Another 2.4C ?

[d4a2n0k]

Hi everybody, its been a while since my last post. My last rig was a 1.6a O/C to 2.4 which has been running great for about a year and a half.

My wife bought me the following for Christmas: (without my knowledge, she has been reading Anandtech!)

ASUS P4C800 E deluxe MB
2.4C M0 stepping
2 x 512 PC 4000 Corsair XMS w/platinum heat spreaders
ATI 9800 XT
2 x 36 GB Raptors in Raid 0
Antec Truepower 480w PS
Zalman 7000a CU

I have it running at 260 FSB at stock voltage and I can prime 95 it overnight without error. If I try to raise it anymore than 260, it either goes to a black screen right after turning it on or actually gets into windows and BSOD's right away. No matter what I do in the BIOS, I still get the same results.

I have tried the CPU at 1.575v and the RAM at 2.85v but still get the same results.

Anybody have any tips in getting this thing higher than 260 FSB?

Thanks.

 

[batmang]

holy s#it your wife did a great job. She got you a great overclockable rig, thats for sure. The only thing i can really suggest is change your gat settings, in this order, to this, from top to bottom:
auto/normal/auto/disable/disable. Try 5:4 ratio, relax the timings if its still crashing. I beleive the asus OVERVOLTS so dont go to high on the voltage, from what ive read i think 1.6v is the highest/safe you should go. I'd try 5:4, and lax the timings, and see how far you get from their. But 260fsb is a pretty damn good overclock, im stuck at 3.033ghz max rock solid on my 2.6c. Your wife is awesome, my girlfriend bought me a new case and a intake for my car. She's awesome too.

 

[d4a2n0k]

Thanks for the reply. Yes I am a lucky guy sounds like you are too I have a feeling this CPU has more in it because it is running rock solid at stock voltage. Something else is holding me back.

I havent seen anything in the BIOS about 5:4 or anything like that. Does it actually have a setting for 5:4? When I do CPU-Z it says my memory is running at 3:2, or is that program screwy? Should I believe everything it says? It also says my memory is PC3700 not PC4000. Do the ASUS boards automatically slow the memory down when you boost up the FSB?

I also heard about the ASUS boards overvolting thats why I didnt want to bring the CPU over 1.575v figuring the actual was about 1.6v +/-.

I cant remember exactly how I have everything setup right now because Im at work but will check later on.

Thanks again.

 

[batmang]

hrmm... your board might not support 3700ddr, my is7-e doesnt support 3500ddr, but having faster ram is better once you start overclocking. 3:2 ratio is actually the slowest ratio, 5:4 is the next steup, and 1:1 is supposed to be the default setting. i would look into a bios update and run a 5:4 ratio. It should be located in the bios somewhere. CPU-Z is actually very accurate, so you probly are running a 3:2 ratio. And now that i think of it, i have no clue why i told you to change your gat settings, you dont even have an abit motherboard, lol. Nevermind that part.

 

[Budman]

Look in your bios for the ram speed, it's probably set to auto right now.


1:1 is 400mhz
5:4 is 320mhz
3:2 is 266mhz

try setting your ram ratio to 320mhz that will give you 5:4 ratio.

 

[RamIt]

Sounds like the dreaded CH-5 fsb problem. I run at 296 fsb with my old xms but can't run above 255 with the new corsair xms with the ch-5 chips. Makes no difference what dividers I use either.

 

[d4a2n0k]

Thanks everybody.

Budman, I have seen that and mine is set to auto so maybe that is why it is running at 3:2. Anybody know if the ASUS boards slow the memory down with higher FSB's?

RamIt, I hope thats not the case with my memory, that would s*ck...

Does newegg take returns of memory?