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Groups > comp.sys.mac.system > #59392 > unrolled thread
| Started by | Alek Trishan <alek.trishan@gmail.com> |
|---|---|
| First post | 2014-05-16 20:02 -0400 |
| Last post | 2014-05-16 22:04 -0400 |
| Articles | 20 on this page of 44 — 7 participants |
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Writer Needs Help Alek Trishan <alek.trishan@gmail.com> - 2014-05-16 20:02 -0400
Re: Writer Needs Help nospam <nospam@nospam.invalid> - 2014-05-16 20:20 -0400
Re: Writer Needs Help Your Name <YourName@YourISP.com> - 2014-05-17 12:57 +1200
Re: Writer Needs Help Savageduck <savageduck1@{REMOVESPAM}me.com> - 2014-05-16 20:24 -0700
Re: Writer Needs Help Savageduck <savageduck1@{REMOVESPAM}me.com> - 2014-05-16 20:29 -0700
Re: Writer Needs Help Alek Trishan <alek.trishan@gmail.com> - 2014-05-16 21:09 -0400
Re: Writer Needs Help nospam <nospam@nospam.invalid> - 2014-05-16 21:31 -0400
Re: Writer Needs Help Alek Trishan <alek.trishan@gmail.com> - 2014-05-17 12:34 -0400
Re: Writer Needs Help Your Name <YourName@YourISP.com> - 2014-05-18 10:33 +1200
Re: Writer Needs Help Tim Streater <timstreater@greenbee.net> - 2014-05-17 23:39 +0100
Re: Writer Needs Help Your Name <YourName@YourISP.com> - 2014-05-18 10:50 +1200
Re: Writer Needs Help Tim Streater <timstreater@greenbee.net> - 2014-05-17 23:54 +0100
Re: Writer Needs Help Alek Trishan <alek.trishan@gmail.com> - 2014-05-17 19:09 -0400
Re: Writer Needs Help Alek Trishan <alek.trishan@gmail.com> - 2014-05-17 19:06 -0400
Re: Writer Needs Help nospam <nospam@nospam.invalid> - 2014-05-17 19:09 -0400
Re: Writer Needs Help Alek Trishan <alek.trishan@gmail.com> - 2014-05-17 19:21 -0400
Re: Writer Needs Help Tim Streater <timstreater@greenbee.net> - 2014-05-18 00:36 +0100
Re: Writer Needs Help Your Name <YourName@YourISP.com> - 2014-05-18 14:08 +1200
Re: Writer Needs Help Tim Streater <timstreater@greenbee.net> - 2014-05-18 09:45 +0100
Re: Writer Needs Help dorayme <do_ray_me@bigpond.com> - 2014-05-24 08:10 +1000
Re: Writer Needs Help Tim Streater <timstreater@greenbee.net> - 2014-05-24 13:04 +0100
Re: Writer Needs Help dorayme <do_ray_me@bigpond.com> - 2014-05-25 08:32 +1000
Re: Writer Needs Help Savageduck <savageduck1@{REMOVESPAM}me.com> - 2014-05-17 16:43 -0700
Re: Writer Needs Help Alek Trishan <alek.trishan@gmail.com> - 2014-05-18 14:09 -0400
Re: Writer Needs Help Your Name <YourName@YourISP.com> - 2014-05-18 13:58 +1200
Re: Writer Needs Help Alek Trishan <alek.trishan@gmail.com> - 2014-05-17 19:06 -0400
Re: Writer Needs Help nospam <nospam@nospam.invalid> - 2014-05-17 19:08 -0400
Re: Writer Needs Help Alek Trishan <alek.trishan@gmail.com> - 2014-05-17 19:25 -0400
Re: Writer Needs Help Your Name <YourName@YourISP.com> - 2014-05-18 13:56 +1200
Re: Writer Needs Help Your Name <YourName@YourISP.com> - 2014-05-18 13:50 +1200
Re: Writer Needs Help Alek Trishan <alek.trishan@gmail.com> - 2014-05-18 14:10 -0400
Re: Writer Needs Help nospam <nospam@nospam.invalid> - 2014-05-18 14:26 -0400
Re: Writer Needs Help Alek Trishan <alek.trishan@gmail.com> - 2014-05-18 15:21 -0400
Re: Writer Needs Help nospam <nospam@nospam.invalid> - 2014-05-18 15:37 -0400
Re: Writer Needs Help Alek Trishan <alek.trishan@gmail.com> - 2014-05-18 15:56 -0400
Re: Writer Needs Help nospam <nospam@nospam.invalid> - 2014-05-18 16:07 -0400
Re: Writer Needs Help Alek Trishan <alek.trishan@gmail.com> - 2014-05-18 19:31 -0400
Re: Writer Needs Help nospam <nospam@nospam.invalid> - 2014-05-18 19:48 -0400
Re: Writer Needs Help Alek Trishan <alek.trishan@gmail.com> - 2014-05-18 20:44 -0400
Re: Writer Needs Help nospam <nospam@nospam.invalid> - 2014-05-18 21:07 -0400
Re: Writer Needs Help J Burns <burns4@nowhere.com> - 2014-05-18 23:42 -0400
