E6600 OC problems

F

Feileung

Limp Gawd
Joined
Oct 15, 2005
Messages
251
OK, here's what's going on. If I leave my system frequency set to 266 I can boot w/my RAM at 800 with 5/5/5/15 timings. That's good news since those are the standard specs of my RAM! G.skill DDR2 800.

When I jump my FSB up to 401 w/my RAM at 533, my system will start to boot then Vista crashes w/a blue screen and a message about overflow, dumping memory to disk, etc.

I brought my multiplier down to 6 just to be sure that it wasn't my CPU. My VDIMM is set at 2.2 in the BIOS but I haven't changed any jumpers or done any mods. Any tips on how to proceed?
 
so it will boot at stock speeds but wont at 401? did you try any numbers in between or went balls to the wall the first time?
about how to proceed... READ. read overclocking guides here on H, type "overclocking 6600 (insert mobo here)" into google, xtremesystems.org is another good place for OC info.

leave your multi at 9 unless you dont want to overclock it to the limits. put your fsb at 300 and step it up 10 or so at a time. 401@ 1:1 with a 6600 is just over 3.6ghz, when you make the jump from stock to that 95% of the time it wont work. watch voltages and temps like its your job. dont go over 1.425vCore without knowing what your doing.
 
Hi ghost, thanks for the reply!

I didn't jump up to the limit right away, first I brought it up to 2.7 Ghz. I'm able to do this on stock voltage w/my RAM running at 800Mhz and 5,5,5,15 timings (stock). I'm guilty of jumping up after that and running into some problems. Now, however, I decided to just test the limits of my RAM.

I have my multiplier set to 6, my timings are 5,5,5,15; mem frequency set to 533. I set my FSB to 425 (ram at 900) and ran test #5 of memtest 5 times with no errors.

The problem is that when I hit escape, to reboot, the screen goes dark and it never boots. The reset button on my case doesn't even work. I had to switch the power off at the PSU and press the power button again. When it came back up the FSB had defaulted back to 266. Memtest shows no errors but clearly something is going on.

If I try to boot into windows at this setting I get a blue screen or a lock up, typically while the status bar is still on screen.

Also, when you raise your FSB incrementally from 300+ do you do so from a clockgen program or are you dropping to the BIOS each time? BTW: my BIOS is 119rh2 from rebels haven.
 
what kind of MB do you have????
I have an e6600 in an ASUS 650i board and it has easily reached 3.0 Ghz on stock voltage and stock RAM timings using the stock multiplier.

You need to sneek up on your target and run Orthos each increase.....

I have my memory "unlinked" and running at stock Hz and timings. Corsair XMS 6400C4.
 
if your new to overclocking, dont screw around much with the multiplier, if you dont know exactly what it does you will cause more probelms for youself then you imagine. there isnt realy any point in dropping it that far to test your ram, 6x is severly underclocking. and small steps is the name of the game, you cant overclock 50-100% at a time, you have to go in small steps, one component at a time (find max of CPU, then max of mem, and so on)

you cant just set your cpu clock ultra low and ram ultra high, that will cause even more problems, run it at stock and slowly increase the numbers, its going to take some time and many many reboots.
 
Hypothetically though, if you knew your max overclock, you could go right to it eh? So we can save some time by guessing or is that just too risky?
 
you dont know your max clock and voltage settings do you? once you figure out what your system is capable of then yes it will make life a little easier but you dont know yet. this is the only way. also with my DFI infinity 975x/g i couldnt go right to the max oc, making a voltage jump from stock like that would make it not POST, if i did it in 2-4 steps it would work fine.
 
This is a great thread for me because I have the exact same setup as the OP, and I'm maxing out around 365fsb. (730mhz DDR)
Biostar 965pt
e6600
gskill DDR800

Feilung, do the Rebels Haven BIOS'es have the ability to manually set TRC? The default bios for the Biostar board doesn't have the ability to set TRC at all, and I noticed our RAM wants TRC @ 20 iirc. I'm wondering if that is limiting the OC.
 
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