How to measure voltage on ram slot

Every mainboard runs various kinds of ram, the mainboard line utilizing chipset 845 – 915 normally makes use of DDR 1 ram (there are additionally Chinese language mainboards that use 915 chipset however nonetheless run DDR2 ram), chipset traces from 945 and above use DDR2 ram. Utilizing DDR 2 ram, principal traces utilizing G41 chipset use DDR 3 ram (some G41 mains nonetheless use DDR2). And at the moment the most typical in restore is DDR 2 ram.

For comfort in repairing the pc mainboard, I present you learn how to measure the voltage on the ram slot within the quickest and best method to keep in mind. As a result of on the ram slot there are various enter voltage sources (vcc) every particular person has his personal method of measuring, and that is his method.

+ For DDR1 ram: Ram DDR1 has bus 133-400, has 184 pins and voltage (vcc) on ddr1 is 2.5V. On ram slot ddr1 there are voltage pins resembling: pins 7, 15, 22, 30, 38, 46…184. And my measurement is to measure pin quantity 184, the final pin of ram slot ddr1. If there may be 2.5v then the ram voltage supply is already there.

You discover the brief and lengthy slot in comparison with the anti-reverse mount, pin 184 is on the brief aspect of the slot and is on the opposite aspect with pin 1, normally on the ram slot with pins 1, 92, 93 and 184.

+ For ram DDR 2: Ram DDR 2 has ram bus 533, 667, 800, 1066. The availability voltage for ram 2 is 1.8v, this ram has 240 pins (pins) and in addition has voltage stage pins like : pins 51, 54, 170, 173, 236…

For DDR 2 ram it is rather straightforward to recollect. Look carefully on the brief slit and the lengthy slit. You measure on pin quantity 184 subsequent to the anti-reverse mount on the lengthy slot (situated on the left hand aspect) If there’s a voltage of 1.8v, the ability provide for the ram is okay. Or you may measure pins 236, counting from pins 240 and again is okay.

+ For DDR 3 ram:   DDR3 ram has bus from 1066, 1333, 1600. This ram additionally has 240 pins like ram 2 however the voltage provided to this ram is just one.5v and in addition has numerous voltage stage pins.

With this ram, you have a look at the lengthy slot, 1 foot from the anti-reverse mount, after which measure. Right here, my measurement is to measure on pin 170 of the ram slot (situated on the proper hand aspect, lengthy slot). If the measurement has sufficient voltage of 1.5v, the voltage supply for the ram is already good.

Above is learn how to measure ram slot voltage ddr1, 2, 3 that I usually use, it’s best to take note of know which route pin 1 is situated, as a result of there are some mains with lengthy slots on the left, principal there’s a lengthy slit on the proper. Simply measure like the three photos above and it is okay. Wishing you success.