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I think i have a defect P5b

post #1 of 5
Thread Starter 
The first obvious problem that i check in the bios is the stock Vcore @ 1.20! I'm using a P4 3.6ghz not a Core2Duo... I've used CPUZ and Asus PC Probe II and AI Suite to verify my Vcore is really @1.20.Also when i tried to up my voltage to 1.41 in the bios, but in Cpuz and other programs result was V1.35 and when i up the voltage to 1.55 it went crazy on me...it turn my computer on and off simultaneously! (3-4 times)

The next issue is that my mobo is not deteching my fan from the Chassis2 pin location. Last but not least, my cpu temperture is rather high even at stock setting i get like 55 C!! Also the only way to see the cpu temp is only in the bios and Asus PC Probe II and AI Suite that came with the P5B so im guess my sensor is bad Even Everest Ultimate was not able to detect my cpu temp...
My System
(14 items)
 
  
CPUMotherboardGraphicsRAM
Intel Q9550 2.83GHz Asus P5Q Deluxe MSi N580 Twin Frozr III Lightning Extreme F2-8800CL5D-4GBPI 
CoolingOSMonitorPower
Thermalright Venomous X Window 7 x64 1080p TV monitor Corsair 1000watts 
Case
Naked 
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My System
(14 items)
 
  
CPUMotherboardGraphicsRAM
Intel Q9550 2.83GHz Asus P5Q Deluxe MSi N580 Twin Frozr III Lightning Extreme F2-8800CL5D-4GBPI 
CoolingOSMonitorPower
Thermalright Venomous X Window 7 x64 1080p TV monitor Corsair 1000watts 
Case
Naked 
  hide details  
Reply
post #2 of 5
Got the latest BIOS?

Why do you see a 1.20V? Maybe because your CPU is running with C1E and EIST enabled. Those are power saving features and whenever your CPU uses them, the CPU will drop in speed and also will comsume less Vc.

The drop on VC is normal for the ASUS boards, they have a bad Vdroop but nothing to be alarmed at. It could drop as much as 0.05vc (I think). Also you need to up the voltage on the RAM and if the PC boots and reboots but you get to windows anyway, it's normal for when the P5B is overclocked.

Fan not recognized? maybe the RPM wire is broken or you just haven't turned it on in the PCProbeII program.

55C? I'd say double check to see if the screws are tighten and/or see if the fan is turning at its full speed rated, what is it? like 2000RMP or something like that.
post #3 of 5
Thread Starter 
Yes i have the lastest bios for my P5B. I turn off the C1 option and where is this EIST option cuz i don't see it. I set my Vcore to the normal 1.35 but it show 1.280V... My CPU fan is running at 2600 RPM my other 2 120 mm fans both running at 2100 rpm but it just doesn't recognize the other fan even tho it's running at full speed... The screw is tight on the Zalman so what could cause this high temp?

My most important question of all WHY DON'T EVEREST AND CPUZ AND SPEEDFAN don't detect my cpu temp?
LL
My System
(14 items)
 
  
CPUMotherboardGraphicsRAM
Intel Q9550 2.83GHz Asus P5Q Deluxe MSi N580 Twin Frozr III Lightning Extreme F2-8800CL5D-4GBPI 
CoolingOSMonitorPower
Thermalright Venomous X Window 7 x64 1080p TV monitor Corsair 1000watts 
Case
Naked 
  hide details  
Reply
My System
(14 items)
 
  
CPUMotherboardGraphicsRAM
Intel Q9550 2.83GHz Asus P5Q Deluxe MSi N580 Twin Frozr III Lightning Extreme F2-8800CL5D-4GBPI 
CoolingOSMonitorPower
Thermalright Venomous X Window 7 x64 1080p TV monitor Corsair 1000watts 
Case
Naked 
  hide details  
Reply
post #4 of 5
Not sure about why they don't see your CPU temp.......but they read from the same sensor PC Probe reads from, so it's doubtfully a bad sensor.....


I would uninstall AI Suite and see if you experience the same vCore issues.....in my experience, the AI overclocking programs can cause funky problems.......
post #5 of 5
Sounds like a bad board to me. RMA time.
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