Music playing problem

[thedude26]

Hello,

I've a big problem with my Amd Mac, when i'm listenting to mp3 i,n Itunes, or when i'm playing to virtual instruments in garageband, the sound is laggy it's sound like a scratched CD, it plays correctly but regularly it "lags", in garageBand it's each second or less and in itunes each 30 seconds.

 

There is my specs

 

AMD 4200+ @ 2.2Ghz

1024 Mo @ 667Mhz

MotherBoard M2n-MX SE (MCP61 and Nforce 430)

HDD SATA 160Go

7300GS 256 Mo with QE et CI

Chameleon 2 EFI

 

Xbench

Results	97.13	
 System Info		
	 Xbench Version		1.3
	 System Version		10.5.6 (9G55)
	 Physical RAM		1024 MB
	 Model		MacBookPro4,1
	 Drive Type		ST3160815AS ST3160815AS
 CPU Test	79.78	
	 GCD Loop	120.49	6.35 Mops/sec
	 Floating Point Basic	93.04	2.21 Gflop/sec
	 vecLib FFT	47.41	1.56 Gflop/sec
	 Floating Point Library	100.06	17.42 Mops/sec
 Thread Test	138.67	
	 Computation	101.60	2.06 Mops/sec, 4 threads
	 Lock Contention	218.31	9.39 Mlocks/sec, 4 threads
 Memory Test	94.70	
	 System	109.19	
		 Allocate	161.82	594.27 Kalloc/sec
		 Fill	112.99	5493.72 MB/sec
		 Copy	80.35	1659.66 MB/sec
	 Stream	83.60	
		 Copy	73.41	1516.22 MB/sec
		 Scale	72.96	1507.39 MB/sec
		 Add	97.57	2078.38 MB/sec
		 Triad	97.38	2083.16 MB/sec
 Quartz Graphics Test	195.65	
	 Line	209.91	13.98 Klines/sec [50% alpha]
	 Rectangle	197.97	59.11 Krects/sec [50% alpha]
	 Circle	192.59	15.70 Kcircles/sec [50% alpha]
	 Bezier	126.65	3.19 Kbeziers/sec [50% alpha]
	 Text	377.06	23.59 Kchars/sec
 OpenGL Graphics Test	108.80	
	 Spinning Squares	108.80	138.02 frames/sec
 User Interface Test	131.17	
	 Elements	131.17	602.00 refresh/sec
 Disk Test	50.41	
	 Sequential	110.06	
		 Uncached Write	79.81	49.00 MB/sec [4K blocks]
		 Uncached Write	123.71	69.99 MB/sec [256K blocks]
		 Uncached Read	110.59	32.37 MB/sec [4K blocks]
		 Uncached Read	149.56	75.17 MB/sec [256K blocks]
	 Random	32.69	
		 Uncached Write	11.40	1.21 MB/sec [4K blocks]
		 Uncached Write	77.91	24.94 MB/sec [256K blocks]
		 Uncached Read	70.78	0.50 MB/sec [4K blocks]
		 Uncached Read	130.01	24.12 MB/sec [256K blocks]

 

I use the voodoo Kernel rev 1, and VoodooHDA 0.2, and also NforceATAtest.kext by medevil.

I realy don't understand because my Cpu isn't overload, neither my ram.

This was the same with HDAenabler.

 

Thanks

[thedude26]

No ideas ?

 

I don't know if it's linked but in system prof there is nothng in "integrated audio"