MS-6905 CPU Converter Board
- Converts socket-370 Intel Celeron processor for use in a Slot 1 motherboard
- Supports Mendocino CPU core with 128K 1:1 backside cache
- Offers price/performance ratio superior to P-II
- Direct control of CPU core voltage
- Dual jumper to enable SMP capability
- Ability to manually set bus speed (66/100 MHz)
Overclocking Jumper (J1):
When the J1 jumper is shorted, the board automatically detects whether to use a 66MHz or 100MHz FSB. However, when the J1 jumper is open, the MSI adapter "tricks" your motherboard into thinking that the Celeron is actually a 100MHz CPU, and the motherboard accordingly raises the bus speed to 100MHz. Many motherboards allow you to control the FSB directly on themselves, however, there are some motherboards, that when they detect a Celeron processor, will automatically lock the FSB at 66MHz (especially Intel's own motherboards). With Slot-1 Celerons, it was necessary to perform the "B21 trick" (which involves taping some of the pins on the Celeron) to get your CPU to run at 100MHz on those motherboards. However, with MSI's adapter, all you have to do is open the J1 jumper.
Note: This jumper is only for the purpose of overclocking. MSI does not guarantee that the mainboard, CPU , or other components
will function properly under these conditions.
Single/Dual Processor Jumper (J3):
The dual processor jumper of the MSI MS-6905 is probably the most attractive feature of all.
Before the Socket-370 Celerons existed, the only way to make a dual-Celeron system was to perform a complex set of modifications to your Slot-1 Celerons, which involved drilling, soldering, and a whole lot of other dirty work. With the introduction of the Socket-370 Celeron, all you had to do was drop the Celeron into a converter card, and solder on one wire, and your CPU would be capable of dual-processing.
MSI has now made making a dual-processor Celeron system even simpler - simply drop your Socket-370 Celeron into their new MSI MS-6905 adapter, short the J3 jumper, and your Celeron is now dual-processor capable - no modifications necessary.
The MSI MS-6905 makes it incredibly simple to create a dual-Celeron system, which will cost several times less than a dual-Pentium II system, and will offer virtually the same performance.
Note: MSI does not guarantee that the mainboard, CPU, or other components will function properly under these conditions.
Voltage Jumpers (JV0,JV1,JV2,JV3,JV4):
The third and final major feature of the MS-6905 is the ability to manually select the CPU core voltage. Sometimes, all you need to get your CPU running at that overclocked is a little extra "juice", or voltage. Unfortunately, all motherboards (besides a select few from ABIT) do not allow you to manually change the core voltage of a Celeron processor. There are of course ways around this, however, they all involve, again, taping up pins, and doing a lot of hard and tedious work which could end up damaging your CPU.
Luckily, MSI's MS-6905 features a set of jumpers which allow you to directly manipulate your Celeron's core voltage.
The MS-6905 supports the following core voltages:
1.8V 1.85V 1.9V 1.95V 2.0V 2.05V 2.1V 2.2V 2.3V 2.4V 2.5V 2.6V
The adapter also features an "auto" voltage position, which basically just automatically detects the proper core-voltage of your Celeron, and sets it to that.
Note: These jumper should always be set to Auto by default. MSI does not guarantee that the mainboard, CPU, or other components will function properly when the voltage is manually set.