How old of an PC is it?Likely if it was made in 2001 - 1998 it's max ram ammount is 512 mb. Try taking the 128 out and leaving the 512 stick in there, Make sure that ram is compatible with that PC Likely PC133 in you're case, Good Luck.
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Both "have added" and "had added" can be correct, depending on the context. "Have added" is present perfect tense, indicating that something was added recently or is ongoing. "Had added" is past perfect tense, indicating that something was added before a specific time in the past.
The memory upgrade will speed up processes somewhat but it will be hardly noticeable.
If someone wants a calendar for the desktop of a computer then it is worth looking on websites such as wincalendar or tinnes. Both of these will enable a free calendar to be added to the desktop using simple instructions.
LET ME CORRECT THIS , -IAL CAN BE ADDED
512 MB = 0.5 GBHence after adding 1 GB RAM your laptop memory will be 1.5 GB.
Both "I have added" and "I added" are correct, but they are used in different contexts. "I have added" is present perfect tense, indicating an action that was completed recently or has a connection to the present. "I added" is simple past tense, indicating a completed action in the past with no specific connection to the present.
Desktop PCs tend to run faster and are capable of having more storage than laptop computers. As an added bonus, desktop computers are normally less expensive.
That is the correct spelling of "surcharge" (an added fee).
That is correct.
There are lots of clocks that can downloaded and added to your desktop. CNET has some, as do other websites. They also list download instructions.
The plural of metaphor is metaphors, without an E added.