vDrop: trust the BIOS or Windows? Tags: Motherboards Asus BIOS Speedfan Displays Overclocking Last response: February 8, 2008 7:14 AM in Overclocking Share fepple January 13, 2008 4:04:57 PM Hello! I have a Asus P5K-E with a Q6600. In the BIOS I set the vCore but then when I view it in CPU-Z/SpeedFan it displays differently. Normal enough vDrop. The difference in the reading is: BIOS: 1.425v Idle: 1.31v Load: 1.30v So my question is, do I trust the BIOS readings or the ones in Windows? Cheers! More about : vdrop trust bios windows | E-mail me updates | Report abuse Register or log in to remove bob8701 January 13, 2008 4:07:29 PM windows | Report abuse bildo123 January 13, 2008 5:11:08 PM I was told the reading from the lastest version of CPU-Z is the real-time voltage going to the cpu. So trust the one in windows. Seems as though your Vdrop is pretty big though at .115V's. | Report abuse cnumartyr January 13, 2008 5:14:13 PM First, what BIOS version? 0906, 0602, 0603, 0706? Long story short.. BIOS setting is VID. Then it Offsets it to actual idle voltage (read by CPU-Z). This is vDrop. vDroop is Idle -> Load. | Report abuse fepple January 14, 2008 10:11:56 AM Indeed I was worried about the vDrop, I was just reporting the Load and Idle voltages for completeness sake. The voltages I reported are for 0906 BIOS, though I got a similar vDrop on 0502 and 0602. I was supprised to see it on 0602 as well because most reports I've seen suggested it wasnt present. If I set the voltage to 1.425v then reboot and go back to the BIOS and look in the Hardware Monitor it will report the voltage as 1.30v (ish, I'm at work atm). So I am going to distrust the BIOS setting and instead believe the BIOS reading/CPU-Z/SpeedFan. Also, the BIOS Hardware Monitor version of the vCore more closely matchs the stability I would expect when pushing the clock speed to 3.6Ghz. Thanks! | Report abuse fbm211 February 8, 2008 7:14:59 AM Thats a kickass rig you got cnumartyr...If you dont mind me asking how would I oc my shader clock. ntune only does core/memory.I have the evga8800gts(g92) | Report abuse Register or log in to remove Ask the community Publish Tom's Hardware>Forum>Overclocking>vDrop: trust the BIOS or Windows?> Related ressources: ForumQ6600: Core Voltage/vCore ( bios ) != CPU Voltage Control (NOT vDROP ) ForumMassive V-Drop on P5Q SE 2, need help ForumVDrop ? VDroop? Loaded VCore? Find the secret to those values in here! ForumPlease help OC: q6600 and gigabyte GA-P31-S3G (F5 bios ) Forum6pin pcie into 8pin mobo, "noob" looking for advice ForumI7 920 Refuses to OC with 1.25v ram ForumPhenom 955 be voltage ForumWhen overclocking a system is it wise to trust auto settings in bios ? ForumE7200 3.31GHz, any more headroom? ForumQ9450 Temperature Question - Core Temps ForumNeed help with overclocking Asus 750i - Q6600 at 3.4ghz ForumTrying 3Ghz Q6600 on the Asus striker extreme ForumQ6600 Mid VID, Supprisingly reached 3.8 at Spec 1.5v, 8 Hour + Stable! Forum2 or 4 gb on 32bit OS Forum~The E8400 preparation thread~ ForumPlease help! - Bios cpu voltage vs CPUZ core voltage?? ForumFixed Voltage ForumQ6600 @ 3.24 with 1.3v (Bios) any good? ForumCan't get same overclock after adding 2GB of RAM and flashing new BIOS ForumGA-P35-DS3L BIOS resets and no OC More resources Read discussions in other Overclocking categories CPUs Motherboards Memory Chipsets Heatsinks Water Cooling Intel AMD !