W530 Power Adapters, 90W vs 135W Vs 170W

I Just got my W530 3720QM K2000m and i find it ridiculous that it cant use the 90W Adapter when idle and uses the battery. I Read threads of similar things with the W520, as well as some on the W510, and it appears that this used to work on the W510, 90W power adapter delivered the system in working condition with reduced performance. Now, i use my laptop as both a worstation and an entertainment laptop. if i were to go on a flight or be in a car, i sure wont be doing intensive VMware or 3d stuff, so 90W would be more than sufficient to drive the laptop as well as charge the laptop. i even have a Killawatt meter, i plugged in the 170W Adapter into it, and then ran my laptop while having the battery charged. the max power consumption that it pulled was 70W At the wall, surfing the web in optimus mode. Why cant we have a power saver mode to allow usage of the 90W adapter? or at least have the Choice between "battery only" - reduced performance anyways and "reduced performance AC/only"? At the very least it would avoid draining the battery for absolutely no good reason. My system idles at under 30watts anyways and that would leave 60W to do anything else, for example charging the battery at 40W - to give the total of 70W at the wall, from the 170W Brick. i Wish to see a revised bios to correct this or at least allow this. i dont believe its impossible or too complex to code. it was done on the W510, i dont see why it cant be done on newer, improved, smarter, more power controlled, 22nm ivy bridge based systems. and yes, if i wanted to use the full power of my machine i would have the 170W adapter, however, i currently own a T60, T61, T400 and now just added a W530, so i already have two docks + 4 90W adapters, + a 90W AC/DC Travel adapter. having to purchase another 170W adapter is kinda ridiculous, not to mention that its not compatible with any of my three other machines due to the fact that it is keyed. Please make a bios revision to address this issue. Thanks.

given my tests were done on a W530, i shall post my results here.
Bottom line: Lenovo power manager has no freaking clue as to how much power the system actually uses when its plugged into the wall. it cant even do basic arithmetic.
In any case, these are my findings. on the W530, with a i7 3720 QM, 32gb of 1600mhz ram, K2000m, these are my results on power consumption.
These tests were done to see if there was a logical explanation for not allowing the use of a 90W adapter at all on such a machine. bottom line is, if throtled, there is no reason not to. limiting the use to intel gpu only and not allowing turbo boost, effectively eliminates ANY possibility of using more than 90W when not charging the battery. The proof: The last two lines of this table. 60W Max power consumption at the wall under OCCT PSU Test when the cpu is limited to 2.6ghz, and the battery is removed/not charging. PSU Test stresses both cpu and gpu simultaneously.
The first battery of tests were to find out what tests should and shouldnt be performed, and what numbers were accurate. it was clear that power manager had no idea how to do basic math and later tests did not include it's random numbers. it only properly aproximates power consumption when on battery, not when on AC.
It was also concluded that using OCCT:CPU Resulted in the same power draw as CPU: Linpack, and thus OCCT CPU Was used to expedite number crunching.
Without futrher ado, here are the results: Maximum power draw AC No Battery 170W Adapter Quad core hyperthread Bluetooth Wifi OptimusKillawattPower managerCpu power Throtlestop (W)Cpu speed (GHz)Idle32-36165.61.4Linpack stock7334302.6Linpack Lenovo Turbo733330.32.6Linpack Throtlestop turbo10448503.4OCCT Turbo boost/stock7533272.6High Performance Profile OCCT Turbo boost/stock904142.63.4High Performance Profile Max Brightness, keyboard backlit OCCT Throtlestop1054842.53.4High Performance Profile lowest Brightness, keyboard off OCCT Throtlestop803742.83.4High Performance Profile Max Brightness, keyboard backlit OCCT PSU TEST1035253.93.3 K2000mKillawatt (W)Cpu power Throtlestop (W)Cpu speed (GHz) Idle294.80.8 OCCT CPU9042.43.4 PSU TEST11036.43.4 4000HDKillawatt (W)Cpu power Throtlestop (W)Cpu speed (GHz) Idle205.12.2 OCCT CPU8741.83.4 PSU TEST9453.13.3 4000HD, CPU Limited to Stock 2.6ghz Killawatt (W)Cpu power Throtlestop (W)Cpu speed (GHz) PSU TEST6029.52.6 OCCT CPU5826.42.6

Similar Messages

90w vs. 65w power adapters

We use the T61's and X61's with the port replicators for the T's and the Ultrabases for the X's. Is there any reason or need for the 90w power supplies? Please advse. Thank you.

