well memcontroller is in your chip so that might have been fried and passed away...
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well memcontroller is in your chip so that might have been fried and passed away...
Sounds like it. At least some of it still works though :P
Ok, I haven't killed mine yet, but yesterday while I was messing around with the shuttle's vdim mod, by slowly turning the pot to increase the Vdim, it jumped from 3.1 to 3.66. stayed there for about a sec, and then it came back to 3.1...
That's weird, eh? is there any chance that the Vdim's mosfets can't handle the extra voltage/heat, so they're crapping out eventually?
Onto my third A64 3200+
I got another greeny this time:
last two letters = KC week 333
First one was : MC week 343 (brown)
Second one : AC : week 341 (green)
Wish me luck I'm now on as follows:
Gigabyte K8N Pro (Instead of ASUS K8V Deluxe)
A64 3200+ KC 333
2x 512 Mushkin lvl 2 3500 || 2x 256 Corsair XMS3200LL rev 1.1 || KHX3000/2x256
PCP&Cooling 425W (3.3 = 3.6 | 5v = 5.46)
Radeon 9800 Pro
80GB Maxtor ATA133
Was Vdimm set to auto in bios while you turned the pot?Quote:
Originally posted by RootX
Ok, I haven't killed mine yet, but yesterday while I was messing around with the shuttle's vdim mod, by slowly turning the pot to increase the Vdim, it jumped from 3.1 to 3.66. stayed there for about a sec, and then it came back to 3.1...
That's weird, eh? is there any chance that the Vdim's mosfets can't handle the extra voltage/heat, so they're crapping out eventually?
I really want to do the Vdimm mod but all these dead CPU's scare me. :(
Yes, after reading this thread and Mickey Mouse suggestion, I didn't change the Vdimm value from bios... was set to auto before I started turning the pot.... and I was turning it real slow.... 3.0, 3.05, 3.1 and suddenly, both the multimeter and the bios screen showed 3.66....just for a sec or two, without touching the pot, it came back to 3.1.... The psu is a pc-power&cooling 475, with modded lines which are solid no matter the load....Quote:
Originally posted by Zeus
Was Vdimm set to auto in bios while you turned the pot?
I really want to do the Vdimm mod but all these dead CPU's scare me. :(
Scary stuff mate! :eek:Quote:
Originally posted by RootX
Yes, after reading this thread and Mickey Mouse suggestion, I didn't change the Vdimm value from bios... was set to auto before I started turning the pot.... and I was turning it real slow.... 3.0, 3.05, 3.1 and suddenly, both the multimeter and the bios screen showed 3.66....just for a sec or two, without touching the pot, it came back to 3.1.... The psu is a pc-power&cooling 475, with modded lines which are solid no matter the load....
Looks like anything over 3.5V can kill the memcontroller, so even the "mickey mouse method" isn't safe....?
Strange how some ppl can run over 3.5VDimm for over months and how some CPU 's get killed instantly by spikes.
Could it be a combination of high Vdimm/high HTT?
I don't mind doing the Vmod but i don't want to take out a €450,- chip for the sake of 0.2V more Vdimm.
Man, i just wish there was a safe way of Vmodding this board. :(
Well, this is what happened to me, if others don't verify it then something went wrong to my setup and MM's method should be considered safe.Quote:
Originally posted by Zeus
Scary stuff mate! :eek:
Looks like anything over 3.5V can kill the memcontroller, so even the "mickey mouse method" isn't safe....?
The HTT was default when I upped the Vdimm... another strange thing is that the voltage don't seem to fluctuate at any other point, mem@load or not, only when adjusting the pot and/or change the setting from the bios....Quote:
Originally posted by Zeus
Could it be a combination of high Vdimm/high HTT?
Haven't clk'd my 3200+ much 227fsb max and about 2.9 - 3.0vdimm on a kv8 max3. CPU has also been on a k8nnxp but even less clk and volts. On the possitive side it's been running strong for 4months or so now.
This vdimm thing sounds like a surge from changed the vdimm via bios or pot, and oscillating before dropping back or up and down. Seems that the reg or mosfet is on the limit or maybe even the CPU mem controller is overheating or transistor junction breaking down and drawing high current/ voltage subsequently killing itself :confused: .
I like the idea of the onboard mem controller improving performance, but it does seem to have some drawbacks.
Just curious, has anybody tried overclocking an A64 board without doing any extreme volt mods and just using the voltages in the bios?
Before you throw things at me for asking that, I'm just curious from a testing standpoint if anybody has killed anything just using bios settings.
Thanks,
Kosmic
Not sure, but truth be told, you're asking the wrong forum since most everyone runs a vmodded vdimm. We can't hold a piece of hardware longer than 24 hrs without slapping the solder gun on it.
Lol yea, I figured that was the case, but I just wanted to see if anybody had tested it at stock to see if any deaths resulted. I personally have a bit of solder-phobia so if I decide to go with 754 I can report back in here. Might be a while though...
Meh I'm running my 4Th A64 right now un modded.
Stable @ 2.3Ghz 1:1 ram no effort, priming 8 Hrs so far no errors.
Will be voltmodding come early AM :D
I would love to get the chance to try overclocking one of these. My first died during a bios flash.Quote:
Originally posted by Kosmic
Lol yea, I figured that was the case, but I just wanted to see if anybody had tested it at stock to see if any deaths resulted. I personally have a bit of solder-phobia so if I decide to go with 754 I can report back in here. Might be a while though...
I got my RMA today and it died within an hour. Changed the CAS rating of the mem from 2.5 to 2 and away she went . I'm getting sick of this. Both stock, both auto with no mods.
I'm using Corsair XMS3500. What are other folks using when they're dying?
Try another motherboard, it might be the CPU'S aren't dieing but the motherboard playing up from a bad flash. Either way I'd be trying a new CPU/ MB combo.Quote:
Originally posted by dod
I would love to get the chance to try overclocking one of these. My first died during a bios flash.
I got my RMA today and it died within an hour. Changed the CAS rating of the mem from 2.5 to 2 and away she went . I'm getting sick of this. Both stock, both auto with no mods.
I'm using Corsair XMS3500. What are other folks using when they're dying?
Sorry to hear that dod, that really really sucks. I don't see how it is possible for the CAS rating to affect the chip. Sounds to me like you have a bad mobo that's doing the killing, but that's just a guess.
could it be that your VR is not a 'precision VR'?Quote:
Originally posted by RootX
Yes, after reading this thread and Mickey Mouse suggestion, I didn't change the Vdimm value from bios... was set to auto before I started turning the pot.... and I was turning it real slow.... 3.0, 3.05, 3.1 and suddenly, both the multimeter and the bios screen showed 3.66....just for a sec or two, without touching the pot, it came back to 3.1.... The psu is a pc-power&cooling 475, with modded lines which are solid no matter the load....
i mean, normal pots are supposed to stick to the before set resistance, but they don't guarantee linear resistance while actually TURNING the VR!!!
Only precision VRs are supposed to act in a linear way while changing.
So - if you change the resistance on the VR under current you take the risk of wrong values for a short time.
just a thought...
This is what I'm running right now:
http://www.gonad.org/upload/images/240x10.jpg
LDT @ 2.5, Ram 1:1 slot 1&3 :up:
schroet, you could have linked to your 2nd post.
no offence.
I'll do that from now on, thanks for the heads up :toast:Quote:
Originally posted by Goldlocke
schroet, you could have linked to your 2nd post.
no offence.