Crashing when running ram at 1066mhz.

[blackbird307]

The bios on my computer for some reason defaults to ddr2 800. When I set it to 1066 it runs fine until im playing a game like gta 4 all of a sudden it would lockup and the screen would eventually go black. This only happens when i set to 1066.

Specs:
Processor: Athlon II x4 Propus 620 @2.6ghz
Motherboard: MA785GM-US2H
Cooling: Stock fan with Arctic Silver 5 thermo paste
Memory: 4gb DDR2 1066 OCZ Platinum 5-5-5-18
Video Card: Sapphire Radeon HD 5770 1GB GDDR5 128-bit
Harddisk: 1tb SATA Seagate ST31000340AS
CD/DVD Drive: LG IDE DL/dvd burner
CRT/LCD Model: ht09 28" lcd 1080p 16:10 t.v
Sound Card: AC'97 hd
PSU: 465W

It really is a shame because my ram is bottle necking my computers performance at 800 especially since its meant for 1066. I also suspect there being a different problem if not the ram.

My voltages:

Temperatures at crash:
CPU: 45C
Motherboard: 42
Video Card: 43C

I really don't want to have to overclock my cpu reference clock to get 1066, just a huge waste.
Can someone help me?

And also my ram works around 2.1-2.2V it's currently running at 1.8 I don't know if that's normal or not. Is it necessary to raise the voltage?

 

[mikey5802]

A few quick questions:

1> Is your Mobo version 1.0 or 1.1?

2> What is the exact P/N for your memory?

3> Did you check the manufacturers Qualified Vendor List to make your ram is supported?

 

[unclefester]

You will need to set your memory to at least 2.0v to get it to function properly at 1066.

 

[jitpublisher]

And it is not bottlenecking running at 800mhz.
Once you get it all set and running at 1066mhz, you will never notice an iota of difference.

 

[blackbird307]

1> Version is 1.0 with latest bios version F7
2>OCZ2P10662G
3>No, it's not on the list. To be honest most of the ram on it is 1200 or 1116. I only see OCZ once on the entire list.

Voltage was set to 2.1V and still crashed.

Timings are 5-5-5-18 as standard by OCZ.

I know it technically isn't bottle necking, but when I raise it there is a very noticeable difference in performance on gta 4 specifically. Until it crashes at least.

Apparently the board is supposed to support 1200+ which im finding hard to believe right now.

thanks.

 

[jitpublisher]

Well, you know this may sound ridiculous. But I had problems with 4 1gig sticks of Patriot extreme DDR I had at one time. No matter what I did, it just would not run stable at the advertised settings. I was running a Raidmax Volcano 650 watt PSU, which I know was not really a top notch unit by any means. Anyway, I upgraded my whole rig and gave my old motherboard, cpu, memory to a friend. (DFI Lanparty 3200CFX DR/g, Athlon 4600X2, I loved that setup in it's time) and told him about the memory issue. I had to run it with only 2 sticks to keep it stable...any of the 4 sticks as long as it was only 2 at a time were fine. Put in 4, and you would get random lockups. This happened with the CPU at stock 2.4ghz, or overclocked all the way to 3.2ghz, did not matter it seemed. And believe me, that Lanparty board had more memory options and tweaks than any 3 boards I have ever had put together! He bought a Antec 900 case and a Thermaltake Toughpower 850 watt PSU. He inserted all 4 sticks, set all the timings and voltage right to where they were supposed to be, and he has been running that thing for over a year now with out a hiccup. So go figure!!!! I reason that maybe the cheap PSU was not feeding a clean enough stream of power for the high performance settings on that memory?
I have long since dumped the Raidmax PSU.