KHX8500AD2K2/4G volatge and timings question?

[RonnieBoy]

I have just made a new system and I'm wondering how I'd go about enabling the full potential of my memory. I have 8GB of memory coupled with a GA-MA770-DS3 rev 2 and a Phenom II X4 940. My motherboard should support 4 banks of memory at 1066MHz. But I was wondering how I get my memory running at full speed, as at the moment it's running at 800MHz.

At the moment the memory is just set to auto for the timings and what not, and the voltage is at 1.8v (although when checking the power monitoring in my BIOS it says it's running at ~1.9+v)

Now would I have to manually set the multiplier from 4x to 5.33x and manually add +.2v?

This is the link to where I bought it from: Kingston HyperX 4GB (2x2GB) DDR2 PC2-8500C6 1066MHz Dual Channel Kit : novatech.co.uk : KIN-001
and here's the data sheet for it http://www.valueram.com/datasheets/KHX8500AD2K2_4G.pdf

On one it says CL6 and on the other it says CL7.

Will I have to manual set my timings as well as the voltage and multiplier?

Also there's two sets of timings quoted on the data sheet 6-6-6-18 and 7-7-7-20. Which ones should I use? Do I need to use different voltages for each? Keeping in mind I have 4 sticks of RAM and I'm not sure if that'll mean I'll have to use slower timings, or not.

I want to make sure I get this all right, as not had much experience in mucking about with voltages and timings. And the last time I did mess about with some old Corsair PC3500 RAM to get them from 400MHz to 433MHz, it ended with a much shorter lifespan on my memory sticks.

[ANZAC_ELITE]

Novatech has got it wrong.

The critical information is in the data sheet

Each module pair has been tested to run at DDR2- 1066MHz at a latency timing of 7-7-7-20 at +1.85V to +2.0V.[/B]

The modules have been tested to run at 1066MHz by Kingston but at CL7, you may well be able to run CL6 at 2.0v, only testing will give you an answer to this. The 6-6-6-18 refers to 800MHz as below.

The SPD is programmed to JEDEC standard latency 800Mhz timing of 6-6-6-18 at +1.8V.

The SPD is the JEDEC standard the modules are programmed to, for some reason (mabey a typo) novatech have taken the two best parts of the spec and erroneously combined them (1066MHz at CL6)

To enhance module longevity do not exceed 2.0v.

Cheers.

[RonnieBoy]

Well manually setting my memory to 5.33x (1066MHz) upping the voltage to 2.0v and setting the timings as 7-7-7-20 and leaving everything as-is, results in vista BSOD'ing on every boot up.

Any ideas?

[ANZAC_ELITE]

If it were an Intel chipset I would say you need more northbridge/MCH voltage as you are running 4 memory modules but the memory controller is "on die" with AMDs and I've never owned one so I have no idea of the equivilent setting.

Is the memory defaulting to Command Rate 2? If it isn't then try setting it to CR2

Maybe you need to relax the performance level and or the Refresh Cycle Time (tRFC)?

Did you catch the BSOD error code?

[johnerz]

Ronnie
sadly I think you are barking up the wrong tree here. I HAD the same memory and posted this here Hyper X 1066 cl6 at 1T

I received NO assistance from Kingston at all.
I also email their UK support and the reply were far from helpful. Basicaly they said that to run at 1066 is "overclocking" Well I'm quite experienced at that and gave them full details of what settings i had tried and what had failed.
Well they refused point blank to assist in any way whay so ever, and had the gall to suggest that i swop it out from the shop with their cheap and nasty basic stuff.

My thought are not for print, needless to say I,m now running OCZ platimum 1066 with no issues, OCZ have a fantastic web based help forum with quick, helpful and interested staff who will help you in every way they can.

What a difference.


I sold my Hyperx Cr*p and will never buy them again, I hope your experience is better, good luck.
I recommend selling it and buying quality ram with good support :(

[sansir]

kingston again?
no way!!!

now i'm looking to sell this crap and buy an ocz.

[voyager2009]

I also brought this Hyperx Cr*p and it fails to run at 1066mhz on my system too. I swapped out 4 sticks of ocz 800mhz for what, just more 800mhz ram with a 1066mhz label.

[bnborg]

Kingston gave me the same runaround with a pair of KHX6400D2K2/4GR that would not run at PC2-6400 without overclocking.

I used to think highly of Kingston. Now I do not.

[johnerz]

I could not get mine to run above 860 the tech support was a joke, sold if off and got OCZ - good ram fantastic support on their own dedicated forum not like this piss poor attempt at support on here :(