB Be Quiet! Dark Rock Pro C1 
OSMonitorKeyboardPower
Windows 10 Pro 2x Dell U2715H Roccat Isku Evga SuperNova Nex-750 
CaseMouseMouse PadAudio
SilentiumPC Aquarius X90 Logitech G502 Roccat Chrome Blue Roccat Kave 
AudioAudio
Creative Sound Blaster Z Logitech Z906 
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(18 items)
 
  
CPUMotherboardGraphicsGraphics
3770K Sabertooth Z77 Asus Nvidia GTX 660 Asus Nvidia GTX 660 
RAMHard DriveHard DriveCooling
TridentX Samsung 850 EVO Western Digital Black 1TB Be Quiet! Dark Rock Pro C1 
OSMonitorKeyboardPower
Windows 10 Pro 2x Dell U2715H Roccat Isku Evga SuperNova Nex-750 
CaseMouseMouse PadAudio
SilentiumPC Aquarius X90 Logitech G502 Roccat Chrome Blue Roccat Kave 
AudioAudio
Creative Sound Blaster Z Logitech Z906 
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post #4 of 5
Quote:
Originally Posted by Szarky View Post

I'm using old PSU 'cause Evga superNOVA 750W didn't arived.
BeQuiet! have 2x 6+2 pin fo PCI-E and GTX 660 have 1x 6.
On ths page calculator said that, I need min. 411W PSU.
But as i said - i tried to run PC with only one graphic card only one disc and still nothing happend.
When i start PC i hear that HDD starting, but screen is still black and memOK! led lightning continously - 2x8GB 1333Mhz RAM from patriot is ok?
Read your motherboard manual regarding the memOK button. I believe you have to hold the button down while powering up the computer in order for the motherboard to accept the memory.
post #5 of 5
Thread Starter 
hello!
Since 3 week I was happy user Asus Z77, everything worked great - now im mad, why?
Today I installed BeQuiet! Dark Rock Pro c1 and when I turning computer on, one short beep, discs starts and then: one long and four short beeps (ofc all time black screen)
I read that is problem with RAM, but I installed the same ram that was installed before cooler installation.


My PC:
CPU: Intel i7 3770K @ 3,5GHz
GPU: 2x ASUS GTX 660 DirectCU II OC 2GB DDR5
PSU: Evga SuperNOVA 750W
HDD1: OCZ Vertex 4 128GB (OS)
HDD 2/3: Seagate Barracuda 1TB 7200 (1 SATA2 2. Sata3)
RAM: I'm using only one stick but, i've got 2: Patriot PGD316G1333ELK

Edit:
one long and four short beeps means - CPU fan error - fixed
Edited by Szarky - 7/3/13 at 3:56pm
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(18 items)
 
  
CPUMotherboardGraphicsGraphics
3770K Sabertooth Z77 Asus Nvidia GTX 660 Asus Nvidia GTX 660 
RAMHard DriveHard DriveCooling
TridentX Samsung 850 EVO Western Digital Black 1TB Be Quiet! Dark Rock Pro C1 
OSMonitorKeyboardPower
Windows 10 Pro 2x Dell U2715H Roccat Isku Evga SuperNova Nex-750 
CaseMouseMouse PadAudio
SilentiumPC Aquarius X90 Logitech G502 Roccat Chrome Blue Roccat Kave 
AudioAudio
Creative Sound Blaster Z Logitech Z906 
  hide details  
Reply
Depth of blue
(18 items)
 
  
CPUMotherboardGraphicsGraphics
3770K Sabertooth Z77 Asus Nvidia GTX 660 Asus Nvidia GTX 660 
RAMHard DriveHard DriveCooling
TridentX Samsung 850 EVO Western Digital Black 1TB Be Quiet! Dark Rock Pro C1 
OSMonitorKeyboardPower
Windows 10 Pro 2x Dell U2715H Roccat Isku Evga SuperNova Nex-750 
CaseMouseMouse PadAudio
SilentiumPC Aquarius X90 Logitech G502 Roccat Chrome Blue Roccat Kave 
AudioAudio
Creative Sound Blaster Z Logitech Z906 
  hide details  
Reply
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