Kingston Hyper x

Mangochutney

Mangochutney

Mangochutney

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12 Sep 2009
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Harrogate
I am just about to put some new RAM in my system and was just wanting to confirm something.

It the DDR2 Kingston Hyper-X 2x2gb kit details below-

KHX8500D2K2/4G 4GB DDR2 1066MHz Non-ECC CL5
5-5-5-15
2.2-2.3V

I gather that my BIOS will have to be manually adjusted to these values, not done this before so I'm a little wary of doing this! Do I just set it to those values straight away in the BIOS?
ie, 2.2v, 5-5-5-15 timings and 1066mhz.
I don't need to up the voltage in increments as if o/cing a cpu or gpu?

I apologise if this is an obvious question, just don't want to wreck it! :o
 
I ahve the *inferior* version of your RAM :(

I actually set my MHz lower than stock to get better timings.

Also, when I left the BIOS on Auto it was almost spot on what the packet said.
 
nice timing on post was just about ask a question about the same RAM, as I am having issues with my MSI 680i mobo seeing these as 1066Mhz FSB on auto they are detected as 800Mhz for some reason. I cannot find a BIOS upgrade however.
 
i do have this ram, it is detected as 800mhz as this is its programmed spd, u increase it manually - otherwise it will operate at 800mhz 5-5-5-18, 1.8v

i set mine in the bios, its not important to set it in order to get it to POST, but it is if u want the extra speed.

Edit (to answer the question) yes you can just set it straight away, and u should. then u know if its faulty and rma it if it cant handle the advertised speed/timings.
 
Mangochutney said:
I gather that my BIOS will have to be manually adjusted to these values, not done this before so I'm a little wary of doing this!
Click to expand...
Hello Mangochutney,

I own a few sets of that RAM and nothing had to be adjusted apart from the [BIOS] DDR2-Frequency, tested on both Intel and AMD boards . . . it just plugs n plays fine! :)

If it's your first time using high-speed DDR2 you may find it helpful to first reset your system back to stock (if overclocked) and test the memory on a base system. If your system is running stock you should be able to adjust one setting in the BIOS to change the memory speed from DDR2-800 to DDR2-1066, voltage and timings *should* be taken care of automatically by your motherboard, if the board does goof it up then you have the option to switch to manual over-ride and key in the settings yourself . . .

Once the system is (hopefully) running smooth at stock speeds with fast DDR2-1066 ram you can then try manually dialling down the vDimm from it's [auto] setting to 2.0v then 1.95v then 1.90v etcm until it starts producing errors in Memtest . . . . I've got four sticks of that RAM and it's run flawlessly for 6 months at 1.82vDimm instead of its recommended 2.1vDimm.

Once you happy the sticks are running fine you can then begin to work out how to set your overclock back in place while keeping the memory running fast, always boggles the first-timer! :D

Mangochutney said:
I apologise if this is an obvious question, just don't want to wreck it! :o
Click to expand...
Not a problem, and don't worry you won't wreck anything if you take your time to understand what your doing and don't *fry* your sticks to too much heat/volts! :cool:
 
Thanks for the input guys.
I will proceed as you suggested BW, I seem to remember you helping me out with my CPU o/c ing a while back and that was successful.
You are like some kind of techno guardian angel!!
 
Oh dear!
Had trouble with windows hanging when I set the RAM to 1066mhz, I left the voltage on auto as it set itself to 2.288v. It will only let me ADD voltage to that and not subtract btw.
Setting the ram back to 800mhz everything is fine, but then I thought 'sod it!' why buy some new ram only to use it the same speed as the last?!
So I tried again at 1066mhz and windows did not hang, even ran Unigine without crashing.
BUT, on Memtest I got the following message-

Memory error Pair ***** does not store values accurately.
Then some info about visiting a website.

So, do you think I have some bad RAM or simply that my mobo can't take it?
Dare I add more voltage?

Oh, running cpu at stock speeds as well.
 
what are u doing with the timings? i have put 2.3v through mine.

u shouldnt need to touch anything else except memory:fsb ratio, voltage and timings.

u might be looking at the wrong voltage tbh cause its very unusual for a mb to set a minimum vdim of 2.28, when the spd of just about all ram specifies 1.8v.
 
I have left the timings alone, they don't change with the raise in freq - 5-5-5-15.
The voltage I have looked at is called 'DDR voltage' in the BIOS. When I revert back to 800mhz this changes from 2.28v to 1.87v.
The only thing I have adjusted is the 800 - 1066 mhz.
 
ok, something else to check is the trfc, set it to something like 195ns for testing and see if that helps.

( also here is a fairly complete guide relating to the lesser ram timings http://forums.tweaktown.com/f69/memory-timings-explained-w-suggested-timings-memset-vs-bios-27283/ )

if the problem remains then take out 1 stick and test again, problem goes away = dodgy stick, problem stays = test with the other stick... im sure u get the idea.

if after testing both sticks u still have the same problem (unless they are both faulty - v. unusual but not impossible) then see if there is a bios update for ur mb, if there isnt then maybe the memory is incompatible with ur mb, although i rarely see this.

if you get to this stage then to determine if ur board is to blame or not you will probably need to swap components from another pc and see if there is a common denominator :P
 
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