The Conroe865PE thread... for AGP users... stock and mod

[Azrael5]

EDIT to the last POST: I've just noted that the P6 microcode into the 1.72 bios and the 775i65g r3.0 bios appear to be the same: same length, so I assume that both the cpu microcode files are the same. I ignore how this can be possible considering the different date of the bios. I assume that the microcode consider only the cpu family.

 

[Pota]

My new baby is running sweet, but my SSD is sick. I just RMAed a 2 year old drive due to file corruption. The drive is an OCZ Arc 100 240GB. I have no idea when it became faulty. What's more, drive diagnostic tools seem useless at detecting such issues.

 

[Pota]

My E5800 cpu vcore keeps moving around under load and at idle, see readings below. Seems excessive, I don't recall any other board behaving this way. Not surprisingly, my overclocking results are underwhelming. Is this common behaviour for this board or have I got a dodgy board ?

CPU-Z readings under a p95 SmallFFT load:
1.216v
1.224v
1.232v
1.240v
1.248v
1.256v
1.264v

CPU-Z readings at idle (no load):
1.248v
1.256v
1.264v
1.272v
1.280v

 

[TRWOV]

Not really sure but, for example, my QX6800 won't go north of 3.2Ghz on the Conroe865PE while the same CPU went to >3.5Gzh easily on a 965 board.

 

[Pota]

Not really sure but, for example, my QX6800 won't go north of 3.2Ghz on the Conroe865PE while the same CPU went to >3.5Gzh easily on a 965 board.

Yeah I hear what you're saying, Conroe865pe isn't an overclockers' board. That being said, I had the same cpu do 3.8 Ghz in a p5pe-vm (same 865 chipset), best I can do with my Conroe865pe is 3.5Ghz. I assume the unstable Vcore on my Conroe865pe is limiting my overclock. Here's a graph of my vcore under load:

 

[Pota]

I decided to test the same E5800 in the other board (p5pe-vm).

Observations:
Like the Conroe865pe, the vcore moves around alot. See graph.
The p5pe-vm's average vcore of 1.315v is much higher than the Conroe865pe's 1.245v
This particular E5800 cpu has a default vid of 1.2875 as reported by the Core Temp program.

Conclusion:
Conroe865pe's bios is setting the vcore significantly lower than the similar p5pe-vm board. Of course, neither board has vcore adjustment.

 

[Pota]

"Keyboard / Interface Error" solution ...
I got this POST error after installing a cpu. Both USB and PS/2 mouse keyboard were disabled and not responding.
Removing the battery and clearing the CMOS did nothing, but I might not have powered off long enough for the capacitors to drain fully.
I managed to fix the problem by setting the PS2_USB_PWR1 jumper from 2_3 to 1_2. The error went away and the mouse and keyboard is working again.

More Conroe865pe overclocking adventures ...
I installed a spare pentium e6600 (wolfdale) 3.06 Ghz and overclocked it to 11.5 x 280 = 3.22 Ghz; 285 wasn't stable. Results of performance tests I ran on my board suggest the e5x00 vs e6x00 wolfdales are equal at the same clock speed. I suppose an overclocked e6800 could do 12.5 x 280 = 3.5 Ghz, but I prefer the overclocked e5800 because it has a higher (x16) multiplier.

Summary
e5800 on my Conroe865pe does 16.0 x 220 = 3.52 Ghz;
e5800 on my p5pe-vm does 16.0 x 230 = 3.68 Ghz
e6600 on my Conroe865pe does 11.5 x 280 = 3.22 Ghz

 

[TRWOV]

I recall Captain Harlock was able to take his to FSB300 with a Q6700. Golden board. I think my maximun was 280-ish as well

 

[Azrael5]

what's the best memory bandwidth got with this mainboard?

 

[Pota]

Unfortunately, I just noticed a bulging cap next to the two voltage regulators under the agp slot. The pcb around that area is discoloured due to excessive heat I suppose. This may explain the POSTing difficulties and errors I've been getting.

 

[eidairaman1]

Unfortunately, I just noticed a bulging cap next to the two voltage regulators under the agp slot. The pcb around that area is discoloured due to excessive heat I suppose. This may explain the POSTing difficulties and errors I've been getting.

expect other failing caps to happen, if you have a steady hand you could probably replace them, if not find a shop that can, make sure to have a comprable cap for it (same ratings) if possible a solid cap vs a electrolytic version

 

[Pota]

expect other failing caps to happen, if you have a steady hand you could probably replace them, if not find a shop that can, make sure to have a comprable cap for it (same ratings) if possible a solid cap vs a electrolytic version

I'm thinking about getting a soldering station and fixing it myself. Until then, I'm going to use my spare i865 775 board, ASUS p5pe-vm. I got both on ebay as one lot.

 

[eidairaman1]

I'm thinking about getting a soldering station and fixing it myself. Until then, I'm going to use my spare i865 775 board, ASUS p5pe-vm. I got both on ebay as one lot.

do the research on good caps

 

[revin]

I recall Captain Harlock was able to take his to FSB300 with a Q6700. Golden board. I think my maximun was 280-ish as well

Indeed, as did I also We were trading back and forth in the benching and data gathering for >. Lemondesoda did as well but usually was less as he was test focused other than just the O/C of the board.

