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my 2x1gb crucial ballistix ddr2 800 2.2v wont scale as well as i would like.
best i have done so far is 446.4mhz 5:6 ratio 4-4-4-4-12-6-42-9-13-10-4-8-5-4-3120t-2t at 2.18v
super pi 1m 13.875s
is one of the subtimings too tight? maybe twtr which i left at 10? or trrd which i set to 4? or one of the other subtimings? or maybe d9s are incapable of scaling high on gigabyte boards, particularly mine? please help. btw if i posted this in the wrong part of the forum let me know :)
Whats your vNB and vPLL? Is the CPU set up to ensure the RAM is the only thing that could be holding you back?
Tell us everything about your settings :D
all voltages other than ddr2 are at stock, vmch is at stock i think thats the nb voltage, and i dont think my board even has a setting for pll voltage
cpu is at 3.35ghz im positive its the memory that caused the bluescreen when i tried to raise the fsb beyond 372 fsb
edit: ddr2 voltage set to 2.15v my board overvolts it to 2.18-2.19v
pci-e voltage at stock
fsb voltage at stock
mch voltage at stock
cpu voltage at stock
there are no other voltages for my motherboard with f12 bios
try vMCH to 1.35v and see what happens :) and vFSB to 1.26v (1.30v is generally the safe limit for P35)
my board has the option to increase voltage in 0.05 increments it doesnt tell me what the default voltage is, the exception is cpu voltage which has much smaller increments
edit: are you sure none of my subtimings are too tight? see first post
edit2:vmch goes up in 0.025 increments
edit3: i saw one guy used 4-4-4-4-8-7-39-9-13-14-7-9-7-8 on his crucial 10th anniversary sticks, those subtimings are way looser than mine
Double sided or single-sided?
if single-sided then 446 cl4 is about the max what theyd do , you should try them with 5-5-5 , should get 550+
if double-sided you can try another divider, 2:3 or 5:8 for instance , if they cant hit 500 4-4-4 2.2v even suicide then must be super bad batch
THats it! I knew there was something I should say about dual or single sided but I wasnt awake enough to follow the train of thought :p:
Single sided 1GB DDR2 sticks suck :p:
Thought FSB termination was CPU related in terms of harm which might come from using >1.35v ?Quote:
Originally Posted by K404
Anyhow,what does sticker on modules say?
If it ends with .16FD3,then you are doing something wrong.
If it ends with .8FES, than it this is not your lucky day,and they are scaling just fine with regards to their capabilities.
Like Žile says look at your sticker and find out what do you really have. If it's .16FD3 than you have Micron D9GMH or maybe GKX/GCT chips and they must go more than you get now. For example, I have .16FD3 with GMH chips (Ballistix Tracer 800) and they can go up to 1250+ MHz.
The situation doesnt make sense. Asus and Gigabyte revised their safe limits for P45 and most users noticed FSB scaling up to 1.6v+ for vFSB. P35, X38, X48 didnt behave that way at allQuote:
Originally Posted by žile
Maybe that's your memory, there isn't any guarantee that you memory has to OC well or mad ! or is there ? :D:D:D:D
If it is 16FD3 or 16FD5, it is. :)
i tried loosening the subtimings to whats at the end of post #5, made no difference whatsoever. still bluescreens just sitting on the windows desktop if i try going from 372 fsb to 374 fsb, its bl12864AA804.16fa
at 372 fsb its super pi 1m stable
i use setfsb to overclock atm since i cant set the subtimings in bios i need memset 4.0 for that as well
board used to scale up to 400fsb with an e6850 and i only stopped there due to cpu limitations on the stock cooler, so i cant imagine running into a fsb wall already, i guess ithe only thing to try is 5-5-5 timings, if it doesnt scale with that somethings wrong. btw i still havent changed any of the voltages yet, and ddr2 voltage still at 2.18v
btw this board actually scaled higher with powerchip ics in the past, 2x2gb ocz reaperX ddr2 800 and it scaled past 500 no problem at 5-5-5 timings, none of the subtimings were ever changed on those
16FA?! and no number behind the FA?
