Problems with Asus A7V133-C !

[KeillRandor]

Hello,

Fact nr 1:
Neither the Keyboard or Mouse PS2-connector seem to work. (I doubt BOTH keyboard and mouse is dead...)
(System boots up perfectly, Win XP)

Fact nr 2, or fan problems:
I recently bought some 80mm fans (1 Papst, 2 Zalmans),
and tried this config:
80mm Papst (modded for 3-pin, without RPM monitoring) Hooked to 3-pin CPU MB header cooling my Alpha 8045 w/ XP-1600
1 Zalman to cool Northbridge (Removed the 40mm fan) and my Geforce 256...
1 Zalman to exhaust case rear
(Already have 1 92mm in case front)

With all 3 fans connected (3-pin cpu MB-header, 3-pin MB F_Fan connector and 3-pin MB pwr connector)
the system wont start, well it starts for a 2 seconds and then shuts down. The only boot-working fan configuration
is to hook the Papst up to F-fan and the Zalman to the MB CPU connector. By the way this only works if I don't use
the resistor adapter that came with the Zalman...to lower Voltage of the fan... With resistor it does not boot...very strange...

I am worried that the MB took damage whith all 3 fans... But this is kind of ridiculus... 3 fans.. I mean my Papst is 0.6 Watts... The
board is not powering the subway ! I wanted all fans connected to the MB so to get monitoring capabilities...
and to reduce cable cluttering on the MB with Molex connectors...

Does anyone know if the board has some "overload shutdown" mechanism ? And how could 3 fans contribute to overloading... Compared to a power monster Athlon XP-1600 ?

Is it a "no recommendation" on this fan setup ?
Is it probable that the fans killed the MB PS2-connectors ?

Well..Thanx in Advance !

Rig:
Asus A7V133-C Rev.1.05 (BIOS 1005A,orig)
Athlon XP 1600+ (underclocked to 1050 Mhz) due to PC-100 SDRAM
128mb pc-100
Enermax 350w supply, noname miditower
Geforce 256
6.5 gb seagate dma-33,7200
27 gb ibm deskstar dma-66,7200
D-link 530tx ethernet
SB-live
SCSI card
Hollywood+

 

[GonzoDaGr8]

If you remove all extra fans from mobo except for cpu cooling, does your machine work right? loading up all of the fan headers is a lot of strain on the mobo and could possibly have damaged it. Ever wonder why those delta fans come with 4-pin molex connectors? That is why. You might want to clear CMOS and try it again with a minimum of fans..Let us know how it goes. BTW, does the keyboard work ok when you are in the BIOS? If so, then it could be a WinXP problem.

 

[KeillRandor]

I had no luck with clearing the CMOS, keyboard didn't work in BIOS.
I returned the mobo today and I have to wait for aprox 2 weeks :frown:

Btw the mobo requires a 3-pin fan connected to the CPU-connector to boot... Do you know if it
is possible to only attach ground/rpm signal to the connector and use Molex to drive the fan and still get the mobo to boot ?

 

[DoubleL]

I just moved the chipset cooler 3 pin over to the cpu header and run the rest of my fans off the power supply

 

[whalen]

<< Ever wonder why those delta fans come with 4-pin molex connectors? That is why. >>



No, they come with those because they require an amount of power that is too much for most headers to handle, not because it is a strain on the motherboard to have all the headers filled...why would they be there if that was the case...

 

[GonzoDaGr8]

<< I had no luck with clearing the CMOS, keyboard didn't work in BIOS.
I returned the mobo today and I have to wait for aprox 2 weeks :frown:

Btw the mobo requires a 3-pin fan connected to the CPU-connector to boot... Do you know if it
is possible to only attach ground/rpm signal to the connector and use Molex to drive the fan and still get the mobo to boot ? >>



Sorry to hear about your board dying.. Hope that the new one treats you better..

Yes, you can just run the rpm sensor and I think that that is all you need. Not sure if you actually need a ground or not though. You can also disable fan monitoring in BIOS so the "no cpu fan" warning will not come on. That is what I had to do when I had my water-cooled case. Take a look at one of those 7K rpm delta fans that have the seperate connectors for rpm signal and power molex and see how they are wired..

 

[GonzoDaGr8]

No, they come with those because they require an amount of power that is too much for most headers to handle, not because it is a strain on the motherboard to have all the headers filled...why would they be there if that was the case...

Yes, I realize that..Fans run at different rpm's and different current draws and unless you know exactly what the current draw is and the allowable maximum for the mobo header is, I feel you are taking a risk loading up all your fan headers with fans. This is just my personal take on this and I could be completely wrong or completely right..