diff --git a/src/burn/drv/irem/d_m92.cpp b/src/burn/drv/irem/d_m92.cpp
index a9406977d..bcff54fb3 100644
--- a/src/burn/drv/irem/d_m92.cpp
+++ b/src/burn/drv/irem/d_m92.cpp
@@ -1435,7 +1435,6 @@ void __fastcall m92WritePort(UINT32 port, UINT8 data)
 		case 0x9c: pf_control[3][4] = data; set_pf_info(2, data); return;
 		case 0x9d: pf_control[3][5] = data; return;
 		case 0x9e: pf_control[3][6] = data;
-			m92_raster_irq_position = ((pf_control[3][7]<<8) | pf_control[3][6]) - 128;
 			return;
 		case 0x9f: pf_control[3][7] = data;
 			m92_raster_irq_position = ((pf_control[3][7]<<8) | pf_control[3][6]) - 128;
@@ -1784,6 +1783,7 @@ static INT32 DrvExit()
 	
 	nPrevScreenPos = 0;
 	m92_kludge = 0;
+	m92_raster_irq_position = 0;
 	nScreenOffsets[0] = nScreenOffsets[1] = 0;
 
 	return 0;
@@ -2053,7 +2053,6 @@ static void scanline_interrupts(INT32 prev, INT32 segment, INT32 scanline)
 		VezSetIRQLineAndVector(0, (m92_irq_vectorbase + 0)/4, VEZ_IRQSTATUS_ACK);
 		nCyclesDone[0] += VezRun(10);
 		VezSetIRQLineAndVector(0, (m92_irq_vectorbase + 0)/4, VEZ_IRQSTATUS_NONE);
-
 	}
 }
 
@@ -2067,7 +2066,7 @@ static INT32 DrvFrame()
 
 	compile_inputs();
 
-	INT32 multiplier=3;
+	INT32 multiplier=8;
 	nInterleave = 256*multiplier;
 
 	// overclocking...
@@ -2076,10 +2075,6 @@ static INT32 DrvFrame()
 	nCyclesTotal[1] = (INT32)((INT64)(7159090 / 60) * nBurnCPUSpeedAdjust / 0x0100);
 	nCyclesDone[0] = nCyclesDone[1] = 0;
 
-	if (pBurnSoundOut) {
-		memset (pBurnSoundOut, 0, nBurnSoundLen * 2 * sizeof(INT16));
-	}
-
 	for (INT32 i = 0; i < nInterleave; i++)
 	{
 		VezOpen(0);
diff --git a/src/burn/snd/iremga20.cpp b/src/burn/snd/iremga20.cpp
index 97e34ce86..fcc57150d 100644
--- a/src/burn/snd/iremga20.cpp
+++ b/src/burn/snd/iremga20.cpp
@@ -303,40 +303,19 @@ INT32 iremga20_scan(INT32 device, INT32 nAction, INT32 *pnMin)
 	if (device > nNumChips) bprintf(PRINT_ERROR, _T("iremga20_scan called with invalid chip %x\n"), device);
 #endif
 
-	chip = &chips[device];
-
-	struct BurnArea ba;
-	char szName[16];
-	
-	if ((nAction & ACB_DRIVER_DATA) == 0) {
-		return 1;
-	}
-	
 	if (pnMin != NULL) {
 		*pnMin = 0x029678;
 	}
 	
+	chip = &chips[device];
 
-	for (INT32 i = 0; i < MAX_GA20; i++)
-	{
-		sprintf(szName, "IREM GA20 #%d Regs", device);
-		ba.Data		= &chip->regs;
-		ba.nLen		= 0x40 * sizeof(UINT16);
-		ba.nAddress	= 0;
-		ba.szName	= szName;
-		BurnAcb(&ba);
-
-		sprintf(szName, "IREM GA20 #%d channels", device);
-		ba.Data		= &chip->channel;
-		ba.nLen		= 4 * sizeof(IremGA20_channel_def);
-		ba.nAddress	= 0;
-		ba.szName	= szName;
-		BurnAcb(&ba);
-
+	if ((nAction & ACB_DRIVER_DATA)) {
+		SCAN_VAR(chip->channel);
+		SCAN_VAR(chip->regs);
 		SCAN_VAR(chip->frequency);
 		SCAN_VAR(chip->gain);
 		SCAN_VAR(chip->output_dir);
 	}
-	
+
 	return 0;
 }