Just googled them but couldn't find any info on what chips are used. If they were the chips known as "D9" by most ( D9GMH/D9GKX ) they should react to voltage, or those were the first clock that bad.
Try to loosen subtimings, these are very likely some other Micron chips not capable of tight timings.
Can you post a picture of CPU-Z with the SPD tab open?
i believe .16fa is even older than .16fd , and what exactly are you looking for in cpuz spd?
and there is nothing after the .16fa
i already tried loosening subtimings and it made no difference, see the end of post #5 to see what i tried, except i used tras at 12 and trfc at 42, which is the default for my ram apparently
Okay, I looked into it a tad further, you're right, they are way older than FD sticks. Just forget what I told you.... :D
I think I know what chips they have, they should be using fatbody chips, the D9 chips that were famous before D9GMH. Damn, I really had to think about their code for a second, haven't used my kits for over a year. D9DQW or D9DQT it is.
Were there any other chips in between those two series?
Try raising voltages a tad to 2.20V, and are you memtesting before entering Windows?
if i set ddr2 voltage to 2.2v it overvolts to 2.26v and its currently set to 2.15 overvolts to 2.18 so im really worried about going overboard with voltage
so in theory these can probably do 3-2-2 timings but thats of little use to me, i want them to scale
bios settings are pretty much at stock except ddr2 voltage set to 2.15v and c1e, tm2 and eist disabled to avoid cpu throttling, all my overclocking is done in windows with setfsb and memset 4.0
any tips on what subtimings to use for fatbody chips?
perhaps these scale with timings such as 5-4-3 or am i mistaken?
That's some serious overvolting... let's wait for some more opinions, though I'm pretty certain there were no other chips that could run that speed at that time.Quote:
Originally Posted by RAMMAN
I looked into the fat body list and found the P/n, but without .xxx in the end. :(
You'd need an excess of voltage to do that, reasonable limits with 2.25V should be ~480-490MHz 4-4-4-12 and 530MHz CL5-5-5-15. 5-4-4-15 should yield better performance at slightly lower clocks.
even my value D9GKX are doing 4-4-4-12 490MHz 2.18V
nothing especial :)
Crucials are the very best for real
if you mean 24/7
you can have:
~850 3-3-3-8 scalable with 2.25-2.35
1066 4-4-4-12 scalable with 2.25-2.35
1300+ 5-5-5-18 scalable with 2.25-2.35
and everythign stays in green voltages
2.35 is nothing especial for D9GXX Chips
even 2.45 are green for them
somedays OCZ had ddr2 1400 ram on the market and they were with 2.45V but never released to public
btw these are the sticks that are known for not booting at spd settings, they default to 400 4-4-4-18 1.8v
they need 2.0v to get stable at stock settings
because thats wrong SPD programmed
ddr2 800 D9GXX Rams need 2.0+ if they run 4-4-4-12 and 2.2+ if they run Cas3
D9GKX are best if you stay under 2.5V or they are equal to handpicked D9GMH
but if you go over 2.5+ D9GMH are scaling even with 3.4V and GKX arent
im thinking of getting something that i know will scale, like team xtreem 10400 but i guess they are as rare as hens teeth
btw dont forget to check my earlier posts, i tend to edit them quite a bit
cpuz spd mentions the serial number, will that be of any use to anyone?
Sorry, I can't help you concerning subtimings, the last time I used them I was on my Striker Extreme with 680i. I never tested them on an Intel chipset.Quote:
Originally Posted by RAMMAN
You missed the fact that those sticks are most likely no D9Gxx chips.... :rolleyes:Quote:
Originally Posted by westsider
These sticks will scale too, just with even higher voltages than D9GMH.... ;)Quote:
Originally Posted by RAMMAN