My rig is in my sig. Hit FSB wall @ 250 (3.0ghz) w/o changing defaults for anything. Toyed with dividers and volts to no avail. Please offer things to try.
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My rig is in my sig. Hit FSB wall @ 250 (3.0ghz) w/o changing defaults for anything. Toyed with dividers and volts to no avail. Please offer things to try.
Someone plz help me. *** is with my cpu? It runs at the same idle temp when it is 2.4ghz and 3.0 ghz (43C). Also, at whatever ghz 3dmark03 will freeze during the cpu tests. Should I RMA this?
Most likely...........you need to raise your voltages
a 600 mhz increase with no voltage increases is pratically unheard of
edit*......my bad....didnt read your whole post.....
but yeah....maybe try lowering your memory timings or speed..250fsb is quite alot....are you running in sync?
You need to drop the memory divider if you havent... I think you had to already :)
1:1 @ 250Mhz is DCDDR500 which, unless you have some PC3700 and some extra voltage it aint happening :)
Try dropping to 3:2 instead of 5:4
EDIT:
Also can you include your complete spec :) It might help a little... The sig doesnt tell me everything :)
How far have you tried with the cpu voltage? You might need to go to 1.65v and up for a high overclock... Also what voltage do you run your memory at? Corsair likes to be overvoltaged... In the range of 2.7/2.8 :)
Like Big C said, tell us more about your specs.
Also, I run all of my Corsair on all my comps at 2.8 all the time, OCed or not. It won't hurt it one bit and helps overall stability.:)
Voltage for memory is vdimm right? I will try raising that + vcore + lower memory timings again, but it didn't work last time. Um, what specifically more should I post about my computer?
Like memory which model of Corsair, and BIOS settings...
Did you disable all those memory performance settings in the BIOS? If they are enable, it will not allow you to overclock as high.
Yeah I leave all those performance settings at default. MY board doesn't like them at 272fsb plus.
pc3200 512mb XMS Corsair. I will use your suggestions and post my bios settings if I can't up the FSB. If I want to run 3.3-3.5 ghz should my ram run be in sync?
You will not hit a FSB over 230Mhz or so with the mem divider @ 1:1... Even less since you are using PC3200... You need to drop the divider to 5:4 or 3:2 (depending on how far you overclock)
But you should be good at 5:4 @ 250FSB :)
Yep, my rig runs alright 5:4 @250 FSB, but won't go any higher. So far I've set the vdimm to 2.7, vcore to 1.625, divider to 3:2, timings to 2.5-3-3-7, but won't boot up w/ 260FSB. What else in bios should i try (besides disabling HT)? (bios cacheable?)
Dont disable HT.. Its more beneficial then FSB :)
You do have the Memory Performance disabled? You might of gotten a bad chip.. But It should do better then that even if it was a bad chip...
You might want to try 1.650v, You do have the latest BIOS? version 1.3?
He needs to run his ram async at 2:3 or 3:4 and try slowest timings. He can worry about the ram later, but first run the ram as slow as you can to reduce it being a factor
Dont listen to TB1Ghz... He is wrong...
Canterwoods do NOT have those kinds of memory dividers:)
Well, my lowest divider is 4:3 and that doesn't help me go from 250(5:4) to 260(4:3). Should I follow his suggestion about lowering my memory to it's lowest possible timings? I tried most of the suggestions above post#10.
Quote:
Originally posted by Colossus
Dont listen to TB1Ghz... He is wrong...
Canterwoods do NOT have those kinds of memory dividers:)
I see 1/1, 4/5, 3/4 and 2/3 divisors :)
Wrong again :)Quote:
Originally posted by Thunderbird1GHz
I see 1/1, 4/5, 3/4 and 2/3 divisors :)
The dividers are 1:1, 5:4, 3:2
There are no async step-up dividers meaning 2:3, 3:4, etc
I have the following spec -
P4C 2.4
GA 8IPE1000 Pro
2 X 256 PC3200 Kingston
Thermaltake volcano 7+
I have raised the fsb to 260 giving me 3.1Ghz at 35deg under load, everything else at default. PC wont boot if I go any higher.
Is it better to stay at this speed with memory at 1:1 or go higher and drop the memory back ? My bios doesnt have ratio dividers it has the FSB and the memory bus speed plus a seperate option for the AGP/PCI bus...
Not sure where to go next - any help appreciated !
1/1 is the way to go for the quickness.
5/4, 4/3 or 3/2 for the total clockage in MHZ.
yer choice.
baldy:D
Isn't it right that p 4 systems handle async memory timings well as compared to poor for AMD systems. I would think from the benchmarks i've seen that the p4 would be significantly faster at asynchronous times because the memory is running as fast as it would be in many instances just with a higher fsb. I know from experience that AMD systems aren't good with async memory though.
kirkyg