No direct reading.
Dell Inspiron 1501
Windows XP Media Center Edition
SP2
I never had this work and just decided I would try it out. I read that Dell provided their laptops with live monitoring power off. I tried the regedit and am sure I did it right. I then restart my computer, and when I go to the part where we can read:
"2. in the Options menu, select Properties.
3. under "Show the following volume controls" check the input monitor. Click OK. »
I do not end up see entry monitor... so I can't check.
I'm not sure what I'm doing wrong. My audio works fine. I can record and then play again. I don't know that this is not just cut in the Volume controls.
Thank you and I would be very grateful if you can solve this problem. Let me know if you need more info.
Tags: Dell Laptop
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My direct read anchor point selection tool and the handle when on these points, but is now box or anything. How do I change back.
Turn on view > Smart guides.
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"path direct reading temp '-P1
Hello!
One of my active sessions waiting 'the direct path read temp' event.
Average P1 number settings file and at the same time why this grater number as:select max(file#) from v$ datafile;
I'm usung 10.2.0.5
Thank you and best regards,
PavelThe file referenced in the direct path read temp"wait event is a temporary file.
EEG, the number of file to a temporary file, you need to subtract the number P1 file db max.
You can get the maximum number of db files with
{code}
Select the value of the parameter $ v where name = 'db_files '.
{code}
After getting the file number of the temporary file, you must look at v$ tempfile for further details.Lordane Iotzov
http://iiotzov.WordPress.com/ -
force direct read instead of memory
Hello
is it possible via a tip or something to force oracle does not put blocks of a sql for the buffer cache and read directly to disk every time? That's a test question.
Thank you allHe has hidden parameter serialdirect_read.
The allowed values depend on the version:
before 11R2 - true or false
11R2 - true/false/always/never/autoalter session set "_serial_direct_read"=trueIt works in any version > = 8i.
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Is it reasonable to require a Full table Scan (Direct path read) on a large Table
Hello
I have an Oracle 11.2.0.3 on a Sun Solaris 10 sparc with SGA 25 GB machine
One of my made SQL an analysis of indexes on the table to 45 GB where the size of the index is 14FR and the thourghput for the sequential read is 2MBPS.
so now (Index) 14 000 Mo, 14 GB / 2 MB = dry 7000 = 2 hours to scan the index.
Flow of the direct path read is 500 Mbps for an another SQL and reads assimilate them all live.
and because of this flow, a read (FTS) of direct path on the table of 7 GB out in 12-13 seconds. So in my case, it probably takes 100 seconds to scan the entire table. It is a monthly report and does not often.
Should I try to use a trick to force sql to do a full scan and exploit the possibilities of direct reading and is done in a few minutes? Assuming it to do a FTS (direct play)
Of course, it will be tested and verified, but the question is, is this a sensible apprioach? is - anyone has experience by forcing it?
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82million lines and a grouping of 18million factor? And really 17million from lines to recover? However, your result set after the hash join is 3500 lines, although the optimizer expects 16 lines.
I would say that the statistics are not representative or not in use for this SQL. Certainly, the index does not match query predicates.
The fact that the index is also using the virtual columns only adds to confusion.
Hemant K Collette
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With regard to 'Direct Path read' expected
As we know, the direct path read waits is a new feature of Oracle 11 g. Oracle Documents or other objects, when it's the full table scan, direct path reading took place. But why it happened? I don't know clearly.
Here is the description of the Oracle Document:
http://docs.Oracle.com/CD/E18283_01/server.112/e17110/waitevents003.htm#sthref3849
During operations of Direct Reading of data asynchronously access path in the database files. At some point, the session must ensure that all the asynchronous i/o in circulation have been realized on the drive. This can also happen if during a direct reading without more slots is available for storing exceptional load requests (a charge application might consist of several e/s).
Question:
1 during operations of Direct data asynchronously reading path in database files. > > this statement means what? What of "asynchronous reading '?
2 describe above description for me in details.
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Thanks in advance.
Lonion
Lonion wrote:
Question:
1. to path operations Direct playback of data asynchronously in the database files. > This statement means what? What of "asynchronous reading '?