Re: Writer Needs Help Your Name <YourName@YourISP.com> - 2014-05-19 09:38 +1200
Re: Writer Needs Help Your Name <YourName@YourISP.com> - 2014-05-17 13:43 +1200
Re: Writer Needs Help nospam <nospam@nospam.invalid> - 2014-05-16 22:04 -0400
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| From | Tim Streater <timstreater@greenbee.net> |
|---|---|
| Date | 2014-05-24 13:04 +0100 |
| Message-ID | <240520141304429503%timstreater@greenbee.net> |
| In reply to | #59660 |
In article <do_ray_me-B67AE4.08102524052014@aioe.org>, dorayme <do_ray_me@bigpond.com> wrote: > In article <180520140036140635%timstreater@greenbee.net>, > Tim Streater <timstreater@greenbee.net> wrote: > > > Doing backups with TM is so easy, as is > > restoring files when you need to, that anyone *not* doing it has to be > > a loony. > > That's me folks! (Supply Looney Tunes tune) Well that took you long enough :-) -- "If you're not able to ask questions and deal with the answers without feeling that someone has called your intelligence or competence into question, don't ask questions on Usenet where the answers won't be carefully tailored to avoid tripping your hair-trigger insecurities." - D M Procida, UCSM
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| From | dorayme <do_ray_me@bigpond.com> |
|---|---|
| Date | 2014-05-25 08:32 +1000 |
| Message-ID | <do_ray_me-5AA4FA.08320025052014@aioe.org> |
| In reply to | #59666 |
In article <240520141304429503%timstreater@greenbee.net>, Tim Streater <timstreater@greenbee.net> wrote: > In article <do_ray_me-B67AE4.08102524052014@aioe.org>, dorayme > <do_ray_me@bigpond.com> wrote: > > > In article <180520140036140635%timstreater@greenbee.net>, > > Tim Streater <timstreater@greenbee.net> wrote: > > > > > Doing backups with TM is so easy, as is > > > restoring files when you need to, that anyone *not* doing it has to be > > > a loony. > > > > That's me folks! (Supply Looney Tunes tune) > > Well that took you long enough :-) Fiji for a holiday, only had a new iPad, have not worked out about usenet on it yet, I guess there's Google. We had wifi in a resort on an island (talk about speck in the Pacific!), varying from .2MB to .01MB per sec! -- dorayme
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| From | Savageduck <savageduck1@{REMOVESPAM}me.com> |
|---|---|
| Date | 2014-05-17 16:43 -0700 |
| Message-ID | <2014051716430189879-savageduck1@REMOVESPAMmecom> |
| In reply to | #59446 |
On 2014-05-17 23:06:32 +0000, Alek Trishan <alek.trishan@gmail.com> said: > Tim Streater has written on 5/17/2014 6:39 PM: >> >> Does the OP's friend have an external drive they use for Time Machine >> backup? And if not, why not? > > Time Machine???? It seems obvious that your writer friend has the MBP 17'' as a *back up Apple typewriter* for her MBP 15'' Retina and has never considered data back up. -- Regards, Savageduck
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| From | Alek Trishan <alek.trishan@gmail.com> |
|---|---|
| Date | 2014-05-18 14:09 -0400 |
| Message-ID | <llat00$bph$1@dont-email.me> |
| In reply to | #59453 |
Savageduck has written on 5/17/2014 7:43 PM: > On 2014-05-17 23:06:32 +0000, Alek Trishan <alek.trishan@gmail.com> said: > >> Tim Streater has written on 5/17/2014 6:39 PM: >>> >>> Does the OP's friend have an external drive they use for Time Machine >>> backup? And if not, why not? >> >> Time Machine???? > > It seems obvious that your writer friend has the MBP 17'' as a *back up > Apple typewriter* for her MBP 15'' Retina and has never considered data > back up. Nope! She backs up to a 3TB HD and, I believe also to the cloud. She needs a hardware backup for the times her main computer is in the shop.
