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A little OC help, please...

post #1 of 13
Thread Starter 
I have a system based on Core 2 Duo E6600, Asus P5B Deluxe Wifi/AP, Corsair 6400 RAM. Reading about the overclocks achieved on this chip, I thought I'd go for a modest one of my one. So, leaving the RAM settings at auto but dropping the divider to run at less than its stock 800, I set my PC to 8 x 300 at 1.30vcore. Spread spectrum disabled, PCE/PC bus at 100/33.3.

I've previously run Memtest at stock for a day so I know my memory is good for at least that. So to test I booted in to a Linux distro (had too many Windows installs corrupted by a dodgy overclock in the past), set an instance of the Linux Prime 95 client runnining on each core for 100% CPU usage on both and left the machine running. 10 hours and 40 minutes later all was still good, no errors.

So I booted in to Vista - and hit a blue screen before getting to the login screen.

This was a bit of a surprise as I'd assumed that if Prime didn't error out under Linux, it would be safe/stable to log in to Windows.

Any ideas as to what else I need to look at / change and as to why Linux would be stable at this overclock but Windows not? (No Linux vs Windows flames please, I just want to understand the hardware )

Anyway, back to stock and straight in to Windows, no problem.
Edited by iceagevampire - 6/2/08 at 1:09am
post #2 of 13
what was the bluescreen?
0x000000???
My System
(16 items)
 
  
CPUMotherboardGraphicsRAM
i7 4771 GA-Z87X-UD3H 2*HD5850 4gb G.Skill Ripjaw + 8gb Corsair XMS3 1600 cl8 
Hard DriveOSMonitorKeyboard
Samsung 840 Pro 256gb | 3*3TB Raid 5 | Corsair F60 Windows 8 x64 *EYEFINITY* Dell 2405FPW + 2*E248WFP Logitech Illuminated 
PowerCaseMouseAudio
Corsair HX-850v2 Lian Li v2010b M$ Basic  Asus Xonar D2X 
AudioAudio
Swan D1080 MK II 08  Shure SRH-440 
  hide details  
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My System
(16 items)
 
  
CPUMotherboardGraphicsRAM
i7 4771 GA-Z87X-UD3H 2*HD5850 4gb G.Skill Ripjaw + 8gb Corsair XMS3 1600 cl8 
Hard DriveOSMonitorKeyboard
Samsung 840 Pro 256gb | 3*3TB Raid 5 | Corsair F60 Windows 8 x64 *EYEFINITY* Dell 2405FPW + 2*E248WFP Logitech Illuminated 
PowerCaseMouseAudio
Corsair HX-850v2 Lian Li v2010b M$ Basic  Asus Xonar D2X 
AudioAudio
Swan D1080 MK II 08  Shure SRH-440 
  hide details  
Reply
post #3 of 13
Thread Starter 
Ah, good point - I didn't note it down, sorry.

Are there some particular ones I should look out for then?
post #4 of 13
8E is ram related
124 = really bad - don't even know and get plagued with it all the time
7E is ram

Those are the main ones i get - just tell us and we will get it sussed.
My System
(16 items)
 
  
CPUMotherboardGraphicsRAM
i7 4771 GA-Z87X-UD3H 2*HD5850 4gb G.Skill Ripjaw + 8gb Corsair XMS3 1600 cl8 
Hard DriveOSMonitorKeyboard
Samsung 840 Pro 256gb | 3*3TB Raid 5 | Corsair F60 Windows 8 x64 *EYEFINITY* Dell 2405FPW + 2*E248WFP Logitech Illuminated 
PowerCaseMouseAudio
Corsair HX-850v2 Lian Li v2010b M$ Basic  Asus Xonar D2X 
AudioAudio
Swan D1080 MK II 08  Shure SRH-440 
  hide details  
Reply
My System
(16 items)
 
