diff --git a/src/atombios_crtc.c b/src/atombios_crtc.c
index 5c26ef8..6b0a439 100644
--- a/src/atombios_crtc.c
+++ b/src/atombios_crtc.c
@@ -228,14 +228,20 @@ atombios_crtc_set_pll(xf86CrtcPtr crtc, DisplayModePtr mode, int pll_flags)
     memset(&spc_param, 0, sizeof(spc_param));
     if (IS_AVIVO_VARIANT) {
 	uint32_t temp;
+	unsigned long clk;
 
 	if (IS_DCE3_VARIANT && mode->Clock > 200000) /* range limits??? */
 	    pll_flags |= RADEON_PLL_PREFER_HIGH_FB_DIV;
 	else
 	    pll_flags |= RADEON_PLL_PREFER_LOW_REF_DIV;
 
+	if (info->pll.reference_freq == 1432) {
+	    clk = mode->Clock - 10;
+	    //clk = mode->Clock + 10;
+	} else
+	    clk = mode->Clock;
 
-	RADEONComputePLL(&info->pll, mode->Clock, &temp, &fb_div, &ref_div, &post_div, pll_flags);
+	RADEONComputePLL(&info->pll, clk, &temp, &fb_div, &ref_div, &post_div, pll_flags);
 	sclock = temp;
 
 	/* disable spread spectrum clocking for now -- thanks Hedy Lamarr */