2 describe above description for me in details.
3. who can clearly explain "why read direct path wait to happen ' for me?
If you want to get very technical, Frits Hoogland wrote a lot about the implementation:
http://fritshoogland.WordPress.com/2013/05/09/direct-path-read-and-fast-full-index-scans/
http://fritshoogland.WordPress.com/2013/01/04/Oracle-11-2-and-the-direct-path-read-event/
http://fritshoogland.WordPress.com/2012/12/27/Oracle-11-2-0-1-and-the-KFK-async-disk-IO-wait-event/
http://www.UKOUG.org/what-we-offer/library/about-Multiblock-reads/about-Multiblock-reads.PDF
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Jonathan Lewis
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DB file sequential read and read of the direct path
Hello
Could someone please clear my doubts about 'db file sequential read' and ' path direct reading. And help me understand the tkprof report correctly.
Please suggest if my understanding for scenario below is correct.
We have a 11.2.0.1 ' cluster 2 node rac version + asm' production and environment of his test environment that is a stand-alone database.
The query performs well in production compared to the test database.
The table is to have 254 + columns (264) with many lobs coulumns however LOB is not currently selected in the query.
I read in metalink this 254 table + column a intra-line-chaining, causing "db file sequential read" full table Scan.
Here are some details on the table which is similar to the prod and test, block size is 8 k:
What I understand less tkprof in production environment for a given session is:TABLE UNUSED BLOCKS TOTAL BLOCKS HIGH WATER MARK ------------------------------ --------------- --------------- --------------- PROBSUMMARYM1 0 17408 17407
1 - the request resulted in disk 19378 readings and 145164 consistent readings.
2 19378 disc bed, 2425 reads disc has given rise to the wait event 'db file sequential read'.
This statement is correct this disc remaining readings were "db file sequential reads" but real quick so didn't wait event tied to it?
3 - 183 'direct path read' there also. Is it because of the order by clause of the query?
The same query when ran in no no rac - asm test stand alone database has given below tkprof.SQL ID: 72tvt5h4402c9 Plan Hash: 1127048874 select "NUMBER" num from smprd.probsummarym1 where flag ='f' and affected_item = 'PAUSRWVP39486' order by num asc call count cpu elapsed disk query current rows ------- ------ -------- ---------- ---------- ---------- ---------- ---------- Parse 1 0.00 0.00 0 0 0 0 Execute 1 0.00 0.00 0 0 0 0 Fetch 1 0.53 4.88 19378 145164 0 0 ------- ------ -------- ---------- ---------- ---------- ---------- ---------- total 3 0.53 4.88 19378 145164 0 0 Misses in library cache during parse: 0 Optimizer mode: ALL_ROWS Parsing user id: SYS Rows Row Source Operation ------- --------------------------------------------------- 0 SORT ORDER BY (cr=145164 pr=19378 pw=0 time=0 us cost=4411 size=24 card=2) 0 TABLE ACCESS FULL PROBSUMMARYM1 (cr=145164 pr=19378 pw=0 time=0 us cost=4410 size=24 card=2) Elapsed times include waiting on following events: Event waited on Times Max. Wait Total Waited ---------------------------------------- Waited ---------- ------------ SQL*Net message to client 1 0.00 0.00 ges message buffer allocation 3 0.00 0.00 enq: KO - fast object checkpoint 2 0.00 0.00 reliable message 1 0.00 0.00 KJC: Wait for msg sends to complete 1 0.00 0.00 Disk file operations I/O 1 0.00 0.00 kfk: async disk IO 274 0.00 0.00 direct path read 183 0.01 0.72 db file sequential read 2425 0.05 3.71 SQL*Net message from client 1 2.45 2.45
Does this mean that:
1-here too, reads happen through "db file sequential read", but they were so fast that has failed to the wait event?
