7c difference between cores?

MadCow · May 29, 2008

Right now my X2 4400+ is idling at 37c,30c according to coretemp. This seems really weird considering both cores are on 1 die, 7c seems like a huge difference. Is this normal? It seems to even out more as it gets hotter though, which makes even less sense.

HTC · May 29, 2008

MadCow said:
Right now my X2 4400+ is idling at 37c,30c according to coretemp. This seems really weird considering both cores are on 1 die, 7c seems like a huge difference. Is this normal? It seems to even out more as it gets hotter though, which makes even less sense.

Mine gives 3 on idle and zero under load (prime95). I lapped both the CPU and the CPU's cooler, though.

I use Real Temp to record both low and high temps of both cores.

Jarman · May 29, 2008

perfectly normal on a non lapped chip. Also depends on ur HSF. The temps on my quad vary quite significantly between the cores. My old opteron 165 was the same.

Kreij · May 29, 2008

I just installed a qx9650 and the cores vary a lot (23, 27, 34, 46) @ idle
I re-installed the cooler 3 times (cleaned and re-gooped each time) with no change at all.
Chalking it up to a non-lapped chip as my qx6700 did not have that level of temperature difference.
Not sure I want to lapp the chip. It was rather pricey.

jbruneau · May 29, 2008

I have the same problem on my Opteron 170, I've got a 10 degree C difference between cores when stressing with OCCT.

echo75 · May 29, 2008

2-4 C difference here , and i didnt lap anything.

jbruneau · May 30, 2008

I haven't lapped anything, of course, but I understand that the IHS is much thicker than you'd think.

I don't want to 'scratch' the surface or rub off the nice lettering though

!

I generally apply my thermal paste using a razor blade, helps to apply an even amount, so that a small unified film covers the entire surface. It fills in the gaps all by itself, then I mount the heatsink. I always use AC's Cleaning Kit for cleanup.

It has worked great for me for many years now! Ceramique is the best thing I have found so far, it is outperforming AS5

!

MadCow · May 30, 2008

My HSF is lapped, the cooler kind of is. Well at least it's fairly common problem.

Processor	Athlon 64 X2 4400+ @2.6 GHz
Motherboard	DFI LanParty UT CFX3200
Cooling	120mm Yate Loon fan intake, 82mm ex-PSU fan exhaust
Memory	2048 mb. of cheap DDR400 RAM w/cheap heatspreaders
Video Card(s)	Sapphire+HIS X1950 PRO, Crossfired@635/709
Storage	WD 250 GB SATA
Display(s)	Samsung 216BW
Case	No-name ATX case (modded to hell)
Audio Device(s)	SB X-FI OEM
Power Supply	Nikao Cool Power 500W (34a@12v)
Software	Windows XP PRO SP2

System Name	HTC's System
Processor	Ryzen 5 2600X
Motherboard	Asrock Taichi X370
Cooling	NH-C14, with the AM4 mounting kit
Memory	G.Skill Kit 16GB DDR4 F4 - 3200 C16D - 16 GTZB
Video Card(s)	Sapphire Nitro+ Radeon RX 480 OC 4 GB
Storage	1 Samsung NVMe 960 EVO 250 GB + 1 3.5" Seagate IronWolf Pro 6TB 7200RPM 256MB SATA III
Display(s)	LG 27UD58
Case	Fractal Design Define R6 USB-C
Audio Device(s)	Onboard
Power Supply	Corsair TX 850M 80+ Gold
Mouse	Razer Deathadder Elite
Software	Ubuntu 19.04 LTS

Processor	Opty 165 @ 3011 MHz
Motherboard	DFI NF4 SLI-D
Cooling	Koolance Exos, DD TDX/Maze4 GPU
Memory	2GB G.Skill HZ DDR 500 Kit
Video Card(s)	XFX Geforce 7900GT
Storage	> 1.5 TB
Display(s)	XEROX 19" TFT
Case	Coolermaster ATCS 101
Audio Device(s)	Creative X-FI
Power Supply	OCZ 850W
Software	XP serv pack 2

System Name	Desktop
Processor	AMD Opteron 170 (2000MHz --> 2750MHz OCd)
Motherboard	ASUS A8N32-SLi Deluxe
Cooling	ThermalRight Ultra 120
Memory	Corsair TWINX2048-4000PT (DDR500 --> DDR550 OCd)
Video Card(s)	BFG GeForce 8600GTS OC 256MB (775 Core / 1135 Mem / 1637 Shader)
Storage	WD Caviar SE16 250GB SATA-II, 2xWD Caviar SE16 320GB SATA-II RAID0
Display(s)	Samsung SyncMaster 2232GW 22" WideScreen
Case	Antec PerformanceOne P160W
Audio Device(s)	Creative SoundBlaster Audigy 4 Gamer
Power Supply	OCZ ModStream 520W
Software	Windows XP Professional w/ SP3
Benchmark Scores	3DMark06: 6264, PCMark06: 5680

System Name	Main
Processor	Q6700 @ 3.5Ghz (with 1.50 Vcore)
Motherboard	P5K
Cooling	Xigmatek HDT S1283 (amazing performance)
Memory	Corsair 800mhz 4GB @ 864mhz
Video Card(s)	Asus 8800GT@ 720/1800/2100,blue Pcb with 92cm Glaciator cooler(4870 still under testing)
Storage	Seagate 250GB SATA , 500GB eSATA
Display(s)	LG Flatron 19"
Case	Antec Designer (modded)
Power Supply	Corsair VX 550W
Software	Win XP Pro SP2
Benchmark Scores	3Dmark06 = 15,253 for 8800GT, 3Dmark06 = 15,807 for HD 4870

7c difference between cores?

MadCow

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HTC

Jarman

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Kreij

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jbruneau

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echo75

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jbruneau

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MadCow

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