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  Kingston KHX8500D2K2/2G 
 Date Written 
Fong Hon Lim Jun 15, 2009, 01:24am EDT Report Abuse
The RAM can only detect as 6400 and 800mhz in Everest and CPUZ on ASUS P5QL Pro. I have already set it to 1066MHz in BIOS, but it hang randomly and blue screen error on me. Any motherboard can run it smoothly on 1066?

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Jules Jun 15, 2009, 06:53am EDT Report Abuse
>> Re: Kingston KHX8500D2K2/2G
Blue screening usually a memory problem in a new computer.
Your board has dual channel memory architecture.
It should be able to handle 1066MHz and the BIOS should recognise it without your assistance.

Do you have x2 Dimms installed?

Is your operating system 32 bit? If so you can only install x2 1GB Dimms as the board will not recognise more than 3GB.

Is your Kingston memory on the recommended vendor list in the MOBO manual (I couldn't be bothered downloading it to have a look)

KHX8500D2K2/2G 2GB kit DDR2 1066MHz Non-ECC CL5
(kit of 2 - 1GB) 5-5-5-15 2.2V
Is this 'unbuffered' ?

Only read the manual as a last resort.
thanh son Jul 15, 2009, 09:44pm EDT Report Abuse
>> Re: Kingston KHX8500D2K2/2G

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G. G. Jul 15, 2009, 10:05pm EDT Report Abuse
>> Re: Kingston KHX8500D2K2/2G

What you need to do is in bios, manually set your memory to base frequency of 533mhz, timings to 5-5-5-15, and finally set your memory voltage to 2.1~2.2v

Some memory will require 2.0~2.2v to run at 1066 or higher frequency.


Fong Hon Lim Jul 21, 2009, 11:36am EDT Report Abuse
>> Re: Kingston KHX8500D2K2/2G
I have already settle the case. The Ram IS a 1066MHz RAM but HyperX set the default SPD to 800MHz for compability with more motherboard.
The problem that I had is not the blue screen error, but why is the BIOS and Everest display the RAM as 800MHz.
Kingston did not declare this fact in the packaging, so the customer thought we sell him wrong RAM. The sales department also don't know this fact thus can't explain to the customer. But I settle this case already.

Jules Jul 22, 2009, 05:24am EDT Report Abuse
>> Re: Kingston KHX8500D2K2/2G
Glad you have solved it. Thanks for letting us all know.

Only read the manual as a last resort.
G. G. Jul 22, 2009, 09:39am EDT Report Abuse
>> Re: Kingston KHX8500D2K2/2G
Fong Hon Lim said:
I have already settle the case. The Ram IS a 1066MHz RAM but HyperX set the default SPD to 800MHz for compability with more motherboard.

I dont think anyone here said anything about it not being 1066 ram..... so why are you saying " IS ". No one here is doubting it.

So are you saying the case is settled = "HyperX set the default SPD to 800MHz for compability with more motherboard."

This is true but YOU have to "Manually" set the memory configuration in bios to obtain 1066mhz speed.

Oh by the way..The official fastest speed for DDR is 800mhz. Anything above this is considered "overclocked". In reality, all DDR speed above 800mhz are memory that company have guarantees that they will run at those faster speeds. In SPD, the company will map out what the memory speed the DDR can run at. One way to look at SPD mapping, you need to run CPU - Z. In this utility, there is a SPD tab. In this tab, it will display the infomation outlined by the memory company as to what speed it can run and what configuration is needed for those speed to be obtainable.

The reason the BIOS and Everest display the memory as 800mhz is because the bios Memory setting is set for AUTO detect. Default will be settings for 800mhz. You have to go into bios and set the ram speed, timing, and voltage MANUALLY. Some motherboards can detect the memory at 1066 and will set the parameters for it but other motherboards will most of the time go with the SPD default of 800mhz.

Steps to get the memory to run and recognized as 1066mhz was given to you.

Oh... another thing... I and my brother have that very same exact memory (Kingston KHX8500D2K2/2G).

1. My brother's rig I had to set the speed manually.

2. My rig recognized it at the 1066mhz speed automatically... (two months later I swapped the kingston HyperX out for some Dominator 1066)

So if your fix is that HyperX sets 800mhz as SPD default..... well, that's ok I guess....

it can do 1066mhz (as long as the motherboard allows it)..


scott johnson Sep 25, 2015, 12:56am EDT Report Abuse
>> Re: Kingston KHX8500D2K2/2G
After buying 2 pair of Kingston HyperX Genesis DDR3 1600mhz and doing a lot of research on memory before I bought for a ASUS M4A GTX PRO USB3 MB I found out that in order for HyperX to run at it's advertised high performance speeds for example 1600mhz which = 800mhz will only run at 1300mhz which = I believe somewhere in the neighborhood of 666mhz, the Kingston HyperX Modules have to set in the Bios to run at their advertised high performance speeds such as 1600mhz=800mhz, which work very well overclocking because I got these DDR3 1600mhz Kingston HyperX Modules up 897mhz pushing them to their max with the MB I was working with. So count on having to set you Kingston Memory to the specified performance speed you want them to run. Copy? Over n Out!



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