How to Clear TI-84 Memory
This guide shows you how to clear TI-84 memory the safe way: back up first, reset RAM, restore your apps, and fix the errors that send most students here.
No calculator in hand? Practice the same steps on our free TI-84 style graphing calculator in your browser.
Why Clear Your TI-84 Memory?
There are three good reasons to clear a TI-84. First, exams. The ACT, SAT, and AP tests require a cleared memory before you start. Second, errors. A full memory or a broken program can freeze the calculator. Third, a fresh start. If your calculator acts strange, a reset is the fastest fix.
But a reset deletes things. That is why this guide starts with a back-up. Five minutes of care now saves hours of lost programs later.
One more thing to know: the TI-84 has two kinds of memory. RAM is the working memory. It holds your current functions, lists, and programs. Archive is storage memory. It holds programs and data you saved for later. A RAM reset clears RAM only. A full reset clears RAM and archive.
Step 1: Back Up Before You Reset
Before you clear anything, save what matters. If you have programs or lists you wrote yourself, back them up to a computer or to another calculator.
The easiest way is TI Connect CE, the free software from Texas Instruments. Connect your calculator to a computer with a USB cable, open TI Connect CE, and drag your programs to your computer. If you do not have a cable, send the programs to a friend's calculator with the link cable.
If you have no cable and no computer, archive your important programs first. Archiving moves them from RAM to archive memory, where a RAM reset cannot touch them. Press 2nd, then MEM, choose 2: Mem Mgmt/Del, then 7: Prgm. Move to the program and press ENTER. A star appears next to its name.
Step 2: Reset RAM (the Safe Reset)
A RAM reset clears the working memory but leaves your archive and apps alone. This is the reset to use for exams and for most problems.
- Press 2nd, then MEM (the + key). The memory menu opens.
- Choose 7: Reset.
- Choose 1: All RAM.
- Choose 2: Reset. The calculator asks you to confirm. Choose 2: Reset again.
- The screen shows "RAM cleared" and returns to the home screen.
After the reset, your functions, lists, and variables in RAM are gone. Your archived programs and apps are still there. Your settings are back to the defaults: the mode is Func and the angle is radians. Check the mode after the reset — most school work needs degrees.
Test the calculator once after the reset. Type 2 + 2 and press ENTER, then graph y = x to see that the screen works.
Step 3: Reset All Memory (RAM and Archive)
Use this only when you want a fully clean calculator — for example, when you sell it, give it away, or when nothing else fixes a problem. This reset deletes your archived programs and data too.
- Back up first. Seriously. This step deletes archive content.
- Press 2nd, then MEM, then 7: Reset.
- Choose 2: Defaults if you only want settings back, or continue for a full clear.
- To clear everything, choose 1: All RAM first, then go back and choose 2: Archive. Confirm twice.
After a full reset, the calculator is like new. You will need to re-install any programs you want, and re-set the mode and window to your class settings. Built-in apps such as PlySmlt2 stay on the calculator, because they live in flash memory. Your own programs do not.
How to Unarchive a Program
This is the step most students search for. A program with a star next to its name is archived. It is stored safely, but it cannot run. To use it, you must unarchive it — move it back to RAM.
- Press 2nd, then MEM.
- Choose 2: Mem Mgmt/Del.
- Choose 7: Prgm. You see a list of programs. Archived ones have a * next to the name.
- Move the cursor to the program and press ENTER. The star disappears. The program is now in RAM and ready to run.
- Press 2nd, then QUIT to leave the menu.
If the calculator says there is not enough memory, unarchive only the programs you need right now, and leave the rest archived. RAM on a TI-84 is small — about 24 KB free on most models. When you finish a program, archive it again to free RAM.
You can also delete a program from this same screen. Move to it and press DEL. Deleting is final, so only delete programs you have backed up.
Restore Your Apps After a Reset
After a reset, your apps are still installed, but some may seem missing. They are not gone — the reset only cleared their settings. Press the APPS key to see the full list.
If an app is really missing, re-install it with TI Connect CE from your computer. The most common apps students re-install are PlySmlt2, Inequalz, and Cabri Jr. Download them free from the Texas Instruments website.
After restoring, set your mode and window back to your class settings. Press MODE and check the angle (degrees for most classes). Press WINDOW and set Xmin = −10, Xmax = 10, Ymin = −10, Ymax = 10, or press ZOOM and choose 6: ZStandard.
TI-83 vs TI-84: What Is Different?
The steps in this guide work on both the TI-83 Plus and the TI-84 family, but there are a few differences:
- Memory. The TI-84 Plus has more RAM and more archive space than the TI-83 Plus. The TI-84 Plus CE has the most of all. You will hit "not enough memory" less often on the newer models.
- Menu layout. The TI-84 has a slightly different memory menu, but the path is the same: 2nd, MEM, 7 for Reset, and 2nd, MEM, 2, 7 for programs.
- USB. The TI-84 Plus and CE connect to a computer with a standard USB cable. The TI-83 Plus needs a special silver link cable.
If you use an older TI-83, the archive step matters more, because its RAM is smaller. Archive programs you are not using right now, and keep only the current chapter's work in RAM.
For a full comparison of the models, see our guide to TI-84 vs TI-84 Plus CE and our best graphing calculator page.
Common Errors and How to Fix Them
- ERR:ARCHIVED — the program is archived. Unarchive it with the steps above.
- ERR:MEMORY — RAM is full. Archive or delete programs you are not using. Check RAM in 2nd, MEM, 1: About.
- ERR:VERSION — the program was made for a different calculator model. It may not run on yours. Look for a version made for your model.
- ERR:INVALID DIM — a list or matrix has the wrong size. Check the list in STAT, then Edit, and make sure every list has the same length.
- ERR:SYNTAX — a typing mistake, usually a missing bracket. Check the function in Y= and count the brackets.
- Calculator freezes — take out one battery for a few seconds, put it back, and turn the calculator on. If it still freezes, do a RAM reset.
- Low battery warning — change the batteries before a test. A low battery can cause strange errors.
Frequently Asked Questions
Press 2nd, then MEM, choose 2 for Mem Mgmt/Del, then 7 for Prgm. Find the program with the star next to its name — the star means it is archived. Press ENTER to remove the star and unarchive it. The program now runs from RAM again.
A RAM reset does not delete apps. Apps live in flash memory, and a RAM reset only clears RAM. A full reset that includes Archive also does not delete built-in apps, but it will delete your own programs and data stored in archive. Always back up first if you have work you want to keep.
ERR:ARCHIVED means you tried to run or edit a program that is stored in archive memory. Archived programs cannot run until you unarchive them. Go to 2nd, MEM, 2, 7, find the program with the star, and press ENTER to unarchive it.
Press 2nd, then MEM, choose 7 for Reset, then 1 for All RAM, then 2 for Reset. This clears RAM and returns the calculator to its default settings, which is what exam rules require. Do this the night before the test, and test the calculator once after the reset.