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| From | Your Name <YourName@YourISP.com> |
|---|---|
| Date | 2014-05-18 13:58 +1200 |
| Message-ID | <180520141358340426%YourName@YourISP.com> |
| In reply to | #59446 |
In article <ll8q21$3et$2@dont-email.me>, Alek Trishan <alek.trishan@gmail.com> wrote: > Tim Streater has written on 5/17/2014 6:39 PM: > > > > Does the OP's friend have an external drive they use for Time Machine > > backup? And if not, why not? > > Time Machine???? Time Machine is the software Apple includes on their computers for doing automatic backups to external drives.
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| From | Alek Trishan <alek.trishan@gmail.com> |
|---|---|
| Date | 2014-05-17 19:06 -0400 |
| Message-ID | <ll8q10$3et$1@dont-email.me> |
| In reply to | #59441 |
Your Name has written on 5/17/2014 6:33 PM: > In article <ll833l$t8e$2@dont-email.me>, Alek Trishan > <alek.trishan@gmail.com> wrote: >> nospam has written on 5/16/2014 9:31 PM: >> > In article <ll6cse$ij4$2@dont-email.me>, Alek Trishan >> > <alek.trishan@gmail.com> wrote: >> >> >> >> I forgot to mention that she also has a 15" MacBook Pro with Retina >> >> display. >> > >> > then she already has the replacement. >> > >> > why is she still using a 7 year old macbook if she has a 15" mbp-retina? >> > >> > copy the data off the 17" and safely dispose of the battery, then sell >> > the rest of it on ebay. >> >> The 17" is a backup for the 15". She's had hardware problems with the >> 15" that required her not having it for several days at a time. > > Well, she could be without either since you shouldn't be using the 17" > with the battery still in it and it really needs to be taken in for a > check and repair (which are may not be cost-effective to do). She said she would take it in. Wouldn't check and repair be more cost-effective than buying a replacement unit???
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| From | nospam <nospam@nospam.invalid> |
|---|---|
| Date | 2014-05-17 19:08 -0400 |
| Message-ID | <170520141908598617%nospam@nospam.invalid> |
| In reply to | #59445 |
In article <ll8q10$3et$1@dont-email.me>, Alek Trishan <alek.trishan@gmail.com> wrote: > Wouldn't check and repair be more cost-effective than buying a > replacement unit??? depends on the cost of the repair, and even if it's repaired, it's still 7 years old. new macbooks start at $899, although with a smaller display, but for a backup, that might be fine. it can always be used with an external display.
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| From | Alek Trishan <alek.trishan@gmail.com> |
|---|---|
| Date | 2014-05-17 19:25 -0400 |
| Message-ID | <ll8r56$9k4$2@dont-email.me> |
| In reply to | #59447 |
nospam has written on 5/17/2014 7:08 PM: > In article <ll8q10$3et$1@dont-email.me>, Alek Trishan > <alek.trishan@gmail.com> wrote: > >> Wouldn't check and repair be more cost-effective than buying a >> replacement unit??? > > depends on the cost of the repair, and even if it's repaired, it's > still 7 years old. She says she has insurance. > new macbooks start at $899, although with a smaller display, but for a > backup, that might be fine. it can always be used with an external > display. Smaller? :-) Apple sells a MacBook with a screen that's scarcely bigger than the one on my 30-year-old Keypro 10!!!
