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E8600 strange behaviour

lukankata

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Processor Е8600 4Ghz
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I recently bought this CPU.
It really easily went up to 4GHz and is very stable at that frequency.
When the CPU is idle its frequency is 2400 (400*6) and when is stressed it gets 4000 (400*10).
So far nothing peculiar.
But sometimes when the CPU is stressed with some heavy software program it stays at 2400. I have to reboot in order to fix this. After the reboot everything is normal. It gets to 4000 when at load.
For example, i wanted it to calculate factorial of 80000 or to test my memory using the everest built-in benchmark. It stayed at 2400, didn't get to 4000.
Although this 'problem' is rare, is there a way to make it stop behave like that in those cases?:confused:
 
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go into your bio's and disable speed step
 
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Try to disable CPU Enhanced Halt (C1E) and CPU EIST Function in the Advanced BIOS Features. Sounds like your multiplier is being lowered.
 
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Sounds like your multiplier is being lowered.

that's what speed step does
 
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lukankata

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Processor Е8600 4Ghz
Motherboard Ga-P35-DS3
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Storage 500GB Seagate 16Mb
Display(s) Samsung 226BW
Case CM Cavalier
Audio Device(s) on-board audio *.0
Power Supply Cooler Master 600W
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Won't disabling speed step make it always be at 4GHz?
 
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Video Card(s) ASUS TUF Gaming Radeon RX 7900 XTX OC Edition 24GB GDDR6
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Video Card(s) RTX 4080 FE
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Audio Device(s) Bose Companion II speakers, Corsair - HS70 PRO headphones
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Mouse Logitech G502
Keyboard Logitech Orion Spectrum G910
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that's my understanding from your post.
 

lukankata

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Joined
Jul 28, 2008
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Processor Е8600 4Ghz
Motherboard Ga-P35-DS3
Memory 4*1Gb SuperTalent DDR2
Video Card(s) Sapphire Hd4870
Storage 500GB Seagate 16Mb
Display(s) Samsung 226BW
Case CM Cavalier
Audio Device(s) on-board audio *.0
Power Supply Cooler Master 600W
Software Windows Vista Ultimate 64Bit
Thanks for the advice and help. I'll definitely give it a try. :)
 
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