 

[Pota]

Now both boards (Conroe865pe and p5pe-vm) have a swollen cap, I hadn't noticed any swollen caps when I got them, I only noticed the weak caps after bench and stress testing overclocks under heatwave conditions

I'd like to replace all the caps on both boards myself, but professional solder / desoldering tools cost a fortune, and no one recommends buying el cheapo brands.

Anyway, I've mounted the 865pe in case and it seems to be running ok at stock speed. Current specs are :

Fractal Design Core 3000
ASRrock Conroe865pe rev 3.00, 1.72 bios,
E5800
Stock cpu heatsink fan with noctua low noise adapter
2 x Buffalo 1GB 400Hz CL3
Radeon 9600 GV-R96X256V with fan removed
X-Fi XtremeGamer Fatal1ty Pro SB0460
XFX TS 550W
Samsung 830 120GB
Front-midship 140mm fan @ 9v (noctua black adapter)
Rear 120mm fan @ 7v (noctua blue adapter)

 

[TRWOV]

Better take care of those. Recapping will likely enhance the stability of power delivery too.

 

[eidairaman1]

time for solid state caps

 

[Pota]

time for solid state caps

Has this been done before? Who's going to donate their board to do a solid cap transplant experiment

 

[eidairaman1]

Has this been done before? Who's going to donate their board to do a solid cap transplant experiment

You can find them online, just make sure values are the same as electrolyric version. I have an AMD board.

 

[Pota]

You can find them online, just make sure values are the same as electrolyric version. I have an AMD board.

Ok thanks I'll look into it. I'm currently looking at this website to learn the basics of recapping http://www.capacitorlab.com/index.htm

 

[dzsoki]

Has this been done before? Who's going to donate their board to do a solid cap transplant experiment

Yes, this is a modded Conroe865PE, where all the capacitors are replaced to Japanese (Rubycon, Sanyo, Nippon chemi Con and Nichicon) capacitors.
10 Nippon ChemiCon NCC KZH Series 16V 100UF Capacitor
6 Rubycon MBZ 6.3V 1500UF LOW ESR Motherboard Capacitor
20 Sanyo WG 6.3V 1000UF LOW ESR Motherboard Capacitor
9 Nichicon LF 16V 100UF L.ESR Aluminum solid Capacitor

I recommend this seller to buy genuine Japanese capacitors:
http://www.ebay.co.uk/usr/egekecu?_trksid=p2047675.l2559

 

[Pota]

Yes, this is a modded Conroe865PE, where all the capacitors are replaced to Japanese (Rubycon, Sanyo, Nippon chemi Con and Nichicon) capacitors.
10 Nippon ChemiCon NCC KZH Series 16V 100UF Capacitor
6 Rubycon MBZ 6.3V 1500UF LOW ESR Motherboard Capacitor
20 Sanyo WG 6.3V 1000UF LOW ESR Motherboard Capacitor
9 Nichicon LF 16V 100UF L.ESR Aluminum solid Capacitor

I recommend this seller to buy genuine Japanese capacitors:
http://www.ebay.co.uk/usr/egekecu?_trksid=p2047675.l2559

Ok thanks for the info. I haven't done my board yet

Note that the list you mention doesn't seem entirely correct - the first item should be 4 x 1000uF 16v as shown below.

The original caps on my board are:
4 1000uF 16v 20x8 Nichicon HM(M) 1.87A
6 1500uF 6.3v 20x8 OST RLX UltraLowESR 0635 1.65A
20 1000uF 6.3v 12x8 OST RLP 0.555A 0640
9 100uF 16v 8x6 OST RMH 0.095A 6.3x7 0632

Also, I believe the general rule or recommendation is to use about half the capacitance when moving to solid caps.
So the 100uF cap would be replaced with a 47uF or 56 uF solid cap.

 

[AsRock]

Yes, this is a modded Conroe865PE, where all the capacitors are replaced to Japanese (Rubycon, Sanyo, Nippon chemi Con and Nichicon) capacitors.
10 Nippon ChemiCon NCC KZH Series 16V 100UF Capacitor
6 Rubycon MBZ 6.3V 1500UF LOW ESR Motherboard Capacitor
20 Sanyo WG 6.3V 1000UF LOW ESR Motherboard Capacitor
9 Nichicon LF 16V 100UF L.ESR Aluminum solid Capacitor

I recommend this seller to buy genuine Japanese capacitors:
http://www.ebay.co.uk/usr/egekecu?_trksid=p2047675.l2559

Nice, In the US i would recommend Mouser and DigiKey for caps. I have spoken to RubyCon personally and they DO NOT use suppliers that use eBay according to them. Not trying to say they are all fake just that you cannot just ebay at all for such components.

Anyways that does look real nice .

 

[VLB]

Hi Conroe865pe owners. I have a semi-dead board which hangs on POST and I'd like to replace the BIOS chip in hopes that might help. I know it's a long shot, but I miss tinkering with this board. Does anyone have an extra I could buy or know where I could have one flashed?

 

[Uazzamerican]

I think it's better if you search for a ch341a programmer. Really chip and effective, believe me.