150w psu for sager 8690

im wondering where i could get a working 150w psu for my sager 8690.
tried searching ebay and no go.
any suggestion?

 

Maybe this:
Laptop Chargers|APA05US| by Targus

targus APA05

It's 180W, comes with several tips and I think is pretty common (I have seen a few on ebay).

Don't know if any tips fit your notebook though, but there is a good chance.

 

These have been discontinued, but here is one on ebay that includes the tips.

Targus APA05US Home/Office 180W Universal AC/DC Adapter - eBay (item 120655342739 end time Jan-01-11 13:09:25 PST)

 

thanks guys. im kinda apprehensive about using a 180watt as the power maybe a bit too much for the 8690's internal power circuitry. id rather stick to a 150 or maybe a 160w psu.
i found this on a singaporean site:
Li Shin 0226A20150 AC Power Adapter

would it work? supplies 20v at 7.5a. my present 120w is 20v at 6a. shouldnt be a problem right?
also wondering if it has the right plug/tip

 

I bought 3 of these off this guy, they work flawlessly. Try to stay away from changable tips.

 

I wouldn't worry about it. The internals only draw what they need. I have looked at the circuits and they are designed well enough to handle whatever you could throw at them with your configuration.

The supply that Johnnyflash linked to looks good, I would trust that more than the Targus and those changeable tips.

 

thanks guys, plus one.
ill consider the 180w if the 150w i found doesnt work out.
so does anyone know wether the 150w i posted will work?

 

Only too much voltage will damage things, not too much wattage.

And yes, it does not have to be 20v, 18-22 or so will work. 50$ is a bit much i think. if you dont mind soldering a different plug onto the end then you can save a lot of money DELL 19.5V 7.7A 150W XPS POWER ADAPTER CHARGE SUPPLY XV - eBay (item 390255156413 end time Dec-21-10 15:35:14 PST)

 

hi johnny, that tip looks differnt from that on my sager 8690.
are you sure this would work?
thanks

 

i dunno why u guys are willing to pay an extra 25$ for a tip LOL

yea, thats the right tip, 2.5x5.5mm. it just looks smaller because its dwarfed by the huge psu

 

Did you check the shipping cost? I looked at PCHub before and the shipping alone was almost as much as the supply. The thing I don't like about that particular model is the right angle connection. (more of a personal thing, nothing wrong mechanically or electrically)

Personally I like to have the connector molded on and factory wired, they will be more reliable and the connectors are of better quality.

 

yes their fast shipping goes from 15usd.
however i friend who work in singapore and will be home for the holidays. i was gonna ask her to pick it up for me in the retail outlet.
i just wanted to make sure wether the tip was the right one.

 

others are correct, you an even use a 1000W PSU for your 8690 as long as you have the correct voltage, nothing will be damaged. the load (in this case the laptop) will only draw what it needs.

 

iirc there were a few posts by ss some months ago about him modding the internals/'backplate' of the 8760 to accommodate the bigger power draw of a 180w psu.
with this in mind, and a tendency to push gpu and cpu o/c given the right amount of cooling and power, one could theoretically burn out some capacitor in the 8690.

 

hmmm, what does the backplate have to do with power draw? i'm not sure if i'm following.

with overclocking, everything is at risk. i'm assuming that people who posted in this thread saying that wattage will not damage your laptop are assuming that you won't do overclocking.

 

no, we are not assuming, we know full well he is overclocking and overvolting.

its highly unlikely that anything will burn out your internal notebook components. thats why some GPUs downclock when you try them on laptops they werent meant for.
there is a lot of internal protection from totally overpowering everything.

 

alright. then in that case, i've read somewhere in the 860cu thread that there would indeed be a possible damage when using a higher wattage psu for that matter.

 

Guys,

The biggest worry would normally be the MOSFETS and even in the 8690/8760 it’s not a problem. I looked at the data sheets and even calculated with current draw’s at a level that would be beyond what you could draw and the power in well within the specifications. Clevo has done a nice job of over rating the power management part of the circuits. As far as the capacitors, I looked at those as well, I just don’t see anyone that sticks out as a problem. The main concern with those are heat and ripple currents (AC currents), and as you know the cooling inside is good. If the rest of their design holds true it has been over rated nicely as well. I don’t have the time or inclination to write a more detailed response, but the worries about using a higher wattage supply are unfounded. As long as the voltage is 19-20V your fine.