Hello,
Welcome to the forums.
The difference between the 90W and 65W power adapters is quite simply the power output to the computer based on power consumption by the unit.
The T-series systems with dedicated video cards (NVidia or ATI) require the more powerful 90W power adapters - the 65W PAs will not provide sufficient power required by the dedicated video cards. Thus the 90W power adaper is the only choice for T-series systems with dedicated video cards.
The X-series, on the other hand, use an on-board graphics adapter without dedicated GPU and come with the 65W power supply simply because of the much lower power requirement. The X-series systems (whether docked in the X6 ultrabase or not), unlike the T-series sibblings, may use either the 90W or the 65W power adapters interchangeably.
Hope that helps
Message Edited by icantux on 06-13-2008 03:50 PM

W540 power adapters

I had T500 before, and I thought that if I buy converter from round to square tip, I could use old adapters with w540. I was quite naive
I have seen a lot of topics about modding 90w power adapters, so w530 thinks that it's 135w adapter and it works ok. Did anybody try anything similar with w540 power adapter?
Solved!
Go to Solution.

Beats me, I had the same problem when I bought an Advanced Mini Dock for an i7 T520 dGPU model machine a couple of years back, it came standard with a 90W adapter. But I simply explained to our Lenovo partner here that this was for a 135W machine, and they supplied the correct adapter with it. Simples.
For the new xx40 Ultra Docks, the 135W and 170W models have the same FRU, which is 04W3947, so my suggestion would just to ask your local Lenovo partner to supply it with a suitable adapter for your machine. They use the same power input, unlike the barrel plugs for the earlier models.
ThinkPad W540 (20BG) - i7-4800MQ/24GB // ThinkPad T440s (20AQ) - i7-4600U/12GB
ThinkPad T440p (20AW) - i7-4800MQ/16GB // ThinkPad Helix (3698-6EU) - i5-3337U/4GB
ThinkPad W520 (4282-W4Q) - i7-2720QM/32GB // ThinkPad T400 (2767-W1C) - P9500/8GB
ThinkPad T61 (7665-CTO) - T7700/4GB // ThinkPad T60p (8741-C2G) - T7400/4GB

Does T61 with integrated graphic card come with 65W power adapters?

Hi everyone, i am about to buy T61 without the graphic card.
Plz help!, anyone knows it comes with which type of power adapters?? say 65W or 90W
Thank you

integrated graphic card model should come with 65 w power adapter... while those Nvidia one has 90 w power adapter..

Alternative power adapters for the X220

As posted in other threads, there are problems using the "native" Lenovo power adapters with the X220:
- The 65W adapter does not supply enough power, which causes reduced performance.
- The 90W adapter is big and heavy.
- The Ultraslim 90W adapter causes erratic touchpad behaviour.
bender957 recommended the FSP NB L90 90W adapter that, according to his experience, does not suffer from any of the issues listed above.
Unfortunately, that post and others discussing that adapter were removed from the thread they were posted to as off topic, so I created this one to host the discussion.

The SNA 95 has arrived. It's about the same size as the new 90W Dell adapters, so maybe not as small as I was hoping. The Dell adapters struggle to put out 90W without getting dangerously hot though.
The output voltage is 19.5V with no load, so only 0.5V below the rated input voltage of the x220. I've yet to encounter a laptop that can't deal with ±1V. I just can't see anyway they could design a DC-DC converter so badly that it could only take 20V.

Direction on safe power adapters for iPods from US to Travel in France

Hello, I searched other topics found the Apple power adapter plug for the ipod discussesd this topic (which I do already have), but it did not SPECIFICALLY say that it will convert from US (110v) to Euro - France (220) volt. All the instructions from available power adapters (non-Apple) specifically say 'not for use with stereo or musical equipment.'
Help ! Can I just plug in my Apple ipod power adapter INTO a standard 110v to 220v converter and not worry about problems? Do I need to look for a special voltage adapter that works between certain amps or voltage ranges?
Best Buy, Radio Shack, Travel Smith and Sharper Image were NO help.
Looking not to fry my 60GB video ipod during a month long trip to Europe..
Help Please -- Au Secours! Jesse At One
Thanks and happy ipoding.
P.S. It is still next to impossible to find how to post a question. Instructions misleading, unclear and incorrect. oooppss...
Dell Prescision 370 Windows XP </span<br

hiya!
but it did not SPECIFICALLY say that it will convert from US (110v) to Euro - France (220) volt.
the accepted input power range is given in the "About the Apple iPod Power Adapter's Voltage Requirements" section in this document:
iPod: About the Apple iPod Power Adapter
... and there's info on the World Travel Adapter Kit given in the "Charging iPod around the World" section in this document:
Charging your iPod battery
if you feel so inclined and you have the time, you can submit feedback about your navigational difficulties here:
AppleCare Website Suggestions (improvements to fora, etc)
love, b

