4000+ OC not working

redrider773

redrider773

New Member
I read OC101, and tried to OC my San Diego 4000+ accordingly, using frequency multiplier. I left the CPU frequency at 200, and took the standard 12x multiplier and jjacked it to 14x. This theoretically should give me a CPU speed of 2.8Ghz, but it remains at 2.41Ghz. Any suggestions?
 
wait, in the BIOS there was a multiplier option, and I just upped it... I'm not too familiar with OCing, is the 4000+ multiplier locked?
 
redrider773 said:
wait, in the BIOS there was a multiplier option, and I just upped it... I'm not too familiar with OCing, is the 4000+ multiplier locked?
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AMD however has approached the issue (as they've always been more partial to OCing) by making two separate product lines, a mainstream line which is upward locked like Intel's and an enthusiast line which is completely unlocked.
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The FX line is the enthusiast line and you dont have a FX.
 
4x512Mb OCZ Gold DDR400 @ 466; 2, 2-2-2-5
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How'd you get the RAM to DDR466 and still keep 2-2-2-5 (or the simpler question: how'd you get the DDR466 to start with)
 
Oh, sorry, thats old. I just got a new motherboard on X-Mas. It's at DDR400 right now. But I should just up the FSB to OC this then?
 
1. Read OC101 (really read too, things will be then become apparent to you indicate that post#1 couldnt have happened)
2.AMD K8s dont have FSBs (might consider reading CPU101 too :))

:)
 
well I tried, got to 2.84, but I booted windows fine, and when I loaded my user, it flashed this blue screen resal fast and restarted. I tried just upping the VCore, didn't help. I'll just leave it here.
 
thanks. it was defualt 1.400, and I got the frequency up to 217 before i failed POST, so I put it to 1.425. Got frequency to 225, and anything higher gives me the blue screen restart thing. I tried putting it to 1.450, which is the mobo's max option, but it didn't help. It's weird, I got frequency to 237, then this problem started, had to restrt OC, and can't get it past 225 now.

EDIT: But now I'm looking at my PC Probe and it says Vcore is 1.47-1.49. This is odd, becuase it's still set at 1.425 in BIOS.
 
well I tried, got to 2.84, but I booted windows fine, and when I loaded my user, it flashed this blue screen resal fast and restarted. I tried just upping the VCore, didn't help. I'll just leave it here.
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Thats cuz u need to up the vDimm ;)


So, now that you've had some time ... what are yer timings like with that memory :)

EDIT: But now I'm looking at my PC Probe and it says Vcore is 1.47-1.49. This is odd, becuase it's still set at 1.425 in BIOS.
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Neither is accurate
 
vdimm = voltage of the ram. vcore is the cpu voltage, and at the frequency your ram is at hes saying it cant take it without higher voltage. remember though, higher voltage = alot more heat. make sure your ram and your cpu have good cooling on them.
i only had to raise my frequency, use a memory divider and i was fine. my mobo took it fine, and i didnt have to mess with vcore. i like my overclock alot. 2.4ghz is good enough :rolleyes:
read overclock 101... when you raise the base frequency it raises dimm frequency too. thats why hes saying you got the blue screen, the ram needs more voltage in order to handle the frequency... could also be the hypertransport frequency (raising base frequency also increases FSB) but the blue screen is normally a ram error.
 
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Okay, so If I can up that, it may be more stable for higher frequency?

EDIT: so if they are stock 2.8v, I should bump them to 3.0v? Also, I am a little skeptical because the option right now is on "Auto".
 
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Okay, I tried this, now having the vCore at 1.425, th vDimm at 3.0v, and the frequency got up to about 230, then I get the flashing blue screen to reboot at the begining of windows boot up now.
 
I wouldnt put your VDIMM that high. Most RAM doesnt like over 2.8 V and 3 V can be dangerous long term.
 
yea, id say use a memory divider. that is change from 200mhz to 166mhz. it will still raise memory frequency, however using 166mhz ultimately is like using a multiplier of .83... for instance, i have my memory at a 166mhz(ddr333) memory divider, and my fsb is at 240mhz. therefore, my proc multiplier is 10 so thats 2.4ghz and my memory = 240x0.83 which is 200mhz or ddr400, its default clock. my memory KILLS though lol its so fast i love it..
also, if that doesnt work you can lower the hypertransport multiplier to 4, lowering the possibility of your motherboard hindering your o/c.
be careful though! 2.7ghz is extremely high for AMD processors! im sure youll be fine if you know what your doing though.
 
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