2. "direct path read," it's because of the order clause in the query. "
For trace files in the database Production and Test, I see that 'direct path read' is against the same data file that's stored table.SQL ID: 72tvt5h4402c9 Plan Hash: 1127048874 select "NUMBER" num from smprd.probsummarym1 where flag ='f' and affected_item = 'PAUSRWVP39486' order by num asc call count cpu elapsed disk query current rows ------- ------ -------- ---------- ---------- ---------- ---------- ---------- Parse 1 0.00 0.00 0 0 0 0 Execute 1 0.00 0.06 0 0 0 0 Fetch 1 0.10 0.11 17154 17298 0 0 ------- ------ -------- ---------- ---------- ---------- ---------- ---------- total 3 0.10 0.18 17154 17298 0 0 Misses in library cache during parse: 0 Optimizer mode: ALL_ROWS Parsing user id: SYS Rows Row Source Operation ------- --------------------------------------------------- 0 SORT ORDER BY (cr=17298 pr=17154 pw=0 time=0 us cost=4694 size=12 card=1) 0 TABLE ACCESS FULL PROBSUMMARYM1 (cr=17298 pr=17154 pw=0 time=0 us cost=4693 size=12 card=1) Elapsed times include waiting on following events: Event waited on Times Max. Wait Total Waited ---------------------------------------- Waited ---------- ------------ SQL*Net message to client 1 0.00 0.00 Disk file operations I/O 1 0.00 0.00 db file sequential read 3 0.00 0.00 direct path read 149 0.00 0.03 SQL*Net message from client 1 2.29 2.29
Then how come 'this direct path read' because of the order by clause of the query and would have been in sort field size or pga?
Or this direct path read extracts real PGA disk data, and "db file sequential read" do not extract data?
I know, it's 'direct path read' is wait event when data are asked in PGA drive or what kind segment or temp tablespace is used.
Here is the example of trace file in the Production database:
Here are the trace file for the test database:*** 2013-01-04 13:49:15.109 WAIT #1: nam='SQL*Net message from client' ela= 11258483 driver id=1650815232 #bytes=1 p3=0 obj#=-1 tim=1357278555109496 CLOSE #1:c=0,e=9,dep=0,type=1,tim=1357278555109622 ===================== PARSING IN CURSOR #1 len=113 dep=0 uid=0 oct=3 lid=0 tim=1357278555109766 hv=138414473 ad='cfc02ab8' sqlid='72tvt5h4402c9' select "NUMBER" num from smprd.probsummarym1 where flag ='f' and affected_item = 'PAUSRWVP39486' order by num asc END OF STMT PARSE #1:c=0,e=98,p=0,cr=0,cu=0,mis=0,r=0,dep=0,og=1,plh=1127048874,tim=1357278555109765 EXEC #1:c=0,e=135,p=0,cr=0,cu=0,mis=0,r=0,dep=0,og=1,plh=1127048874,tim=1357278555109994 WAIT #1: nam='SQL*Net message to client' ela= 2 driver id=1650815232 #bytes=1 p3=0 obj#=-1 tim=1357278555110053 WAIT #1: nam='ges message buffer allocation' ela= 3 pool=0 request=1 allocated=0 obj#=-1 tim=1357278555111630 WAIT #1: nam='enq: KO - fast object checkpoint' ela= 370 name|mode=1263468550 2=65610 0=1 obj#=-1 tim=1357278555112098 WAIT #1: nam='reliable message' ela= 1509 channel context=3691837552 channel handle=3724365720 broadcast message=3692890960 obj#=-1 tim=1357278555113975 WAIT #1: nam='ges message buffer allocation' ela= 2 pool=0 request=1 allocated=0 obj#=-1 tim=1357278555114051 WAIT #1: nam='enq: KO - fast object checkpoint' ela= 364 name|mode=1263468550 2=65610 0=1 obj#=-1 tim=1357278555114464 WAIT #1: nam='KJC: Wait for msg sends to complete' ela= 9 msg=3686348728 dest|rcvr=65536 mtype=8 obj#=-1 tim=1357278555114516 WAIT #1: nam='ges message buffer allocation' ela= 2 pool=0 request=1 allocated=0 obj#=-1 tim=1357278555114680 WAIT #1: nam='Disk file operations I/O' ela= 562 FileOperation=2 fileno=6 filetype=2 obj#=85520 tim=1357278555115710 WAIT #1: nam='kfk: async disk IO' ela= 5 count=1 intr=0 timeout=4294967295 obj#=85520 tim=1357278555117332 *** 2013-01-04 13:49:15.123 WAIT #1: nam='direct path read' ela= 6243 file number=6 first dba=11051 block cnt=5 obj#=85520 tim=1357278555123628 WAIT #1: nam='db file sequential read' ela= 195 file#=6 block#=156863 blocks=1 obj#=85520 tim=1357278555123968 WAIT #1: nam='db file sequential read' ela= 149 file#=6 block#=156804 blocks=1 obj#=85520 tim=1357278555124216 WAIT #1: nam='db file sequential read' ela= 155 file#=6 block#=156816 blocks=1 obj#=85520 tim=1357278555124430 WAIT #1: nam='db file sequential read' ela= 4826 file#=6 block#=156816 blocks=1 obj#=85520 tim=1357278555129317 WAIT #1: nam='db file sequential read' ela= 987 file#=6 block#=156888 blocks=1 obj#=85520 tim=1357278555130427 WAIT #1: nam='db file sequential read' ela= 3891 file#=6 block#=156888 blocks=1 obj#=85520 tim=1357278555134394 WAIT #1: nam='db file sequential read' ela= 155 file#=6 block#=156912 blocks=1 obj#=85520 tim=1357278555134645 WAIT #1: nam='db file sequential read' ela= 145 file#=6 block#=156920 blocks=1 obj#=85520 tim=1357278555134866 WAIT #1: nam='db file sequential read' ela= 234 file#=6 block#=156898 blocks=1 obj#=85520 tim=1357278555135332 WAIT #1: nam='db file sequential read' ela= 204 file#=6 block#=156907 blocks=1 obj#=85520 tim=1357278555135666 WAIT #1: nam='kfk: async disk IO' ela= 4 count=1 intr=0 timeout=4294967295 obj#=85520 tim=1357278555135850 WAIT #1: nam='direct path read' ela= 6894 file number=6 first dba=72073 block cnt=15 obj#=85520 tim=1357278555142774 WAIT #1: nam='db file sequential read' ela= 4642 file#=6 block#=156840 blocks=1 obj#=85520 tim=1357278555147574 WAIT #1: nam='db file sequential read' ela= 162 file#=6 block#=156853 blocks=1 obj#=85520 tim=1357278555147859 WAIT #1: nam='db file sequential read' ela= 6469 file#=6 block#=156806 blocks=1 obj#=85520 tim=1357278555154407 WAIT #1: nam='db file sequential read' ela= 182 file#=6 block#=156826 blocks=1 obj#=85520 tim=1357278555154660 WAIT #1: nam='db file sequential read' ela= 147 file#=6 block#=156830 blocks=1 obj#=85520 tim=1357278555154873 WAIT #1: nam='db file sequential read' ela= 145 file#=6 block#=156878 blocks=1 obj#=85520 tim=135727855515
Thanks & Rgds,*** 2013-01-04 13:46:11.354 WAIT #1: nam='SQL*Net message from client' ela= 10384792 driver id=1650815232 #bytes=1 p3=0 obj#=-1 tim=1357278371354075 CLOSE #1:c=0,e=3,dep=0,type=3,tim=1357278371354152 ===================== PARSING IN CURSOR #1 len=113 dep=0 uid=0 oct=3 lid=0 tim=1357278371363427 hv=138414473 ad='c7bd8d00' sqlid='72tvt5h4402c9' select "NUMBER" num from smprd.probsummarym1 where flag ='f' and affected_item = 'PAUSRWVP39486' order by num asc END OF STMT PARSE #1:c=0,e=9251,p=0,cr=0,cu=0,mis=0,r=0,dep=0,og=1,plh=1127048874,tim=1357278371363426 EXEC #1:c=0,e=63178,p=0,cr=0,cu=0,mis=0,r=0,dep=0,og=1,plh=1127048874,tim=1357278371426691 WAIT #1: nam='SQL*Net message to client' ela= 2 driver id=1650815232 #bytes=1 p3=0 obj#=-1 tim=1357278371426766 WAIT #1: nam='Disk file operations I/O' ela= 1133 FileOperation=2 fileno=55 filetype=2 obj#=93574 tim=1357278371428069 WAIT #1: nam='db file sequential read' ela= 51 file#=55 block#=460234 blocks=1 obj#=93574 tim=1357278371428158 WAIT #1: nam='direct path read' ela= 31 file number=55 first dba=460235 block cnt=5 obj#=93574 