Aspire 3680
Aspire 3680
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 Acer Aspire 3680 Laptop Notebook PARTS OR REPAIR AS IS  US $40.00
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 Acer Aspire 3680 INTEL Laptop MOTHERBOARD US $69.99
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 Acer Aspire 3680 laptop DVD ROM CD RW Combo 14LCD US $1.75
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 Acer Aspire 3680 5570 5570Z 5580 LCD cable DD0ZR1LC008 US $5.00
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 29 Acer Aspire 3680 141 160GB Intel Ubuntu Linux Wireless Laptop Notebook US $139.99
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 Acer Aspire 3680 Plastic Base Case US $9.00
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 Acer Aspire 3680 Top Plastics Cover with Touchpad US $9.00
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 Acer Aspire 3680 Notebook US $189.00
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 Acer Aspire 3680 3680 2682 Laptop Notebook Computer for Parts or Repair NR US $9.99
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 Acer Aspire 3680 Laptop Notebook US $19.99
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 ISUES Acer Aspire 3680 Laptop ISSUES US $5.59
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How do you get passed HDD Password on Acer Aspire 3680-2354?
Alright...so I can't seem to remember the pw to my old laptop and this HDD pw is killing me.
I have tried the latest ver. of Ubuntu and it does not load.
What do I do? :p
I'm not one to go out and spend money on this kind of thing and I
shouldnt have to since I paid a lot of money for my laptop.
Any help is much appreciated.
Alright...so I can't seem to remember the pw to my old laptop and this HDD pw is killing me.
I have tried the latest ver. of Ubuntu and it does not load.
What do I do? :p
I'm not one to go out and spend money on this kind of thing and I
shouldnt have to since I paid a lot of money for my laptop.
Any help is much appreciated.
It is also Windows vista if that makes a difference from XP.
There are a couple of ways to encrypt entire hard drives:
(1) If only the installation and the files are encrypted, you may need to find an exploit for the software used to do the encryption. If you really can't remember it, you may just need to wipe out the HD and reinstall Ubuntu/WinXP on it.
(2) If the physical hard drive is actually password protected and a simple BIOS exploit is not available, there is almost no way to break through it without spending a LOT of time on it. Most hard drive encryption uses 128-key crypto, which means it will take years for you to get through. You could try removing the HD and attaching it as a slave to another computer to see if you can read the data. Also, if the encryption is BIOS-based, resetting the BIOS (by removing the Cmos battery for a few days) might get rid of the lock.
New battery technology seeks balance between density and discharge durability
Recent battery developments in both novel lithium salt and lithium air show promise for addressing the power density and high charge cycle capacity needed for today electric vehicles.
Researchers at Huazhong University of Science and Technology in China are exploring the use of a novel lithium salt to improve the high-temperature resilience of lithium-ion cells while scientists at the Savannah River National Laboratory are developing energy dense lithium air batteries.
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LiFNFSI a candidate to overcome rapid capacity fading?
The novel lithium salt, (LiFNFSI), is being used as a conducting salt in the electrolyte of batteries. The researchers claim that current tests show better thermal stability than LiPF6 along with high conductivity, comparable to LiClO4, and good electrochemical stability. In addition, it is non-corrosive to aluminum.
At both room temperature (25 °C) and elevated temperature (60 °C), the graphite/LiCoO2 cells with LiFNFSI have exhibited better cycling performances than those with LiPF6.
Particularly, the researches noted, at 60 °C, the capacity fading rate of the LiFNFSI-based cell without any additive is 37% after 100 cycles, while the cell with LiPF6 fails rapidly.
These particular properties, the researchers claim, make LiFNFSI an attractive candidate to overcome the rapid capacity fading of lithium-ion batteries at elevated temperatures.
A battery that holds 5 to 10 times as much energy as lithium-ion?
Scientists at the Savannah River National Laboratory have been testing lithium air, a technology that they suggest could create batteries with 5 to 10 times the energy capacity per weight of current lithium ion batteries and double the amount per volume.
"No other battery has that kind of energy density, so far as we know," says Ming Au, principal scientist.
Lithium air batteries use a lithium anode and a cathode comprised of a porous material that draws oxygen from the air. The lithium combines with oxygen to form lithium oxide and release energy. Because the oxygen comes from the ambient air, the cathode is lighter than that of a li-ion battery, giving lithium-air batteries far higher energy density.
The lab has demonstrated a coin-sized rechargeable lithium-air battery with a density of 600 mAh/g, far higher than the 100 to 150 mAh/g of lithium-ion batteries.
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Obstacles do remain in the development process, the biggest being the limited number of times such batteries can be cycled. The lithium-air battery that Mr. Au's team developed can be recharged only 50 times or so. Researchers do hope to speed up the recharging process but Au noted that "rechargeable lithium-air batteries probably won't be commercially viable to many years."
Catalyst may be the key
The challenge with lithium air lies in converting the lithium oxide back into lithium, which currently can be done only with catalysts. However, last year, researchers at the Massachusetts Institute of Technology discovered that electrodes that use gold or platinum as a catalyst are more efficient than carbon electrodes.
The MIT team will be studying the chemistry of the charging and discharging processes to determine what compounds are produced and how they react with others in the system. Through their research, they hope to determine the optimal catalyst for use in lithium-air batteries.
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