Usb ports not working after mavericks install

After installing Mavericks on my mac pro the usb ports are not working for my printer or other usb drives. the only item i can get to be seen via usb is an apple optical mouse. any suggestions would be great.

Hi there grnded189,
You may find the troubleshooting steps in the article below helpful.
OS X Mavericks: If a USB device isn’t working
http://support.apple.com/kb/PH13876
You may also want to reset the PRAM and SMC as well.
OS X Mavericks: Reset your computer’s PRAM
http://support.apple.com/kb/ph14222
Intel-based Macs: Resetting the System Management Controller (SMC)
http://support.apple.com/kb/ht3964
-Griff W.

Similar Messages

CDMA USB Modem Not Working After Mavericks Install

I use my LG VX9100 (Env2) as a CDMA USB internet modem, and it worked fine in Mountain Lion on a Mid 2012 Macbook Air and all other Macs I tried it with. After upgrading to Mavericks, I am not allowed to initiate a connection because the I get a message of "No SIM" after it tries to initialize from the menubar. The phone works fine and I have confirmed that all of the settings are the same. The phone is on Verizon, so the phone has never had a SIM card. This all worked prior to the Mavericks install, so it appears to be a bug. Any suggestions of what to try?

Hi, no drivers were required in the past, basically just had to type in the phone number as the account name followed by @vzw3g.com and enter VZW as a password and it would connect right up using the built in cell data of the phone plan. Only works with dumbphones as far as I know.
So, unless mavericks is subtracting features rather than adding them, the built in drivers should still be there. I have tested it with 10.6 through 10.8 and settings are accesable via the "Network" PrefPane and it always recognized it from a fresh install of OSX. The following article suggests that they have been built into OSX since OS 10.2:
http://www.engadget.com/2005/01/18/how-to-use-your-cdma-cellphone-as-a-usb-modem /
That article was written in 2005 and said that some carriers would need a driver, but I know for sure that more were added since then as I have used built in drivers from 10.6 to 10.8.
Windows may need drivers, but mac has had most CDMA drivers built in for over 10 years now. The VX9100 uses a generic vendor driver, but OSX had selections for most major cell phone manufacturers built in for any custom requirements. There just doesn't seem to be a reason to get rid of the feature now.
Given the fact that it does show up in the menubar like it used to shows that the mac can tell that it is a modem and has the drivers there, but they aren't working properly.

HP G4-2275dx left two usb ports not working after OS install.

Hi all.
I had to remove my windows 8(Upgraded to Pro before) install due to compatibility with certain programs and I was not very satisfied with the results.
So I had an extra cd key for windows 7 x64 home premium.
Everything went smooth.
I had all my drivers installed.
I installed Direct X also.
But when I tried to use my tutle beach headset it would not install the driver for the headset or even make the sound when a device is mounted.
So I checked device manager and I saw three yellow excelemation errors.
two were "Universal Serial Bus(USB) controller"
one was "SM bus controller"
I have installed the catalyst drivers multiple times but no dice.
Any help will be appreciated.
Happy Holidays.
This question was solved.
View Solution.

Hi,
Download and install the Chipset driver from the following link.
http://support.amd.com/en-us/download/chipset?os=Windows%207
When done, restart the notebook.
Regards,
DP-K
****Click the White thumb to say thanks****
****Please mark Accept As Solution if it solves your problem****
****I don't work for HP****
Microsoft MVP - Windows Experience

My printers are not working after mavericks install. What can I do to fix - PLEASE HELP! It is my lifeline - we are a print shop!

My printers are not working after mavericks install.
The printer just PAUSE and can't be resumed.
What can I do to fix - PLEASE HELP!
It is my lifeline - we are a print shop!

Go to the printer manufacture website and download the drivers for your printer model for OS X v10.9 Mavericks.
Then open System Preferences > Printers & Scanners > Print
Select your printer on the left then click - (minus)
Then click + (plus) to add the printer.

Cannot get USB port to work after re-installing of SP2 on Satellite Pro L20

After re-installing XP Home SP2 and downloading all the updates & Drivers from here I cannot get my USB port to work properly, if I have more than one peripheral plugged in it says "Bandwidth Exceeded".
I have a Behringer BCD2000 which is a souncard/midi controler for DJ mixing, it worked fine before i reinstalled windows, now it clicks and pops when playing tunes, also the ASIO doesn't work when I run Traktor (Dj software) and the program freezes. Any other external sound card wont work either. I've been all through the device manager no conflicts apart from an ! over Serial under hidden devices.
I'm lost, is my only option buying a PCMCIA sound card, it worked fine before so surely there is a software solution to this?
If anyone can help I'd be most appreciative.

