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IQYHA 2600 Mobile Athlon XP

Solus

Solus

Solus

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Joined
5 Oct 2006
Posts
892
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Cardiff
Okay, my mate recently gave me this as he just upgraded his rig (I run 2 rigs atm). My 2nd rig is currently running an ASRock K7-Upgrade 880 with a Sempron 2200+ @ 200x9 = 1800mhz. 2xDDR333 512 in dual channel.

I'm going to have a little play about with this 2600+ (IQYHA) in this rig. Do you think I should go for a 166fsb due to running in sync with the ram?

Also, can I change the multiplier via jumper? (I've heard you can't but just checking).

I'm hoping to get something around the 166x14 mark to make around 2.3ghz, what do you guys think?
 
Ideally running in synch with your RAM should give you the best performance. The best way would be to keep your RAM in synch (1:1) and try pushing your FSB upto 200Mhz to see if its stable if your mobo allows it (which I think it does going on your current CPU clock).

I don't think you'd have jumper settings for the multiplier on that mobo, is there no option in the BIOS for it?

With the right board and half decent cooling 2.5-2.6Ghz is easy with an IQYHA, whether your board is upto it is another matter.
 
Hey and thanks for your reply.

The board does support 200fsb, but doesn't have PCI/AGP locks, so basically the max I could probably go is about 215.

I could perhaps run it like this, with my ram async at 133/333? But would this reduce performance compared to a lower FSB, higher multiplier and sync'd memory and cpu?

Also I do have multiplier settings I can set on the motherboard using jumpers (not via bios) but I have heard that this doesn't make any difference to the multiplier it uses as it is a mobile processor, so it always uses a multiplier of 6? I'd like to know if this is true before I try it out.

Obviously the only way I could get around this then would to boot at the lower clock speed then alter it using CPU Crystal ID in Windows.

EDIT: Just to make it clear what I'm asking here, as I did cover a bit of all aspects. Which would be faster? For example: 166fsb, 14 multiplier and Memory in dual channel in sync with cpu or 200fsb, 11.5 multiplier and memory not in sync with cpu bus speed (running at 166).
 
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Like our beloved Don said, Socket A ideally should run in a 1:1 ratio.
Due to the design of Socket A you kill performance running ram and CPU out of synch.
 
Solus said:
Hey and thanks for your reply.

The board does support 200fsb, but doesn't have PCI/AGP locks, so basically the max I could probably go is about 215.

I could perhaps run it like this, with my ram async at 133/333? But would this reduce performance compared to a lower FSB, higher multiplier and sync'd memory and cpu?

Also I do have multiplier settings I can set on the motherboard using jumpers (not via bios) but I have heard that this doesn't make any difference to the multiplier it uses as it is a mobile processor, so it always uses a multiplier of 6? I'd like to know if this is true before I try it out.

Obviously the only way I could get around this then would to boot at the lower clock speed then alter it using CPU Crystal ID in Windows.

EDIT: Just to make it clear what I'm asking here, as I did cover a bit of all aspects. Which would be faster? For example: 166fsb, 14 multiplier and Memory in dual channel in sync with cpu or 200fsb, 11.5 multiplier and memory not in sync with cpu bus speed (running at 166).
Click to expand...

No Socket A mobos supported dual channel RAM as far as I know. Also, I doubt you'll be able to push the FSB that high without corrupting your HD/windows install. I know, as my old Socket A system had a mobo in it that didn't have agp/pci locks and I did screw my HD right up :(
 
http://www.asrock.com/news/K7Upgrade880.htm

That link states Dual Channel, and it definitely says running in dual channel in CPU-Z.

Anyway, thanks for the advice. I think I'll try memory and processor at 166fsb, and multiplier at 14 to start out. I can't try it tonight as I need some thermal compound (i'm all out atm :( ).

I'll let you guys know how it goes, again thanks for all response and help.
 
There is a way, you know... ;)

It's konwn as the "wire mod" or "L12/13 mod" and requires inserting a bit of telephone wire into the CPU socket (to bridge two... errr... bridges) between the CPU pins. This will trick your CPU into working at 166MHz or 200MHz, depending on how far you take the mod.

This is how to get around the PCI/AGP frequency issues that plagued VIA-based systems a few years ago. I'm using it at the moment to trick my motherboard into addressing my Tbred B 1700XP into running at 200MHz FSB.

