New Fan Running 100% and not responding to control!

[hartjo1]

I just finished replacing my stock Intel CPU cooler with a Zalman CNPS5X Performa. When I booted up the fan began running at 100%. Previously the stock fan regulated itself via the mobo and bios. I could also manually control it via MSI Afterburner. But this new fan runs on full all the time regardless and I cannot control it manually.

I checked the BIOS and the fan control is set to automatic. As I said, the. Stock fan handled this all just fine and I didn't make any changes to the BIOS before or after. I did go into the BIOS or ensure that fan control was set to auto and I can get it to run at a slower speed if I set the power level in the BIOS, but its still a static speed. Any idea why this is happening? Shouldn't this after market fan perform just as well as the stock fan? Both are 4-pin. So why have I lost control of the fan?

Intel Core i5-3350P 3.1GHz Quad-Core
ASRock Z77 Extreme4-M Micro ATX LGA1155
Crucial Ballistix Sport 8GB (1 x 8GB) DDR3-1600
Samsung 840 EVO 120GB 2.5" SSD
PowerColor Radeon HD 7870 XT 2G
Fractal Design Node 605 HTPC
Raidmax 730W ATX12V / EPS12V
LG BT30N Blu-Ray/DVD/CD Writer
Microsoft Windows 8.1 - OEM (64-bit)

 

[crookedmouth]

I TAKE it your cpu temp is good? You applied the right amount of good quality thermal paste? Just checking.

The cooler is seated well?

 

[hartjo1]

I TAKE it your cpu temp is good? You applied the right amount of good quality thermal paste? Just checking.

The cooler is seated well?

Yes, the temp is a constant 40 degrees. Plenty of Arctic Silver 5. Even if it were poorly seated I should still be able to control it manually, no?

 

[e56imfg]

What are the other fan options inside the BIOS besides auto?

Usually there is auto/normal, pwm, and/or manual. If you see PWM in there make sure to have that option selected.

And are you sure you are using the CPU fan header on the mobo?

 

[hartjo1]

What are the other fan options inside the BIOS besides auto?

Usually there is auto/normal, pwm, and/or manual. If you see PWM in there make sure to have that option selected.

And are you sure you are using the CPU fan header on the mobo?

There are only two options. Full On and auto. If I select auto I can chooses a "Level." Those are the only options I have. Double-checked the header. It's on CPU Fan 1. It's the same one it was on before and the only 4-pin header available. I'm really confused!

 

[crookedmouth]

Is it possible you did something that removed the cpu throttle? This might cause that fan behavior.

 

[hartjo1]

Is it possible you did something that removed the cpu throttle? This might cause that fan behavior.

Anything is possible

What BIOS setting would I be looking for?

 

[crookedmouth]

In BIOS under chipset or advanced it would be SpeedStep and it should be enabled also check to see if you have somehow altered a maximum cpu temp or something to be very high.