2 Power adapters...one glows amber to charge the other stays green??

Hello,
I have 2 power adapters for my ibook, the one that came with it originally & one I bought as an extra. They are both 45W apple ones. I have had problems with my ibook powering up & after replacing the dc-in board to no avail I have been told it's the logic board that needs replacing.
I have just got a replacement logic board which I am yet to fit. As it stands at the moment I have replaced the dc-in board but still won't charge the battery?
Also when I use the adapter that came with my ibook the light on the adapter glows green. When I plug the extra adapter in it glows amber but doesnt charge the battery?
I am just confused as to why one adapter glows green & the other glows amber with the same battery in?
I am also concerned to know if it would have been possible for the replacement adapter to have caused the logic board failure in the first place? As I am replacing the logic board soon I don't want the same mistake to happen again!
Anyone help??

All-right Master Meister, one last throw of the dice for me...
Do you have a friend or relative who knows how to use a multi-meter? If so, get them to check the voltage + current flow from the adapters when connected to the mains (iBook unattached).
Please do not try this yourself if you are unfamiliar with multi-meters; you could electrocute yourself or irreparably damage your equipment.
If you are reasonably competent with basic electronics, hook up a 12V car battery to one side of the charger and a 3V torch (with batteries removed) to the other side. If the bulb lights, this will tell you if the adapter is working.
I mean no disrespect: this is a potentially dangerous experiment and if you don't feel you are up to it, then don't try.
Instead, take the adapters to your local electronics store and pay them to check them for you.

Beware of some of the eBay power adapters

ok, I figured I would post this up, as I know the seller I bought from has sold a LOT of power adapters. Make sure to check the current rating on any power adapter before you buy it. I needed a couple power adapters for a few of the laptops that I have laying around. I bought an adapter that was listed as compatible with my M305, to check the quality before I bought more. Unfortunately, I had assumed that all of the specs were correct since the seller listed it as compatible, so I didn't check it. I had it hooked up to my L655 to test, and had no problems with it.
A few days later, I hooked it up to the M305, and started doing updates. I got pulled away from my office for about 20-30 minutes, and when I returned, there was a burnt plastic smell in the room. I searched the room, and noticed that the casing on the power adapter had melted. I unplugged it from the wall and the laptop, and moved it off the desk. The place where it was sitting on the desk was so hot that it burned my finger.
Checking the specs on the sticker that was now wrinkled up and peeling off, I found that the current rating of the power adapter was 3.42A. The OEM adapter for the M305(as well as a lot of other Toshiba laptops) is rated at 3.95A. I contacted the seller and let him know that the adapter should not be listed as compatible, but they of course did not respond to my email.
I checked the specs of several eBay power adapters, and I have found that there are several people selling adapters that do not have the correct ratings. So be careful with what you buy. If I would not have found that adapter when I did, it might have started a fire.
Qosmio X875 i7-3630QM, 32GB RAM, OCZ SSD Qosmio X505 i7-920XM, PM55, 16GB RAM, OCZ SSD
Satellite Pro L350 T9900, GM45, 8GB RAM , Intel 320 SSD (my baby) Satellite L655 i7-620M, HM55, 8GB RAM, Intel 710 SSD (travel system)

Who was the seller?
There's a lot of junk on ebay. Lucky the laptop wasn't damaged.
File a dispute, request a full refund and leave feedback
explaining what happened.

