[ferrari12508]

Motherboard - http://www.asrock.co...333-D667%20R1.0
CPU - http://www.newegg.co...N82E16819115030
Video Card - http://www.newegg.co...N82E16814161098

Recently I was trying to overclock my CPU. The Multiplier is set to 7 by default and the bus speed is 333MHz. So for some reason I cant change my multiplier in my BIOS, its locked for some reason, but I was able to get the Bus speed up. Well I got the bus speed to top out around 365MHz or so and it was a very very modest overclock. I checked the temps and it was around 37C under 50% load after 24 hours and the fans at 50%. Well i decided that the overclock wasnt worth it, so I put it back down to the clock settings and now its running 39C with the fans at 100%. This is running on an aftermarket air cooler that has 2 92MM fans.

First off, I was trying to overclock it more but I dont know if I can because I got a green GPU that gets power from the PCI bus. When I purchased the board, while cheap, was supposed to be a ok overclocker. I feel that an extra 200MHz isnt that good at all. Could it be possible thatwhen the Video cards bus speed gets up to 125 or so from 115 that it causes the system not to communicate correctly?

Secondly, my CPU bus to RAM bus is running at a 4:3 ratio, as I don't know how to overclock the RAM with the BIOS on my motherboard. All that I can do to it is chang the CAS Latency and select the voltage to it. But the problem with the voltages is that the options are Auto, Low, Medium, High. I'm not sure the difference between high and medium so I just leave it on auto, thats the default.

While this isnt the greatest CPU ever, its supposed to have a good ability to overclock to some higher speeds. the highest ive gotten it to is 2.53GHz or so and after that the computer refuses to boot up. I'm mainly wondering why the temps went up, but if someone can find why I can't Overclock anymore, I wouldn't mind that either.

[no2pencil]

ferrari12508, on 21 Jul, 2008 - 10:46 AM, said:

Recently I was trying to overclock my CPU. The Multiplier is set to 7 by default and the bus speed is 333MHz. So for some reason I cant change my multiplier in my BIOS, its locked for some reason,

Is it possible that the bios doesn't have control over the multiplier, & that is set with Jumpers on the motherboard?

[MorphiusFaydal]

Intel and AMD lock the multipliers on all their chips. If you want to change the multiplier, you're going to have to buy an Extreme Edition chip... They're the only ones that are unlocked.

I believe that there's a hard-mod you can do that will unlock the multiplier, but it's not something I'd care to try out myself.

no2pencil, on 21 Jul, 2008 - 09:58 AM, said:

ferrari12508, on 21 Jul, 2008 - 10:46 AM, said:

Recently I was trying to overclock my CPU. The Multiplier is set to 7 by default and the bus speed is 333MHz. So for some reason I cant change my multiplier in my BIOS, its locked for some reason,

Is it possible that the bios doesn't have control over the multiplier, & that is set with Jumpers on the motherboard?

And multipliers haven't been controlled by jumpers since the days of the early Pentiums.

[no2pencil]

MorphiusFaydal, on 21 Jul, 2008 - 11:10 AM, said:

And multipliers haven't been controlled by jumpers since the days of the early Pentiums.

1.) Shows my age ... I figured that no one did this anymore. The only thing I've seen with jumpers lately is flashing the bios. Worth asking, I guess. Maybe not!
2.) Shows my daringness with processors. When it comes to hardware, I hardly push the limits. I use it for what it was designed for.

[1lacca]

MorphiusFaydal, on 21 Jul, 2008 - 05:10 PM, said:

Intel and AMD lock the multipliers on all their chips. If you want to change the multiplier, you're going to have to buy an Extreme Edition chip... They're the only ones that are unlocked.

I believe that there's a hard-mod you can do that will unlock the multiplier, but it's not something I'd care to try out myself.

Or Black Edition as AMD calls them. However I doubt that you could unlock any multiplier with any hard-mod, because fuses are blown with laser inside the chips (since early Pentiums by Intel, and a bit later by AMD)

MorphiusFaydal, on 21 Jul, 2008 - 05:10 PM, said:

And multipliers haven't been controlled by jumpers since the days of the early Pentiums.

In the P3/P4 era AMD Durons and Athlons still could be controlled by jumpers after the graphite mod (just check the ASUS A7V mobo for example).

[MorphiusFaydal]

Heh... I've never hard-modded a processor, so I didn't know that you could jumper control the multiplier on one.

And I just looked it up... There *is* a hard-mod for LGA775 that can be used for overclocking... But it doesn't unlock or increase the multiplier (a la old school Athlon XP's..), but instead, increases the FSB speed. It is (AFAICT) only used on the Intel chips that have lower FSB speeds. This mod just sets the FSB speed that the chip reports to the mobo as higher.

EDIT: The Athlon-XP modifier could be unlocked by painting conductive paint between the contacts of the J1 fuse on the chip surface (not the core... the PGA packaging bit..)

This post has been edited by MorphiusFaydal: 21 July 2008 - 10:08 AM