OCing on ultra-d

[twitchee2]

which setting is the vcore? i dont kno waht it is one of them say 104%,.... other has like .850,.90.... waht do i increase cuz my comp was unstable at 220fsb

 

[Suspicious-Teach8788]

Actual voltage = CPU VID + CPU VID Special.

So.

If you had 1.35V with the 104% selection, you are running at 1.35 * 104% = 1.404 volts.

The board is usually pretty damn accurate. Don't trust software readings. Only trust a multimeter. From my 3 - 4 readings I've done versus software, my software undereads by about 0.04 to 0.05. Whatever I set as the theoretical voltage is usually what I get with a multimeter +/- 0.01 volts.

Leave startup VID @ auto. This is just the voltage initially applied to your CPU before the CMOS settings can be read. HOWEVER DO NOT SET regular CPU VID to auto (especially if ur using the 5V jumper for DRAM).

 

[twitchee2]

ok well i set the fsb to 220 and went to prime it and it fail right away so it is eigther the ram or the cpu

 

[Suspicious-Teach8788]

Voltage? Tell me what exactly you set.

As for OCing, you want to isolate components. If you're doing CPU overclocking drop your mem divider to like 1:2. Who cares how slow it runs. You're trying to find the maximum of the CPU.

I can run 220 @ 1.4 volts usually. No prime problems. I think I've hit like 225 to 230 FSB. with 1.404.

 

[twitchee2]

i want to run 1:1

 

[twitchee2]

waht should i sec dimmv at?

 

[twitchee2]

ok well i bumped the dimm v up to 2.7 and it just restarted when i got into windows so that didnt work. any ideas?

 

[GamerExpress]

Read up on the DFI thread located here on the anandtech forums in the overclock section.

I have my 3700+ San D at 2.85 on the DFI and it's not really pushing it too bad yet, I am still at 1.5v not 1.55 on the cpu.

 

[Cuular]

If your system is the one in your sig, then setting Dimm voltage to 2.8, and forcing 1.45 CPU with vid + special at 104% should work. I'm running a Venice core 3000+ at 9X289 with the patriot low latency memory, but downgraded from 200 to 166 speed for the memory. I'm not sure what the multiplier is by default on your 3700 though. Depending on what that is, 220 may be pushing the limits. On the 3000 venice core by default the multiplier is at 9. On a 4400 X2 where it was 11, 220 was the place where it started getting quirky. I'm guessing on the 3700+ the multiplier is higher so you will get a much lower bus speed before you have to lower the multiplier and start pumping the speed up.

Basically for the higher OC's you will have to lower the memory setting in relation to how high you are pushing the "bus speed". In tests that just test, the memory subsystem, you may see a small difference in performance. But in real world tests, since you are raising the bus speed so high, it turns out at 285 with the memory divisors to be running the memory bus at 196, just 4 short of the 200 mark, you see no loss of performance at all.

 

[twitchee2]

well im pritty sure its the ram. i set it to 220 with stock settings and ran prime withlittle ram testing and it started muching away with no problems but when i put it in with lots of ram testing i get a error right off the bat. yes it is the comp in the sig and the ram are NOT the TCCD chips

 

[twitchee2]

ok so i put the fsb on 220 and 2.8 on the ram and 1.404 on the cpu. it wnet thought loading windows then just restarted. i put everything back to stock with a fsb of 215 and running just fine. how do i set a divider?

 

[imported_akito]

i am pretty sure that if you go into the Genie Menu, the first selection is like "DRAM settings" or something like that; has a triangle next to it. if you go into that menu, i think the first setting is the divider.

i'd set your HTT multiplier to 3x, run a divider of 166 (5/6), set fsb to 200, set all volts at default, then up your fsb to 210 and see if it is stable, then 220, 230, 240, and if it can't handle it, up the cpu volts. i got my x2 3800+ running at 2.4GHz at 1.4v ran superpi and other stuff for 8 hours, going to do more torture testing later once i get a new HS (using stock fan and hs right now) cpu temp is 29C idle and it peaked at 42C during the 8 hour cpu burn in test.

 

[twitchee2]

ok ill try that. is the LDT/FSB frequ ratio the HTT multi?