Bonjour,
Alors que l'installation dans mon MBP early 2008 d'un SSD Crucial M4 128 Go  et d'un Seagate Momentus XT à la place du lecteur optique se sont passés à merveille (hormis la baie d'accueil défectueuse, mais remplacée et depuis, plus aucun souci), j'ai de gros problèmes avec l'installation de Mountain Lion sur un autre M4 dans un boitier Icy Box (USB 3 +Firewire).
Jai des plantages à répétition (de certaines applications et du système) et je ne sais pas si le problème vient du M4 ou du boitier.
Les plantages systèmes sont tellement "gros" que régulièrement, je dois reformater le disque. Parfois, c'est un autre disque, dont celui qui contenait ma sauvegarde time machine, qui devient "irréparable" (message : Mac OS ne peut réparer ce disque... sauvegardes un max puis reformatez).
Quelqu'un pourrait-il voir si c'est le SSD ou son boitier ? J'ai essayé le SSD dans un boitier à 7  et ça a planté aussi, mais moins vite. Depuis que j'ai ajouté une alim au boitier, ça plante moins, mais ça finit par le faire et à rendre le disque inutilisable.
Voici un rapport de crash safari. Je le mets en plusieurs messages :
Process:         WebProcess [1401]
Path:            /System/Library/PrivateFrameworks/WebKit2.framework/WebProcess.app/Contents/MacOS/WebProcess
Identifier:      com.apple.WebProcess
Version:         8536 (8536.26.14)
Build Info:      WebKit2-7536026014000000~3
Code Type:       X86-64 (Native)
Parent Process:  ??? [1399]
User ID:         507
Date/Time:       2012-10-16 21:31:58.627 +0200
OS Version:      Mac OS X 10.8.2 (12C60)
Report Version:  10
Interval Since Last Report:          71792 sec
Crashes Since Last Report:           63
Per-App Interval Since Last Report:  28675 sec
Per-App Crashes Since Last Report:   10
Anonymous UUID:                      69DC23A5-02XXXXXXXXXXXXCB65ED9AF33
Crashed Thread:  15  Dispatch queue: CA::CG::Queue
Exception Type:  EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Application Specific Information:
abort() called
Bundle controller class:
BrowserBundleController
Thread 0:: Dispatch queue: com.apple.main-thread
0   libsystem_kernel.dylib        	0x00007fff8d9716c2 semaphore_wait_trap + 10
1   libdispatch.dylib             	0x00007fff882edc32 _dispatch_thread_semaphore_wait + 16
2   libdispatch.dylib             	0x00007fff882eda92 _dispatch_barrier_sync_f_slow + 188
3   com.apple.QuartzCore          	0x00007fff91a5c409 CABackingStoreGetFrontTexture(CABackingStore*) + 96
4   com.apple.QuartzCore          	0x00007fff91a38012 CABackingStorePrepareFrontTexture + 54
5   com.apple.QuartzCore          	0x00007fff91a59b21 CA::Layer:

repare_commit(CA::Transaction*) + 433
6   com.apple.QuartzCore          	0x00007fff91a4b65e CA::Context::commit_transaction(CA::Transaction*) + 272
7   com.apple.QuartzCore          	0x00007fff91a4b423 CA::Transaction::commit() + 369
8   com.apple.QuartzCore          	0x00007fff91a4b23f CA::Transaction::observer_callback(__CFRunLoopObserver*, unsigned long, void*) + 63
9   com.apple.CoreFoundation      	0x00007fff888239b7 __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 23
10  com.apple.CoreFoundation      	0x00007fff88823921 __CFRunLoopDoObservers + 369
11  com.apple.CoreFoundation      	0x00007fff887fe6d4 CFRunLoopRunSpecific + 324
12  com.apple.HIToolbox           	0x00007fff920f00a4 RunCurrentEventLoopInMode + 209
13  com.apple.HIToolbox           	0x00007fff920efe42 ReceiveNextEventCommon + 356
14  com.apple.HIToolbox           	0x00007fff920efcd3 BlockUntilNextEventMatchingListInMode + 62