Hello
Try to disable USB Error Detection:
1. Right-click My Computer and then click Properties.
2. Select Device Manager to view the Device Manager
3. Locate and click the Universal Serial Bus Controller entry.
4. Double-click Universal Host Controller and then click the Advanced tab of the Universal Host Controller Properties.
5. Put a checkmark in the box for Disable USB Error Detection. Click OK.
6. Restart the computer to see if "Bandwidth Exceeded" message occurs again
Did you use recovery media to reinstall WXP? When someone write it worked before and now not it is really not easy to say why this happen. Try to configure notebook as before and maybe it will work again. Behringer BCD2000 is not known to me and I dont know how it works and which software must be preinstalled there.
Can you use different USB devices like external HDD, USB mouse, USB memory stick or printer?

USB ports not working after OSX 10.9.1 update

I have a late 2011 MBA 13".
The 2 USB ports stopped working as soon as I updated to 10.9.1.
I tried zapping PRAM and resetting the SMC.
I even turned the thing off for hours and still nothing.
Any idea how to fix?
Everything was fine until I did the update.
Thanks.

This is not a known bug affecting 2011 MBA computers with 10.9.1 so there is something wrong with your installation. Since zapping PRAM and resetting the SMC did not work I suggest that you try one of two things but first make sure you have backed up your computer.
1) download Mavericks and reinstall it. Sometimes an update goes awry and a reinstall fixes it. Since doing this won't disturb any of your data or applications it would be my first choice. You'll be downloading 10.9.1 so you won't have to perform any updates.
2) boot into the recovery mode, erase the hard drive and then download and install Mavericks. Once Mavericks is finished installing you'll be asked if you'd like to migrate data and applications from a backup. Say yes and if your backup drive isn't already connect it, do so. Select your applications folder and account folders from the list and let the Setup Manager do its magic.
BTW - this is why one of my several backup hard drives is a cloned backup using Carbon Copy Cloner (SuperDuper! Is another good choice). I can boot up my computer using this backup and download the newest version of Mavericks on it if I haven't already done so. I always quit the installer first and make a copy of it because the installer program deletes itself once it is finished which is something of a pain. It gives me more options including being able to boot my computer with it, erase the computer and copy the installer to the computer rather than having to perform the download all over again if step 1 fails. Since I always download a new copy of the OS when Apple releases an update this computer will have the newest version of the installer so I also can skip the download step of option 1 and just copy it over and install on the computer.

Printing System not working after Mavericks install

I have a Samsung Color Laser 325W and an HP Photosmart C310. None of them work after Mavericks upgrade!
Reset printing system and reinstalled Printers. still nothing is working!

Hi there grnded189,
You may find the troubleshooting steps in the article below helpful.
OS X Mavericks: If a USB device isn’t working
http://support.apple.com/kb/PH13876
You may also want to reset the PRAM and SMC as well.
OS X Mavericks: Reset your computer’s PRAM
http://support.apple.com/kb/ph14222
Intel-based Macs: Resetting the System Management Controller (SMC)
http://support.apple.com/kb/ht3964
-Griff W.

USB Ethernet port not working after ML install

After installing ML I cannot get the USB Ethernet port to work. Have searched for andriod file transfer agent but cannot locate it as previously mentioned.

Same Problem over here. Has anyone a good idea how to fix this problem?
After installing ML i cannot get my original Apple USB Ethernet port to work (Macbook Air 2011).

