redid my overclock

greenbrucelee · 16 Mar 2013 at 00:24

i2500k @ 4.7 with core temps at 67 75 77 73 @ 1.38 although I am still trying to get to the bottom of my intermittent cold boot problem.

wazza300 · 16 Mar 2013 at 00:29

what board? its normal to bootloop once from cold sometimes but 3 or 4 times is a no no

greenbrucelee · 16 Mar 2013 at 00:36

Asus sabertooth z77,noctua nh-d14

I have had a dodgy cold boot issue since I started overclocking the chip. I can use the system all day with out issue then leave it for 24 hours then I will get a cold boot restart.

8 pack has been giving me advice about the vccsa because its a memory controller issue. He has now advised me to change the vccsa to 1.1 which I have done as my vcore at 1.38 is red but what I really need to know is does red really mean lay off the voltage increase.

wazza300 · 16 Mar 2013 at 00:40

well its personal choice,for me anything below 1.4v cpu voltage and 80c temps is ok

I have a 2600k chip that needs 1.344v for 4.5ghz,it just depends on each cpu

it doesn't cold boot loop though,if your running 16gb of memory you might need more vccsa,but 8gb is ok at stock 1.05v vccsa

one/two clicks more dram voltage might help cure the cold boots,you would need to test,i use 1.55v myself

greenbrucelee · 16 Mar 2013 at 00:43

I have the dram voltage at 1.65, vccsa at 1.1, vcore at 1.38. I am getting there as the cold boot issue happened 3 or 4 times a month now its twice.

wazza300 · 16 Mar 2013 at 00:46

its either dram or vccsa,could also be a bios bug with sb chip on z77 board idk

greenbrucelee · 16 Mar 2013 at 00:50

I was thinking maybe I should flash the BIOS since theres been 3 or 4 versions since I got the board but I heard that asus have had a couple of dodgy revisions lately.

Does the the voltages going red mean lay off?

wazza300 · 16 Mar 2013 at 00:52

its just asus's way of telling you to be aware of what voltages your using I guess

youll be ok at 1.38v,is that what it uses at 100% stress in cpu-z?

greenbrucelee · 16 Mar 2013 at 00:57

Well I will go to the 1.1 vccsa as 8 pack advised because before I was at 1.05 so I am getting there. 1.38 in BIOS @ 4.7 stressed in IBT 67 75 77 73. If I were to stress in prime I would be 10 degrees down on those temps, so I think it's safe to say I am stable it's just the memory issue.

I will stay at the 1.1 vccsa and 1.38 vcore and see if anymore cold boot issues happen.

No it gets nowhere near 1.38 in cpu-z more like 1.35 but if I set 1.36 in the BIOS I get a BSOD.

wazza300 · 16 Mar 2013 at 01:12

are you using offset cpu voltage or fixed 1.38v?

with offset the cpu downclocks to 1.6ghz at idle/web browsing ect and switches to full speed 4.7ghz and voltages if stressed/playing games ect

1.2v is the max safe for vccsa so you can try a touch more to see if it cures cold boots

greenbrucelee · 16 Mar 2013 at 01:16

I switched from a + ofset at 0.05 to a fixed vcore with all cstates disabled but speedstep enabled so it throttles down.

wazza300 · 16 Mar 2013 at 01:18

1.35v in cpu-z is down to vdroop from 1.38v so your not actually using 1.38v due to the vdroop under load

greenbrucelee · 16 Mar 2013 at 01:21

Yeah I thought that might be the case but cant figure out what it should be but then again I shouldn't change anything at the moment because I am a bit drunk.

wazza300 · 16 Mar 2013 at 01:23

oo you shouldn't drink n overclock

greenbrucelee · 16 Mar 2013 at 01:27

I did many years ago with a p2 that had a pentium overdrive on it to give it an extra 33MHz I nearly set fire to my bed because I fell asleep whilst drinking whiskey.

PS I like your robocop homage, emile antanonoswski was my favorite bad guy (one on far left) as he look like my borthers friend but with less hair

wazza300 · 16 Mar 2013 at 01:32

haha mine too

hes in rocky,the one in a wheelchair in plaster and rocky signs his head

greenbrucelee · 16 Mar 2013 at 01:34

yeah I know. I wonder if he has been in any more films where he is disabled or mortally wounded