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| From | Your Name <YourName@YourISP.com> |
|---|---|
| Date | 2014-05-18 13:56 +1200 |
| Message-ID | <180520141356584621%YourName@YourISP.com> |
| In reply to | #59451 |
In article <ll8r56$9k4$2@dont-email.me>, Alek Trishan
<alek.trishan@gmail.com> wrote:
> nospam has written on 5/17/2014 7:08 PM:
> > In article <ll8q10$3et$1@dont-email.me>, Alek Trishan
> > <alek.trishan@gmail.com> wrote:
> >
> >> Wouldn't check and repair be more cost-effective than buying a
> >> replacement unit???
> >
> > depends on the cost of the repair, and even if it's repaired, it's
> > still 7 years old.
>
> She says she has insurance.
Greedy insurance companies will usually take the cheapest route, if
they don't wriggle out of paying entirely by utilising purposely
included legal loopholes in their small print ("You were were a blue
shirt on the day, so we can't pay out"). :-(
> > new macbooks start at $899, although with a smaller display, but for a
> > backup, that might be fine. it can always be used with an external
> > display.
>
> Smaller? :-) Apple sells a MacBook with a screen that's scarcely bigger
> than the one on my 30-year-old Keypro 10!!!
The cheapest MacBook Air does have only an 11" screen, next up from
that is the 13" MacBook Air or Pro. Depending on the applications she
uses, you could go cheaper and smaller to an iPad Air or iPad Mini as
the backup device.
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| From | Your Name <YourName@YourISP.com> |
|---|---|
| Date | 2014-05-18 13:50 +1200 |
| Message-ID | <180520141350562914%YourName@YourISP.com> |
| In reply to | #59445 |
In article <ll8q10$3et$1@dont-email.me>, Alek Trishan <alek.trishan@gmail.com> wrote: > Your Name has written on 5/17/2014 6:33 PM: > > In article <ll833l$t8e$2@dont-email.me>, Alek Trishan > > <alek.trishan@gmail.com> wrote: > >> nospam has written on 5/16/2014 9:31 PM: > >> > In article <ll6cse$ij4$2@dont-email.me>, Alek Trishan > >> > <alek.trishan@gmail.com> wrote: > >> >> > >> >> I forgot to mention that she also has a 15" MacBook Pro with Retina > >> >> display. > >> > > >> > then she already has the replacement. > >> > > >> > why is she still using a 7 year old macbook if she has a 15" mbp-retina? > >> > > >> > copy the data off the 17" and safely dispose of the battery, then sell > >> > the rest of it on ebay. > >> > >> The 17" is a backup for the 15". She's had hardware problems with the > >> 15" that required her not having it for several days at a time. > > > > Well, she could be without either since you shouldn't be using the 17" > > with the battery still in it and it really needs to be taken in for a > > check and repair (which are may not be cost-effective to do). > > She said she would take it in. > > Wouldn't check and repair be more cost-effective than buying a > replacement unit??? Depends on how much damage has been done - if the battery has damaged the connectors on the motherboard, the case structure, etc., then it's possible that it's almost cheaper to just buy a good second-hand or even new laptop, especially once you total up the cost of the parts and the labour.
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| From | Alek Trishan <alek.trishan@gmail.com> |
|---|---|
| Date | 2014-05-18 14:10 -0400 |
| Message-ID | <llat25$bph$2@dont-email.me> |
| In reply to | #59457 |
Your Name has written on 5/17/2014 9:50 PM: >> >> Wouldn't check and repair be more cost-effective than buying a >> replacement unit??? > > Depends on how much damage has been done - if the battery has damaged > the connectors on the motherboard, the case structure, etc., then it's > possible that it's almost cheaper to just buy a good second-hand or > even new laptop, especially once you total up the cost of the parts and > the labour. > Can't she run the 17" without a battery, from (as you would say) the mains?
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| From | nospam <nospam@nospam.invalid> |
|---|---|
| Date | 2014-05-18 14:26 -0400 |
| Message-ID | <180520141426382825%nospam@nospam.invalid> |
| In reply to | #59480 |
In article <llat25$bph$2@dont-email.me>, Alek Trishan <alek.trishan@gmail.com> wrote: > Can't she run the 17" without a battery, from (as you would say) the mains? she can but it will be roughly half its normal speed.
