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Help with D9 PC28500 1066fsb Corsair Dominators

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D9 can take up to 2,8V. Maybe better say how much is safe. And here is problem because many people complained about dead D9 on 2,3V some others from 2,5-2,8V. For 24/7 I won't try more than 2,4V; for short benchmarks you can try higher.
I have no problem with my sticks on 2,3-2,4V. Friend burned 2 sets on 2,7V ;)
 
My Goodram PC8500 on D9 are working on 2,3-2,4V 610MHz 24/7 now :beer:
Producer said that safe is up to 2,4V and the same info is on sticker :)
It's really hard to push D9 over 1200 on 2,3V, on CL5-5-5 it's possible but I haven't seen it on CL 4-4-4.
 
Thanks for the input... but, you say 2.2 is max? but thats the stock voltage.... you're saying these sticks can't take .1 or .2 volts over their stock operating voltage?

You gotta remember, these are dominators with the special cooling fins and I have a 140mm fan blowing straight on top of those babies, you sure its not safe to push it .2 volts more?
 
Woomack said:
D9 can take up to 2,8V. Maybe better say how much is safe. And here is problem because many people complained about dead D9 on 2,3V some others from 2,5-2,8V. For 24/7 I won't try more than 2,4V; for short benchmarks you can try higher.
I have no problem with my sticks on 2,3-2,4V. Friend burned 2 sets on 2,7V ;)
Click to expand...

who is complaining? I'm trying desperately to find some info on these chips... do you guys have any links whatsoever on a forum post or review or something about D9 chips?



EDIT: I just upped the voltage to 2.4 and tried to up the FSB to 1100 and the comp wouldn't even post... whats up with that? I even upped the northbridge and southbridge voltages, and nada.... maybe its cause I'm using 4 gigs of this stuff?
 
Last edited:
http://www.houseofhelp.com/forums/showthread.php?t=57334
corsair is the easiest manufacturer to track ics.they are the only one i know of that publishes a up to date ic listing on all of their modules.everyone else makes you either call or dig for ic identification.
depending on what revision you have they may be qimonda or micron...ive just learned something today.as far as i knew corsair used micron in everything ddr2 1066+.im really glad i havent made any suggestions for those modules lately.thats very unsettling news.

EDIT: please tell me i didnt suggest those modules blackjackal.if i did,i apologize profusely.i would just like to add that i wont be suggesting ANY corsair ddr2 modules to ocers again.if i have to double check the ics everytime i do,well no thanks.two strikes your out...
 
Last edited:
CM2X1024-8500C5D
XMS2-8500 1024mb 1066mhz
5-5-5-15 XMS8505v1.2 07261624

CM2X1024-8500C5D

Those are the exact numbers on the sticks, all 4 of them... and according to that link you gave me, they're all D9s... now I gotta figure out why these D9s wont overclock
 
2.2v is the max voltage under warranty. However, they do have a 5% tolerance and, they are certainly not going to instantly melt at 2.25v or 2.3v. Other than voltage, is there any info you need?
 
so you're saying 2.3 would be a fairly safe voltage to run a 24/7 setup?

Why is my ram not overclocking well? I pumped 2.4v into the ram just to test and the system wouldn't even post at 1100.... these sticks are rated at 1066...
 
I use 2.1~2.4v for my modules.More volt is not recommend for long term using.
 
maybe you need more volts? in my setup 1 stick is stronger than the other. both will do 1066 with 2.1v, but at 1080, i have to switch to 2.25, because the weaker stick cant keep up. 2.3 gets me 1135, and 2.35 gets me 1200. have you tested your sticks individually?
 
I haven't used this post for a while because I haven't had access to my brother's computer for a long time... now I'm back on it and i've removed 2 sticks of ram, and SADLY I still cant get them to 1100 even with 2.4volts and stock cpu speed...

They are rated 1066... something is wrong here.
 
Without knowing more about your system, there is no way to try to diagnose the issue. Can you list your COMPLETE system spex, all bios settings that relate to the RAM, CPU, and voltages, and also list all of the info from the stickers on the 4 modules.
 
Numbers on all 4 ram chips:

CM2X1024-8500C5D

XMS2-8500 1024MB 1066MHz 5-5-5-15 XMS8505v1.2 07261624

The numbers are the same on all 4 chips.

System specs:

System parts all listed here:
http://secure.newegg.com/NewVersion/wishlist/PublicWishDetail.asp?WishListNumber=3235488

Except for the following (everything else is as listed above):

CPU is a Q6600 g0:

BX80562Q6600SLACR

MM#: 891337
FPO/BATCH: L721A814
version #: E10342-001 1.35vmax
Pack date 07/31/07


Bios settings taken from CPUz (current settings)

Size 2048 MBytes
Channels Single

Frequency: 520.4 MHz
FSB:DRAM 3:4
tCL 5
tRCD 5
tRP 5
tRC 29

Command Rate: 2T


Rated FSB 1561.0 MHz
Bus Speed 380.3 MHz
Core speed: 3512.2MHz
Multiplier x9

Ram voltage currently set at 2.2v



Thats about it, need anything else?
 
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First, back off the RAM voltage. 2.2v is max you need on those. Try raising the SPPv and SPP VTT (it may be called FSB voltage) to 1.4v each.
 
well its working fine when not overclocked... its just that I cant overclock them... at all :/

Raise the fsb voltage? is that the CPU FSB voltage?

theres vcore... fsb voltage, northbridge and southbridge voltage, memory voltage, and HT transfer voltage. Here is a picture of the bios settings:

bios-voltage.gif

This is not a picture of my settings, it is a picture taken off the web.

My current voltages are:

cpu 1.406
memory 2.2v
fsb 1.3
ht nforce <-> mcp 1.3
nforce SPP 1.450
Nforce MCP 1.5
Auxillary 1.5 (only available in ntune)


which of these do you want me to change? I'm assuming cpu fsb and maybe the HT transfer thing?
 
Drop the multi on your cpu. Leave it at 6 to be sure it's not it's fault (over 3,5GHz is really high for a Q, especially w/ default vcore).
 
dropped the multi to 6, ran the cpu underclocked at 2.2 and it still wouldnt post.... i don't know what voltage to set yet though... I played with the spp and mcp voltage raising each by .1 with no luck
 
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