Overclock unstable...

D

Deejay3d

Limp Gawd
Joined
Oct 10, 2006
Messages
138
I have been overclocking the rig in my sig. I got it up to 2.6Ghz, 10 x 260, 1:1 ratio, CPU 1.45v / RAM 2.8v / 2.5-3-3-8. Had to turn HTT link down to 1x, or else I couldn't get into windows. With these settings, it was Prime95 stable, and would handle any benchmark I threw at it like PC Wizard, 3DMark 05/06, Everest, etc. But when I would load up FEAR Combat, once a map loaded, it would run smooth for a bit then freez up and BSOD. I tried Half-Life 2 and it runs fine. I also discovered recently that it does the same thing in Quake 4. My temps are well within reason, 27-30C Idle / 42-45C Load(gaming) / 55C Max. under Prime95. I cheked my video card and it is not the problem. I just bought this RAM and it is rated for 250, so I assumed it would do at least 260 no problem. I tried setting the latency to 3, but it didn't help. Maybe I need to tweak the timings? I have heard of X2 3800's doing 2.9Ghz and even 3.0Ghz, so I was hoping I had a good one. Any help would be appreciated. I was wondering if maybe my PSU could be insufficient? It is a cheap no name that came with my case. I also tried setting the mem ratio different to try to determine if it was the CPU or the RAM, but didn't have much luck. I think I will try some more while I have a few hours. Thanx in advance...
 
Throw a RAM divider on it. you are probably crashing and unstable with the 1x HTT because there is too much stress on your onboard memory controller. Using a divider will lessen this stress and potentially gain you a higher overclock.


Good Luck!
 
well what RAM do you have? you have no sig...

also i agree set HT link 3x and get your RAM to run at close to 200mhz or less


i dont understand why you would just rum 1:1 up to 260 did you try 210,220,230,235,240,245,250,253,255??????

what vcore are you at, what mobo do you have?

you have to OC 1 thing at a time.... set a low divider on your RAM... like DDR100 or something stupidly low...

and then OC your CPU until it fails prime.... run prime for like 3hrs min....

2 intances of prime... or orthos.. also X2 3800+ on air get like 2.4-2.8 very few go over 2.8 and the 2 I had would not go over 2.6 for anything...



read this...
http://www.dfi-street.com/forum/showthread.php?t=28049
 
well what RAM do you have? you have no sig...
Click to expand...
I have 2x512Mb Crucial Ballistix Tracers DDR500 PC4000. Like it syas in my SIG... :confused: What do you mean "no sig"? Its right there under all my posts.

also i agree set HT link 3x and get your RAM to run at close to 200mhz or less
Click to expand...
Mobo will not boot when OC'd with the HT link any higher than 1x. Not sure why, except that it is a cheap Gigabyte board.

i dont understand why you would just rum 1:1 up to 260 did you try 210,220,230,235,240,245,250,25 3,255??????
Click to expand...
I have been overclocking this since I got it a few months ago, but could only hit 2.3 with my old cheap ass DDR400. I bought this RAM specifically to bring my OC up to at least 2.5, hence I bought DDR500, thinking I would get at least that and probaly more out of the ballistix.

what vcore are you at,
Click to expand...
1.45v, like I said in my post.


UPDATE: I tinkered around today and threw a divider on the RAM. Got it Prime95 stable at 2.7 with the RAM at like 245, something like that. But, once again, after playing FEAR for about 25 minutes, BSOD. Why would it be stable in intensive stress tests, but not gaming? What about the PSU? An answer on that? I will try to up the HT link, see if I can get it stable.
 
Have you done the A64 OC guide in the AMD forums? You should follow at least the part to find out your mobo max and your RAM max if you haven't already.

260mhz should not be to high at all for the RAM. 260mhz, MIGHT be a little to high for the motherboard though. However, finding out your RAM and Motherboard max would identify this for certain.

260x5 = 1300 so you should only have to lower it to 4 to keep it closer 1000

Is your PCIe bus locked at 100mhz and your PCI bus locked at 33 or 33.3mhz? What voltage is your chipset running at, how about your RAM? What voltage is your RAM rated to run at versus what it is running at?

Do you have the most current BIOS?
 
Vcore too low, boost it. I'm at 1.58 on stock cooling and that is minimum to get me stable at 2.6ghz
 
Finally got it stable. But I still can't boot with the HT at anything higher than 2x, and I had to bump its voltage up by +0.3v. So my rig is as follows:

CPU: 2.6Ghz (10x260), 1.55v
RAM: 261Mhz, 2.5-3-3-8, 2.8v
HT: 522Mhz (2x), +0.3v (don't have a way to read the actual voltage)

Prime95 stable with decent temps (53C @ load), 3D stable, no more crashing during FEAR Combat or any other game.

My conclusion:
Smoove910, you were right, the HT needed to be boosted, and to do that I had to increase voltage, which is now maxed out. If I want to go any further I would need a better Mobo. I am content for the time being, though. Thanks for all your input guys!


BTW/ my mobo only supports 800Mhz HT, not 1000 like most decent ones, which could explain some of my resrictions
 
You must log in or register to reply here.
Back
Top