Zalman ZA1225ASL 1600RPM fans running only on 900-1000rpm issue

nurabsal92

Reputable
Mar 20, 2015
2
0
4,510
Hi, I have a zalman Z3 with 5 Zalman ZA1225ASL fans.
http://www.watercoolinguk.co.uk/p/120mm-Zalman-White-Case-Fan-ZA1225ASL-1600-RPM_43428.html
Problem is theyre all running only on 1000rpm, but they should be running on 1600 as the manufacturer says. One is Molex and other four are three pin. Molex + 2 other are plugged in MOBO, 2 another are plugged in cases forehead and into the PSU. Is here anyone who had those fans? Whats the problem with them? thanks.

My Specs:
Intel Xeon X5460 : 4GHZ (OC)
BIOSTAR Group TP45D2-A7, Intel P45 (Eaglelake-P) + ICH10 Consumer
2x CorsairCM2X1024-6400C4, 2x Transcend JM800QLJ-1G - 4GB RAM 800Mhz
EVGA nvidia GTX 470
ASUS VW221 22inch
System HDD: SAMSUNG HD501LJ 7200rpm
Western digital green 2TB
CoolerMaster Thunder 600W