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Gskill DDR2 800 overclock

post #1 of 7
Thread Starter 
Alright, So first off, i'm no stranger to overclocking by no means am I an expert, but I am used to the process.

Second, I've tried the search button, but my unique hardware circumstance here doesn't really seem to have been touched on.

Sys Specs:

Q9550 OC'd to 3ghz
Z600 Cooler
DDR2 800 4 gb (2x 2gb) F2-6400CL5-2GBPQ
DDR2 800 2 gb (2x 1gb) F2-6400CL4-1GBPK
Evga 750i FTW
2x 512mb EVGA 9800 GT's
Thermaltake 850w modular PSU.

Ok so here's my issue.

I am currently running two sets of Gskill ddr2 800 ram. one set is 2x 2gb and the other is 2x 1gb.

I have overclocked my four gig set before without issue. However I new game i'm playing required more than just a faster clock. APB was using 3.8gbs out of my 4gb system. Which is where I added the second set of 2x 1gb.

Things i've checked:
they are both on their respective channels, so no mismatching here.
All sticks are in their sockets firmly
Both models use the same recommended timing from the manufacturer. (5,5,5,15, 2t)

the 2gb set has a slightly different voltage range, but both have the same maximum. (since i'm overclocking here tho... ya.)

My issue is, once overclocked. My system becomes relatively unstable with games, particularly APB. the crashpoint is always kinda random, but it always has to do with some kind of GUI Interface interaction in the game.

I am fairly certain the RAM settings are causing this issue because as soon as I return them to the stock 800mhz rather than my preferred (1066) the system works flawlessly with my games, once whatever is causing the issue decides to rear it's ugly head, my system blue screens and shuts off.

My question for everyone here is this. Has anyone ever tried this kind of set up before? if so, did you have the same issues? and more importantly, do you guys have any recommended timming and voltage settings for this kind of setup?

Any ideas and insight would be greatly appreciated here.
post #2 of 7
i have the same rams as you,only mine are a dual kit.are you sure they (the PQ's) can do 1066?mine are rated 1000mhz and do it comfortably,but for 1066,i have to raise the volts to 2.2.anything below that,and they will not do 1066,or give me bsods,heck,on certain boards,they dont even work at 1066.the PK are 1066mhz,so,i guess the PQ are what is the issue?
    
CPUMotherboardGraphicsRAM
athlon II x4 630 gigabyte 785GM-US2H radeon 4200(integrated) gskill 8000Cl5D 4GBPQ 
Hard DriveOptical DriveOSMonitor
WD 320GB|640GB|74GB|2x1TB sony dru 870s windows 7 ultimate LG HCM700SFL crt 
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logitech basic corsair VX450 generic logitech basic 
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CPUMotherboardGraphicsRAM
athlon II x4 630 gigabyte 785GM-US2H radeon 4200(integrated) gskill 8000Cl5D 4GBPQ 
Hard DriveOptical DriveOSMonitor
WD 320GB|640GB|74GB|2x1TB sony dru 870s windows 7 ultimate LG HCM700SFL crt 
KeyboardPowerCaseMouse
logitech basic corsair VX450 generic logitech basic 
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razer goliathus control 
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post #3 of 7
Thread Starter 
Quote:
Originally Posted by surajspai View Post
i have the same rams as you,only mine are a dual kit.are you sure they (the PQ's) can do 1066?mine are rated 1000mhz and do it comfortably,but for 1066,i have to raise the volts to 2.2.anything below that,and they will not do 1066,or give me bsods,heck,on certain boards,they dont even work at 1066.the PK are 1066mhz,so,i guess the PQ are what is the issue?
See 2.2 volts is where I started, cause that is where I had my dual 2gb's set. but the system just continued to crash, so I downed the voltage a couple steps, one step then retry. I just got it stable, though I wonder for how long. I will be monitoring my system closely, though I am still curious about better timings. my mobo automatically selected 5,7,7,20, 2t.
post #4 of 7
Thread Starter 
p.s. my current voltage for my stable clock with the mentioned timming is:

2.125v
post #5 of 7
the PQ's can manage 1066?if they are stable,run a few games/or other tasks,see how it holds up.i guess,wait for someone else to post,as many use mix-and-match rams.
i would also suggest you look over at the gskill memory forums.they should have more ideas as to where the issue is.
    
CPUMotherboardGraphicsRAM
athlon II x4 630 gigabyte 785GM-US2H radeon 4200(integrated) gskill 8000Cl5D 4GBPQ 
Hard DriveOptical DriveOSMonitor
WD 320GB|640GB|74GB|2x1TB sony dru 870s windows 7 ultimate LG HCM700SFL crt 
KeyboardPowerCaseMouse
logitech basic corsair VX450 generic logitech basic 
Mouse Pad
razer goliathus control 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
athlon II x4 630 gigabyte 785GM-US2H radeon 4200(integrated) gskill 8000Cl5D 4GBPQ 
Hard DriveOptical DriveOSMonitor
WD 320GB|640GB|74GB|2x1TB sony dru 870s windows 7 ultimate LG HCM700SFL crt 
KeyboardPowerCaseMouse
logitech basic corsair VX450 generic logitech basic 
Mouse Pad
razer goliathus control 
  hide details  
Reply
post #6 of 7
Thread Starter 
Quote:
Originally Posted by surajspai View Post
the PQ's can manage 1066?if they are stable,run a few games/or other tasks,see how it holds up.i guess,wait for someone else to post,as many use mix-and-match rams.
i would also suggest you look over at the gskill memory forums.they should have more ideas as to where the issue is.
I guess so. It seems stable so far. I'm testing with multiple games, and will probably redownload 3D mark to really pull a test. but so far... so good.
post #7 of 7
Thread Starter 
ok, so far seems stable system has been running clean and clear for the last 7 hours. though i'm still curious about the timings, how is 5,7,7,20,2T? this is what my Mobo automatically selected, and untill I have more time to mess with it, seems to be the only timing set that works.
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