E6400 OC shows only 1 core

Richard Shepherdson · Jul 26, 2007, 07:58 AM

Strange one here, hope someone can help.

Running E6400 on DS3 V3.3

OC at 3.2 nice and stable, Temps 25-29 idle, 56 loaded. Vcore 1.35

When I push FSB to 425, Vcore 1.4, speedfan, orthos & TAT all report that there is only 1 core in my processor.

Sometimes its fine other times it reports only the one.

Any ideas?????

tkpenalty · Jul 26, 2007, 08:03 AM

Instability.

panchoman · Jul 26, 2007, 03:58 PM

you fried a core? lol. if you put the speed back to stock, does it show both cores?

Richard Shepherdson · Jul 26, 2007, 04:01 PM

Quote:

Originally Posted by panchoman

you fried a core? lol. if you put the speed back to stock, does it show both cores?

that was my first fear, but when I go back to 3.2 all is well.

Can anyone enlighten me.

Is (G)Mch volateg northbridge?

and

Is FSB voltage Southbridge?

or the other way around.

panchoman · Jul 26, 2007, 04:12 PM

mch would be your northbridge voltage, uping that will able you to raise the fsb more, intel chipsets love the extra voltage. it's probably instability that's causing only 1 core to show up. uping the vcore if you can might add stability, otherwise you'll want to back down.

Jul 26, 2007, 07:58 AM	#1
Richard Shepherdson Join Date: Jul 2006 Posts: 114 (0.05/day) Thanks: 12 Thanked 6 Times in 6 Posts System Specs	E6400 OC shows only 1 core Strange one here, hope someone can help. Running E6400 on DS3 V3.3 OC at 3.2 nice and stable, Temps 25-29 idle, 56 loaded. Vcore 1.35 When I push FSB to 425, Vcore 1.4, speedfan, orthos & TAT all report that there is only 1 core in my processor. Sometimes its fine other times it reports only the one. Any ideas?????

Processor:	C2D E8400 @ 4000
Motherboard:	Gigabyte DS3
Cooling:	Stock cooler from E6400
Memory:	Crucial 800MHz/PC2-6400 Ballistix
Video Card:	Sapphire Toxic HD6850 @ 950/1150

Jul 26, 2007, 08:03 AM	#2
tkpenalty Eligible for custom title Join Date: Sep 2006 Location: Australia, Sydney Posts: 5,023 (2.07/day) Thanks: 412 Thanked 361 Times in 266 Posts System Specs	Instability. __________________ AMD Radeon X1950~HD4000 Support Clubhouse “Mac: "Woah, what are you doing?" Mac says as he levitates in the air. PC: "Playing Half-Life 2, this is my gravity gun." Mac: "Well I can sort of do that." PC: "Technically Mac, you have to become me first."” -From_Nowhere

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Video Card:	Gigabyte 8800GT 512MB Ultra Durable 2\X1950PRO Extreme 256MB
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Sound Card:	ALC889\ALC888
PSU:	Corsair VX450\Coolermaster iGreen 600W
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Processor:	Amd Athlon X2 4600+ Windsor(90nm) EE(65W) @2.9-3.0 @1.45
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PSU:	Antec NeoHe 550-manufactured by seasonic -replacement to the discontinued smart power series
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Jul 26, 2007, 03:58 PM	#3
panchoman Sold my stars! Join Date: Jul 2007 Posts: 6,650 (3.11/day) Thanks: 339 Thanked 1,227 Times in 1,036 Posts System Specs	you fried a core? lol. if you put the speed back to stock, does it show both cores?

Jul 26, 2007, 04:12 PM	#5
panchoman Sold my stars! Join Date: Jul 2007 Posts: 6,650 (3.11/day) Thanks: 339 Thanked 1,227 Times in 1,036 Posts System Specs	mch would be your northbridge voltage, uping that will able you to raise the fsb more, intel chipsets love the extra voltage. it's probably instability that's causing only 1 core to show up. uping the vcore if you can might add stability, otherwise you'll want to back down.

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