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| From | Alek Trishan <alek.trishan@gmail.com> |
|---|---|
| Date | 2014-05-18 15:21 -0400 |
| Message-ID | <llb17g$e18$1@dont-email.me> |
| In reply to | #59481 |
nospam has written on 5/18/2014 2:26 PM: > In article <llat25$bph$2@dont-email.me>, Alek Trishan > <alek.trishan@gmail.com> wrote: > >> Can't she run the 17" without a battery, from (as you would say) the mains? > > she can but it will be roughly half its normal speed. > Really? What causes that?
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| From | nospam <nospam@nospam.invalid> |
|---|---|
| Date | 2014-05-18 15:37 -0400 |
| Message-ID | <180520141537056444%nospam@nospam.invalid> |
| In reply to | #59482 |
In article <llb17g$e18$1@dont-email.me>, Alek Trishan <alek.trishan@gmail.com> wrote: > >> Can't she run the 17" without a battery, from (as you would say) the mains? > > > > she can but it will be roughly half its normal speed. > > Really? What causes that? according to apple, If the battery is removed from a MacBook or MacBook Pro, the computer will automatically reduce the processor speed. This prevents the computer from shutting down if it demands more power than the A/C adapter alone can provide.
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| From | Alek Trishan <alek.trishan@gmail.com> |
|---|---|
| Date | 2014-05-18 15:56 -0400 |
| Message-ID | <llb38i$rok$1@dont-email.me> |
| In reply to | #59483 |
nospam has written on 5/18/2014 3:37 PM: > In article <llb17g$e18$1@dont-email.me>, Alek Trishan > <alek.trishan@gmail.com> wrote: > >> >> Can't she run the 17" without a battery, from (as you would say) the mains? >> > >> > she can but it will be roughly half its normal speed. >> >> Really? What causes that? > > according to apple, > > If the battery is removed from a MacBook or MacBook Pro, the > computer will automatically reduce the processor speed. This prevents > the computer from shutting down if it demands more power than the A/C > adapter alone can provide. > So the AC adapter is deliberately crippled so they can sell more batteries??? I suppose it won't affect my friend who probably won't notice the change in speed. :-)
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| From | nospam <nospam@nospam.invalid> |
|---|---|
| Date | 2014-05-18 16:07 -0400 |
| Message-ID | <180520141607175169%nospam@nospam.invalid> |
| In reply to | #59486 |
In article <llb38i$rok$1@dont-email.me>, Alek Trishan <alek.trishan@gmail.com> wrote: > nospam has written on 5/18/2014 3:37 PM: > > In article <llb17g$e18$1@dont-email.me>, Alek Trishan > > <alek.trishan@gmail.com> wrote: > > > >> >> Can't she run the 17" without a battery, from (as you would say) the > >> >> mains? > >> > > >> > she can but it will be roughly half its normal speed. > >> > >> Really? What causes that? > > > > according to apple, > > > > If the battery is removed from a MacBook or MacBook Pro, the > > computer will automatically reduce the processor speed. This prevents > > the computer from shutting down if it demands more power than the A/C > > adapter alone can provide. > > So the AC adapter is deliberately crippled so they can sell more > batteries??? how do you get that? normally, the power consumption of the macbook is well under what the power adapter can provide. however, it's possible that a peak burst could momentarily push it beyond, in which case the battery will fill the void until it drops back down. it's just a brief spike. if there's no battery, it would shut off in that situation, which is what they want to avoid, no matter what. users do not like when computers shut down suddenly for apparently no reason. the computer is designed to run with a battery installed, so this is a huge edge case anyway. > I suppose it won't affect my friend who probably won't notice the change > in speed. :-) depends what she does with it. since you say she's a writer, chances are it will not come close to hitting peak power.