Usb port not working after yosemite update please help

ive got an early 2011 macbook pro i5. and one of my usb stopped working. if i reset my computer it works for a while and then stops again. all these after yosemite update please i really need help on this.. and also when ever im in the middle of something it keeps crashing and saying these things below after i booting back up. ive tried several things, didnt work, tried repairing disk permissions. please anybody with any idea help me!
Anonymous UUID:
CCC4DCA9-48E9-4692-250B-488588FCC69E
Sun Nov 9 17:58:17 2014
*** Panic Report ***
panic(cpu 0 caller 0xffffff802a005eb2): "Possible memory corruption: pmap_pv_remove(0xffffff803b8db998,0x7fff7360f000,0x6d654, 0x6d654d64, 0xffffff8031663cc4, 0xfffffeb38ae0f078): null pv_list!"@/SourceCache/xnu/xnu-2782.1.97/osfmk/i386/pmap_internal.h:768
Backtrace (CPU 0), Frame : Return Address
0xffffff8031663b80 : 0xffffff8029f3a811
0xffffff8031663c00 : 0xffffff802a005eb2
0xffffff8031663cf0 : 0xffffff802a0065e5
0xffffff8031663d50 : 0xffffff8029fb6b4a
0xffffff8031663e60 : 0xffffff8029facd2c
0xffffff8031663e90 : 0xffffff8029f5c747
0xffffff8031663ed0 : 0xffffff802a3c45ff
0xffffff8031663f40 : 0xffffff802a3c425c
0xffffff8031663f50 : 0xffffff802a44dcb2
0xffffff8031663fb0 : 0xffffff802a03ac46
BSD process name corresponding to current thread: suhelperd
Mac OS version:
14A389
Kernel version:
Darwin Kernel Version 14.0.0: Fri Sep 19 00:26:44 PDT 2014; root:xnu-2782.1.97~2/RELEASE_X86_64
Kernel UUID: 89E10306-BC78-3A3B-955C-7C4922577E61
Kernel slide:
0x0000000029c00000
Kernel text base: 0xffffff8029e00000
__HIB text base: 0xffffff8029d00000
System model name: MacBookPro8,1 (Mac-94245B3640C91C81)
System uptime in nanoseconds: 7052072843826
last loaded kext at 6483411185500: com.huawei.driver.HuaweiDataCardActivateDriver    1.0.12 (addr 0xffffff7fac6ba000, size 16384)
last unloaded kext at 6604174049015: com.apple.driver.AppleUSBCDC    4.2.2b5 (addr 0xffffff7fac717000, size 16384)
loaded kexts:
com.huawei.driver.cdc_ncm    2.7.2f16
com.huawei.driver.dc_net    1.0.2
com.huawei.driver.cdc_acm    2.6.2f17
com.huawei.driver.cdc_usb_bus    1.0.3
com.huawei.driver.HuaweiDataCardDriver    4.25.45
com.apple.driver.AppleHWSensor    1.9.5d0
com.apple.driver.AudioAUUC    1.70
com.apple.driver.AGPM    100.14.37
com.apple.filesystems.autofs    3.0
com.apple.iokit.IOBluetoothSerialManager    4.3.0f10
com.apple.driver.AppleOSXWatchdog    1
com.apple.driver.AppleMikeyHIDDriver    124
com.apple.driver.AppleHDA    266.5
com.apple.driver.AppleMikeyDriver    266.5
com.apple.driver.AppleSMCLMU    2.0.4d1
com.apple.driver.ApplePolicyControl    3.7.21
com.apple.driver.AppleLPC    1.7.3
com.apple.driver.AppleUpstreamUserClient    3.6.1
com.apple.iokit.IOUserEthernet    1.0.1
com.apple.Dont_Steal_Mac_OS_X    7.0.0
com.apple.driver.AppleHWAccess    1
com.apple.driver.AppleHV    1
com.apple.driver.ACPI_SMC_PlatformPlugin    1.0.0
com.apple.driver.AppleIntelHD3000Graphics    10.0.0
com.apple.driver.AppleIntelSNBGraphicsFB    10.0.0
com.apple.driver.AppleBacklight    170.4.12
com.apple.driver.AppleMCCSControl    1.2.10
com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport    4.3.0f10
com.apple.driver.AppleSMCPDRC    1.0.0
com.apple.driver.AppleThunderboltIP    2.0.2
com.apple.driver.SMCMotionSensor    3.0.4d1
com.apple.driver.AppleUSBTCButtons    240.2
com.apple.driver.AppleUSBTCKeyboard    240.2
com.apple.driver.AppleIRController    327.5
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless    1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib    1.0.0d1
com.apple.BootCache    35
com.apple.iokit.SCSITaskUserClient    3.7.0
com.apple.driver.XsanFilter    404
com.apple.iokit.IOAHCIBlockStorage    2.6.5
com.apple.driver.AppleUSBHub    705.4.1
com.apple.iokit.AppleBCM5701Ethernet    10.1.2b3
com.apple.driver.AppleFWOHCI    5.5.2
com.apple.driver.AppleSDXC    1.6.5
com.apple.driver.AirPort.Brcm4331    800.20.24
com.apple.driver.AppleAHCIPort    3.0.7
com.apple.driver.AppleUSBEHCI    705.4.14