tim=1357278371428956 WAIT #1: nam='direct path read' ela= 47 file number=55 first dba=136288 block cnt=8 obj#=93574 tim=1357278371429099 WAIT #1: nam='direct path read' ela= 80 file number=55 first dba=136297 block cnt=15 obj#=93574 tim=1357278371438529 WAIT #1: nam='direct path read' ela= 62 file number=55 first dba=136849 block cnt=15 obj#=93574 tim=1357278371438653 WAIT #1: nam='direct path read' ela= 17 file number=55 first dba=136881 block cnt=7 obj#=93574 tim=1357278371438750 WAIT #1: nam='direct path read' ela= 35 file number=55 first dba=136896 block cnt=8 obj#=93574 tim=1357278371438855 WAIT #1: nam='direct path read' ela= 22 file number=55 first dba=136913 block cnt=7 obj#=93574 tim=1357278371438936 WAIT #1: nam='direct path read' ela= 19 file number=55 first dba=137120 block cnt=8 obj#=93574 tim=1357278371439029 WAIT #1: nam='direct path read' ela= 36 file number=55 first dba=137145 block cnt=7 obj#=93574 tim=1357278371439114 WAIT #1: nam='direct path read' ela= 18 file number=55 first dba=137192 block cnt=8 obj#=93574 tim=1357278371439193 WAIT #1: nam='direct path read' ela= 16 file number=55 first dba=137201 block cnt=7 obj#=93574 tim=1357278371439252 WAIT #1: nam='direct path read' ela= 17 file number=55 first dba=137600 block cnt=8 obj#=93574 tim=1357278371439313 WAIT #1: nam='direct path read' ela= 15 file number=55 first dba=137625 block cnt=7 obj#=93574 tim=1357278371439369 WAIT #1: nam='direct path read' ela= 22 file number=55 first dba=137640 block cnt=8 obj#=93574 tim=1357278371439435 WAIT #1: nam='direct path read' ela= 702 file number=55 first dba=801026 block cnt=126 obj#=93574 tim=1357278371440188 WAIT #1: nam='direct path read' ela= 1511 file number=55 first dba=801154 block cnt=126 obj#=93574 tim=1357278371441763 WAIT #1: nam='direct path read' ela= 263 file number=55 first dba=801282 block cnt=126 obj#=93574 tim=1357278371442547 WAIT #1: nam='direct path read' ela= 259 file number=55 first dba=801410 block cnt=126 obj#=93574 tim=1357278371443315 WAIT #1: nam='direct path read' ela= 294 file number=55 first dba=801538 block cnt=126 obj#=93574 tim=1357278371444099 WAIT #1: nam='direct path read' ela= 247 file number=55 first dba=801666 block cnt=126 obj#=93574 tim=1357278371444843 WAIT #1: nam='direct path read' ela= 266 file number=55 first dba=801794 block cnt=126 obj#=93574 tim=1357278371445619
Vijay911786 wrote:
Direct path readings can be done on the series tablescans in your version of Oracle, but if you have chained rows in the table and then Oracle can read read read the beginning of the line in the path directly, but must make a single block in the cache (the db file sequential read) to get the next part of the line.
It is possible that your production system has a lot of chained rows, while your test system is not. As corroboration (though not convincing) indicator of what you might notice that if you take (reads disc - db file sequential reads) - who might get you close to all the blocks direct read - the numbers are very similar.
I'm not 100% convinced that it's the answer for the difference in behavior, but worth a visit. If you can force and indexed access path in the table, do something like "select / * + index (use {pk}) * / max table (last_column_in_table)" and check the number of "table fetch continued lines" could be close to the number of db file sequential reads you. (There are other options for the counting of the chained rows that could be faster).
