Bad Ram Slot Fix
Recently one of our blog readers raised this question that there are some errors when buying a used slot machine. Though his query was related to his IGT Double Diamond model 96435800 reel slot machine which he had bought but here we are catering to some of the most common errors buyers face when they buy a real slot machine specially a refurbished ones. You can try to fix these errors by doing the following actions as given against each error. Also there are many superb videos online that teach you how to fix these errors.
EEPROM Device Error
EEPROM (electrically erasable programmable read-only memory) is user-modifiable read-only memory (ROM) that can be erased and reprogrammed (written to) repeatedly through the application of higher than normal electrical voltage. Unlike EPROM chips, EEPROMs do not need to be removed from the computer to be modified. However, an EEPROM chip has to be erased and reprogrammed in its entirety, not selectively. It also has a limited life – that is, the number of times it can be reprogrammed is limited to tens or hundreds of thousands of times. In an EEPROM that is frequently reprogrammed while the computer is in use, the life of the EEPROM can be an important design consideration.
A special form of EEPROM is flash memory, which uses normal PC voltages for erasure and reprogramming.
Here is the video how to fix this error
Error on door of slot machine
Assuming the other slots recognize RAM ok, and assuming the RAM that you are trying to insert in the bad RAM slot works fine in other slots, then the problem is with the motherboard or the RAM slot. If it’s the motherboard, there is nothing the average person can do on any modern motherboard. It is best just to get a new motherboard.
Fix Bad Ram Slot Macbook Pro
Many times when the display on the door indicates an error condition, open and close the door to reset the game and clear the error. Open the main door which clears the current game information and a “0” appears in the Coins Played window. Closing the door resets the game and the reels will spin and stop in their last valid position. The error code should clear and the digital display returns to normal game play.
- The worst 'defect' I've run into in a RAM slot was a couple of dust bunnies making contact marginal and resulting in obscure memory errors. Even if I could solder, I don't think I'd ever contemplate a repair on something as complicated as the RAM slot by anyone other than the ODM.
- In your guide to repair slot machines you will find some common repairs that can be carried out by you, some videos to watch as well. If your slot machine has some complex issue then obviously you require a qualified technician. Changing the Top Florescent Light. The top florescent light bulb is easily changed by following these simple procedures.
- Click the 'memory' tab and it will look something like this. If it says 'DUAL', ignore this post. Maybe look into new ram but its possible that your ram isn't bottle-necking you. If it, like for me, says 'SINGLE', reconfigure your ram sticks to look something like this with sticks having a ram slot in between.
- A Proper Way to Clean a RAM Stick. A lot of people just dump their computer’s memory stick, just because it isn’t working while testing their computer with a new RAM. Believe it or not but if you are having a brand memory plugged into your computer, then there is only 2% to 3% chance that you’ll lose your memory stick and need to buy a.
Error Code 12 Battery Voltage
To fix this error turn power off and then turn power on if the battery voltage has dropped below 2.9 V. Also replace ASAP due to possible RAM (Memory) corruption. Open / close door to clear and also Replace 3.6 V Lithium battery on CPU board.
Coin Errors
For coin errors see that comparitor is seated in all four acceptor clips and that acceptor does not have coin(s) jammed or the coin optics below comparitor is not blocked You can ensure toggle power switch is in activated position if installed.
Coin Out Tilt Hopper
Check for and clear any jammed coins in the coin out channel. Also see that the coins are not jammed behind hopper knife or see that the coin out optic sensor is not blocked by dust. If so you can replace hopper coin out optic.
Error in Extra Coin Out Hopper
Bad Ram Slot Fix Drivers
To fix this see that the hopper motor brake functions properly. Check the coin wiper/ knife for jams and if so adjust them if necessary.
Hopper Empty Error
This is the most common error that new slot machine owners will have because the cash out button was pushed and the number of coins in the hopper is less than the total credits to be paid out. You can open the main door and check the hopper for coin level (your hopper will not dispense all of the coins), refill and close the main door. You may have to do this several times for all of the credits to be paid out.
Reel Tilt Errors
You will find that there are reel tilt errors and for this see that whether the designated reel is misaligned or malfunctioning. Also check if the reel is not unplugged. You can switch connectors from one reel to another, determine if error follows change of connectors. Try replacing reel assembly or optics if error stays with bad reel. Also clear Ram and see if it works again.
Error Codes and Fixes
During the process of clearing error codes, you may encounter multiple 6x series errors. Here are few common ones and their fixes
CMOS RAM Error
Bad Ram Slot Fix Disk
This means Bad (or cleared) CMOS RAM data You can Press test button 3 seconds Error code 61-1 should now be displayed. Now close door, turn and release reset key once. Same for game data reset.
Bad Game EPROM or Data EPROM Error
Check circuit board and replace Game EPROM. For Data EPROM error check circuit board and replace Reel EPROM
Bad EPROM Device or Bad EPROM Data or Game Type Mismatch
Press self test switch for 3 seconds If error will not clear replace EPROM Also if the processor could not read or write to the named chip Press test button for 3 seconds Error code clears from display.
Most of the errors can be resolved with little help but many need technical knowledge. Remember that if you are on a warranty or not the place or online site where you purchased a used slot machine is there to assist you with trouble shooting and repairs. They can guide you over the phone or send some mechanical and technical person to do so.
sfbayzfs
Active Member
I have a lot of system building experience, and generally held the belief that bad RAM slots on motherboards are uncommon. The first one I encountered was a couple of years ago - I opened up a brand new ITX celeron board and I eventually discovered that one of the RAM slots was bad. The motherboard wouldn't boot with any RAM installed in one of the two RAM slots on the motherboard - remove RAM from that slot, and the system booted fine with RAM in the other slot only. (Of course I had been storing the board for long enough that it was out of warranty, but that's another story...) I suspected a bad solder joint or tin whisker somewhere on the bad RAM slot, but my soldering iron was misplaced a while ago, and a visual inspection of the underside of the board looked OK.
I have been testing more boards than I used to over the past year, and I have found a number of other boards which have bad RAM slots, so I was wondering how many bad RAM slots others here have run into on otherwise good motherboards.
Also, has anyone ever successfully fixed a bad RAM slot, say with a solder reflow?
So far, in terms of failure modes with bad RAM slots, either any RAM in that slot is not recognized and ignored, or else the system won't boot with any RAM in that slot, either locking up during POST or black screen before POST, sometimes with beeps. Any time I have had memtest rack up errors, I have eventually traced it to an actual bad stick of RAM, but has anyone else noticed bad RAM slots causing other symptoms?
On dual processor Xeon boards I have further findings:
- If the blue (primary) RAM slot in a channel is bad, that whole channel is unusable
- If the first blue slot for a CPU is bad, that CPU socket is unusable
- If a non-blue slot is bad, usually only that slot is bad