com.apple.driver.AppleSmartBatteryManager    161.0.0
com.apple.driver.AppleRTC    2.0
com.apple.driver.AppleACPIButtons    3.1
com.apple.driver.AppleHPET    1.8
com.apple.driver.AppleSMBIOS    2.1
com.apple.driver.AppleACPIEC    3.1
com.apple.driver.AppleAPIC    1.7
com.apple.driver.AppleIntelCPUPowerManagementClient    218.0.0
com.apple.nke.applicationfirewall    161
com.apple.security.quarantine    3
com.apple.security.TMSafetyNet    8
com.apple.driver.AppleIntelCPUPowerManagement    218.0.0
com.apple.iokit.IOSCSIBlockCommandsDevice    3.7.0
com.apple.iokit.IOUSBMassStorageClass    3.7.0
com.apple.AppleGraphicsDeviceControl    3.7.21
com.apple.kext.triggers    1.0
com.apple.iokit.IOSerialFamily    11
com.apple.driver.DspFuncLib    266.5
com.apple.kext.OSvKernDSPLib    1.15
com.apple.iokit.IOAudioFamily    200.6
com.apple.vecLib.kext    1.2.0
com.apple.driver.AppleHDAController    266.5
com.apple.iokit.IOHDAFamily    266.5
com.apple.iokit.IOFireWireIP    2.2.6
com.apple.driver.AppleSMBusPCI    1.0.12d1
com.apple.iokit.IOSurface    97
com.apple.driver.IOPlatformPluginLegacy    1.0.0
com.apple.driver.AppleGraphicsControl    3.7.21
com.apple.driver.AppleBacklightExpert    1.1.0
com.apple.iokit.IONDRVSupport    2.4.1
com.apple.driver.AppleSMBusController    1.0.13d1
com.apple.iokit.IOGraphicsFamily    2.4.1
com.apple.iokit.IOBluetoothHostControllerUSBTransport    4.3.0f10
com.apple.iokit.IOBluetoothFamily    4.3.0f10
com.apple.driver.IOPlatformPluginFamily    5.8.0d49
com.apple.iokit.IOUSBUserClient    705.4.0
com.apple.driver.AppleSMC    3.1.9
com.apple.driver.AppleUSBMultitouch    245.2
com.apple.iokit.IOUSBHIDDriver    705.4.0
com.apple.driver.AppleUSBMergeNub    705.4.0
com.apple.driver.AppleUSBComposite    705.4.9
com.apple.iokit.IOSCSIMultimediaCommandsDevice    3.7.0
com.apple.iokit.IOBDStorageFamily    1.7
com.apple.iokit.IODVDStorageFamily    1.7.1
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com.apple.iokit.IOAHCISerialATAPI    2.6.1
com.apple.iokit.IOSCSIArchitectureModelFamily    3.7.0
com.apple.driver.AppleThunderboltNHI    3.1.7
com.apple.iokit.IOThunderboltFamily    4.2.1
com.apple.iokit.IOEthernetAVBController    1.0.3b3
com.apple.iokit.IOFireWireFamily    4.5.6
com.apple.iokit.IO80211Family    700.52
com.apple.driver.mDNSOffloadUserClient    1.0.1b8
com.apple.iokit.IONetworkingFamily    3.2
com.apple.iokit.IOAHCIFamily    2.7.0
com.apple.iokit.IOUSBFamily    705.4.14
com.apple.driver.AppleEFINVRAM    2.0
com.apple.driver.AppleEFIRuntime    2.0
com.apple.iokit.IOHIDFamily    2.0.0
com.apple.iokit.IOSMBusFamily    1.1
com.apple.security.sandbox    300.0
com.apple.kext.AppleMatch    1.0.0d1
com.apple.driver.AppleKeyStore    2
com.apple.driver.AppleMobileFileIntegrity    1.0.5
com.apple.driver.AppleCredentialManager    1.0
com.apple.driver.DiskImages    389.1
com.apple.iokit.IOStorageFamily    2.0
com.apple.iokit.IOReportFamily    31
com.apple.driver.AppleFDEKeyStore    28.30
com.apple.driver.AppleACPIPlatform    3.1
com.apple.iokit.IOPCIFamily    2.9
com.apple.iokit.IOACPIFamily    1.4
com.apple.kec.corecrypto    1.0
com.apple.kec.Libm    1
com.apple.kec.pthread    1
Model: MacBookPro8,1, BootROM MBP81.0047.B04, 2 processors, Intel Core i5, 2.3 GHz, 4 GB, SMC 1.68f96
Graphics: Intel HD Graphics 3000, Intel HD Graphics 3000, Built-In, 384 MB
Memory Module: BANK 0/DIMM0, 2 GB, DDR3, 1333 MHz, 0x80CE, 0x4D34373142353737334448302D4348392020
Memory Module: BANK 1/DIMM0, 2 GB, DDR3, 1333 MHz, 0x80CE, 0x4D34373142353737334448302D4348392020
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0xD6), Broadcom BCM43xx 1.0 (5.106.98.100.24)
Bluetooth: Version 4.3.0f10 14890, 3 services, 19 devices, 2 incoming serial ports
Serial ATA Device: ST9320325ASG, 320.07 GB
Serial ATA Device: HL-DT-ST DVDRW GS31N
USB Device: Hub
USB Device: HUAWEI Mobile
USB Device: IR Receiver
USB Device: FaceTime HD Camera (Built-in)
USB Device: Hub
USB Device: BRCM2070 Hub
USB Device: Bluetooth USB Host Controller
USB Device: Apple Internal Keyboard / Trackpad
Thunderbolt Bus: MacBook Pro, 20080d.0

