vincent4131 wrote:
請問電池模組取出後,...(恕刪)
你要有wwan卡在裡面，插sim卡進去才有作用阿
jump_huang wrote:
看樣子降速的問題,是...(恕刪)
那小弟比較慘... 接電源後也是800MHz... 低速行駛
更新BIOS後已經有改善...
但透過CPUZ觀察...
待命狀態 800MHz...
執行程式 2.2GHz
Turbo Boost 應該要到3.3GHz 吧!?
重開機F12進入BIOS
把 Intel Speedstep 關掉，並把CPU Power Management 關掉
再開機... 用CPUZ 看... 維持在2.2GHz...
如何Turbo Boost 到3.3GHz
桌機:i5-2400雙核+16G+SSD 80G intel 320系列+Quadro 600 1G
筆電:i7-2720QM+ 4G+HD 500GB 7200rpm+Quadro 1000M 2G
i5-2400雙核 待命 3.1GHz,轉檔時 3.39GHz-3.48GHz
目前轉檔輸i5桌機一整個不舒服
貓.電腦.不思議
kyo6347 wrote:
那小弟比較慘... ...(恕刪)
小弟先謝謝您的回報~
金害，好不容易鼓起勇氣正要出手下單之際，就又出現連插著AC都會降速的回報
，真是的怎說才好，有點好奇降速的問題，看來幾乎確定應該是聯想設計的系統問題(不然別家都沒發生)，為何諸位大大在交機的第一時間(如果連ac使用環境下)不能發現嗎?這不構成退機的理由嗎?難怪(兩個月前左右)曾見有人露天45K賣出55K(W520)的機子，不知是否有關連?
是真的有點用急(煮熟鴨子快要飛了)，不然當然想等到年底特價再出手。但情勢一直有問題，喜歡的機子n53sn停產
，W520雖沒數字鍵，但擴充性真是沒話說，再來要找15.6"要支援16g+數字鍵+FHD+USB3.0+I7~~真的沒幾台了。(5951g只有HD，g53不方便維修
，MSI目前暫不考慮)格雷力mr6真的很殺，不得不開始心動中~~
信心源自於實力，勇氣源自於信念！
轉發來自：http://forums.lenovo.com/t5/W-Series-ThinkPad-Laptops/W520-TurboBOOST-not-working-on-battery-or-after-updates/td-p/442909/page/38
All,
There have been two issues here as far as I can tell - a clock rate throttling issue that should have been resolved by later BIOS version (must be connected to the 170w AC adapter) and whether turbo boost is intended to function on battery.
Two formal tips are being released to address these:
1) Throttling
A new BIOS was released to resolve the CPU frequency capping during Turbo Boost on AC power.Version 1.26-1.16 (8BET46WW):Bootable CD (ISO) utility: http://support.lenovo.com/en_US/downloads/detail.page?DocID=DS018887Windows utility: http://support.lenovo.com/en_US/downloads/detail.page?DocID=DS018884
In order to get maximum performance from the ThinkPad W5201) Update the BIOS to version 8BET46WW or later.(2) Operate on AC power using the supplied 170W adapter.
Additional informationDownload link to the Intel Turbo Boost Technology Monitor:
http://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&ProdId=3052&DwnldID=19105&lang=eng
2) Turboboost while on battery only - (not officially supported)
On battery (DC) power, the ThinkPad W520 is designed to put the CPU in Low Frequency Mode, disable Turbo Boost, and scale back the clock speed of the nVidia graphics chip because the overall system power consumption exceeds the available battery supply. The AC adapter, however, does not have this limitation, and can offer full workstation performance as expected.
In order to get maximum performance from the ThinkPad W5201) Update the BIOS to version 8BET46WW or later.(2) Operate on AC power using the supplied 170W adapter.
Additional informationDownload link to the Intel Turbo Boost Technology Monitor:
http://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&ProdId=3052&DwnldID=19105&lang=eng
As these tips publish, Lenovo will have officially addressed the questions posed in this thread and while I think it is fair that those interested in using 3rd party software to customize the way their system works continue the discussion, it may be helpful to start a new topic dedicated to this. One reason is that many new users will click to the end of this thread, note the size of it and may not have the time to read through it in entirety and reach an incorrect conclusions.
THKAW wrote:
我的也不能turbo...(恕刪)
目前暫時用 burk 大大提供的方式
透過ThrottleStop
總算能發揮 i7-2720QM 該有的效能
轉檔速度:轉檔程式是WinAVI Video Converter 標準版本 8.0
由原本 800MHz 的17分鐘
提升至 3.20GHz 的5分鐘(大多速度是在2990.7MHz 偶而跳到 3190.0MHZ)
可惜Solidworks 2010似乎跟轉檔程式一樣
沒有支援8執行緒(有四個執行緒是在完全休息的狀態)
執行程式中CPU的平均使用率大約都是不到15%(八執行緒平均)
如果扣除四個近乎閒置的執行緒來算的話也不到30%
貓.電腦.不思議
yrc wrote:
但是有時候，應該是不定時的狀況下，測試軟體會顯示 CPU 時脈為
2201 MHz，這個時候，就可以 100% 確定 W520 是全速運作的。
W520 的怪問題還不僅這些。(恕刪)
2.2GHz 是 i7-2720QM的一般速度... Turbo Boost 要到3.3GHz 這才算全速運作
怪問題,這邊再提供一個
使用SKYPE一開始有聲音一秒鐘後，出現找不到音效卡的訊息...
超鳥的...
經過爬文... 好像國外不少人都有發現這樣的問題
如果沒有更新音效程式，SKYPE就會有無聲的問題
(目前官網最新的VER. 8.32.23.0 ，27 JUN 2011)
降速的問題不只出現在 W520或是 2720QM
其他機種以及台灣代理版的W520 2820QM 也出現過這樣的問題
希望大家都能自行解決這些問題
但還是期待lenovo官方能主動提供解決的方式，光是維修或換機不是辦法
套一句業務常說的一句話，電腦是買來用的不是買來修的
貓.電腦.不思議
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