Problem with ASUS P6T and Intel i7 920

Hello,
I've just finish to assemble my new PC which has the following configuration:

Intel i7 920
ASUS P6T
OCZ 3*2GB 1600 Mhz
Coolmax 700W
2*Seagate SATA 2 750 GB
Sapphire ATI HD 4850 1 GB

I've connected all the wires, but the system doesn't start completely. Only the two leds of the power and reset on the motherboard emanate light.

More info about the wires: On the motherboard there was (at the left top) a socket with 8 pins, 4 of which had a lid. I've removed the latter and through a 4 pin to 8 pin adaptor connected the PSU to this socket.
Then I've connected the main wire the the mobo and through a molex to 6 pin adpt the PSU to the HD 4850.

I don't know what to do. I kindly request your help.

Thanks a lot for your time.
30 answers Last reply
More about problem asus intel
  1. Try removing the 4 to 8 pin adapter and just plugging the 4 pin into where it was originally intended. I believe it is the right 4 pins on the socket. I am pretty sure they made the board so it could be powerered by either 4 or 8 pins, and maybe for some reasons its not getting enought when it is spread to 8..
  2. I've already tried that. Thanks anyway :-).
    This situation is driving me crazy! I've controlled my work 1000 times...
    Any other solution?
  3. Have you tried booting with just one stick of RAM installed? I also agree that you should remove the 4 to 8 pin adapter and just power the four pins that were originally not covered.
  4. dave8624 said:
    Try removing the 4 to 8 pin adapter and just plugging the 4 pin into where it was originally intended. I believe it is the right 4 pins on the socket. I am pretty sure they made the board so it could be powerered by either 4 or 8 pins, and maybe for some reasons its not getting enought when it is spread to 8..


    Anonymous said:
    Have you tried booting with just one stick of RAM installed? I also agree that you should remove the 4 to 8 pin adapter and just power the four pins that were originally not covered.


    Yes, I did both of the things you said. Nothing happens.
    I also tried to boot without RAM (I remember old PCs worked and then beeped) but nothing.

    Do you think it can be that the PCI-Express adapter for the VGA is faulty??
  5. Why did you have to use the molex to 6-pin adapter? Your PSU should have come with at least one 6-pin PCI-E connector. I don't trust adapters. Just plug the GPU directly into the PSU.
  6. dave8624 said:
    Try removing the 4 to 8 pin adapter and just plugging the 4 pin into where it was originally intended. I believe it is the right 4 pins on the socket. I am pretty sure they made the board so it could be powerered by either 4 or 8 pins, and maybe for some reasons its not getting enought when it is spread to 8..


    Anonymous said:
    Why did you have to use the molex to 6-pin adapter? Your PSU should have come with at least one 6-pin PCI-E connector. I don't trust adapters. Just plug the GPU directly into the PSU.



    You're right. The PSU has two PCI-Express connectors; the only problem's that they're not long enough to reach the VGA. Do you think it may be due to the VGA power problem that the system does not start?
  7. It could be. A little more information would be helpful. Have you plugged in the system speaker? Do you hear any beeps? Did you remember to install the standoffs between the motherboard and case? Have you tried getting it to boot outside of the case on a non-conductive surface to rule out a short?
  8. dave8624 said:
    Try removing the 4 to 8 pin adapter and just plugging the 4 pin into where it was originally intended. I believe it is the right 4 pins on the socket. I am pretty sure they made the board so it could be powerered by either 4 or 8 pins, and maybe for some reasons its not getting enought when it is spread to 8..


    Anonymous said:
    It could be. A little more information would be helpful. Have you plugged in the system speaker? Do you hear any beeps? Did you remember to install the standoffs between the motherboard and case? Have you tried getting it to boot outside of the case on a non-conductive surface to rule out a short?


    Yes, the system speaker is connected. I do not hear any beep (If I did I'd be relieved). The fans (that usually are the first thing to start) don't start. I've also installed the standoffs correctly. I did not try to boot outside of the case. I do not think it's a short, the two leds on the mother board light.
  9. I tried to connect the VGA directly to the PSU connector. Still nothing.
    Any other solution?
    Thanks a lot
  10. Up!
  11. And? What was the issue?
  12. azsportsfan said:
    And? What was the issue?


    The system doesn't start at all. Neither the fans.