I have the same problem when I updated to OS X 10.10 I lost both my USB ports as far as they will not recognize anything that I plug into them. The power part of the USB seams to work since it will recharge my Striiv Touch but nothing shows up when you connect anything to the ports.
I have tried a number of things from rebooting, trying other usb devices that work on other systems with no problems but will not work on my Macbook Pro.
Any Help out there?
Hardware Information: ℹ️
MacBook Pro (Retina, 15-inch, Late 2013) (Verified)
MacBook Pro - model: MacBookPro11,3
1 2.3 GHz Intel Core i7 CPU: 4-core
16 GB RAM Not upgradeable
BANK 0/DIMM0
8 GB DDR3 1600 MHz ok
BANK 1/DIMM0
8 GB DDR3 1600 MHz ok
Bluetooth: Good - Handoff/Airdrop2 supported
Wireless: en0: 802.11 a/b/g/n/ac
System Software: ℹ️
OS X 10.10.1 (14B25) - Uptime: 1:43:41
USB Information: ℹ️
Apple Internal Memory Card Reader
Apple Inc. BRCM20702 Hub
Apple Inc. Bluetooth USB Host Controller
Apple Inc. Apple Internal Keyboard / Trackpad

Usb port not working in Mavericks

Now that I've upgraded to Mavericks, my USB ports don't seem to be working, ie I cannot connect my devices (iPhone 4s and iPad 3) to iTunes. Any help out there?

Hi all!, I'm experiencing the same problem here, but resetting both SMC and PRA/NVRAM had no effect: USB is still non working. It's a fresh installation of 10.9.5 on a brand new HDD (no other HDDs attached), and I have no BT to attach another mouse to, so I can't even operate the machine. The system responds to other inputs (the clock ticks on, and if I press the power button it asks me if I want to shut down), but will not see any USB device (keyboard, mouse, ext. volumes... nothing).
Note that USB ports are FULLY functional during boot (e.g. during the boot volume select screen) and under 10.6.8 (that sits in another HDD currently detached). The only quirk is that the machine does not want to BOOT from a USB drive (it lets me select the drive, but it will not boot from it eventually).
Where should I look for the problem and/or the solution?
Any further idea apart from the resets?
Thanks!

Admin password not working after Mavericks install

I have installed OS X Mavericks on a Mac mini (upgrade from OS X 10.8). After the install I can't log in to the admin account using my regular password. However, the other account, not having admin rights, works fine in the Mavericks OS. But I need access to the admin account as well! How can I reset the password? I have no recent backup.
Leffi, Norway

Reset password:
https://discussions.apple.com/thread/5478030?tstart=0
You should never be in the position of not having reasonbly current backups, especially before any major OS updates. Your data is more valuable than your computer and certainly more vaulable than a $100 external backup drive.
For more about backups:
Time Machine Basics: http://support.apple.com/kb/ht1427
Most commonly used backup methods:
https://discussions.apple.com/docs/DOC-3045
Methodology to protect your data. Backups vs. Archives. Long-term data protection:
https://discussions.apple.com/docs/DOC-6031

Thunderbolt Display USB ports not working after 1.2 firmware update

I installed the Thunderbolt Display Firmware Update 1.2 a few days back, and following that update, the USB ports on my display have stopped working completely. The display's Thunderbolt port and Ethernet jacks are working fine, as is the Thunderbolt/power cable connection to my MacBook Air (mid-2011, 11 inch, running OS X Yosemite 10.10.1). Any ideas on a fix?

