Finding the PLL / Changing the FrontSideBus

You can modify the CPU frequency in two ways:

1) Changing the multiplier
2) Changing the FrontSideBus

The CPU frequency is the product of multiplier and FrontSideBus. Many mainboards support that the user can switch the FrontSideBus by programming the new frequency with some commands via the SystemManagementBus, so you could change the CPU frequency while windows is running without leaving the operating system.

There are only two disadvantages:

1) You must know the vendor and the version number of the PLL IC that is responsible for the FSB frequency. There are only eight major companies that sell these IC's (cypress bought icw so it is the same internet address)

The PLL of NVidia Chipsets is included in the south bridge. So there is no PLL to find. NVidia southbridges are all supported.

ics

cypress        and icw  

windbond

imi

plllabs

cmedia

realtek  

pericom  

There are two possiblities to find the version of PLL IC. The first is that it is already implented in CPUCooL. Please email me your board type and PLL IC and it will be added to the list. If it is not in the list, you must look at your motherboard. There are several IC's and a crystal with a value of 14.3 MHz typed on top, it is next to this crystal that the IC's normaly reside. Then you should look at the supported PLL's and if there is a match you are the winner.

Here are some examples:

2) Speeding the FrontSideBus can be critical thing because you leave the specifications of the chip producer, it is possible to blow your CPU. But I have not heard of such a case (Please send me a e-mail). Here are the front side bus speeds of different CPU's. If you have speed up you CPU to a frequency which is too high, the system will hang, right at the moment you press the SET FREQUENCY button. Normally you have to switch off the power to reboot your system.

CPUCooL supports the follwing south bridges / chipsets:

Intel TX / LX / BX / 810 / 815 / 820 / 830 / 840 / 845 / 848 / 850 / 852 / 855 / 865 / 875 / 910 / 915 / 925 / 945 / 946 / 955 / 960 / 963 / 965 / 975 / G31 / G33 / G35 / P31 / P35 / Q35 / X38 / 6300ESB

Via 82C586B / 82C596A / 82C596B / 82C686A/B / 8233 / 8235 / 8237 / 8237A

SIS 5595 / 5595V2 / 540 / 630 / 635 / 640 / 645 / 646 / 648 / 649 / 650 / 651 / 661 / 730 / 735 / 740 / 741 / 745 / 746 / 755 / 760 / 964

ALI M1533 / M1534 / M1535 / M1567 /  M1647

AMD 750 / 760 / 8111 / SB200 / SB600 / SB700

NVidia NForce2 / NForce3 / NForce4 / NForce5 / NForce 4?0 / NForce 5?0

ATI RX330

CPUCooL supports the following PLL's (you can select them manually if there is no mainboard selection):


CMedia

8864-04   8864-17   8864-26B/D   8864-36   8864-37B   8864-39


Cypress / ICW / IMI

W124   W127   W144   W145   W149   W150   W153   W156   W164   W167 (A / B)   W177   W179   W195B   W196   W199   W204   W207   W209  B/C  W210   W211   W212   W214   W216   W219   W225   W229   W230   W230-3   W233   W247   W250   W281   W305   W310 W311   W312   W312-2

W48S67-02   W48S68-01   W48S87-04   W48S87-72   W48S101-04   W48S111-14

CY2275-12 =Thinkpad 535X!!!   CY2277A-2   CY22K7

CY28316   CY28317   CY28318   CY28319   CY28323   CY28324   CY28325   CY28329   CY28331   CY28341   CY28342   CY28344   CY28346   CY28347   CY28348   CY28372   CY28378   CY28404   CY28405   CY28551

SG543   C8750   C9703   C9827 C9834   C9835   C9827 C9870 C9929


ICS

9148B-04   9148-08   9148-17   9148-26   9148-32   9148-36   9148-37   9148-46   9148-47   9148-53   9148-58   9148-60   9248-77 9148-75   9148-82   9148-93   9148-111

9150-04   9150-08

9248-39   9248-64   9248-72   9248-73   9248-77   9248-78   9248-80   9248-81   9248-87   9248-90   9248-96   9248-97   9248-98   9248-99   9248-100   9248-101   9248-102   9248-103   9248-105   9248-107   9248-110   9248-112   9248-114   9248-121   9248-122   9248-126   9248-127   9248-128   9248-131   9248-134   9248-135   9248-136   9248-138   9248-141   9248-142   9248-146   9248-151   9248-153   9248-162   9248-163   9248-165   9248-168   9248-169   9248-171   9248-173   9248-175   9248-189   9248-192   9248-198   9248-199

9250-08   9250-10   9250-13   9250-14   9250-16   9250-18   9250-19   9250-23   9250-25   9250-26   9250-30   9250-37   9250-50

94201   94203   94208   94209   94211   94215   94220   94222   94224   94225   94227   94228   94229   94230 94231   94235   94236   94239   94240   94241   94258   94261   94262   94301

