i tried to set the fbs from 100mhz to 165 and the screen went black......any suggestions

CPU Properties
CPU Type Intel Celeron 4A, 2500 MHz (6.25 x 400)
CPU Alias Northwood-128
CPU Stepping D1
Original Clock 2500 MHz
L1 Trace Cache 12K Instructions
L1 Data Cache 8 KB
L2 Cache 128 KB (On-Die, ATC, Full-Speed)

CPU Physical Info
Package Type 478 Pin uPGA
Package Size 3.50 cm x 3.50 cm
Transistors 55 million
Process Technology 6M, 0.13 um, CMOS, Cu, Low-K
Die Size 131 mm2
Core Voltage 1.475 - 1.55 V
I/O Voltage 1.475 - 1.55 V
Typical Power 38.7 - 82 W (depending on clock speed)
Maximum Power 49 - 103 W (depending on clock speed)

CPU Manufacturer
Company Name Intel Corporation
Product Information http://www.intel.com/products/browse/processor.htm

CPU Utilization
CPU #1 8 %
Motherboard Properties
Motherboard ID 07/16/2003-SiS-650-6A6IXG0ZC-00
Motherboard Name Gigabyte GA-8S650GXM

Front Side Bus Properties
Bus Type Intel NetBurst
Bus Width 64-bit
Real Clock 100 MHz (QDR)
Effective Clock 400 MHz
Bandwidth 3200 MB/s

Chipset Bus Properties
Bus Type SiS MuTIOL
Bus Width 16-bit

Motherboard Physical Info
CPU Sockets/Slots 1
Expansion Slots 3 PCI, 1 AGP
RAM Slots 2 DIMM
Integrated Devices Audio, Video
Form Factor Micro ATX
Motherboard Size 210 mm x 240 mm
Motherboard Chipset SiS650GX
Extra Features EasyTune 4

Motherboard Manufacturer
Company Name Gigabyte Technology Co., Ltd.
Product Information http://tw.giga-byte.com/MotherBoard/Products/Products_NewProduct_List.htm
BIOS Download http://tw.giga-byte.com/Motherboard/Support/BIOS/BIOS_List.htm

default------------------->pro runs at 2.5Ghz
cpu 100mhz
ddr 333


I uped to------------------->pro runs at 2.99Ghz
cpu 120mhz
ddr 360


anymore and my system with either not boot or give me errors and freeze
any suggestions.?? and i checked the temps they stay below 50 celcious

Lock your agp/pci Bus. And dont just add 65mhz to your bus. Try uping it in intervals.

You may have hit the wall as far as you can go with your setup.

You could try upgrading to some seriously high quality RAM, that has been designed to be run at higher than average speeds. Personally I recommend Corsair but there are plenty of alternatives.

The other thing you could try is running a little more voltage through the processor. This IS DANGEROUS though (Well, overclocking is really). Too much voltage and your processor will fry.

There is still a chance that you won't get any higher, some setups just won't go much further.

And what copyright said ;) .