Broken Charger, Flashing sleep light, etc

Hi this is my first Apple Product and my first issue so I hope you guys can help me with it.
I was given a 15-inch Macbook Pro July 2010 as a gift for making it to college. Last night, after opening up my Macbook from a sleep state with the adapter plugged in, the charger light suddenly goes out. I've tested the charger and determined that it's dead. At the time, I was somewhat peeved but I understand that electronics can be erratic at times and I wasn't in dire need of it. This afternoon however, I forgot that the adapter didn't work so while working on homework it suddenly crashes. I ask my roommate if I could borrow his charger (knowing that it works on my MBP since I tested it the previous night) and when I attempt to turn it on I notice that the charging light is still green, the computer has its sleep light flashing at regular intervals and (I assume) the hard drive starting then dying.
So in summary: charger dies after waking MBP from sleep --> computer's battery goes to 0 charge --> roommate's charger that previously worked fine stays green but doesn't start/sleep light blinking/hard drive noise.
Any help would be appreciated since I have some unfinished homework.
Thanks

If a SMC reset does not bring life to your MBP, bring it in for service:
http://support.apple.com/kb/ht3964
Ciao.

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Fran

Do you have upgraded ram in your MBP? I believe that 3 beep signifies that your computer has failed ram tests on both banks of ram.
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Mid-2010 A1278
Serial: WQ********ATM
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I have noticed, If it is off the charger and you press power button, it will flash on then off just once.
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If a SMC reset does not bring life to your MBP, bring it in for service:
http://support.apple.com/kb/ht3964
Ciao.

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I reseated the RAM and swapped RAM, to no avail.
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Beep Definitions

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Welcome to Apple Discussions!
The flashing light tells you that you have a RAM problem:
http://support.apple.com/kb/HT2341
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Hi everyone.
I have been spending the last 2 hours trying to install this OCX Ram (2x1GB) into my PowerMac G5 Dual 2.5. Before installation, I just had the 2x512 Apple memory.
After installing the RAM following instructions from Apple's website, I turned on the computer and the power light just flashes twice, pauses, flashes twice, pauses, etc. I read that this could mean either the RAM is bad or installed incorrectly. I tried repositioning the ram in several different slots, but to no avail. Below is the link to the RAM from the site I bought it from. It seems like it would be compatible to me (A user review claiming to have used this model in his/her 1.8 1st Gen G5 claims it works fine).
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http://www.newegg.com/Product/Product.asp?Item=N82E16820146970
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1GB, 184-pin DIMM, DDR PC3200 memory module CT392184
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• NON-ECC • DDR400
• 2.6V • 128Meg x 64
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You need to reset-nvram when changing hardware configuration usually. Manufacturing changes so even Crucial sometimes runs into problems with compatibility. Where two batches don't work together.
If you have a G5 2.5DP, memory based on someone else's system, with slower fsb and different specs?
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Dear all,
I read the posts archived in these forums on the following issue but as there was no real guidance coming forward I thought to restate the issue I'm facing in case there is fresh knowledge on it.
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Hey All,
I finally decided to check here, as none of the fixes I attempted appeared to be working.
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Manufacturer:    SMP
Device name:    bq20z451
Pack Lot Code:    0000
PCB Lot Code:    0000
Firmware Version:    0201
Hardware Revision:    000a
Cell Revision:    0157
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Full charge capacity (mAh):    5845
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Disk Sleep Timer (Minutes):    10
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I have a white 2008 Macbook 2.4 Ghz. I recently installed 10.6 from scratch via Retail DVD and the Macbook worked fine. I updated via Software Update and installed all the updates that appeared. There was also a Firmware update to install, which I did after the update to 10.6.8.
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- I hear the startup chime
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Before the screen goes black, I can see that the boot seems to have completed okay. I have a Wifi connection and the date and time are correct.
If I go really fast, I can move the arrow to the Apple icon in the top bar and choose Shut down or Restart.
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From EZ Jim's link, there was another link to this info at the Apple site, re. Power on Self-Tests:
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My Macbook pro, (late 2010) sometimes will sleep and won't wake up. then the sleep light flashes.What's the problem?

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All of a sudden my MacBook pro shutdown last night and the sleep light started to flash about twice a second - continuously - and the display never comes on. I tried restarting a few times but no go. I took the battery out and left it out for the night.
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http://docs.info.apple.com/article.html?artnum=%20303083
http://docs.info.apple.com/article.html?artnum=58442

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hi,
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Press D during startup
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I don't think there's any easy fix for this. If you live close to an Apple Store or tech, you could ask them what they can tell you about it.

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Broken Charger, Flashing sleep light, etc

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