 Acer File Extensions |
Compaq Presario 1200 Series
Finding motherboard settings for Compaq Presario notebooks is at best hard work, with Compaq very reluctant to make the information public knowledge. The settings below were printed on the motherboard of a Presario 1256 and kindly e-mailed to me by David J Craig Jr.
Core Voltage
| 1 | 2 | 3 | 4 | |
|---|---|---|---|---|
| 1.8v | OFF | OFF | OFF | OFF |
| 1.9v | ON | OFF | OFF | OFF |
| 2.0v | OFF | ON | OFF | OFF |
| 2.1v | OFF | OFF | ON | OFF |
| 2.2v | OFF | OFF | OFF | ON |
I/O Voltage
| 5 | 6 | |
|---|---|---|
| 2.5v | OFF | ON |
| 3.3v | ON | OFF |
Clock Multiplier
| 7 | 8 | 9 | |
|---|---|---|---|
| 3 | OFF | ON | OFF |
| 3.5 | OFF | OFF | OFF |
| 4 | ON | OFF | ON |
| 4.5 | ON | ON | ON |
| 5 | OFF | ON | ON |
| 5.5 | OFF | OFF | ON |
Bus Speed
| 10 | |
|---|---|
| 66 | OFF |
| 60 | ON |
There is no Multiplier for 2.0x which AMD K6-2 reads as 6x, therefore the highest possible CPU Speed is 366. Basically 66mhz x 5.5. All 1200 series allowed for 333mhz AMD or 366 Mhz AMD CPUs.