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| From | Alek Trishan <alek.trishan@gmail.com> |
|---|---|
| Date | 2014-05-18 19:31 -0400 |
| Message-ID | <llbfso$iet$1@dont-email.me> |
| In reply to | #59487 |
nospam has written on 5/18/2014 4:07 PM: > In article <llb38i$rok$1@dont-email.me>, Alek Trishan > <alek.trishan@gmail.com> wrote: > >> nospam has written on 5/18/2014 3:37 PM: >> > In article <llb17g$e18$1@dont-email.me>, Alek Trishan >> > <alek.trishan@gmail.com> wrote: >> > >> >> >> Can't she run the 17" without a battery, from (as you would say) the >> >> >> mains? >> >> > >> >> > she can but it will be roughly half its normal speed. >> >> >> >> Really? What causes that? >> > >> > according to apple, >> > >> > If the battery is removed from a MacBook or MacBook Pro, the >> > computer will automatically reduce the processor speed. This prevents >> > the computer from shutting down if it demands more power than the A/C >> > adapter alone can provide. >> >> So the AC adapter is deliberately crippled so they can sell more >> batteries??? > > how do you get that? > > normally, the power consumption of the macbook is well under what the > power adapter can provide. however, it's possible that a peak burst > could momentarily push it beyond, in which case the battery will fill > the void until it drops back down. it's just a brief spike. I never heard of that with a PC. Apparently, either PC OSes operate differently or the PC laptop manufacturers supply an adapter that can handle anything thrown at it. Can you tell me what kind of program might cause a spike in power needed? Thanks.
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| From | nospam <nospam@nospam.invalid> |
|---|---|
| Date | 2014-05-18 19:48 -0400 |
| Message-ID | <180520141948039894%nospam@nospam.invalid> |
| In reply to | #59495 |
In article <llbfso$iet$1@dont-email.me>, Alek Trishan <alek.trishan@gmail.com> wrote: > >> >> >> Can't she run the 17" without a battery, from (as you would say) the > >> >> >> mains? > >> >> > > >> >> > she can but it will be roughly half its normal speed. > >> >> > >> >> Really? What causes that? > >> > > >> > according to apple, > >> > > >> > If the battery is removed from a MacBook or MacBook Pro, the > >> > computer will automatically reduce the processor speed. This prevents > >> > the computer from shutting down if it demands more power than the A/C > >> > adapter alone can provide. > >> > >> So the AC adapter is deliberately crippled so they can sell more > >> batteries??? > > > > how do you get that? > > > > normally, the power consumption of the macbook is well under what the > > power adapter can provide. however, it's possible that a peak burst > > could momentarily push it beyond, in which case the battery will fill > > the void until it drops back down. it's just a brief spike. > > I never heard of that with a PC. Apparently, either PC OSes operate > differently or the PC laptop manufacturers supply an adapter that can > handle anything thrown at it. apparently they don't. <http://support.lenovo.com/en_US/detail.page?DocID=HT075965> Newer ThinkPads make use of high performance CPUs that may require more power than what the 65W adapter can provide while also supporting USB, Optical and other attached devices, especially in docked configurations. To prevent the potential for sudden system shut down if the power demand exceeds what the adapter can supply, the maximum clock speed may be limited when the system is operated on the 65W AC adapter and no battery is installed. > Can you tell me what kind of program might cause a spike in power needed? 3d gaming.