15  com.apple.AppKit              	0x00007fff89cc9613 _DPSNextEvent + 685
16  com.apple.AppKit              	0x00007fff89cc8ed2 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 128
17  com.apple.AppKit              	0x00007fff89cc0283 -[NSApplication run] + 517
18  com.apple.WebCore             	0x00007fff87aaee0f WebCore::RunLoop::run() + 63
19  com.apple.WebKit2             	0x00007fff912b3c8a WebKit::WebProcessMain(WebKit::CommandLine const&) + 2586
20  com.apple.WebKit2             	0x00007fff9127b5bd WebKitMain + 285
21  com.apple.WebProcess          	0x000000010ecbee7b 0x10ecbe000 + 3707
22  libdyld.dylib                 	0x00007fff923fb7e1 start + 1
Thread 1:
0   libsystem_kernel.dylib        	0x00007fff8d9736d6 __workq_kernreturn + 10
1   libsystem_c.dylib             	0x00007fff914f0eec _pthread_workq_return + 25
2   libsystem_c.dylib             	0x00007fff914f0cb3 _pthread_wqthread + 412
3   libsystem_c.dylib             	0x00007fff914db171 start_wqthread + 13
Thread 2:: Dispatch queue: com.apple.libdispatch-manager
0   libsystem_kernel.dylib        	0x00007fff8d973d16 kevent + 10
1   libdispatch.dylib             	0x00007fff882ebdea _dispatch_mgr_invoke + 883
2   libdispatch.dylib             	0x00007fff882eb9ee _dispatch_mgr_thread + 54
Thread 3:
0   libsystem_kernel.dylib        	0x00007fff8d9736d6 __workq_kernreturn + 10
1   libsystem_c.dylib             	0x00007fff914f0eec _pthread_workq_return + 25
2   libsystem_c.dylib             	0x00007fff914f0cb3 _pthread_wqthread + 412
3   libsystem_c.dylib             	0x00007fff914db171 start_wqthread + 13
Thread 4:: JavaScriptCore::BlockFree
0   libsystem_kernel.dylib        	0x00007fff8d9730fa __psynch_cvwait + 10
1   libsystem_c.dylib             	0x00007fff914f2f89 _pthread_cond_wait + 869
2   com.apple.JavaScriptCore      	0x00007fff890bed96 WTF::ThreadCondition::timedWait(WTF::Mutex&, double) + 118
3   com.apple.JavaScriptCore      	0x00007fff892e0d0a JSC::BlockAllocator::blockFreeingThreadMain() + 90
4   com.apple.JavaScriptCore      	0x00007fff892f636f WTF::wtfThreadEntryPoint(void*) + 15
5   libsystem_c.dylib             	0x00007fff914ee742 _pthread_start + 327
6   libsystem_c.dylib             	0x00007fff914db181 thread_start + 13
Thread 5:: JavaScriptCore::Marking
0   libsystem_kernel.dylib        	0x00007fff8d9730fa __psynch_cvwait + 10
1   libsystem_c.dylib             	0x00007fff914f2f89 _pthread_cond_wait + 869
2   com.apple.JavaScriptCore      	0x00007fff89243724 JSC::SlotVisitor::drainFromShared(JSC::SlotVisitor::SharedDrainMode) + 212
3   com.apple.JavaScriptCore      	0x00007fff89243606 JSC::MarkStackThreadSharedData::markingThreadMain() + 214
4   com.apple.JavaScriptCore      	0x00007fff892f636f WTF::wtfThreadEntryPoint(void*) + 15
5   libsystem_c.dylib             	0x00007fff914ee742 _pthread_start + 327
6   libsystem_c.dylib             	0x00007fff914db181 thread_start + 13
Thread 6:: JavaScriptCore::Marking
0   libsystem_kernel.dylib        	0x00007fff8d9730fa __psynch_cvwait + 10
1   libsystem_c.dylib             	0x00007fff914f2f89 _pthread_cond_wait + 869
2   com.apple.JavaScriptCore      	0x00007fff89243724 JSC::SlotVisitor::drainFromShared(JSC::SlotVisitor::SharedDrainMode) + 212
3   com.apple.JavaScriptCore      	0x00007fff89243606 JSC::MarkStackThreadSharedData::markingThreadMain() + 214
4   com.apple.JavaScriptCore      	0x00007fff892f636f WTF::wtfThreadEntryPoint(void*) + 15
5   libsystem_c.dylib             	0x00007fff914ee742 _pthread_start + 327