950003   950102   950202   950208   950209   950213   950218   950219   950220   950211   950219   950223   950224   950225   950227   950401   950402   950403   950405   950508   950602   950703   950812   950813   950815   950818   950901   950902   950910   950913   951001   951011   951104   951402   951403   951412   951413   951416   951418   951461   941462   951601   951702   951704   951808   952001   952003   952004   952005   952007   952011   952018   952023   952201   952301   952302   952603   952605   952606   952607   952611   952618   952619   952621   952647   952701   952702   952801   952802   952906   952911   953002   953401   953805   954103   954108   954120   954123   954130   954141   954227   954310

9LPRS419   9LPR501   9LPR502   9LPR604

93S401

IDT

CV107   CV110   CV115   CV122   CV123   CV125   CV126   CV133   CV142   CV146   CV152   CV174   CV184   CV190  


IMI

SG543   C8750   C9703   C9834   C9835   C9827 C9929

NVidia

NForce2   NForce3   NForce4   NForce5   NForce 4?0   NForce5?0


Realtek

RTM360-746 RTM520-04   RTM520-39   RTM540-195   RTM540-630 RTM560-25   RTM560-50   RTM560-266 RTM660-850


PERICOM

PI6C104


PLLabs

52C63-1  

52C65-2  

52C66-1   52C66-3   52C66-10   52C66-11   52C66-19   52C66-23   52C66-28   52C66-29   52C66-31 52C66-31   52C66-38   52C66-39

52C68-2   52C68-4

52C72-4   52C72-5

202-1   202-3   202-4   202-11   202-13   203-51   203-61   205-1   205-3   205-13   205-16

 

Silego

SLG505   SLG8LP703


Winbond

W83115RG(WG)

W83193R-01   W83193R-02   W83193R-04

W83194R17(A)   W83194R-37   W83194R-39(A/B)   W83194R-58(A)   W83194R-59   W83194BR-63   W83194R-67   W83194R-67B   W83194R-73   W83194R-81   W83194AR-96   W83194-97   W83194BR-138   W83194BR-250   W83194BR-323   W83184BR-372   W83194R-630(A)   W83194BR-648   W83194BR-655   W83194BR-703   W83194R-730   W83194BR-740   W83194BR-903   W83194BR-B   W83194BR-K8   W84194BR-KX   W83194BR-P4X   W82194BR-PT   W83194AR-W   W83194AR-WE   W83194BR-S   W83194BR-SD

W83195R-08   W83195-14   W83195(A/B)-25   W83195AR-WE   W83195BR-S   W83195(A/B)R-25   W83195BR-119   W83195BR-101   W83195BG-101   W83195BR-118   W83195BG-118

W83196S-14

CPUCooL does not support the following PLL's because they do not have a System Management Bus connection or the FSB could not be set via System Management Bus. So there is and will be no program that supports these PLL's!!! There is absolutely no chance!

AMI

FS6232-01

CMedia

8860   8863-03   8865-27  

Cypress / ICW

48C101-01   48C111-16   48C111-17  

CY2220   CY2254   CY2272   CY2273A   CY2275A   CY2276A -12   CY2276-13   CY2276-21   CY2276-31   CY2277A   CY2278A   CY2280   CY2283   CY2285   CY2287   CY2291  

CY28158   CY28301   CY28329   CY28343   CY28409   CY28410    CY28411   CY28441

W40S01-04   W40S11-02   W40S11-23

W133   W134   W137   W147G   W155   W158   W159   W161   W208   W215   W218   W224 W228   W234   W237   W238   W255   W280   W320

ICS

9148-02   9148-03   9148-10   9148-11   9148-12   9148-13   9148-14   9148-15   9148-18   9148-20   9148-25   9148-27   9148-49  

9150-01   9150-02   9150-11

9158-03

9169-01   9169-27   9169-36

9211-02

9212-13

9248-20   9248-50   9248-55   9248-61   9248-65   9248-66   9248-92   9248-150   9248-185

9250-09   9250-11   9250-12   9250-18   9250-22   9250-27   9250-28   9250-29   9250-32   9250-33   9250-38   9250-51

932s200   932s203   932s208

950201   950401   950805   950810   950811   951601   951703   952601   952621   952624   952703   954101

9LP505(-1 or -2)

MK1491-06

IDT

CV132 

IMI

570   571   577   610   615   616   617   618   619   652   657  660   673  677   680

C4814   C9701   C9714   C9716   C9777   C9801   C9805   C9806   C9806b   C9811   C9811X2   C9812   C9816   C9817   C9819   C9850

Pericom

PI6C100   PI6C102   PI6C102-16   PI6C103   PIC6C105   PI6C106   PI6C110   PI6C110E   PI6C133   PI6C410(M) PI6C2504   PI6C2509  PI6C2510 PI6C5930   PI6C5932   PI6C671   PI6C673   PI6C857

PLLabs

51C04  

52C20   52C21   52C22   52C23   52C59-14(A)   52C61-01   52C61-21   52C62-01   52C64-06   52C66-05   52C68-06  

Winbond

w83176-705 w83176-716

Monitoring ic's and floppy controllers from winbond are:

W83626-XX W83627-XX W83697-XX W83781-XX W83782-XX W83783-XX W83784-XX W83910-XX

If you have found one of these ic's, please have a look at the mainboard again. These IC's could not change the Frontsidebus! It includes all letters that follow the numbers. I simply write XX for any number of letters.

If your PLL is not listed above give me an e-mail with the address where to find it.