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Help OC Q6600 on 790i FTW - Page 2

post #11 of 16
Thread Starter 
Quote:
Originally Posted by SnuffleKitty View Post
Make sure these values are all set from auto to 100. Otherwise they will increase with the FSB, leading to possible system instability.

PCIe x16_1 & x16_2, MHz [100]
PCIe x16_3, MHz [100]
SPP<->MCP Ref Clock, MHz [100]


Yeah that's 1.42v WIth vDroop, which is nuts. As aramil said, lower it to about 1.35 and test for stability. You'll notice that your Load Temps are a lot lower with the decreased Vcore. It would be nice to know what your Q6600's VID is.

CPU Core [1.35]

Take for example my Q6600 with has a VID of 1.325. That's the high end in so far as Q6600 VIDs go. High VID is pretty lame. Basically, someone with lower VID may be able to reach an overclock with a VCore of 1.30 that you wouldn't be able to reach without increasing your VCore to 1.36. That's just a rough example obviously. More VCore equals more heat. It's no fun.

- Nim
Thank you so much for trying to help me.

What is VID?

I lowered my voltage and just started running prime. I'll let it sit overnight.

As for my case, I'm thinking it could definitely be the problem. I ordered a corsair 600T in white and I should get it before the weekend. I hope to move everything into the new case and keep working with you guys. I hope you stick around.
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post #12 of 16
yeah no Problem (always here anyway!)

CPU VID is the voltage that intel assigns your chip when manufactured. ie. this is the vCore that this chip needs to run @ stock speed.

Realtemp or coretemp can tell you this value.

Basically this is your starting point of your OC so the lower the better, mine is VID:1.2875v

If your prime run goes well I would drop the Vcore again (If I remember correctly Mine does 3Ghz at around 1.31v) again this will depend on your VID and a whole lot of other factors. but one thing at a time.
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post #13 of 16
Thread Starter 
Alright guys, I got some updates. 2 days ago, I dropped my voltage to 1.35 like ou advised and have sucesfully ran prime for over 8 hours. Here's a screencap of that:



Yesterday I also received my new case and moved everything over, temps seemingly dropped by a few degrees.



My VID by the way is 1.325.

Also, the fan on back of my case doesnt seem to be blowing the air out but pulling it in, how can I reverse fan rotation?

Anyway, where do we go from here. Can we get me to 3.2 or 3.4?
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post #14 of 16
if the fan is running the wrong way just unscrew/clip it and turn it round. (there should be an arrow showing airflow direction on the outer of the fan.

if your VID is 1.325 I would lower vCore to match and try running 3Ghz at stock Volts

if it fails bring it up one and redo until stable. (most people i know have got 3Ghz out of there Q6600 at stock or just over)

As for 3.4/3.6Ghz:

(make sure pci is on 100Mhz and ram is set to stock or as close as (this will move up as you OC so keep checking it (it is some thing to tweak after the CPU is stable))

Just follow the steps:

1. creep up (15/20) FSB until you don't post into windows.

2. increase Vcore one notch and try to boot (if you don't boot to windows increase vcore again until you get into windows.)

3. THEN try prime95 for 15 mins just to make sure your ok to go on. (if it fails up Vcore) and try again on prime95 until ok

4. then start knocking up the FSB again repeat (steps 1 to 3) until you are @ your required speed or your Vcore/ temps are to High ( you should be 20-30c under Tjmax @ full load) and you need to go back a few setting.

Do this for now and see where you get to post back with any issues and where you are up to (ie Vcore/fsb)

Once this is done we can look at Ram timing/speed
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post #15 of 16
Thread Starter 
Quote:
Originally Posted by aramil View Post
if the fan is running the wrong way just unscrew/clip it and turn it round. (there should be an arrow showing airflow direction on the outer of the fan.

if your VID is 1.325 I would lower vCore to match and try running 3Ghz at stock Volts

if it fails bring it up one and redo until stable. (most people i know have got 3Ghz out of there Q6600 at stock or just over)

As for 3.4/3.6Ghz:

(make sure pci is on 100Mhz and ram is set to stock or as close as (this will move up as you OC so keep checking it (it is some thing to tweak after the CPU is stable))

Just follow the steps:

1. creep up (15/20) FSB until you don't post into windows.

2. increase Vcore one notch and try to boot (if you don't boot to windows increase vcore again until you get into windows.)

3. THEN try prime95 for 15 mins just to make sure your ok to go on. (if it fails up Vcore) and try again on prime95 until ok

4. then start knocking up the FSB again repeat (steps 1 to 3) until you are @ your required speed or your Vcore/ temps are to High ( you should be 20-30c under Tjmax @ full load) and you need to go back a few setting.

Do this for now and see where you get to post back with any issues and where you are up to (ie Vcore/fsb)

Once this is done we can look at Ram timing/speed
Will do! Btw, my PCI's are set to 100 but "SPP<->MCP Ref Clock" didn't even have 100 in there. 200 was the lowest so I set it at that. Is that ok?
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post #16 of 16
Quote:
Originally Posted by nextexile View Post
Will do! Btw, my PCI's are set to 100 but "SPP<->MCP Ref Clock" didn't even have 100 in there. 200 was the lowest so I set it at that. Is that ok?
Leave it on auto for now (should have an auto setting)
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Mr Ivy
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samsung 840 evo Samsung HD103SI Samsung HD501LJ WDC WD10EARX 
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WDC WD20EZRX OCZ-AGILITY3 raystorm Microsoft Windows 10 Pro 64bit 
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