6   libsystem_c.dylib             	0x00007fff914db181 thread_start + 13
Thread 7:: JavaScriptCore::Marking
0   libsystem_kernel.dylib        	0x00007fff8d9730fa __psynch_cvwait + 10
1   libsystem_c.dylib             	0x00007fff914f2f89 _pthread_cond_wait + 869
2   com.apple.JavaScriptCore      	0x00007fff89243724 JSC::SlotVisitor::drainFromShared(JSC::SlotVisitor::SharedDrainMode) + 212
3   com.apple.JavaScriptCore      	0x00007fff89243606 JSC::MarkStackThreadSharedData::markingThreadMain() + 214
4   com.apple.JavaScriptCore      	0x00007fff892f636f WTF::wtfThreadEntryPoint(void*) + 15
5   libsystem_c.dylib             	0x00007fff914ee742 _pthread_start + 327
6   libsystem_c.dylib             	0x00007fff914db181 thread_start + 13
Thread 8:: com.apple.NSURLConnectionLoader
0   libsystem_kernel.dylib        	0x00007fff8d971686 mach_msg_trap + 10
1   libsystem_kernel.dylib        	0x00007fff8d970c42 mach_msg + 70
2   com.apple.CoreFoundation      	0x00007fff887f9803 __CFRunLoopServiceMachPort + 195
3   com.apple.CoreFoundation      	0x00007fff887feee6 __CFRunLoopRun + 1078
4   com.apple.CoreFoundation      	0x00007fff887fe6b2 CFRunLoopRunSpecific + 290
5   com.apple.Foundation          	0x00007fff8c2f2586 +[NSURLConnection(Loader) _resourceLoadLoop:] + 356
6   com.apple.Foundation          	0x00007fff8c350612 __NSThread__main__ + 1345
7   libsystem_c.dylib             	0x00007fff914ee742 _pthread_start + 327
8   libsystem_c.dylib             	0x00007fff914db181 thread_start + 13
Thread 9:
0   libsystem_kernel.dylib        	0x00007fff8d9736d6 __workq_kernreturn + 10
1   libsystem_c.dylib             	0x00007fff914f0eec _pthread_workq_return + 25
2   libsystem_c.dylib             	0x00007fff914f0cb3 _pthread_wqthread + 412
3   libsystem_c.dylib             	0x00007fff914db171 start_wqthread + 13
Thread 10:: WebCore: Scrolling
0   libsystem_kernel.dylib        	0x00007fff8d971686 mach_msg_trap + 10
1   libsystem_kernel.dylib        	0x00007fff8d970c42 mach_msg + 70
2   com.apple.CoreFoundation      	0x00007fff887f9803 __CFRunLoopServiceMachPort + 195
3   com.apple.CoreFoundation      	0x00007fff887feee6 __CFRunLoopRun + 1078
4   com.apple.CoreFoundation      	0x00007fff887fe6b2 CFRunLoopRunSpecific + 290
5   com.apple.CoreFoundation      	0x00007fff8880d371 CFRunLoopRun + 97
6   com.apple.WebCore             	0x00007fff87ac42b1 WebCore::ScrollingThread::initializeRunLoop() + 273
7   com.apple.JavaScriptCore      	0x00007fff892f636f WTF::wtfThreadEntryPoint(void*) + 15
8   libsystem_c.dylib             	0x00007fff914ee742 _pthread_start + 327
9   libsystem_c.dylib             	0x00007fff914db181 thread_start + 13
Thread 11:
0   libsystem_kernel.dylib        	0x00007fff8d9736d6 __workq_kernreturn + 10
1   libsystem_c.dylib             	0x00007fff914f0eec _pthread_workq_return + 25
2   libsystem_c.dylib             	0x00007fff914f0cb3 _pthread_wqthread + 412
3   libsystem_c.dylib             	0x00007fff914db171 start_wqthread + 13
Thread 12:: com.apple.CFSocket.private
0   libsystem_kernel.dylib        	0x00007fff8d973322 __select + 10
1   com.apple.CoreFoundation      	0x00007fff8883e4e6 __CFSocketManager + 1302
2   libsystem_c.dylib             	0x00007fff914ee742 _pthread_start + 327
3   libsystem_c.dylib             	0x00007fff914db181 thread_start + 13
Thread 13:
0   libsystem_kernel.dylib        	0x00007fff8d9736d6 __workq_kernreturn + 10
1   libsystem_c.dylib             	0x00007fff914f0eec _pthread_workq_return + 25
2   libsystem_c.dylib             	0x00007fff914f0cb3 _pthread_wqthread + 412