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| From | Alek Trishan <alek.trishan@gmail.com> |
|---|---|
| Date | 2014-05-18 20:44 -0400 |
| Message-ID | <llbk5u$6n6$2@dont-email.me> |
| In reply to | #59497 |
nospam has written on 5/18/2014 7:48 PM: > In article <llbfso$iet$1@dont-email.me>, Alek Trishan > <alek.trishan@gmail.com> wrote: > >> >> >> >> Can't she run the 17" without a battery, from (as you would say) the >> >> >> >> mains? >> >> >> > >> >> >> > she can but it will be roughly half its normal speed. >> >> >> >> >> >> Really? What causes that? >> >> > >> >> > according to apple, >> >> > >> >> > If the battery is removed from a MacBook or MacBook Pro, the >> >> > computer will automatically reduce the processor speed. This prevents >> >> > the computer from shutting down if it demands more power than the A/C >> >> > adapter alone can provide. >> >> >> >> So the AC adapter is deliberately crippled so they can sell more >> >> batteries??? >> > >> > how do you get that? >> > >> > normally, the power consumption of the macbook is well under what the >> > power adapter can provide. however, it's possible that a peak burst >> > could momentarily push it beyond, in which case the battery will fill >> > the void until it drops back down. it's just a brief spike. >> >> I never heard of that with a PC. Apparently, either PC OSes operate >> differently or the PC laptop manufacturers supply an adapter that can >> handle anything thrown at it. > > apparently they don't. > > <http://support.lenovo.com/en_US/detail.page?DocID=HT075965> > Newer ThinkPads make use of high performance CPUs that may require > more power than what the 65W adapter can provide while also > supporting USB, Optical and other attached devices, especially in > docked configurations. To prevent the potential for sudden system > shut down if the power demand exceeds what the adapter can supply, > the maximum clock speed may be limited when the system is operated on > the 65W AC adapter and no battery is installed. From the same source: "Solution: If maximum frequency operation is preferred in such situations, a 90W AC adapter should be used. " >> Can you tell me what kind of program might cause a spike in power needed? > > 3d gaming. I can assure you that she will never ever if-she-lives-to-be-150 be a 3D gamer. :-) Any others?
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| From | nospam <nospam@nospam.invalid> |
|---|---|
| Date | 2014-05-18 21:07 -0400 |
| Message-ID | <180520142107326006%nospam@nospam.invalid> |
| In reply to | #59498 |
In article <llbk5u$6n6$2@dont-email.me>, Alek Trishan <alek.trishan@gmail.com> wrote: > >> >> >> >> Can't she run the 17" without a battery, from (as you would say) > >> >> >> >> the mains? > >> >> >> > > >> >> >> > she can but it will be roughly half its normal speed. > >> >> >> > >> >> >> Really? What causes that? > >> >> > > >> >> > according to apple, > >> >> > > >> >> > If the battery is removed from a MacBook or MacBook Pro, the > >> >> > computer will automatically reduce the processor speed. This prevents > >> >> > the computer from shutting down if it demands more power than the > >> >> > A/C adapter alone can provide. > >> >> > >> >> So the AC adapter is deliberately crippled so they can sell more > >> >> batteries??? > >> > > >> > how do you get that? > >> > > >> > normally, the power consumption of the macbook is well under what the > >> > power adapter can provide. however, it's possible that a peak burst > >> > could momentarily push it beyond, in which case the battery will fill > >> > the void until it drops back down. it's just a brief spike. > >> > >> I never heard of that with a PC. Apparently, either PC OSes operate > >> differently or the PC laptop manufacturers supply an adapter that can > >> handle anything thrown at it. > > > > apparently they don't. > > > > <http://support.lenovo.com/en_US/detail.page?DocID=HT075965> > > Newer ThinkPads make use of high performance CPUs that may require > > more power than what the 65W adapter can provide while also > > supporting USB, Optical and other attached devices, especially in > > docked configurations. To prevent the potential for sudden system > > shut down if the power demand exceeds what the adapter can supply, > > the maximum clock speed may be limited when the system is operated on > > the 65W AC adapter and no battery is installed. > > From the same source: > > "Solution: If maximum frequency operation is preferred in such > situations, a 90W AC adapter should be used. " which costs more. most of the time 65w is sufficient, especially when it's extremely rare that a laptop is used without a battery. it's an edge case. anyway, macbook power adapters tell the macbook how much power they have, so it's possible that a lower end macbook could avoid throttling the cpu when a higher power adapter is used, but i don't know if it actually does that. also keep in mind that the batteries are now internal anyway so it's pretty much guaranteed that they'll never be used without a battery (not that it was particularly common before that). > >> Can you tell me what kind of program might cause a spike in power needed? > > > > 3d gaming. > > I can assure you that she will never ever if-she-lives-to-be-150 be a 3D > gamer. :-) > > Any others? sure. basically anything that cranks the fans, but it's not just running a particular app that does it. it's more along the lines of the above scenario, where not only is the cpu/gpu doing a lot, but the optical drive is in use and there are various attached devices, such as bus-powered hard drives, the display is at full brightness, music is playing, etc. it all adds up.
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