Kingston HyperX 4GB (2x2GB) DDR2 PC2-8500C5 1066MHz Dual Channel question

WingZero30 · 27 Jan 2011 at 13:15

Hi guys I recently purchased the Kingston HyperX 4GB 1066MHz ram :

http://www.overclockers.co.uk/showproduct.php?prodid=MY-039-KS

I want to do some stability testing at 1066MHz hence my Q6600 is back to 2.4Ghz default speed from 3.4Ghz as that is the only way the spd multiplier will allow me to obtain 1066 Mhz speed.

Now after installing the ram the bios ran it at the default speed of 800MHz with 5-5-5-18 timings and Dram Voltage was set to auto. So I changed the speed to 1066Mhz tried changing the timings to 5-5-5-15 as specified but bios wouldn't let me. So I flashed the bios on my gigabyte ep45 ud3lr mobo from F7 to F10 which mentions 'enhanced memory compatibilities' which I assume are the likes of 1066MHz memories.

http://www.gigabyte.com/products/product-page.aspx?pid=2951#bios

Now I can change the timings to the specification of 5-5-5-15 even with Dram voltage set to 1.8V and it boots fine into the windows. The odd thing is that when I up the Dram voltage to 2.2V, the viper fans attached to my IFX-14 cpu heatsink spin at full speed :confused:

. This was even the case with previous Bios version of F7. So I don't know what is happening there.

The other problem is I can't seem to boot memtest 86+ from either USB flash drive or cd/dvd. I have never used this program before and the booting issue is causing me lots of frustration.

I have then resorted to Prime95 Blend test and so far done only about 30mins of testing and so far it seemed fine. The Dram voltage is still set to 1.8v while the speed is 1066MHz and timings are 5-5-5-15.

Is it a must that for 1066MHz the voltage has to be set to 2.2v+? Sorry for long post but I would really like to get this testing underway.

I would appreciate all the help. Many thanks

boosfuk · 27 Jan 2011 at 13:47

Don't know if it helps but I've got this memory in an overclocked AMD system and found that to run at 5-5-5-18 & 1066 I need 2.05v minimum. From what I remember reading it is not possible to run these speeds at 1.8v

Br4d · 27 Jan 2011 at 18:04

Ive just upgraded, but i used to have 2 sets of them Ram on a EP45-DS3,
Mine done the same, i used to get crashes with them at 1066Mhz 5-5-5-15 at 1.8v. my fans went full bore as well when i increased the volts to near 2.3v, The answer is to stay in the "Purple" volts i think, so i put it to 2.1V and it was fine.

My Board wouldnt let me boot Memtest ethier

Think its just them boards. (I had the latest Bios like you)

Hope this helps mate

WingZero30 · 28 Jan 2011 at 16:31

OK I managed to burn Memtest 86+ V4.20 on the DVD as my other DVD was faulty. So running the latest version of memtest 86+ and it booted fine

.

In the bios the SPD multiplier is set to 4.00A which is basically FSB: DRAM 1:2 giving me DDR2 speed of 1066MHz from default 800MHz. As you can see the timings have been manually set to 5-5-5-15 and Dram Voltage is set to 1.8V for both sticks of 2GB each.

The PCI-E was also set to 100MHz. Each stick was tested individually.

The first stick was tested in slot 1 and the 2nd stick was tested in slot 3 for the purpose of placing the sticks in those slots for dual channel configuration later on. Yet memtest showed them as in slot 0. Must be to do with the program.

Anyway here are the configs and testing results.

DDR2 1066MHz, 5-5-5-15

Dram Voltage: 1.8V

1st stick Memtest Results

2nd stick Memtest Results

So the total testing time was over 11 hours for the 2 sticks combined and each stick successfully completed 10 passes of memtest 86+ v4.20

.

So it seems I managed to run Kingston HyperX PC2 8500 1066MHz at 1.8V with timings of 5-5-5-15

unless I missed out something.

I think flashing the bios from F7 to F10 definitely helped.

Any other suggestions guys. many thanks

.

Br4d · 28 Jan 2011 at 17:27

Nice, Mine used to give no Errors but under load would sometimes give a BSOD so i run them at 2.1V

boosfuk · 28 Jan 2011 at 19:36

Br4d said:
Nice, Mine used to give no Errors but under load would sometimes give a BSOD so i run them at 2.1V

That is exactly what I found. it always passed all memory tests at <2.0V but I needed to run at 2.05V otherwise I got the occasional BSOD under system load (such as in a game).