3   libsystem_c.dylib             	0x00007fff914db171 start_wqthread + 13
Thread 14:
0   libsystem_kernel.dylib        	0x00007fff8d9736d6 __workq_kernreturn + 10
1   libsystem_c.dylib             	0x00007fff914f0eec _pthread_workq_return + 25
2   libsystem_c.dylib             	0x00007fff914f0cb3 _pthread_wqthread + 412
3   libsystem_c.dylib             	0x00007fff914db171 start_wqthread + 13
Thread 15 Crashed:: Dispatch queue: CA::CG::Queue
0   libsystem_kernel.dylib        	0x00007fff8d973212 __pthread_kill + 10
1   libsystem_c.dylib             	0x00007fff914efaf4 pthread_kill + 90
2   libsystem_c.dylib             	0x00007fff91533dce abort + 143
3   libGLProgrammability.dylib    	0x0000000155501fcc nameTableGet + 333
4   libGLProgrammability.dylib    	0x0000000155501e5b glpNameTableGetVariableLikeObject + 35
5   libGLProgrammability.dylib    	0x000000015557c3dc glpSAVariableDeclaration + 216
6   libGLProgrammability.dylib    	0x00000001555768ba glpSANode + 7890
7   libGLProgrammability.dylib    	0x0000000155576926 glpSANode + 7998
8   libGLProgrammability.dylib    	0x000000015557867c glpSANode + 15508
9   libGLProgrammability.dylib    	0x00000001554e2895 glpCompileShader + 197
10  libGLProgrammability.dylib    	0x000000015550dba0 ShCompile + 150
11  GLEngine                      	0x000000015530fb79 gleShaderParse + 365
12  GLEngine                      	0x0000000155236728 glCompileShaderIncludeARB_Exec + 364
13  com.apple.QuartzCore          	0x00007fff91a6ab45 CA::OGL::GLContext::create_shader(CA::OGL::ContextState const*, CA::OGL::GLShader const*, int) + 405
14  com.apple.QuartzCore          	0x00007fff91a6a8d8 CA::OGL::GLContext::get_shader(CA::OGL::ContextState const*) + 514
15  com.apple.QuartzCore          	0x00007fff91a6a00e CA::OGL::GLContext::update_shader() + 248
16  com.apple.QuartzCore          	0x00007fff91a69c19 CA::OGL::GLContext::update_state() + 43
17  com.apple.QuartzCore          	0x00007fff91a69b6b CA::OGL::GLContext::draw_elements(CA::OGL::PrimitiveMode, unsigned int, unsigned short const*, CA::OGL::Vertex const*, unsigned int, unsigned int, CA::OGL::ClipPlane const*) + 325
18  com.apple.QuartzCore          	0x00007fff91a699f0 CA::OGL::Context::array_flush() + 62
19  com.apple.QuartzCore          	0x00007fff91a745da CA::OGL::Context::ClippedArray::next_rect(CA::Bounds&) + 280
20  com.apple.QuartzCore          	0x00007fff91af0f2a CA::OGL::fill_rectilinear_rect(CA::OGL::Context&, CA::OGL::RectState const&) + 860
21  com.apple.QuartzCore          	0x00007fff91a30601 CA::OGL::fill_rect(CA::OGL::Context&, CA::OGL::RectState const&) + 180
22  com.apple.QuartzCore          	0x00007fff91b209d5 CA::CG::FillRects::draw_shape(CA::CG::Renderer&) const + 469
23  com.apple.QuartzCore          	0x00007fff91b20bff CA::CG::FillRects::draw_shape_and_color(CA::CG::Renderer&) const + 399
24  com.apple.QuartzCore          	0x00007fff91b15f29 CA::CG:

rawOp::render(CA::CG::Renderer&) const + 2879
25  com.apple.QuartzCore          	0x00007fff91b25df3 CA::CG::Queue::render_callback(void*) + 209
26  libdispatch.dylib             	0x00007fff882e90b6 _dispatch_client_callout + 8
27  libdispatch.dylib             	0x00007fff882ea47f _dispatch_queue_drain + 235
28  libdispatch.dylib             	0x00007fff882ea2f1 _dispatch_queue_invoke + 52
29  libdispatch.dylib             	0x00007fff882ea1c3 _dispatch_worker_thread2 + 249
30  libsystem_c.dylib             	0x00007fff914f0cab _pthread_wqthread + 404
31  libsystem_c.dylib             	0x00007fff914db171 start_wqthread + 13