A7V333 No post!

[anon1mat0]

I just got an A7V333 (no raid) from newegg and once after I placed everything on, and turned the PSU On, the green led turns on, but after pressing the power button the fans try to start for a second and then ... nothing! I already checked all the jumpers (are on their default positions), the PSU connection, etc but I does not work! Its frustrating, I also got a K7S5A for my mother in law, and that one turns the fan but no video! I was planning on changing my old KT7 which is bugging because a fried PSU but that at least works!!!

If someone has any clue please let me know (I have searched all over with no success...)

 

[IRJack]

Make sure your heatsink is mounted properly. The a7v333 has a hardware CPU diode monitor that will shut down the system immediately if the core overheats. I would think that you would get through post though.

Are you trying to overclock at all? If so, back the speed off. My a7v333 w/ 1600+ will boot into windows at fsb at 160mhz, but won't even post at 166.

GL.

 

[anon1mat0]

Right now I have the dip switch and jumpers to jumper free, so in theory should be taking the processor default (no OC). By the way the specs are these:

XP1800+
2 Corsair DDR333 CL2
Radeon 8500LE
ATI IEEE 1394 PCI board

N

 

[IRJack]

The hsf is keyed, so make sure the bevel of the hs is going toward the back of the cpu socket. If you get it in the wrong orientation, the hs will not sit on the cpu - ie no cooling and your system will shutdown extra quick.

Can you get into bios? If so check your settings there. Go check the h/w monitor to get a temp reading(note that this will be from the socket thermistor).

If you can't get into bios, take all of your cards out of the board except the vid card. Disconnect your hard drive, floppy drive, CDs, pci cards, everything. All you want is the cpu, memory, and video card. Then try to boot. You may try to use only 1 stick of ram also.

If you still can't get up and running, check your power supply. You probably need a quality 300W or larger supply.

GL.

 

[mechBgon]

What they said ^ Definitely sounds like the overheat protection is seeing a rapid temperature spike and cutting power to prevent damage, and you should check that you have the heatsink on correctly. Like IRJack says, check to make sure the stepped end of the heatsink is over the solid end of the CPU socket. If you have an aftermarket heatsink with a removable clip, it's important to make sure the clip's not reversed either. The clip's pressure point must be centered on the CPU core, and since it's asymetrical, having it backwards will cause Trouble.

And the power supply suggestion is good too. Bad thing to skimp on, any more.

 

[anon1mat0]

 

[anon1mat0]

Nope. The HSF was correctly installed. The board is deffective (or I am stoopid...). I tried with a new Antec TruPower 430W and this time the fans ran, accompanied with a bit of smoke (!!!) from the corner where the speaker/pwr led/pwr/reset pins are (I swear those were correctly placed according to the bloody manual). To my dismay I tried to put back my old KT7 and it does'nt work also!!! I am still wondering if I did something wrong and what was that, but this is not my 1st built computer... (the PSU was in the correct voltage -115-, connected properly to the MB, the polarity of the speaker was correct -there is no beep- the keyboard doesn't flash but the fans work) If a thunderbolt hit the house while I was out all the electronics should be dead! And I try always to discharge my self before handle my parts to say that was static. Is this a bad streak??!!

N