Do an SMC and PRAM reset.

File sharing not working after mavericks install

I have upgraded both my MB Air and my Mini to Mavericks and have discovered that sharing between the two over my wi-fi network is not working. I cannot share the printer from my mini to the Air, and when I try to "connect to server" under the "go" menu in finder, it says, "there was a problem connecting to the server "mini.local".
Any help?

Hi Bryan_Jay,
Any resolution to this issue? I have the exact same setup. A 2013 MB Air on a Time Capsule network with a 2013 Mac Mini. The strange thing is that sharing worked fine after the Mavericks upgrade for about 2 weeks; after that point I cannot connect to shared folders on the Mini from the MacBook, but am able to connect from the Mini to the MacBook. On an interesting note, I am able to connect to the Mini from the MacBook using Screen Sharing. I'm wondering if a system update might have caused the problem.
Hope you're up and running!
- Chris

New T400 - Mini Dock USB Ports not working after hot dock

Hello,
just got a new T400 at work. I know this issue was common with the R60...however I figured this would be resolved with the T400. After PROPERLY undocking my T400 (Start -> undock -> wait for notification and green light)..... I go off to my meetings, etc and all is well with the world. When re-dock the machine, the USB keyboard and Mouse (and sometimes the monitor) will not re-engage. Sometimes I get the monitor...and no keyboard and mouse.
Any ideas on this? Kind of frustrating because I usually have to re-boot (or unplug the mouse/keyboard/ monitor from the dock and plug them directly into the laptop...which defeats the purpose of the dock).
Appreciate the help!
Robert

i have the same problem with a R60 and advanced minidock (winXP SP3). it worked for three years now, but since about one month, when returning to dock, my USB mouse only works in about one of five cases. monitor-usb same problem. keyboard is an old PS/2, this always works. i need to plug the mouse directly to the R60, then it is recognised and works as expected. i do driver updates quite regular, so maybe one of the last drivers have a bug?

DIY Fusion drive not working after Mavericks install

Hi Everyone,
I had setup a DIY fusion drive on my iMac 27" Mid 2011 - installing a Samsung SSD and a new 1TB drive. Everything was working swimmingly in Mountain Lion but as soon as I upgraded to Mavericks - everything slowed down.
In speed test I get an average write speed of 70 MB/s and a read of about 100MB/s...
Did I do something wrong? I installed Mavericks via the App Store.
Thanks.
Martin

Did you ever figure this out? I have a similar experience (read below) and wanted to know if anything you learned helped?
Hi all. I have a 3.2GHz i5 w 24 GB of Ram. Purchased in January 2014.
My good friend helped me install a DIY Fusion. I purchased a 256GB Samsung 840 Pro SSD and he did the work to "fuse" it with the regular 1TB HD the iMac came with. It is attached via USB 3.0 in an OWC case.
Originally, after being set up - Black Magic Speed tests benched it at 250-350 write and 500-650 read. I'm not a techie, but spent enough time to know that is pretty smoking and well above a typical disk hard drive.
Well, now it is down to 70-80 write and 180-250 read. The imac still boots in less than 25 seconds, so I don't feel the system is slow. (and it certainly blazes next to the first generation aluminum iMac I had before - a 2008 model). But I am concerned at deterioration of speed and really thought the extra investment would have led to faster sustained speeds.
So my questions are:
* Does anybody have any ideas why this is happening?
* Any idea what the fix is? I'm hoping not to have to start over.
* Any ideas whether it would have been better just to keep the 256 a boot drive for OS & apps, and leave the 1TB for media? I almost did this and wonder if it would have simplified things or led to better performance.
* Any idea where to go from here?
BTW, I know a little about TRIM, but I think my friend said the Samsung will handle that itself.
Lastly, you can probably tell I know a bit ABOUT this stuff, but not much on HOW to do it. So regular maintenance and upkeep is not my strong suit.
Thanks in advance for comments & suggestions.
Jake

Usb ports not working after mavericks install

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