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Jonathan Lewis -
The direct readings and parallel reading
What is the difference between the direct and parallel reading?Direct read:
http://docs.Oracle.com/CD/E11882_01/server.112/e25513/waitevents003.htm#sthref3915
http://docs.Oracle.com/CD/E11882_01/server.112/e16638/instance_tune.htm#sthref726Db file parallel read:
http://docs.Oracle.com/CD/E11882_01/server.112/e25513/waitevents003.htm#sthref3901 -
Hello
It is possible to directly read files A2L uses Veristand on "System Explorer-> material-> add NI - CAN-> Messages-> import NI-CAN Messages?
I have seen that it is possible to do with .dbc or .ncd files, but we use the .a2l file.
Any suggestion will be appreciated.
I contacted Luciano with few options, he should get in touch with you soon.
Take care
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Yes, I could solve this problem. a LabVIEW engineer suggested this solution and it worked. See Section 3 (Nonreferenced) floating measurement of Sources at this link:
http://www.NI.com/white-paper/3344/en/#toc3
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Hello world
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Amazing grace! LGWR is READING!
Oracle 11g has a table called V$ IOFUNCMETRIC, which is a feature
table of metrics, as the game that has been introduced in 10g. What confuses
There are 2 things to me:
(1) SQL > select function_name from V$ IOFUNCMETRIC;
FUNCTION_NAME
------------------
Recovery
Direct writing
Smart Scan
Others
ARCH
DBWR
XDB
Streams AQ
Buffer Cache reads
Direct readings
Data pump
LGWR
RMAN
13 selected lines.
What the devil is "smart scan"? It is neither a cache buffers read or
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2 from V$ IOFUNCMETRIC
3 * where FUNCTION_NAME = 'LGWR.
SQL > /.
SMALL_READ_MBPS SMALL_READ_IOPS
--------------- ---------------
1.83150183.016650017
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LGWR is READING? What is reading newspaper writer? Newspaper editor isn't supposed to
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Explanation of Kevin Closson to this article http://tinyurl.com/yr37pw
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--
Mladen Gogala
http://mgogala.freehostia.comKandi Sissi wrote:
Satish, always the question of the "smart scan"?
:-( I haven't found something in this regard. It seems to be undocumented (or my search is not developed).
I guess the "smart scan" refers to new technology "Exadata" that allows to perform a so-called "smart scan" which means that the storage system for example performs a full table scan to the server only returns the rows and columns that meet the criteria of filter/projection, the subsystem of storage rather than brute force simply transfer all the blocks from the table.
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RandolfOracle related blog stuff:
http://Oracle-Randolf.blogspot.com/SQLTools ++ for Oracle (Open source Oracle GUI for Windows):
http://www.sqltools-plusplus.org:7676 /.
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Need help please, need info in iCloud, Apple ID, and for security reasons's iMessage
So, I gave recently someone I know borrow my iPod touch 5g for a few weeks. At the beginning, I let him use my iCloud, even giving them my password. Later, they said that they have signed in their own iCloud. I thought I could sleep in peace, because
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ProBook 650 G1: Bluetooth speakers does not connect at startup
I have a new HP laptop with Broadcom bluetooth. My bluetooth speakers work, but I have to manually connect every time Windows starts. First of all, I put as audio device bluetooth speakers in the Panel by default: Then I reboot. I first hear a beep i
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Lenovo G505s energy for windows 8.1 64-bit management
Looking for new wersion for power management g505s. On the drivers download page is only for win 7 and 8 http://mobilesupport.Lenovo.com/pl/PL/products/laptops-and-netbooks/Lenovo-g-series-laptops/LENOVO-g...
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Como desbloquear boton power led lcd hpw2338h hp monitor
Como desbloquear el boton power led to a hp w2338h lcd monitor
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Computer crashing while playing dota 2.
The computer hangs at random while game dota 2, I checked the event logs and found this. It is said in Pnp kernel warnings The driver failed to load unit WpdBusEnumRoot\UMB\2 \Driver\WUDFRd & 37c186b & 0 & STORAGE #VOLUME # _____? _USBSTOR #DISK & VE