Understanding iPhone Charging and Power Adapters

I've been in a protracted discussion (now locked) regarding iPhone battery charging and whether it is harmful/helpful to use the iPad power adapter rather than the iPhone power adapter.
There are a lot of misconceptions related to iPhone charging and current ratings on the iPhone and iPad power adapters. As an electrical engineer, I'd like to clear up some misconceptions.
Apple supplies a power adapter, not a "battery charger," with the iPhone and iPad.
The iPhone power adapter supplies a constant 5V at up to 1A (rated–independent tests have shown that it can supply almost 1.8A).
The iPad power adapter supplies a constant 5V at up to 2 or 2.1A (rated).
The iPhone's battery charging voltage and current are regulated within the phone.
The iPhone's battery is rated at 3.7V. Charged with the raw 5V from the power adapter, it would be destroyed. Fortunately, the internal regulation in the iPhone prevents that.
The maximum current that an iPhone will draw from a 5V power adapter is right around 1 amp. It does not matter if the charger is capable of supplying more, that's the most that the iPhone will use.
Because of the internal charge regulation, the iPhone battery will not charge any faster on an iPad power adapter than on an iPhone power adapter.
Apple approves the use of the iPad power adapter with the iPhone. It is completely safe for that purpose and does not harm the phone or battery in any way.
A water analogy might make this much easier for people without electrical engineering background to understand.
Water pressure (psi) is analogous to voltage.
Water flow (gallons per minute) is equivalent to current flow (amps).
A faucet valve is analogous to the iPhones battery charging regulation circuitry.
A bucket's capacity (gallons) is analogous to a battery's capacity (amp-hours or AH).
Let's say you adjust the faucet to flow 1/10 of a gallon per hour. The five gallon bucket will take 50 minutes to fill up. Easy enough. But then...
You need a lot more water flow for a new sprinkler system.
You need a lot more current for your new iPad.
Since the water pressure is constant at 80psi, the only way to get more flow use a bigger supply line.
Since the voltage is constant at 5V, the only way to get more current is to use a higher current power adapter.
After installing the new higher capacity water supply line, you go out to your faucet and adjust it to 1/10 of a gallon per hour.
After plugging in the higher capacity iPad adapter, you plug in your iPhone and its charging regulation circuitry adjusts the current flow to about an amp.
The bucket still takes just as long to fill up.
The battery still takes just as long to charge.
The faucet is not under additional strain since the pressure is still 80psi.
The iPhone's battery charging circuitry is not under additional strain since the supply voltage is still 5V.
I hope that I've clarified this for those who want to better understand the subject.

As far as the battery status, the tiny little icon in
the upper right corner of the screen is somewhat
helpful, but while it is connected it does not
actually indicate the level of the charge or that the
Iphone is charging. I was hoping to find a more
informative screen that would give better battery
details. When you first connect the iPhone sometimes
I get a large battery icon that shows the level
visually Is there a way to navigate to this screen?
1. Press the top button to turn the display off if it's not off already.
2. Connect to a power source.
3. The screen should display a large battery meter in the middle of the screen that actually shows the state of charge, even if charging.
If you don't see this plugged into your Mac try the AC adapter that came with the phone. If you still don't see it take it to an Apple store.
best,
Larry
Lenovo T-60 Windows XP Pro

Foreign power adapters on US MBP?

I'm planning on buying a MacBook Pro in a few months, but I'll be moving from the US to the UK in September and was wondering if a MacBook Pro power adapter bought from Apple UK would be safe to use with my American MBP. I know that the world travel adapter kit would work, but I don't necessarily want to add anymore bulk to the power brick, which I hear is quite large. I was looking at the manual online and it says to only use the power adapter that came with the MBP, but if that was true than why are extra power adapters sold at all?
Thanks.

I can tell you for a fact that you won't have any problems. I use the US power supply in Europe and all I need is the adaptor to make the US plug into the local socket. As an additional option, I am sure that there will be a UK power supply if you don't want the hasle of using an adaptor.

Power adapters and worldwide compatibility - a lesson

The standard fare today in power adapters is such that the brick itself is compatible around the world. Indeed, the input power on a Lenovo AC adapter is rated from 100-240V and 50 or 60Hz - capable of operating on any power standard. The only catch is of course the wall plug in various countries. Again, most adapters have a removable adapter-to-wall power cord and if the manufacturer has a worldwide presence, you can likely order a country-specific power cord. Lenovo is such a company and you can find power cords for most geographies, like here. I'm preparing for a trip to New Zealand, my first out of the country, and wanted to be prepared to have my lifeline (aka ThinkPad) ready for the new locale. I looked up the power cord FRU (Field Replaceable Unit) number, called up IBM parts to verify availability, and placed the order. I was also delivering a new T61 to my mother-in-law and the U.S. power cord would be a burden down there. At $2.80 each plus a flat shipping fee, it was a no-brainer.
Australia/NZ Cord
As a side note, I ordered the adapters Monday night and they arrived Tuesday morning
I open the box to find a goofy-looking wall-plug (no offense... ) and what's this - a three-prong adapter-plug???
Australia/NZ plug
It looks a heckuva lot like the old T4x 16V power adapters and I figured I got the wrong FRU, dangit! After having gloated to Matt Kohut, our resident globetrotter, about my adapter-ordering-savvy, I mentioned in passing my situation. No sooner did my lips stop flapping did Matt whisk me away to a seemingly endless drawer in his desk, filled with dozens of black rectangles. Out of it came a seemingly normal looking 65W adapter.
Two very similar power adapters
Do you see a difference in the two adapters? I didn't at first either. Ah, there it is -
U.S. adapter vs ANZ adapter
It turns out that some countries still require an extra grounding wire in AC adapters and do the three-prong plug must be used. There I was thinking in my smugness that I could get away with a new power cord alone, not so!
I hope this helps anyone shopping for power adapters or cords soon. Thanks to Mr. Kohut I have a couple power adapters perfect for my mother-in-law's new T61, so she can compute around New Zealand without needing a silly plug adapter like us Yankees will use down there.
For reference, here are the part numbers in question:
2-prong 65W AC adapter: 92P1214
3-prong 65W AC adapter: 92P1153
Australia, New Zealand, Fiji, Papua, New Guinea power cord - 39M4960
65W AC adapter service parts page
Message Edited by Tim_Lenovo on 12-05-2007 12:50 PM
Tim Supples
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Got a question? Don't PM me, post it on the forum!
Lenovo Blogs
X60 Tablet SXGA+ primary, Z61p fully loaded workhorse