  
CPUMotherboardGraphicsRAM
i7 4771 GA-Z87X-UD3H 2*HD5850 4gb G.Skill Ripjaw + 8gb Corsair XMS3 1600 cl8 
Hard DriveOSMonitorKeyboard
Samsung 840 Pro 256gb | 3*3TB Raid 5 | Corsair F60 Windows 8 x64 *EYEFINITY* Dell 2405FPW + 2*E248WFP Logitech Illuminated 
PowerCaseMouseAudio
Corsair HX-850v2 Lian Li v2010b M$ Basic  Asus Xonar D2X 
AudioAudio
Swan D1080 MK II 08  Shure SRH-440 
  hide details  
Reply
post #5 of 13
No expert here but I see this happen frequently to me.
I set my vCore then run prime for 5hrs, think "looks good" I'll play some games & leave it at that for a day. Next day my girlfriend goes on a stupid myspace profile or I go to watch an Xvid and doosh "blue screen"

Frustrating I know!

Prime isn't always spot on.
It's most likely resource hungry windows sucking all your rigs power up on startup.
Linux is just too nice to your overclock
post #6 of 13
Quote:
Originally Posted by scottath View Post
8E is ram related
124 = really bad - don't even know and get plagued with it all the time
7E is ram

Those are the main ones i get - just tell us and we will get it sussed.
Now I feel really dumb
Never did understand those bluescreens
post #7 of 13
Thread Starter 
OK so I should reset to 8 x 300 and so on, attempt to boot Windows and report back on the resulting bluescreen?

Should I have adjusted any of the other voltages in the BIOS when I moved away from default clocks? Or some other settings?
post #8 of 13
Quote:
Originally Posted by iceagevampire View Post
OK so I should reset to 8 x 300 and so on, attempt to boot Windows and report back on the resulting bluescreen?

Should I have adjusted any of the other voltages in the BIOS when I moved away from default clocks? Or some other settings?
yes, keep doing that - you will hit a stage where you cannot boot into windows at all - this is where you up the voltage a little and keep going

Quote:
Originally Posted by gamesmonkey View Post
Now I feel really dumb
Never did understand those bluescreens
After having so many myself - i have learn't many of them - except the 124 one - i HATE THIS ONE and have no idea how to fix it
My System
(16 items)
 
  
CPUMotherboardGraphicsRAM
i7 4771 GA-Z87X-UD3H 2*HD5850 4gb G.Skill Ripjaw + 8gb Corsair XMS3 1600 cl8 
Hard DriveOSMonitorKeyboard
Samsung 840 Pro 256gb | 3*3TB Raid 5 | Corsair F60 Windows 8 x64 *EYEFINITY* Dell 2405FPW + 2*E248WFP Logitech Illuminated 
PowerCaseMouseAudio
Corsair HX-850v2 Lian Li v2010b M$ Basic  Asus Xonar D2X 
AudioAudio
Swan D1080 MK II 08  Shure SRH-440 
  hide details  
Reply
My System
(16 items)
 
  
CPUMotherboardGraphicsRAM
i7 4771 GA-Z87X-UD3H 2*HD5850 4gb G.Skill Ripjaw + 8gb Corsair XMS3 1600 cl8 
Hard DriveOSMonitorKeyboard
Samsung 840 Pro 256gb | 3*3TB Raid 5 | Corsair F60 Windows 8 x64 *EYEFINITY* Dell 2405FPW + 2*E248WFP Logitech Illuminated 
PowerCaseMouseAudio
Corsair HX-850v2 Lian Li v2010b M$ Basic  Asus Xonar D2X 
AudioAudio
Swan D1080 MK II 08  Shure SRH-440 
  hide details  
Reply
post #9 of 13
Thread Starter 
Hmmm...so it seems that there is no way to protect myself from corrupting a Windows install with an overly optimistic overclock? I'm still very confused as to why the dual Prime clients were stable under Linux but I couldn't even log in to Windows? Isn't that a bit of an extreme difference?
post #10 of 13
Thread Starter 
Could someone please tell me what the default for all the voltages *other* than vcore and vdimm are for this board please. As far as I can tell, the manual doesn't detail them...

Also, still looking for pointers on the "prime stable in linux, crashes windows" question.

Thanks!
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