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[Solved] Q9550 C1 core voltage 1.50V ?

Forum CPU & Components : CPUs - [Solved] Q9550 C1 core voltage 1.50V ?

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Best answer from jsc.

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hello everyone i need little help here

i just see that on either everest or CPU-Z that my Q9550 core voltage is 1.50V
on bios i set auto for overvoltage setting and enable C1E and speedstep
is that normal ?
since from what i read 1.30V is the normal voltage

the weird things is after i restart it back to 1.30V
the good things is i didn't see the CPU overheating (the temp around 60C)

hope people that know about this especially overclocker can help give me more information
sorry for being paranoid

thanks in advance!

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Core 2 Quad and Duo Temperature Guide
http://www.tomshardware.com/forum/ [...] ture-guide

Intel's max recommended core voltage for the 45 nm C2's is 1.3625 volts.

Do not OC with the voltages set on AUTO.

Voltage 0.85V – 1.3625V

that is the accepted voltage from Intel. 1.5 is.... well... doable but not for stock. you need to go into your bios and set 1.36 volts and see the highest FSB you can achieve (if you overclock) or go into core temp and see what your VID is and set it to that. auto on voltage = SUCKS.

------------------------------ E8500 oc'd 4.5 @ 1.44 vcore with 92mm Zalman
ATI 4850 oc'd 680/1158 with aftermarket Zalman
Asus P5Q Pro mobo
2 gigs 800 Corsair ram @ 4-4-4-12
Reply to werxen

Did you overclock it with the bios voltage on auto? That's well out of spec, so I doubt it is what your CPU is supposed to be running at.

------------------------------ Asus P6T deluxe
i7 965 @ 4.2GHz (200*21), 1.384V
12GB Corsair Dominator DDR3-1600 CAS 7
Reply to cjl

Best answer

Message quoted 2 times

Reply to jsc

jsc wrote :

Intel's max recommended core voltage for the 45 nm C2's is 1.3625 volts.
Do not OC with the voltages set on AUTO.

No doubtman... turn the Auto OFF!!

I usualy start my OC fun @ 1.4 V and keep lowering as much as possible to get the lowest V while still being stable.

Reply to grieve

jsc wrote :

Core 2 Quad and Duo Temperature Guide
http://www.tomshardware.com/forum/ [...] ture-guide

Intel's max recommended core voltage for the 45 nm C2's is 1.3625 volts.

Do not OC with the voltages set on AUTO.

Ok, there seems to be huge misconceptions on Intel's VID settings listed on the CPU page. If you look closely at the Intel docs you will notice that ABSOLUTE MAX voltage for 45nm is 1.45v NOT 1.3625v.

See: http://download.intel.com/design/p [...] 318726.pdf
Page 19

Absolute MAX is defined as the point where actual harm to the CPU can occur. You should be below this for safe every day Ocing. The Intel voltages listed under VID are the possible voltage range AT STOCK. NOT when Ocing. At any rate, if CPU is kept cool you can go above 1.45v assuming you will upgrade in 2-3 years.

Message edited by shadow703793 on 08-14-2009 at 03:46:13 AM

------------------------------

http://farm3.static.flickr.com/2617/3815217176_0a5be7955d_o.gif

http://farm4.static.flickr.com/3553/3818083596_1a772f7162_o.gif

Reply to shadow703793

thanks for the reply everyone

i didn't do any OC and i using default setting for the bios (all on default "auto" for voltage setting)
it said the VID is 1.25V on the bios and cpu core voltage on auto setting is 1.20V

i don't know whether the Everest/CPU-Z miss read the voltage or not (from what i read CPUZ not 100% accuracy) but i still monitoring this PC
right now the CPU core stay on 1.312V
and for other Voltage
+3.3 V 3.25 V
+12 V 11.77 V
+5 V Standby 4.92 V
VBAT Battery 3.06 V
3.3V Dual 3.25 V
North Bridge Core 1.32 V
DIMM 1.50 V
GPU Vcc 3.24 V

Sensor Properties
Sensor Type Winbond W83627DHG (ISA 290h)

if the voltage goes high again, i think no other way than set it to VID voltage
i will post the update ASAP (tomorrow by late) thanks alot for the information everyone!!

Reply to slyphnier

If you're not overclocking, then just manually set the voltage in the bios to 1.25V. CPUZ will read it as less than 1.25V in windows, which is normal. This will give you lower temps.

Reply to orangegator

Whoops. You are right, shadow. That's what I get for not examining the source docs closely enough. Thanks.

Time to revisit my E5200 OC (3.75 GHz @ 1.37 volts).

Message edited by jsc on 08-14-2009 at 07:40:43 PM

Reply to jsc

^No problem. Glad I could help. (Don't worry, you aren't the only one who was confused by Max voltage vs VID) At any rate, like me and overshocked had said many times, for normal use it's fine to go above 1.45v providing you have good cooling. By the time CPU dies you'd be over due for an upgrade. However, if you need 24/7 use with high reliability it's best to stay below the Max VID listed by Intel. My guess is assuming good temps you could hit 4Ghz at 1.42-1.46v on that E5200.

Message edited by shadow703793 on 08-14-2009 at 10:55:23 PM

------------------------------

Reply to shadow703793

i figure out that the Core voltage setting goes higher because NVIDIA control panel saved at 1.35V (my mobo using nforce 790i ultra chipset) though i never changed the value

when i am creating new profile, the default value is 1.15V
i guess this the one messing with my cpu core voltage, right now i set to 1.15V ^^
the weird things is that it wont use the profile i created & save

Reply to slyphnier

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