They are different because the two notebooks use a different power system. Your R51 uses the old 16V adapters and the T60 uses the newer 20V versions. Starting with the Z60 series, it was decided to upgrade our power delivery capabilities to meet the ever-increasing power demands of mobile computing.
You can read more information in a couple of our blog posts on the topic:
http://lenovoblogs.com/insidethebox/?p=51
http://lenovoblogs.com/designmatters/?p=23
Tim Supples
Lenovo Social Media
Got a question? Don't PM me, post it on the forum!
Lenovo Blogs
X60 Tablet SXGA+ primary, Z61p fully loaded workhorse

No car power adapters work!

I have have tried 3 power adapters sold at the Apple store and none work with the PowerBook G4. The saleperson was very helpful, but said that they have seen this before! (Green light comes and then it slowly blinks yellow or just stays green.)
I asked what the solution was and they suggested that I used the Apple 110v adapter with an inverter. That is what I tried first and it didn't work. They said buy a more powerful inverter like they sell at Lowes. So I bought one and with the adapter pluged in all is fine. Plug the adapter into the Mac and the plug is green for a few seconds and turns yellow. When it turns yellow the inverter goes into overload, screams, and cuts off!
I called the store back and they suggested I order the latest kinsington adapter for cars from the Apple store online. Now it doesn't work either and kinsington says they have not found a way to charge this model in a car! Is that true?
PowerBook G4 (15-inch Aluminum) Mac OS X (10.3.9)

Actually I've had an iGo Juice for over a year now, and it works just fine in the car, in an airplane, and in a wall socket. (I use it on a 15" alumunimun PowerBook G4, machine model 5,2.) Radio Shack sells them, though I bought mine at Macconnection.
Hope that is helpful.

Why can not you thought of improving the design of power adapters for mac book pro from damage so easily?

why can not you thought of improving the design of power adapters for mac book pro from damage so easily?

I congratulate you. you are very lucky because I hurt my less than two years taking all possible care. and have found that this has happened to many people more

Can I use other Apple USB Power Adapters with iPad

I am looking for a spare Apple Power Adapter to charge my iPad. I have an iPad (3rd Generation), which came with a 10W USB Power Adapter, Model A1357, output 5.1V. 2.4A USB Power Adapter. I have two other Apple Power Adapters 1) iPod Power Adapter, Model A1070, output 13V, .62A Firewire Power Adapter, 2) USB Power Adapter, Model A 1265, Output 5V, 1A,and 3) USB Car Adapter, Can either of the latter three Power Adapters be used to charge my iPad

Technically, yes, but they will trigger the 'not charging' because they're not giving out the 10W that your device wants. And charging with them will take significantly longer than the ipad charger.
I'd only use them as a 'shucks, left my iPad charger at home and I'm in a pinch' situation.
Your best bet would be to either get another iPad charger, or if you're trying to use one adapter for several devices, use the iPad one for the rest of your stuff.

MacBook and MacBook Pro power adapters cross compatible?

Greetings~!
I have a MBP, and I just bought my girlfriend a MacBook for her B-Day.
I realize there is a wattage difference between the two power adapters. The MBP is 85watts and the MB is 60watts.
So... to me, I could use the 85watt power adapter to charge the MacBook... but not the other way around.
Has anyone experienced using any other power adapter with the MacBook?

I'm sorry I can't find the reference article for this but I remember reading that as long as the batteries are present you are fine either way, noting that the MBP hooked to a 60 W supply will take a little longer to charge than you are used to with the 85. However, I'm pretty sure it also said you could see problems in the unlikely scenario that you had the 60 W connected to a MBP with no battery present. In that case the MBP would be asking for up to 85 but only getting 60. I don't know enough about it to be able to say that would actually be a problem.

W530 Power Adapters, 90W vs 135W Vs 170W

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