    I think it might be the PSU.
    I shortcircuited the green cable with a black one (to power the PSU on) and then connected a fan with a molex to see if it worked, but nothing.
    The only thing that make me believe it is NOT PSU's fault is that the two leds on the mobo light up.
  13. Up!
  14. Had you tried assembling the computer out of the case? Sometimes the case has metal parts causing shorts on the MB. It is worth a try.
  15. No I did not. I'm going to do it. But if it cause a short neither the leds on the mobo should light up. Or not?
  16. Is that the CoolMax 700W modular PSU you are using?
    http://www.coolmaxusa.com/productDetailsPower.asp?item=CUG-700B&details=spec&subcategory=120mm&category=modular

    It sounds very strange that the PCi-e power lead does not reach the card.

    I have exactly the same proc and mobo as you and have no problems getting my power cords to reach my graphics card.

    Below is a pic from the CoolMax site of what I think is your mobo


    It states you have a 8 pin 12v mobo connector, have you been trying to plug the wrong one in (ie the P4 4 pin connector)?
  17. merlinbadman said:


    No it's not the modular one. It's the following:

    http://www.directron.com/cti700b.html

    I sent it back hoping that they change it with this: http://www.directron.com/ocz700sxs.html

    I hope it's that. I tried the coolmax on an old P4 1.8 Ghz and it did not work at all (the PSU should be retrocompatible, so it should have worked, right??)

    Thanks
  18. Up!
  19. Yes the PSU should have worked in an older machine, indicating that there is aproblem with your PSU.
  20. I'd say its your PSU. If you shorted the green wire with a black wire (while it was plugged in and switch on of course) and the fans didn't turn on most likely this is a faulty PSU. Can you get your hands on another PSU to run your system?
  21. kubes said:
    I'd say its your PSU. If you shorted the green wire with a black wire (while it was plugged in and switch on of course) and the fans didn't turn on most likely this is a faulty PSU. Can you get your hands on another PSU to run your system?


    No, I do not have another PSU to try.
    I tried with the green and black wire trick but I don't know if it works with the new PSU. Do you know it?

    Thanks again.
  22. At this point all i can recomend is that its a bad PSU. The shorting trick should work with that PSU. Maybe one of the other forum members might have a trick but its hard to say its something else when your psu won't even turn on by shorting it.
  23. That CoolMAX PSU is cr@p. It's cheap, and not good quality. Get a REAL QUALITY PSU from Corsair, PC Power & Cooling, Antec, OCZ.

    Also see:
    http://www.tomshardware.com/forum/257057-28-what-power-supply

    Get a Corsair 750 or PC Power & Cooling 750. Don't bother with modular unless you have a specific need (ie sticking it in a SFF case,etc).
  24. Shadow703793 said:
    That CoolMAX PSU is cr@p. It's cheap, and not good quality. Get a REAL QUALITY PSU from Corsair, PC Power & Cooling, Antec, OCZ.

    Also see:
    http://www.tomshardware.com/forum/257057-28-what-power-supply

    Get a Corsair 750 or PC Power & Cooling 750. Don't bother with modular unless you have a specific need (ie sticking it in a SFF case,etc).



    I sent it back and told them to send me this OCZ: http://directron.com/ocz700sxs.html .
    What do you think about it?

    Thanks
  25. ^ Much better. Though I still would prefer a Corsair or a PC Power & Cooling. But the OCZ should do the job.
  26. I'm having the same problem with my board. The power and reset buttons on the board light up and pushing the start button causes the fans to spin for a second, but then nothing. That's all I can get it to do. I was wondering about the 8-pin socket having 4 pins covered, but I have tried the 8 and 4 pin plugs and the same results.
  27. dredgenot said:
    I'm having the same problem with my board. The power and reset buttons on the board light up and pushing the start button causes the fans to spin for a second, but then nothing. That's all I can get it to do. I was wondering about the 8-pin socket having 4 pins covered, but I have tried the 8 and 4 pin plugs and the same results.


    At least your fan spinned for a second, mine did not. Maybe in your case it's a short circuit.
    You can try your PSU onto another PC like I did (in my case I think that the PSU was faulty).

    Let us know...
  28. Problem Solved, it was the PSU!
  29. rossi__luigi said:
    Problem Solved, it was the PSU!


    Good :D

    And dredgenot - That does does sound like a duff PSU, try swapping it out (if you can get a spare) to confirm this.
Ask a new question

Read More

New Build Asus Intel i7 Systems