It works a treat and only takes a bit of fiddling once the CPU is out its socket. Now, I managed it on an SFF system, so it will be a doddle for you.
 
I can actually set the FSB via jumper on my board, and it works fine (it's how I overclocked my sempy above). And the PCI/AGP buses seem to be at stock (33/66), so i'm pretty glad the jumpers on my board solve that problem.

Or have you told me this in order to benefit me in another way? It's just the multiplier I can't set without a program in Windows.
 
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El Jimben said:
No Socket A mobos supported dual channel RAM as far as I know. Also, I doubt you'll be able to push the FSB that high without corrupting your HD/windows install. I know, as my old Socket A system had a mobo in it that didn't have agp/pci locks and I did screw my HD right up :(
Click to expand...

a lot of Socket A mobos support dual channel, all the NForce 2 boards and the Via 600 based ones too iirc.

Getting the FSB to 200Mhz will be fine as the board supports it, so will have a PCI/AGP divider for 200Mhz.
 
El Jimben said:
No Socket A mobos supported dual channel RAM as far as I know.
Click to expand...

Neigh. That is not correct. nForce2 mobos did Dual Channel. I remember it being one of those hyped selling points a few years back :) The performance increase was not that great. 5% IIRC.
 
Killajaz said:
Neigh. That is not correct. nForce2 mobos did Dual Channel. I remember it being one of those hyped selling points a few years back :) The performance increase was not that great. 5% IIRC.
Click to expand...

Yeah it was really not worth the hype, the socket A CPUs weren't quad pumped like the P4s so made little use of the extra bandwidth.
 
Hey all, just thought I'd get back to you to say my first attempt is doing fine.

http://www.l33t-mayhem.com/overclock.JPG

I know the temp seems a bit high in that print screen, I took the case apart again and noticed a lot of dust under the fan, on top of the heatsink. So I cleared this off and I now idle at 45c rather than 47c. I know it's not a big difference, but this seems fine for a mobile processor though?

I know they have some sort of higher max temp compared to desktops.

EDIT: I have now placed the multiplier at 15x to give a speed of 2.5ghz, everything's prime stable etc. Temps are 50c Idle, 54c Load. Are these temps okay considering it's a mobile CPU?
 
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Bump,

at 15x166 I got a blue screen while priming. Could this be the limit of the processor? It can't be heat related as it simply doesn't go any higher between a multi of 14 and 15.
 
Solus said:
Bump,

at 15x166 I got a blue screen while priming. Could this be the limit of the processor? It can't be heat related as it simply doesn't go any higher between a multi of 14 and 15.
Click to expand...

Am I missing something here... You have an via 880 chipset mobo which supports 200fsb and a mobile barton with good code IQYHA right?

If so that chip and mobo should do at least (10 or 11X) @200fsb at lowest cpu core voltage.

The kt880 based boards should definitely have the correct PCI/AGP divider for 200Mhz as Minstadave stated. Also dual channel was implemented in the via kt880 based boards so that should be fine. Though as already said, probably won't make much difference.

I wouldn't mess with increasing the PCI/AGP out of spec. Best to stick to 200fsb and to adjust the multiplier to the max you can get it at your desired voltage.

Good luck! :)
 
Hi, the reason I am running @ 166 is so the cpu and memory are in sync with another. As I have 1 stick of DDR333 and 1 stick of DDR400 in this system.

If putting the processor at 200fsb and the ram in async at 166 would this result in a performance decrease rather than 166x14?
 
Solus said:
If putting the processor at 200fsb and the ram in async at 166 would this result in a performance decrease rather than 166x14?
Click to expand...

It probably would yes, but have you tried running your RAM at 200Mhz? If you slacken the timings and up the Vdimm you may well be able to run at 200mhz in synch.
 
I did try this previously with the old Sempron, and I used to get a blue screen now and again. I suppose I could try to slacken the timings, but i'm hesitant to put more VDimm through it, as obviously I can't monitor the temperature of my ram sticks.
 
Solus said:
I did try this previously with the old Sempron, and I used to get a blue screen now and again. I suppose I could try to slacken the timings, but i'm hesitant to put more VDimm through it, as obviously I can't monitor the temperature of my ram sticks.
Click to expand...

You can happily ramp Vdimm upto 2.8-2.9V without any consequences, RAM only starts to get really warm above 3V and even then its pretty difficult to damage modules.
 
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