 

@kevin
i think he meant the buckplate(?) where the psu roundbarrel tip attaches to the laptop.

@ niff and othonda
thats good to know that there is little risk of damaging internals with a higher rated psu.
i am indeed actually thinking of getting the cheaper hp psu niff has suggested. are the wires internally color-coded? cant i just wrap them around and cover with duct tape instead of actually soldering them?

 

Yes the wires are color coded, be very careful to get the right wires to the right terminals, there is NO protection against reverse polarity of the connector; you will fry your machine if you get it backwards. The second question you MUST solder the wires. The reliability of your connection is very important. Intermittent spikes of power could be damaging to the internals. Also with the currents we are talking about you need to have the lowest possible impedance of the connection so soldering is a must.

 

thanks for the info!

 

It's both. I've sinked the FET's and caps at the power control, and at the CPU. The W880CU backpanel isn't needed; it only allowed me to put taller heatsinks.

The capacitors are the least of your concerns. I just sinked them because of one of my motto's, "because I can."

Deep down, half of the reason real men overclock their rigs is to flex their alpha wolf, albeit the hidden rule of not distinctly stating so. There is a risk by even just touching the HDD with your bare finger. It's just a psychological aspect of to what level of comfort does one have in his intellectual ability to do things. Most Mac users I know on campus are too yellow to replace the HDD on their Macbooks. Their level of comfort is down in the gutters. If one doesn't have the intelligence or resources (time, effort, money) to do so, then he should stay in the baby zone and enjoy factory settings.

I don't know where this myth of using a larger PSU is bad for the notebook. You are just removing one more bottleneck by investing in a larger PSU. I've been saying this too many times already: your computer will not draw more power than it can handle. If the rails for the CPU or GPU socket cannot supply more power to the component because of confounding constraints (most of the time heat rather than overcurrent), then the component will hiccup resulting in the anomalies that we know and love as errors (BSOD's, artifacts, etc.). Then that is where we pull back on our overclock and begin to set our range of safety like any other sane person would. There are dozens of other possible factors but you get the idea. The more you overclock, the higher the thermal resistance coefficient gets. In other words, your max temperature ceiling at which your components will become unstable will get lower.

I love how the word "damage" is thrown around. I "damage" my notebook everyday by pressing the power button. Instead of calling it damage, let's all call it shortening lifespan. That way it doesn't sound like you're abusing your notebook like a stray dog.

JohnnyFlash's recommendation is the only one I recommend in this thread, including these. http://shop.ebay.com/?_from=R40&_trksid=p4712.m570.l1313&_nkw=0415B19180&_sacat=See-All-Categories. You guys already know the usual suspect questions: barrel tip, blah blah blah, yes it fits, blah blah blah, voltage, blah blah. It's been hammered and buried too many times.

 

thanks for clearing up some stuff ss.
i thought you posted you posted a warning on using too high a psu some months back and apparently i was mistaken.
cheers on the recommendation.

 

Great explanation Sov Sun. In the end, the fact that the "notebook will never draw more power than what it was designed to" still holds true.

 

*Wrong Post.

 

I did, but it wasn't about the PSU. It was a warning directed towards the greed in the users themselves. The PSU is just sitting there, but if an idiot decides to get real and push the envelope where his notebook is hitting high temps on a daily basis, then it's his fault. The larger PSU just allowed the computer to keep on rolling until the unstable point of the CPU/GPU/etc itself instead of the unstable point of the PSU. Like I said above, you're just removing a bottleneck. I wish people can upgrade the computer they have sitting on their two shoulders. Oh yeah! I remember what that's called: eating a healthy diet, regular exercise and calisthenics, and thinking before one speaks unlike Heathkidd who makes himself look like a moron to the whole Clevo forum.

This is the first post I've made on my iPhone, and I now know how difficult it is to read and type on such a small device. Nonetheless, it's time for forum etiquette 101 as it was a pain in the pooper for me to read through my own big block previous post as well as the long unnecessary quote of my own post just to find everyone else's posts.

http://www.mozilla.org/about/forums/etiquette.html

In short: quoting adjacent posts (especially big ones) is unnecessary since one can just look right above, and if need be trim it down. My eyes and my finger greatly appreciates it.