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clockgen + Dell system = no work?

N

NecessaryEvil

Guest
A friend of mine tried Clockgen (the 875/865 version) on his Dell Dimension 4600.


It would not detect the values properly.

Is this a fluke, or are Dell's immune to the powers of Clockgen?
 
Manafactures lock the bios so you cant overclock on systems such as dell,hp etc...

You would need to buy a new mobo well if it would fit in the first place.
 
well it's more than just the bios, their clock generators will only do the standard fsb's.
 
I know they can't OC via the BIOS, wasn't sure if Clockgen would work on it the way it has with my old Emachines M6805 or not.
 
NO wonder dude if he has a p4 thats why, read they only work for amd systems.
 
clockgen works for both AMD and P4. It's dependent on the clock generator support, not the cpu core.

Rule of thumb. Don't by a manufactured PC if you really want to overclock. Dells are locked, as are Gateways, Toshiba, HP, Compaq, and the list goes on. Not only do their clockgenerators (PLL's) not support many bus speeds, but they also don't connect to the SMBUS which is often how a program like Clockgen or CPUFSB connect to and read/write values to the PLL.
 
The clock generator in the 4600 only supports a few fixed FSB/memory ratios (100/133/200 QDR ONLY). No 1MHz adjustments. Look at the chip part number, then check the datasheet online. I did that when I had a 4600 several months ago.

The 8300/400SC does have a 1MHz adjustable clock generator on it, but it's frustrating to use becase the steps are not linear. It's trial and error while the computer locks up for most of the steps in the overclocking program.
 
pxc said:
The clock generator in the 4600 only supports a few fixed FSB/memory ratios (100/133/200 QDR ONLY). No 1MHz adjustments. Look at the chip part number, then check the datasheet online. I did that when I had a 4600 several months ago.

The 8300/400SC does have a 1MHz adjustable clock generator on it, but it's frustrating to use becase the steps are not linear. It's trial and error while the computer locks up for most of the steps in the overclocking program.
Click to expand...

Heh Im not eve gonna touch my cpu Im afraid too and I feel 3200 mhz or mine runs at 3215 mhz / 803.9 fsb is just enough.
 
Thanks for the info, I'll pass it along.


I fugred it wasn't likely to work....but half a chance is beetter than not trying at all, right?
 
just fyi, ive read stories of people using CPUFSB on Dell 4600's before. I haven't personally tried it myself, but that's because I don't have any better fans or heatsinks to leave room for a performance boost. Oh, and 1 more thing, I DID used to have an old refurbished Compaq from about '99 that I found the jumpers for OC'ing on, I didn't ever mess with them though. (PS - It was the supplied mobo, and it had 96 mb's of SGRAM[?]) --- wait, you live in Bloomington too?
 
CPUFSB works on my GX260, you need to find the IC on the mainboard and then apply that in the app...

Have fun

MD
 
jamesb2147 said:
just fyi, ive read stories of people using CPUFSB on Dell 4600's before.
Click to expand...
I'll bet the story is that it was useless in most cases. :p

The clock generator on the 4600 doesn't support 1MHz FSB tweaking. I had one and looked up the clockgen datasheet. It does support 100, 133 and 200 QDR FSB speed and that's about it.
 
I wouldnt recommending upgrading the motherboard in dells they switch the pins around on there psu and it can damage your new mobo.
 
KoZLop said:
I wouldnt recommending upgrading the motherboard in dells they switch the pins around on there psu and it can damage your new mobo.
Click to expand...
LOL Welcome to the years after 2001. All Dimensions (and the Optiplex and PowerEdge models based on Dimension models) for the last few years use a standard ATX or ATX-12v PSUs and standard ATX power connectors on the motherboards.

I've used Dell motherboards (2350/2400/4600 fit standard microATX motherboards) and Dell PSUs interchangeably with regular motherboards and ATX PSUs. And I've upgraded PSUs in 4550/8250/400SC cases.

If you don't believe me, check the pinout yourself. I already have and it IS standard. You have to reach back to old P3 Dimension models to find the non-standard PSUs.
 
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